From e07956c25a3f176272b470c325016d81eed03ec6 Mon Sep 17 00:00:00 2001 From: vinnie Date: Mon, 21 Sep 2009 23:01:42 +0100 Subject: [PATCH] 6884175: CR cleanup for 6840752: Provide out-of-the-box support for ECC algorithms Reviewed-by: wetmore --- make/sun/security/ec/Makefile | 24 +- make/sun/security/other/Makefile | 10 + .../sun/security/ec/ECDHKeyAgreement.java | 26 +- .../sun/security/ec/ECDSASignature.java | 31 +- .../sun/security/ec/ECKeyPairGenerator.java | 23 +- src/share/classes/sun/security/ec/SunEC.java | 25 +- .../classes/sun/security/ec/SunECEntries.java | 127 +- src/share/native/sun/security/ec/ECC_JNI.cpp | 2 +- .../native/sun/security/ec/{ => impl}/ec.c | 0 src/share/native/sun/security/ec/impl/ec.h | 72 + src/share/native/sun/security/ec/impl/ec2.h | 146 + .../native/sun/security/ec/impl/ec2_163.c | 281 + .../native/sun/security/ec/impl/ec2_193.c | 298 + .../native/sun/security/ec/impl/ec2_233.c | 321 ++ .../native/sun/security/ec/impl/ec2_aff.c | 368 ++ .../native/sun/security/ec/impl/ec2_mont.c | 296 + .../native/sun/security/ec/impl/ec_naf.c | 123 + .../native/sun/security/ec/impl/ecc_impl.h | 275 + .../native/sun/security/ec/impl/ecdecode.c | 632 +++ .../native/sun/security/ec/impl/ecl-curve.h | 710 +++ .../native/sun/security/ec/impl/ecl-exp.h | 216 + .../native/sun/security/ec/impl/ecl-priv.h | 304 + src/share/native/sun/security/ec/impl/ecl.c | 475 ++ src/share/native/sun/security/ec/impl/ecl.h | 111 + .../native/sun/security/ec/impl/ecl_curve.c | 216 + .../native/sun/security/ec/impl/ecl_gf.c | 1062 ++++ .../native/sun/security/ec/impl/ecl_mult.c | 378 ++ src/share/native/sun/security/ec/impl/ecp.h | 160 + .../native/sun/security/ec/impl/ecp_192.c | 538 ++ .../native/sun/security/ec/impl/ecp_224.c | 394 ++ .../native/sun/security/ec/impl/ecp_256.c | 451 ++ .../native/sun/security/ec/impl/ecp_384.c | 315 ++ .../native/sun/security/ec/impl/ecp_521.c | 192 + .../native/sun/security/ec/impl/ecp_aff.c | 379 ++ .../native/sun/security/ec/impl/ecp_jac.c | 575 ++ .../native/sun/security/ec/impl/ecp_jm.c | 353 ++ .../native/sun/security/ec/impl/ecp_mont.c | 223 + .../native/sun/security/ec/impl/logtab.h | 82 + .../sun/security/ec/impl/mp_gf2m-priv.h | 122 + .../native/sun/security/ec/impl/mp_gf2m.c | 624 +++ .../native/sun/security/ec/impl/mp_gf2m.h | 83 + .../native/sun/security/ec/impl/mpi-config.h | 130 + .../native/sun/security/ec/impl/mpi-priv.h | 340 ++ src/share/native/sun/security/ec/impl/mpi.c | 4886 +++++++++++++++++ src/share/native/sun/security/ec/impl/mpi.h | 409 ++ .../native/sun/security/ec/impl/mplogic.c | 242 + .../native/sun/security/ec/impl/mplogic.h | 105 + .../native/sun/security/ec/impl/mpmontg.c | 199 + .../native/sun/security/ec/impl/mpprime.h | 89 + src/share/native/sun/security/ec/impl/oid.c | 473 ++ .../native/sun/security/ec/impl/secitem.c | 199 + .../native/sun/security/ec/impl/secoidt.h | 103 + test/sun/security/ec/TestEC.java | 20 +- test/sun/security/ec/certs/sunlabscerts.pem | 1317 +++++ test/sun/security/ec/keystore | Bin 0 -> 4288 bytes test/sun/security/ec/truststore | Bin 0 -> 1576 bytes .../security/pkcs11/ec/ReadCertificates.java | 10 +- .../security/pkcs11/sslecc/CipherTest.java | 2 +- 58 files changed, 19452 insertions(+), 115 deletions(-) rename src/share/native/sun/security/ec/{ => impl}/ec.c (100%) create mode 100644 src/share/native/sun/security/ec/impl/ec.h create mode 100644 src/share/native/sun/security/ec/impl/ec2.h create mode 100644 src/share/native/sun/security/ec/impl/ec2_163.c create mode 100644 src/share/native/sun/security/ec/impl/ec2_193.c create mode 100644 src/share/native/sun/security/ec/impl/ec2_233.c create mode 100644 src/share/native/sun/security/ec/impl/ec2_aff.c create mode 100644 src/share/native/sun/security/ec/impl/ec2_mont.c create mode 100644 src/share/native/sun/security/ec/impl/ec_naf.c create mode 100644 src/share/native/sun/security/ec/impl/ecc_impl.h create mode 100644 src/share/native/sun/security/ec/impl/ecdecode.c create mode 100644 src/share/native/sun/security/ec/impl/ecl-curve.h create mode 100644 src/share/native/sun/security/ec/impl/ecl-exp.h create mode 100644 src/share/native/sun/security/ec/impl/ecl-priv.h create mode 100644 src/share/native/sun/security/ec/impl/ecl.c create mode 100644 src/share/native/sun/security/ec/impl/ecl.h create mode 100644 src/share/native/sun/security/ec/impl/ecl_curve.c create mode 100644 src/share/native/sun/security/ec/impl/ecl_gf.c create mode 100644 src/share/native/sun/security/ec/impl/ecl_mult.c create mode 100644 src/share/native/sun/security/ec/impl/ecp.h create mode 100644 src/share/native/sun/security/ec/impl/ecp_192.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_224.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_256.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_384.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_521.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_aff.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_jac.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_jm.c create mode 100644 src/share/native/sun/security/ec/impl/ecp_mont.c create mode 100644 src/share/native/sun/security/ec/impl/logtab.h create mode 100644 src/share/native/sun/security/ec/impl/mp_gf2m-priv.h create mode 100644 src/share/native/sun/security/ec/impl/mp_gf2m.c create mode 100644 src/share/native/sun/security/ec/impl/mp_gf2m.h create mode 100644 src/share/native/sun/security/ec/impl/mpi-config.h create mode 100644 src/share/native/sun/security/ec/impl/mpi-priv.h create mode 100644 src/share/native/sun/security/ec/impl/mpi.c create mode 100644 src/share/native/sun/security/ec/impl/mpi.h create mode 100644 src/share/native/sun/security/ec/impl/mplogic.c create mode 100644 src/share/native/sun/security/ec/impl/mplogic.h create mode 100644 src/share/native/sun/security/ec/impl/mpmontg.c create mode 100644 src/share/native/sun/security/ec/impl/mpprime.h create mode 100644 src/share/native/sun/security/ec/impl/oid.c create mode 100644 src/share/native/sun/security/ec/impl/secitem.c create mode 100644 src/share/native/sun/security/ec/impl/secoidt.h create mode 100644 test/sun/security/ec/certs/sunlabscerts.pem create mode 100644 test/sun/security/ec/keystore create mode 100644 test/sun/security/ec/truststore diff --git a/make/sun/security/ec/Makefile b/make/sun/security/ec/Makefile index 297a2deab..53a3e3e9e 100644 --- a/make/sun/security/ec/Makefile +++ b/make/sun/security/ec/Makefile @@ -24,7 +24,7 @@ # # -# Makefile for building sunec.jar and sunecc native library. +# Makefile for building sunec.jar and sunec native library. # # This file was derived from make/com/sun/crypto/provider/Makefile. # @@ -121,7 +121,15 @@ CLASSDESTDIR = $(TEMPDIR)/classes # AUTO_FILES_JAVA_DIRS = $(PKGDIR) -include $(BUILDDIR)/common/Classes.gmk +# +# Exclude the sources that get built by ../other/Makefile +# +AUTO_JAVA_PRUNE = \ + ECKeyFactory.java \ + ECParameters.java \ + ECPrivateKeyImpl.java \ + ECPublicKeyImpl.java \ + NamedCurve.java # # Some licensees do not get the native ECC sources, but we still need to @@ -130,7 +138,7 @@ include $(BUILDDIR)/common/Classes.gmk # NATIVE_ECC_AVAILABLE := $(shell \ - if [ -d $(SHARE_SRC)/native/$(PKGDIR) ] ; then \ + if [ -d $(SHARE_SRC)/native/$(PKGDIR)/impl ] ; then \ $(ECHO) true; \ else \ $(ECHO) false; \ @@ -138,7 +146,7 @@ NATIVE_ECC_AVAILABLE := $(shell \ ifeq ($(NATIVE_ECC_AVAILABLE), true) - LIBRARY = sunecc + LIBRARY = sunec # # Java files that define native methods @@ -166,12 +174,12 @@ ifeq ($(NATIVE_ECC_AVAILABLE), true) # vpath %.cpp $(SHARE_SRC)/native/$(PKGDIR) - vpath %.c $(SHARE_SRC)/native/$(PKGDIR) + vpath %.c $(SHARE_SRC)/native/$(PKGDIR)/impl # # Find include files # - OTHER_INCLUDES += -I$(SHARE_SRC)/native/$(PKGDIR) + OTHER_INCLUDES += -I$(SHARE_SRC)/native/$(PKGDIR)/impl # # Compiler flags @@ -191,6 +199,10 @@ ifeq ($(NATIVE_ECC_AVAILABLE), true) include $(BUILDDIR)/common/Library.gmk +else # NATIVE_ECC_AVAILABLE + + include $(BUILDDIR)/common/Classes.gmk + endif # NATIVE_ECC_AVAILABLE # diff --git a/make/sun/security/other/Makefile b/make/sun/security/other/Makefile index 3f120fa47..2722fbc32 100644 --- a/make/sun/security/other/Makefile +++ b/make/sun/security/other/Makefile @@ -44,6 +44,16 @@ AUTO_FILES_JAVA_DIRS = \ sun/security/x509 \ com/sun/net/ssl/internal/ssl +# +# EC classes used by the packages above +# +FILES_java += \ + sun/security/ec/ECKeyFactory.java \ + sun/security/ec/ECParameters.java \ + sun/security/ec/ECPrivateKeyImpl.java \ + sun/security/ec/ECPublicKeyImpl.java \ + sun/security/ec/NamedCurve.java + # # Rules # diff --git a/src/share/classes/sun/security/ec/ECDHKeyAgreement.java b/src/share/classes/sun/security/ec/ECDHKeyAgreement.java index 8a61a7b11..5ed3ffe2b 100644 --- a/src/share/classes/sun/security/ec/ECDHKeyAgreement.java +++ b/src/share/classes/sun/security/ec/ECDHKeyAgreement.java @@ -39,21 +39,6 @@ import javax.crypto.spec.*; */ public final class ECDHKeyAgreement extends KeyAgreementSpi { - // flag indicating whether the native ECC implementation is present - private static boolean implementationPresent = true; - static { - try { - AccessController.doPrivileged(new PrivilegedAction() { - public Void run() { - System.loadLibrary("sunecc"); - return null; - } - }); - } catch (UnsatisfiedLinkError e) { - implementationPresent = false; - } - } - // private key, if initialized private ECPrivateKey privateKey; @@ -65,16 +50,12 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { /** * Constructs a new ECDHKeyAgreement. - * - * @exception ProviderException if the native ECC library is unavailable. */ public ECDHKeyAgreement() { - if (!implementationPresent) { - throw new ProviderException("ECDH implementation is not available"); - } } // see JCE spec + @Override protected void engineInit(Key key, SecureRandom random) throws InvalidKeyException { if (!(key instanceof PrivateKey)) { @@ -86,6 +67,7 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { } // see JCE spec + @Override protected void engineInit(Key key, AlgorithmParameterSpec params, SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException { @@ -97,6 +79,7 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { } // see JCE spec + @Override protected Key engineDoPhase(Key key, boolean lastPhase) throws InvalidKeyException, IllegalStateException { if (privateKey == null) { @@ -130,6 +113,7 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { } // see JCE spec + @Override protected byte[] engineGenerateSecret() throws IllegalStateException { if ((privateKey == null) || (publicValue == null)) { throw new IllegalStateException("Not initialized correctly"); @@ -150,6 +134,7 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { } // see JCE spec + @Override protected int engineGenerateSecret(byte[] sharedSecret, int offset) throws IllegalStateException, ShortBufferException { if (offset + secretLen > sharedSecret.length) { @@ -162,6 +147,7 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi { } // see JCE spec + @Override protected SecretKey engineGenerateSecret(String algorithm) throws IllegalStateException, NoSuchAlgorithmException, InvalidKeyException { diff --git a/src/share/classes/sun/security/ec/ECDSASignature.java b/src/share/classes/sun/security/ec/ECDSASignature.java index b2bf8936c..3c9857cd1 100644 --- a/src/share/classes/sun/security/ec/ECDSASignature.java +++ b/src/share/classes/sun/security/ec/ECDSASignature.java @@ -52,21 +52,6 @@ import sun.security.x509.AlgorithmId; */ abstract class ECDSASignature extends SignatureSpi { - // flag indicating whether the native ECC implementation is present - private static boolean implementationPresent = true; - static { - try { - AccessController.doPrivileged(new PrivilegedAction() { - public Void run() { - System.loadLibrary("sunecc"); - return null; - } - }); - } catch (UnsatisfiedLinkError e) { - implementationPresent = false; - } - } - // message digest implementation we use private final MessageDigest messageDigest; @@ -88,24 +73,13 @@ abstract class ECDSASignature extends SignatureSpi { * @exception ProviderException if the native ECC library is unavailable. */ ECDSASignature() { - if (!implementationPresent) { - throw new - ProviderException("ECDSA implementation is not available"); - } messageDigest = null; } /** * Constructs a new ECDSASignature. Used by subclasses. - * - * @exception ProviderException if the native ECC library is unavailable. */ ECDSASignature(String digestName) { - if (!implementationPresent) { - throw new - ProviderException("ECDSA implementation is not available"); - } - try { messageDigest = MessageDigest.getInstance(digestName); } catch (NoSuchAlgorithmException e) { @@ -299,8 +273,8 @@ abstract class ECDSASignature extends SignatureSpi { byte[] encodedParams = ECParameters.encodeParameters(params); // DER OID int keySize = params.getCurve().getField().getFieldSize(); - // seed is twice the key size (in bytes) - byte[] seed = new byte[((keySize + 7) >> 3) * 2]; + // seed is twice the key size (in bytes) plus 1 + byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2]; if (random == null) { random = JCAUtil.getSecureRandom(); } @@ -356,6 +330,7 @@ abstract class ECDSASignature extends SignatureSpi { // Convert the concatenation of R and S into their DER encoding private byte[] encodeSignature(byte[] signature) throws SignatureException { + try { int n = signature.length >> 1; diff --git a/src/share/classes/sun/security/ec/ECKeyPairGenerator.java b/src/share/classes/sun/security/ec/ECKeyPairGenerator.java index af98de60b..99b825212 100644 --- a/src/share/classes/sun/security/ec/ECKeyPairGenerator.java +++ b/src/share/classes/sun/security/ec/ECKeyPairGenerator.java @@ -46,20 +46,6 @@ import sun.security.jca.JCAUtil; */ public final class ECKeyPairGenerator extends KeyPairGeneratorSpi { - // flag indicating whether the native ECC implementation is present - private static boolean implementationPresent = true; - static { - try { - AccessController.doPrivileged(new PrivilegedAction() { - public Void run() { - System.loadLibrary("sunecc"); - return null; - } - }); - } catch (UnsatisfiedLinkError e) { - implementationPresent = false; - } - } private static final int KEY_SIZE_MIN = 112; // min bits (see ecc_impl.h) private static final int KEY_SIZE_MAX = 571; // max bits (see ecc_impl.h) private static final int KEY_SIZE_DEFAULT = 256; @@ -75,13 +61,8 @@ public final class ECKeyPairGenerator extends KeyPairGeneratorSpi { /** * Constructs a new ECKeyPairGenerator. - * - * @exception ProviderException if the native ECC library is unavailable. */ public ECKeyPairGenerator() { - if (!implementationPresent) { - throw new ProviderException("EC implementation is not available"); - } // initialize to default in case the app does not call initialize() initialize(KEY_SIZE_DEFAULT, null); } @@ -133,8 +114,8 @@ public final class ECKeyPairGenerator extends KeyPairGeneratorSpi { byte[] encodedParams = ECParameters.encodeParameters((ECParameterSpec)params); - // seed is twice the key size (in bytes) - byte[] seed = new byte[2 * ((keySize + 7) >> 3)]; + // seed is twice the key size (in bytes) plus 1 + byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2]; if (random == null) { random = JCAUtil.getSecureRandom(); } diff --git a/src/share/classes/sun/security/ec/SunEC.java b/src/share/classes/sun/security/ec/SunEC.java index 49223ca37..69afe5bf3 100644 --- a/src/share/classes/sun/security/ec/SunEC.java +++ b/src/share/classes/sun/security/ec/SunEC.java @@ -39,7 +39,10 @@ import sun.security.action.PutAllAction; * via JNI to a C++ wrapper class which in turn calls C functions. * The Java classes are packaged into the signed sunec.jar in the JRE * extensions directory and the C++ and C functions are packaged into - * libsunecc.so or sunecc.dll in the JRE native libraries directory. + * libsunec.so or sunec.dll in the JRE native libraries directory. + * If the native library is not present then this provider is registered + * with support for fewer ECC algorithms (KeyPairGenerator, Signature and + * KeyAgreement are omitted). * * @since 1.7 */ @@ -47,6 +50,22 @@ public final class SunEC extends Provider { private static final long serialVersionUID = -2279741672933606418L; + // flag indicating whether the full EC implementation is present + // (when native library is absent then fewer EC algorithms are available) + private static boolean useFullImplementation = true; + static { + try { + AccessController.doPrivileged(new PrivilegedAction() { + public Void run() { + System.loadLibrary("sunec"); // check for native library + return null; + } + }); + } catch (UnsatisfiedLinkError e) { + useFullImplementation = false; + } + } + public SunEC() { super("SunEC", 1.7d, "Sun Elliptic Curve provider (EC, ECDSA, ECDH)"); @@ -54,10 +73,10 @@ public final class SunEC extends Provider { // the provider. Otherwise, create a temporary map and use a // doPrivileged() call at the end to transfer the contents if (System.getSecurityManager() == null) { - SunECEntries.putEntries(this); + SunECEntries.putEntries(this, useFullImplementation); } else { Map map = new HashMap(); - SunECEntries.putEntries(map); + SunECEntries.putEntries(map, useFullImplementation); AccessController.doPrivileged(new PutAllAction(this, map)); } } diff --git a/src/share/classes/sun/security/ec/SunECEntries.java b/src/share/classes/sun/security/ec/SunECEntries.java index 759d3007e..58e99121a 100644 --- a/src/share/classes/sun/security/ec/SunECEntries.java +++ b/src/share/classes/sun/security/ec/SunECEntries.java @@ -38,7 +38,93 @@ final class SunECEntries { // empty } - static void putEntries(Map map) { + static void putEntries(Map map, + boolean useFullImplementation) { + + /* + * Key Factory engine + */ + map.put("KeyFactory.EC", "sun.security.ec.ECKeyFactory"); + map.put("Alg.Alias.KeyFactory.EllipticCurve", "EC"); + + map.put("KeyFactory.EC ImplementedIn", "Software"); + + /* + * Algorithm Parameter engine + */ + map.put("AlgorithmParameters.EC", "sun.security.ec.ECParameters"); + map.put("Alg.Alias.AlgorithmParameters.EllipticCurve", "EC"); + + map.put("AlgorithmParameters.EC KeySize", "256"); + + map.put("AlgorithmParameters.EC ImplementedIn", "Software"); + + map.put("AlgorithmParameters.EC SupportedCurves", + + // A list comprising lists of curve names and object identifiers. + // '[' ( ',' )+ ']' '|' + + // SEC 2 prime curves + "[secp112r1,1.3.132.0.6]|" + + "[secp112r2,1.3.132.0.7]|" + + "[secp128r1,1.3.132.0.28]|" + + "[secp128r2,1.3.132.0.29]|" + + "[secp160k1,1.3.132.0.9]|" + + "[secp160r1,1.3.132.0.8]|" + + "[secp160r2,1.3.132.0.30]|" + + "[secp192k1,1.3.132.0.31]|" + + "[secp192r1,NIST P-192,X9.62 prime192v1,1.2.840.10045.3.1.1]|" + + "[secp224k1,1.3.132.0.32]|" + + "[secp224r1,NIST P-224,1.3.132.0.33]|" + + "[secp256k1,1.3.132.0.10]|" + + "[secp256r1,NIST P-256,X9.62 prime256v1,1.2.840.10045.3.1.7]|" + + "[secp384r1,NIST P-384,1.3.132.0.34]|" + + "[secp521r1,NIST P-521,1.3.132.0.35]|" + + + // ANSI X9.62 prime curves + "[X9.62 prime192v2,1.2.840.10045.3.1.2]|" + + "[X9.62 prime192v3,1.2.840.10045.3.1.3]|" + + "[X9.62 prime239v1,1.2.840.10045.3.1.4]|" + + "[X9.62 prime239v2,1.2.840.10045.3.1.5]|" + + "[X9.62 prime239v3,1.2.840.10045.3.1.6]|" + + + // SEC 2 binary curves + "[sect113r1,1.3.132.0.4]|" + + "[sect113r2,1.3.132.0.5]|" + + "[sect131r1,1.3.132.0.22]|" + + "[sect131r2,1.3.132.0.23]|" + + "[sect163k1,NIST K-163,1.3.132.0.1]|" + + "[sect163r1,1.3.132.0.2]|" + + "[sect163r2,NIST B-163,1.3.132.0.15]|" + + "[sect193r1,1.3.132.0.24]|" + + "[sect193r2,1.3.132.0.25]|" + + "[sect233k1,NIST K-233,1.3.132.0.26]|" + + "[sect233r1,NIST B-233,1.3.132.0.27]|" + + "[sect239k1,1.3.132.0.3]|" + + "[sect283k1,NIST K-283,1.3.132.0.16]|" + + "[sect283r1,NIST B-283,1.3.132.0.17]|" + + "[sect409k1,NIST K-409,1.3.132.0.36]|" + + "[sect409r1,NIST B-409,1.3.132.0.37]|" + + "[sect571k1,NIST K-571,1.3.132.0.38]|" + + "[sect571r1,NIST B-571,1.3.132.0.39]|" + + + // ANSI X9.62 binary curves + "[X9.62 c2tnb191v1,1.2.840.10045.3.0.5]|" + + "[X9.62 c2tnb191v2,1.2.840.10045.3.0.6]|" + + "[X9.62 c2tnb191v3,1.2.840.10045.3.0.7]|" + + "[X9.62 c2tnb239v1,1.2.840.10045.3.0.11]|" + + "[X9.62 c2tnb239v2,1.2.840.10045.3.0.12]|" + + "[X9.62 c2tnb239v3,1.2.840.10045.3.0.13]|" + + "[X9.62 c2tnb359v1,1.2.840.10045.3.0.18]|" + + "[X9.62 c2tnb431r1,1.2.840.10045.3.0.20]"); + + /* + * Register the algorithms below only when the full ECC implementation + * is available + */ + if (!useFullImplementation) { + return; + } /* * Signature engines @@ -62,48 +148,31 @@ final class SunECEntries { map.put("Signature.SHA384withECDSA SupportedKeyClasses", ecKeyClasses); map.put("Signature.SHA512withECDSA SupportedKeyClasses", ecKeyClasses); + map.put("Signature.SHA1withECDSA KeySize", "256"); + + map.put("Signature.NONEwithECDSA ImplementedIn", "Software"); + map.put("Signature.SHA1withECDSA ImplementedIn", "Software"); + map.put("Signature.SHA256withECDSA ImplementedIn", "Software"); + map.put("Signature.SHA384withECDSA ImplementedIn", "Software"); + map.put("Signature.SHA512withECDSA ImplementedIn", "Software"); + /* * Key Pair Generator engine */ map.put("KeyPairGenerator.EC", "sun.security.ec.ECKeyPairGenerator"); map.put("Alg.Alias.KeyPairGenerator.EllipticCurve", "EC"); - /* - * Key Factory engine - */ - map.put("KeyFactory.EC", "sun.security.ec.ECKeyFactory"); - map.put("Alg.Alias.KeyFactory.EllipticCurve", "EC"); + map.put("KeyPairGenerator.EC KeySize", "256"); - /* - * Algorithm Parameter engine - */ - map.put("AlgorithmParameters.EC", "sun.security.ec.ECParameters"); - map.put("Alg.Alias.AlgorithmParameters.EllipticCurve", "EC"); + map.put("KeyPairGenerator.EC ImplementedIn", "Software"); /* * Key Agreement engine */ map.put("KeyAgreement.ECDH", "sun.security.ec.ECDHKeyAgreement"); - map.put("KeyAgreement.ECDH SupportedKeyClasses", ecKeyClasses); - /* - * Key sizes - */ - map.put("Signature.SHA1withECDSA KeySize", "256"); - map.put("KeyPairGenerator.EC KeySize", "256"); - map.put("AlgorithmParameterGenerator.ECDSA KeySize", "256"); + map.put("KeyAgreement.ECDH SupportedKeyClasses", ecKeyClasses); - /* - * Implementation type: software or hardware - */ - map.put("Signature.NONEwithECDSA ImplementedIn", "Software"); - map.put("Signature.SHA1withECDSA ImplementedIn", "Software"); - map.put("Signature.SHA256withECDSA ImplementedIn", "Software"); - map.put("Signature.SHA384withECDSA ImplementedIn", "Software"); - map.put("Signature.SHA512withECDSA ImplementedIn", "Software"); - map.put("KeyPairGenerator.EC ImplementedIn", "Software"); - map.put("KeyFactory.EC ImplementedIn", "Software"); map.put("KeyAgreement.ECDH ImplementedIn", "Software"); - map.put("AlgorithmParameters.EC ImplementedIn", "Software"); } } diff --git a/src/share/native/sun/security/ec/ECC_JNI.cpp b/src/share/native/sun/security/ec/ECC_JNI.cpp index fb227e82c..e847391a0 100644 --- a/src/share/native/sun/security/ec/ECC_JNI.cpp +++ b/src/share/native/sun/security/ec/ECC_JNI.cpp @@ -24,7 +24,7 @@ */ #include -#include "ecc_impl.h" +#include "impl/ecc_impl.h" #define ILLEGAL_STATE_EXCEPTION "java/lang/IllegalStateException" #define INVALID_ALGORITHM_PARAMETER_EXCEPTION \ diff --git a/src/share/native/sun/security/ec/ec.c b/src/share/native/sun/security/ec/impl/ec.c similarity index 100% rename from src/share/native/sun/security/ec/ec.c rename to src/share/native/sun/security/ec/impl/ec.c diff --git a/src/share/native/sun/security/ec/impl/ec.h b/src/share/native/sun/security/ec/impl/ec.h new file mode 100644 index 000000000..d47267091 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec.h @@ -0,0 +1,72 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Elliptic Curve Cryptography library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef __ec_h_ +#define __ec_h_ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#define EC_DEBUG 0 +#define EC_POINT_FORM_COMPRESSED_Y0 0x02 +#define EC_POINT_FORM_COMPRESSED_Y1 0x03 +#define EC_POINT_FORM_UNCOMPRESSED 0x04 +#define EC_POINT_FORM_HYBRID_Y0 0x06 +#define EC_POINT_FORM_HYBRID_Y1 0x07 + +#define ANSI_X962_CURVE_OID_TOTAL_LEN 10 +#define SECG_CURVE_OID_TOTAL_LEN 7 + +#endif /* __ec_h_ */ diff --git a/src/share/native/sun/security/ec/impl/ec2.h b/src/share/native/sun/security/ec/impl/ec2.h new file mode 100644 index 000000000..c1b2d7965 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2.h @@ -0,0 +1,146 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _EC2_H +#define _EC2_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl-priv.h" + +/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */ +mp_err ec_GF2m_pt_is_inf_aff(const mp_int *px, const mp_int *py); + +/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */ +mp_err ec_GF2m_pt_set_inf_aff(mp_int *px, mp_int *py); + +/* Computes R = P + Q where R is (rx, ry), P is (px, py) and Q is (qx, + * qy). Uses affine coordinates. */ +mp_err ec_GF2m_pt_add_aff(const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Computes R = P - Q. Uses affine coordinates. */ +mp_err ec_GF2m_pt_sub_aff(const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Computes R = 2P. Uses affine coordinates. */ +mp_err ec_GF2m_pt_dbl_aff(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Validates a point on a GF2m curve. */ +mp_err ec_GF2m_validate_point(const mp_int *px, const mp_int *py, const ECGroup *group); + +/* by default, this routine is unused and thus doesn't need to be compiled */ +#ifdef ECL_ENABLE_GF2M_PT_MUL_AFF +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the irreducible that + * determines the field GF2m. Uses affine coordinates. */ +mp_err ec_GF2m_pt_mul_aff(const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); +#endif + +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the irreducible that + * determines the field GF2m. Uses Montgomery projective coordinates. */ +mp_err ec_GF2m_pt_mul_mont(const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); + +#ifdef ECL_ENABLE_GF2M_PROJ +/* Converts a point P(px, py) from affine coordinates to projective + * coordinates R(rx, ry, rz). */ +mp_err ec_GF2m_pt_aff2proj(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, mp_int *rz, const ECGroup *group); + +/* Converts a point P(px, py, pz) from projective coordinates to affine + * coordinates R(rx, ry). */ +mp_err ec_GF2m_pt_proj2aff(const mp_int *px, const mp_int *py, + const mp_int *pz, mp_int *rx, mp_int *ry, + const ECGroup *group); + +/* Checks if point P(px, py, pz) is at infinity. Uses projective + * coordinates. */ +mp_err ec_GF2m_pt_is_inf_proj(const mp_int *px, const mp_int *py, + const mp_int *pz); + +/* Sets P(px, py, pz) to be the point at infinity. Uses projective + * coordinates. */ +mp_err ec_GF2m_pt_set_inf_proj(mp_int *px, mp_int *py, mp_int *pz); + +/* Computes R = P + Q where R is (rx, ry, rz), P is (px, py, pz) and Q is + * (qx, qy, qz). Uses projective coordinates. */ +mp_err ec_GF2m_pt_add_proj(const mp_int *px, const mp_int *py, + const mp_int *pz, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + mp_int *rz, const ECGroup *group); + +/* Computes R = 2P. Uses projective coordinates. */ +mp_err ec_GF2m_pt_dbl_proj(const mp_int *px, const mp_int *py, + const mp_int *pz, mp_int *rx, mp_int *ry, + mp_int *rz, const ECGroup *group); + +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the prime that + * determines the field GF2m. Uses projective coordinates. */ +mp_err ec_GF2m_pt_mul_proj(const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); +#endif + +#endif /* _EC2_H */ diff --git a/src/share/native/sun/security/ec/impl/ec2_163.c b/src/share/native/sun/security/ec/impl/ec2_163.c new file mode 100644 index 000000000..ecdb51210 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2_163.c @@ -0,0 +1,281 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ec2.h" +#include "mp_gf2m.h" +#include "mp_gf2m-priv.h" +#include "mpi.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Fast reduction for polynomials over a 163-bit curve. Assumes reduction + * polynomial with terms {163, 7, 6, 3, 0}. */ +mp_err +ec_GF2m_163_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, z; + + if (a != r) { + MP_CHECKOK(mp_copy(a, r)); + } +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(r) < 6) { + MP_CHECKOK(s_mp_pad(r, 6)); + } + u = MP_DIGITS(r); + MP_USED(r) = 6; + + /* u[5] only has 6 significant bits */ + z = u[5]; + u[2] ^= (z << 36) ^ (z << 35) ^ (z << 32) ^ (z << 29); + z = u[4]; + u[2] ^= (z >> 28) ^ (z >> 29) ^ (z >> 32) ^ (z >> 35); + u[1] ^= (z << 36) ^ (z << 35) ^ (z << 32) ^ (z << 29); + z = u[3]; + u[1] ^= (z >> 28) ^ (z >> 29) ^ (z >> 32) ^ (z >> 35); + u[0] ^= (z << 36) ^ (z << 35) ^ (z << 32) ^ (z << 29); + z = u[2] >> 35; /* z only has 29 significant bits */ + u[0] ^= (z << 7) ^ (z << 6) ^ (z << 3) ^ z; + /* clear bits above 163 */ + u[5] = u[4] = u[3] = 0; + u[2] ^= z << 35; +#else + if (MP_USED(r) < 11) { + MP_CHECKOK(s_mp_pad(r, 11)); + } + u = MP_DIGITS(r); + MP_USED(r) = 11; + + /* u[11] only has 6 significant bits */ + z = u[10]; + u[5] ^= (z << 4) ^ (z << 3) ^ z ^ (z >> 3); + u[4] ^= (z << 29); + z = u[9]; + u[5] ^= (z >> 28) ^ (z >> 29); + u[4] ^= (z << 4) ^ (z << 3) ^ z ^ (z >> 3); + u[3] ^= (z << 29); + z = u[8]; + u[4] ^= (z >> 28) ^ (z >> 29); + u[3] ^= (z << 4) ^ (z << 3) ^ z ^ (z >> 3); + u[2] ^= (z << 29); + z = u[7]; + u[3] ^= (z >> 28) ^ (z >> 29); + u[2] ^= (z << 4) ^ (z << 3) ^ z ^ (z >> 3); + u[1] ^= (z << 29); + z = u[6]; + u[2] ^= (z >> 28) ^ (z >> 29); + u[1] ^= (z << 4) ^ (z << 3) ^ z ^ (z >> 3); + u[0] ^= (z << 29); + z = u[5] >> 3; /* z only has 29 significant bits */ + u[1] ^= (z >> 25) ^ (z >> 26); + u[0] ^= (z << 7) ^ (z << 6) ^ (z << 3) ^ z; + /* clear bits above 163 */ + u[11] = u[10] = u[9] = u[8] = u[7] = u[6] = 0; + u[5] ^= z << 3; +#endif + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* Fast squaring for polynomials over a 163-bit curve. Assumes reduction + * polynomial with terms {163, 7, 6, 3, 0}. */ +mp_err +ec_GF2m_163_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, *v; + + v = MP_DIGITS(a); + +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(a) < 3) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 6) { + MP_CHECKOK(s_mp_pad(r, 6)); + } + MP_USED(r) = 6; +#else + if (MP_USED(a) < 6) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 12) { + MP_CHECKOK(s_mp_pad(r, 12)); + } + MP_USED(r) = 12; +#endif + u = MP_DIGITS(r); + +#ifdef ECL_THIRTY_TWO_BIT + u[11] = gf2m_SQR1(v[5]); + u[10] = gf2m_SQR0(v[5]); + u[9] = gf2m_SQR1(v[4]); + u[8] = gf2m_SQR0(v[4]); + u[7] = gf2m_SQR1(v[3]); + u[6] = gf2m_SQR0(v[3]); +#endif + u[5] = gf2m_SQR1(v[2]); + u[4] = gf2m_SQR0(v[2]); + u[3] = gf2m_SQR1(v[1]); + u[2] = gf2m_SQR0(v[1]); + u[1] = gf2m_SQR1(v[0]); + u[0] = gf2m_SQR0(v[0]); + return ec_GF2m_163_mod(r, r, meth); + + CLEANUP: + return res; +} + +/* Fast multiplication for polynomials over a 163-bit curve. Assumes + * reduction polynomial with terms {163, 7, 6, 3, 0}. */ +mp_err +ec_GF2m_163_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a2 = 0, a1 = 0, a0, b2 = 0, b1 = 0, b0; + +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a5 = 0, a4 = 0, a3 = 0, b5 = 0, b4 = 0, b3 = 0; + mp_digit rm[6]; +#endif + + if (a == b) { + return ec_GF2m_163_sqr(a, r, meth); + } else { + switch (MP_USED(a)) { +#ifdef ECL_THIRTY_TWO_BIT + case 6: + a5 = MP_DIGIT(a, 5); + case 5: + a4 = MP_DIGIT(a, 4); + case 4: + a3 = MP_DIGIT(a, 3); +#endif + case 3: + a2 = MP_DIGIT(a, 2); + case 2: + a1 = MP_DIGIT(a, 1); + default: + a0 = MP_DIGIT(a, 0); + } + switch (MP_USED(b)) { +#ifdef ECL_THIRTY_TWO_BIT + case 6: + b5 = MP_DIGIT(b, 5); + case 5: + b4 = MP_DIGIT(b, 4); + case 4: + b3 = MP_DIGIT(b, 3); +#endif + case 3: + b2 = MP_DIGIT(b, 2); + case 2: + b1 = MP_DIGIT(b, 1); + default: + b0 = MP_DIGIT(b, 0); + } +#ifdef ECL_SIXTY_FOUR_BIT + MP_CHECKOK(s_mp_pad(r, 6)); + s_bmul_3x3(MP_DIGITS(r), a2, a1, a0, b2, b1, b0); + MP_USED(r) = 6; + s_mp_clamp(r); +#else + MP_CHECKOK(s_mp_pad(r, 12)); + s_bmul_3x3(MP_DIGITS(r) + 6, a5, a4, a3, b5, b4, b3); + s_bmul_3x3(MP_DIGITS(r), a2, a1, a0, b2, b1, b0); + s_bmul_3x3(rm, a5 ^ a2, a4 ^ a1, a3 ^ a0, b5 ^ b2, b4 ^ b1, + b3 ^ b0); + rm[5] ^= MP_DIGIT(r, 5) ^ MP_DIGIT(r, 11); + rm[4] ^= MP_DIGIT(r, 4) ^ MP_DIGIT(r, 10); + rm[3] ^= MP_DIGIT(r, 3) ^ MP_DIGIT(r, 9); + rm[2] ^= MP_DIGIT(r, 2) ^ MP_DIGIT(r, 8); + rm[1] ^= MP_DIGIT(r, 1) ^ MP_DIGIT(r, 7); + rm[0] ^= MP_DIGIT(r, 0) ^ MP_DIGIT(r, 6); + MP_DIGIT(r, 8) ^= rm[5]; + MP_DIGIT(r, 7) ^= rm[4]; + MP_DIGIT(r, 6) ^= rm[3]; + MP_DIGIT(r, 5) ^= rm[2]; + MP_DIGIT(r, 4) ^= rm[1]; + MP_DIGIT(r, 3) ^= rm[0]; + MP_USED(r) = 12; + s_mp_clamp(r); +#endif + return ec_GF2m_163_mod(r, r, meth); + } + + CLEANUP: + return res; +} + +/* Wire in fast field arithmetic for 163-bit curves. */ +mp_err +ec_group_set_gf2m163(ECGroup *group, ECCurveName name) +{ + group->meth->field_mod = &ec_GF2m_163_mod; + group->meth->field_mul = &ec_GF2m_163_mul; + group->meth->field_sqr = &ec_GF2m_163_sqr; + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ec2_193.c b/src/share/native/sun/security/ec/impl/ec2_193.c new file mode 100644 index 000000000..f6187d356 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2_193.c @@ -0,0 +1,298 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ec2.h" +#include "mp_gf2m.h" +#include "mp_gf2m-priv.h" +#include "mpi.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Fast reduction for polynomials over a 193-bit curve. Assumes reduction + * polynomial with terms {193, 15, 0}. */ +mp_err +ec_GF2m_193_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, z; + + if (a != r) { + MP_CHECKOK(mp_copy(a, r)); + } +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(r) < 7) { + MP_CHECKOK(s_mp_pad(r, 7)); + } + u = MP_DIGITS(r); + MP_USED(r) = 7; + + /* u[6] only has 2 significant bits */ + z = u[6]; + u[3] ^= (z << 14) ^ (z >> 1); + u[2] ^= (z << 63); + z = u[5]; + u[3] ^= (z >> 50); + u[2] ^= (z << 14) ^ (z >> 1); + u[1] ^= (z << 63); + z = u[4]; + u[2] ^= (z >> 50); + u[1] ^= (z << 14) ^ (z >> 1); + u[0] ^= (z << 63); + z = u[3] >> 1; /* z only has 63 significant bits */ + u[1] ^= (z >> 49); + u[0] ^= (z << 15) ^ z; + /* clear bits above 193 */ + u[6] = u[5] = u[4] = 0; + u[3] ^= z << 1; +#else + if (MP_USED(r) < 13) { + MP_CHECKOK(s_mp_pad(r, 13)); + } + u = MP_DIGITS(r); + MP_USED(r) = 13; + + /* u[12] only has 2 significant bits */ + z = u[12]; + u[6] ^= (z << 14) ^ (z >> 1); + u[5] ^= (z << 31); + z = u[11]; + u[6] ^= (z >> 18); + u[5] ^= (z << 14) ^ (z >> 1); + u[4] ^= (z << 31); + z = u[10]; + u[5] ^= (z >> 18); + u[4] ^= (z << 14) ^ (z >> 1); + u[3] ^= (z << 31); + z = u[9]; + u[4] ^= (z >> 18); + u[3] ^= (z << 14) ^ (z >> 1); + u[2] ^= (z << 31); + z = u[8]; + u[3] ^= (z >> 18); + u[2] ^= (z << 14) ^ (z >> 1); + u[1] ^= (z << 31); + z = u[7]; + u[2] ^= (z >> 18); + u[1] ^= (z << 14) ^ (z >> 1); + u[0] ^= (z << 31); + z = u[6] >> 1; /* z only has 31 significant bits */ + u[1] ^= (z >> 17); + u[0] ^= (z << 15) ^ z; + /* clear bits above 193 */ + u[12] = u[11] = u[10] = u[9] = u[8] = u[7] = 0; + u[6] ^= z << 1; +#endif + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* Fast squaring for polynomials over a 193-bit curve. Assumes reduction + * polynomial with terms {193, 15, 0}. */ +mp_err +ec_GF2m_193_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, *v; + + v = MP_DIGITS(a); + +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(a) < 4) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 7) { + MP_CHECKOK(s_mp_pad(r, 7)); + } + MP_USED(r) = 7; +#else + if (MP_USED(a) < 7) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 13) { + MP_CHECKOK(s_mp_pad(r, 13)); + } + MP_USED(r) = 13; +#endif + u = MP_DIGITS(r); + +#ifdef ECL_THIRTY_TWO_BIT + u[12] = gf2m_SQR0(v[6]); + u[11] = gf2m_SQR1(v[5]); + u[10] = gf2m_SQR0(v[5]); + u[9] = gf2m_SQR1(v[4]); + u[8] = gf2m_SQR0(v[4]); + u[7] = gf2m_SQR1(v[3]); +#endif + u[6] = gf2m_SQR0(v[3]); + u[5] = gf2m_SQR1(v[2]); + u[4] = gf2m_SQR0(v[2]); + u[3] = gf2m_SQR1(v[1]); + u[2] = gf2m_SQR0(v[1]); + u[1] = gf2m_SQR1(v[0]); + u[0] = gf2m_SQR0(v[0]); + return ec_GF2m_193_mod(r, r, meth); + + CLEANUP: + return res; +} + +/* Fast multiplication for polynomials over a 193-bit curve. Assumes + * reduction polynomial with terms {193, 15, 0}. */ +mp_err +ec_GF2m_193_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a3 = 0, a2 = 0, a1 = 0, a0, b3 = 0, b2 = 0, b1 = 0, b0; + +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a6 = 0, a5 = 0, a4 = 0, b6 = 0, b5 = 0, b4 = 0; + mp_digit rm[8]; +#endif + + if (a == b) { + return ec_GF2m_193_sqr(a, r, meth); + } else { + switch (MP_USED(a)) { +#ifdef ECL_THIRTY_TWO_BIT + case 7: + a6 = MP_DIGIT(a, 6); + case 6: + a5 = MP_DIGIT(a, 5); + case 5: + a4 = MP_DIGIT(a, 4); +#endif + case 4: + a3 = MP_DIGIT(a, 3); + case 3: + a2 = MP_DIGIT(a, 2); + case 2: + a1 = MP_DIGIT(a, 1); + default: + a0 = MP_DIGIT(a, 0); + } + switch (MP_USED(b)) { +#ifdef ECL_THIRTY_TWO_BIT + case 7: + b6 = MP_DIGIT(b, 6); + case 6: + b5 = MP_DIGIT(b, 5); + case 5: + b4 = MP_DIGIT(b, 4); +#endif + case 4: + b3 = MP_DIGIT(b, 3); + case 3: + b2 = MP_DIGIT(b, 2); + case 2: + b1 = MP_DIGIT(b, 1); + default: + b0 = MP_DIGIT(b, 0); + } +#ifdef ECL_SIXTY_FOUR_BIT + MP_CHECKOK(s_mp_pad(r, 8)); + s_bmul_4x4(MP_DIGITS(r), a3, a2, a1, a0, b3, b2, b1, b0); + MP_USED(r) = 8; + s_mp_clamp(r); +#else + MP_CHECKOK(s_mp_pad(r, 14)); + s_bmul_3x3(MP_DIGITS(r) + 8, a6, a5, a4, b6, b5, b4); + s_bmul_4x4(MP_DIGITS(r), a3, a2, a1, a0, b3, b2, b1, b0); + s_bmul_4x4(rm, a3, a6 ^ a2, a5 ^ a1, a4 ^ a0, b3, b6 ^ b2, b5 ^ b1, + b4 ^ b0); + rm[7] ^= MP_DIGIT(r, 7); + rm[6] ^= MP_DIGIT(r, 6); + rm[5] ^= MP_DIGIT(r, 5) ^ MP_DIGIT(r, 13); + rm[4] ^= MP_DIGIT(r, 4) ^ MP_DIGIT(r, 12); + rm[3] ^= MP_DIGIT(r, 3) ^ MP_DIGIT(r, 11); + rm[2] ^= MP_DIGIT(r, 2) ^ MP_DIGIT(r, 10); + rm[1] ^= MP_DIGIT(r, 1) ^ MP_DIGIT(r, 9); + rm[0] ^= MP_DIGIT(r, 0) ^ MP_DIGIT(r, 8); + MP_DIGIT(r, 11) ^= rm[7]; + MP_DIGIT(r, 10) ^= rm[6]; + MP_DIGIT(r, 9) ^= rm[5]; + MP_DIGIT(r, 8) ^= rm[4]; + MP_DIGIT(r, 7) ^= rm[3]; + MP_DIGIT(r, 6) ^= rm[2]; + MP_DIGIT(r, 5) ^= rm[1]; + MP_DIGIT(r, 4) ^= rm[0]; + MP_USED(r) = 14; + s_mp_clamp(r); +#endif + return ec_GF2m_193_mod(r, r, meth); + } + + CLEANUP: + return res; +} + +/* Wire in fast field arithmetic for 193-bit curves. */ +mp_err +ec_group_set_gf2m193(ECGroup *group, ECCurveName name) +{ + group->meth->field_mod = &ec_GF2m_193_mod; + group->meth->field_mul = &ec_GF2m_193_mul; + group->meth->field_sqr = &ec_GF2m_193_sqr; + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ec2_233.c b/src/share/native/sun/security/ec/impl/ec2_233.c new file mode 100644 index 000000000..2b29c46ea --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2_233.c @@ -0,0 +1,321 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ec2.h" +#include "mp_gf2m.h" +#include "mp_gf2m-priv.h" +#include "mpi.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Fast reduction for polynomials over a 233-bit curve. Assumes reduction + * polynomial with terms {233, 74, 0}. */ +mp_err +ec_GF2m_233_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, z; + + if (a != r) { + MP_CHECKOK(mp_copy(a, r)); + } +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(r) < 8) { + MP_CHECKOK(s_mp_pad(r, 8)); + } + u = MP_DIGITS(r); + MP_USED(r) = 8; + + /* u[7] only has 18 significant bits */ + z = u[7]; + u[4] ^= (z << 33) ^ (z >> 41); + u[3] ^= (z << 23); + z = u[6]; + u[4] ^= (z >> 31); + u[3] ^= (z << 33) ^ (z >> 41); + u[2] ^= (z << 23); + z = u[5]; + u[3] ^= (z >> 31); + u[2] ^= (z << 33) ^ (z >> 41); + u[1] ^= (z << 23); + z = u[4]; + u[2] ^= (z >> 31); + u[1] ^= (z << 33) ^ (z >> 41); + u[0] ^= (z << 23); + z = u[3] >> 41; /* z only has 23 significant bits */ + u[1] ^= (z << 10); + u[0] ^= z; + /* clear bits above 233 */ + u[7] = u[6] = u[5] = u[4] = 0; + u[3] ^= z << 41; +#else + if (MP_USED(r) < 15) { + MP_CHECKOK(s_mp_pad(r, 15)); + } + u = MP_DIGITS(r); + MP_USED(r) = 15; + + /* u[14] only has 18 significant bits */ + z = u[14]; + u[9] ^= (z << 1); + u[7] ^= (z >> 9); + u[6] ^= (z << 23); + z = u[13]; + u[9] ^= (z >> 31); + u[8] ^= (z << 1); + u[6] ^= (z >> 9); + u[5] ^= (z << 23); + z = u[12]; + u[8] ^= (z >> 31); + u[7] ^= (z << 1); + u[5] ^= (z >> 9); + u[4] ^= (z << 23); + z = u[11]; + u[7] ^= (z >> 31); + u[6] ^= (z << 1); + u[4] ^= (z >> 9); + u[3] ^= (z << 23); + z = u[10]; + u[6] ^= (z >> 31); + u[5] ^= (z << 1); + u[3] ^= (z >> 9); + u[2] ^= (z << 23); + z = u[9]; + u[5] ^= (z >> 31); + u[4] ^= (z << 1); + u[2] ^= (z >> 9); + u[1] ^= (z << 23); + z = u[8]; + u[4] ^= (z >> 31); + u[3] ^= (z << 1); + u[1] ^= (z >> 9); + u[0] ^= (z << 23); + z = u[7] >> 9; /* z only has 23 significant bits */ + u[3] ^= (z >> 22); + u[2] ^= (z << 10); + u[0] ^= z; + /* clear bits above 233 */ + u[14] = u[13] = u[12] = u[11] = u[10] = u[9] = u[8] = 0; + u[7] ^= z << 9; +#endif + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* Fast squaring for polynomials over a 233-bit curve. Assumes reduction + * polynomial with terms {233, 74, 0}. */ +mp_err +ec_GF2m_233_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit *u, *v; + + v = MP_DIGITS(a); + +#ifdef ECL_SIXTY_FOUR_BIT + if (MP_USED(a) < 4) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 8) { + MP_CHECKOK(s_mp_pad(r, 8)); + } + MP_USED(r) = 8; +#else + if (MP_USED(a) < 8) { + return mp_bsqrmod(a, meth->irr_arr, r); + } + if (MP_USED(r) < 15) { + MP_CHECKOK(s_mp_pad(r, 15)); + } + MP_USED(r) = 15; +#endif + u = MP_DIGITS(r); + +#ifdef ECL_THIRTY_TWO_BIT + u[14] = gf2m_SQR0(v[7]); + u[13] = gf2m_SQR1(v[6]); + u[12] = gf2m_SQR0(v[6]); + u[11] = gf2m_SQR1(v[5]); + u[10] = gf2m_SQR0(v[5]); + u[9] = gf2m_SQR1(v[4]); + u[8] = gf2m_SQR0(v[4]); +#endif + u[7] = gf2m_SQR1(v[3]); + u[6] = gf2m_SQR0(v[3]); + u[5] = gf2m_SQR1(v[2]); + u[4] = gf2m_SQR0(v[2]); + u[3] = gf2m_SQR1(v[1]); + u[2] = gf2m_SQR0(v[1]); + u[1] = gf2m_SQR1(v[0]); + u[0] = gf2m_SQR0(v[0]); + return ec_GF2m_233_mod(r, r, meth); + + CLEANUP: + return res; +} + +/* Fast multiplication for polynomials over a 233-bit curve. Assumes + * reduction polynomial with terms {233, 74, 0}. */ +mp_err +ec_GF2m_233_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a3 = 0, a2 = 0, a1 = 0, a0, b3 = 0, b2 = 0, b1 = 0, b0; + +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a7 = 0, a6 = 0, a5 = 0, a4 = 0, b7 = 0, b6 = 0, b5 = 0, b4 = + 0; + mp_digit rm[8]; +#endif + + if (a == b) { + return ec_GF2m_233_sqr(a, r, meth); + } else { + switch (MP_USED(a)) { +#ifdef ECL_THIRTY_TWO_BIT + case 8: + a7 = MP_DIGIT(a, 7); + case 7: + a6 = MP_DIGIT(a, 6); + case 6: + a5 = MP_DIGIT(a, 5); + case 5: + a4 = MP_DIGIT(a, 4); +#endif + case 4: + a3 = MP_DIGIT(a, 3); + case 3: + a2 = MP_DIGIT(a, 2); + case 2: + a1 = MP_DIGIT(a, 1); + default: + a0 = MP_DIGIT(a, 0); + } + switch (MP_USED(b)) { +#ifdef ECL_THIRTY_TWO_BIT + case 8: + b7 = MP_DIGIT(b, 7); + case 7: + b6 = MP_DIGIT(b, 6); + case 6: + b5 = MP_DIGIT(b, 5); + case 5: + b4 = MP_DIGIT(b, 4); +#endif + case 4: + b3 = MP_DIGIT(b, 3); + case 3: + b2 = MP_DIGIT(b, 2); + case 2: + b1 = MP_DIGIT(b, 1); + default: + b0 = MP_DIGIT(b, 0); + } +#ifdef ECL_SIXTY_FOUR_BIT + MP_CHECKOK(s_mp_pad(r, 8)); + s_bmul_4x4(MP_DIGITS(r), a3, a2, a1, a0, b3, b2, b1, b0); + MP_USED(r) = 8; + s_mp_clamp(r); +#else + MP_CHECKOK(s_mp_pad(r, 16)); + s_bmul_4x4(MP_DIGITS(r) + 8, a7, a6, a5, a4, b7, b6, b5, b4); + s_bmul_4x4(MP_DIGITS(r), a3, a2, a1, a0, b3, b2, b1, b0); + s_bmul_4x4(rm, a7 ^ a3, a6 ^ a2, a5 ^ a1, a4 ^ a0, b7 ^ b3, + b6 ^ b2, b5 ^ b1, b4 ^ b0); + rm[7] ^= MP_DIGIT(r, 7) ^ MP_DIGIT(r, 15); + rm[6] ^= MP_DIGIT(r, 6) ^ MP_DIGIT(r, 14); + rm[5] ^= MP_DIGIT(r, 5) ^ MP_DIGIT(r, 13); + rm[4] ^= MP_DIGIT(r, 4) ^ MP_DIGIT(r, 12); + rm[3] ^= MP_DIGIT(r, 3) ^ MP_DIGIT(r, 11); + rm[2] ^= MP_DIGIT(r, 2) ^ MP_DIGIT(r, 10); + rm[1] ^= MP_DIGIT(r, 1) ^ MP_DIGIT(r, 9); + rm[0] ^= MP_DIGIT(r, 0) ^ MP_DIGIT(r, 8); + MP_DIGIT(r, 11) ^= rm[7]; + MP_DIGIT(r, 10) ^= rm[6]; + MP_DIGIT(r, 9) ^= rm[5]; + MP_DIGIT(r, 8) ^= rm[4]; + MP_DIGIT(r, 7) ^= rm[3]; + MP_DIGIT(r, 6) ^= rm[2]; + MP_DIGIT(r, 5) ^= rm[1]; + MP_DIGIT(r, 4) ^= rm[0]; + MP_USED(r) = 16; + s_mp_clamp(r); +#endif + return ec_GF2m_233_mod(r, r, meth); + } + + CLEANUP: + return res; +} + +/* Wire in fast field arithmetic for 233-bit curves. */ +mp_err +ec_group_set_gf2m233(ECGroup *group, ECCurveName name) +{ + group->meth->field_mod = &ec_GF2m_233_mod; + group->meth->field_mul = &ec_GF2m_233_mul; + group->meth->field_sqr = &ec_GF2m_233_sqr; + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ec2_aff.c b/src/share/native/sun/security/ec/impl/ec2_aff.c new file mode 100644 index 000000000..bb52cbc97 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2_aff.c @@ -0,0 +1,368 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ec2.h" +#include "mplogic.h" +#include "mp_gf2m.h" +#ifndef _KERNEL +#include +#endif + +/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */ +mp_err +ec_GF2m_pt_is_inf_aff(const mp_int *px, const mp_int *py) +{ + + if ((mp_cmp_z(px) == 0) && (mp_cmp_z(py) == 0)) { + return MP_YES; + } else { + return MP_NO; + } + +} + +/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */ +mp_err +ec_GF2m_pt_set_inf_aff(mp_int *px, mp_int *py) +{ + mp_zero(px); + mp_zero(py); + return MP_OKAY; +} + +/* Computes R = P + Q based on IEEE P1363 A.10.2. Elliptic curve points P, + * Q, and R can all be identical. Uses affine coordinates. */ +mp_err +ec_GF2m_pt_add_aff(const mp_int *px, const mp_int *py, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int lambda, tempx, tempy; + + MP_DIGITS(&lambda) = 0; + MP_DIGITS(&tempx) = 0; + MP_DIGITS(&tempy) = 0; + MP_CHECKOK(mp_init(&lambda, FLAG(px))); + MP_CHECKOK(mp_init(&tempx, FLAG(px))); + MP_CHECKOK(mp_init(&tempy, FLAG(px))); + /* if P = inf, then R = Q */ + if (ec_GF2m_pt_is_inf_aff(px, py) == 0) { + MP_CHECKOK(mp_copy(qx, rx)); + MP_CHECKOK(mp_copy(qy, ry)); + res = MP_OKAY; + goto CLEANUP; + } + /* if Q = inf, then R = P */ + if (ec_GF2m_pt_is_inf_aff(qx, qy) == 0) { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + res = MP_OKAY; + goto CLEANUP; + } + /* if px != qx, then lambda = (py+qy) / (px+qx), tempx = a + lambda^2 + * + lambda + px + qx */ + if (mp_cmp(px, qx) != 0) { + MP_CHECKOK(group->meth->field_add(py, qy, &tempy, group->meth)); + MP_CHECKOK(group->meth->field_add(px, qx, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_div(&tempy, &tempx, &lambda, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&lambda, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, &lambda, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, &group->curvea, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, px, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, qx, &tempx, group->meth)); + } else { + /* if py != qy or qx = 0, then R = inf */ + if (((mp_cmp(py, qy) != 0)) || (mp_cmp_z(qx) == 0)) { + mp_zero(rx); + mp_zero(ry); + res = MP_OKAY; + goto CLEANUP; + } + /* lambda = qx + qy / qx */ + MP_CHECKOK(group->meth->field_div(qy, qx, &lambda, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&lambda, qx, &lambda, group->meth)); + /* tempx = a + lambda^2 + lambda */ + MP_CHECKOK(group->meth->field_sqr(&lambda, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, &lambda, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, &group->curvea, &tempx, group->meth)); + } + /* ry = (qx + tempx) * lambda + tempx + qy */ + MP_CHECKOK(group->meth->field_add(qx, &tempx, &tempy, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(&tempy, &lambda, &tempy, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempy, &tempx, &tempy, group->meth)); + MP_CHECKOK(group->meth->field_add(&tempy, qy, ry, group->meth)); + /* rx = tempx */ + MP_CHECKOK(mp_copy(&tempx, rx)); + + CLEANUP: + mp_clear(&lambda); + mp_clear(&tempx); + mp_clear(&tempy); + return res; +} + +/* Computes R = P - Q. Elliptic curve points P, Q, and R can all be + * identical. Uses affine coordinates. */ +mp_err +ec_GF2m_pt_sub_aff(const mp_int *px, const mp_int *py, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int nqy; + + MP_DIGITS(&nqy) = 0; + MP_CHECKOK(mp_init(&nqy, FLAG(px))); + /* nqy = qx+qy */ + MP_CHECKOK(group->meth->field_add(qx, qy, &nqy, group->meth)); + MP_CHECKOK(group->point_add(px, py, qx, &nqy, rx, ry, group)); + CLEANUP: + mp_clear(&nqy); + return res; +} + +/* Computes R = 2P. Elliptic curve points P and R can be identical. Uses + * affine coordinates. */ +mp_err +ec_GF2m_pt_dbl_aff(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group) +{ + return group->point_add(px, py, px, py, rx, ry, group); +} + +/* by default, this routine is unused and thus doesn't need to be compiled */ +#ifdef ECL_ENABLE_GF2M_PT_MUL_AFF +/* Computes R = nP based on IEEE P1363 A.10.3. Elliptic curve points P and + * R can be identical. Uses affine coordinates. */ +mp_err +ec_GF2m_pt_mul_aff(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int k, k3, qx, qy, sx, sy; + int b1, b3, i, l; + + MP_DIGITS(&k) = 0; + MP_DIGITS(&k3) = 0; + MP_DIGITS(&qx) = 0; + MP_DIGITS(&qy) = 0; + MP_DIGITS(&sx) = 0; + MP_DIGITS(&sy) = 0; + MP_CHECKOK(mp_init(&k)); + MP_CHECKOK(mp_init(&k3)); + MP_CHECKOK(mp_init(&qx)); + MP_CHECKOK(mp_init(&qy)); + MP_CHECKOK(mp_init(&sx)); + MP_CHECKOK(mp_init(&sy)); + + /* if n = 0 then r = inf */ + if (mp_cmp_z(n) == 0) { + mp_zero(rx); + mp_zero(ry); + res = MP_OKAY; + goto CLEANUP; + } + /* Q = P, k = n */ + MP_CHECKOK(mp_copy(px, &qx)); + MP_CHECKOK(mp_copy(py, &qy)); + MP_CHECKOK(mp_copy(n, &k)); + /* if n < 0 then Q = -Q, k = -k */ + if (mp_cmp_z(n) < 0) { + MP_CHECKOK(group->meth->field_add(&qx, &qy, &qy, group->meth)); + MP_CHECKOK(mp_neg(&k, &k)); + } +#ifdef ECL_DEBUG /* basic double and add method */ + l = mpl_significant_bits(&k) - 1; + MP_CHECKOK(mp_copy(&qx, &sx)); + MP_CHECKOK(mp_copy(&qy, &sy)); + for (i = l - 1; i >= 0; i--) { + /* S = 2S */ + MP_CHECKOK(group->point_dbl(&sx, &sy, &sx, &sy, group)); + /* if k_i = 1, then S = S + Q */ + if (mpl_get_bit(&k, i) != 0) { + MP_CHECKOK(group-> + point_add(&sx, &sy, &qx, &qy, &sx, &sy, group)); + } + } +#else /* double and add/subtract method from + * standard */ + /* k3 = 3 * k */ + MP_CHECKOK(mp_set_int(&k3, 3)); + MP_CHECKOK(mp_mul(&k, &k3, &k3)); + /* S = Q */ + MP_CHECKOK(mp_copy(&qx, &sx)); + MP_CHECKOK(mp_copy(&qy, &sy)); + /* l = index of high order bit in binary representation of 3*k */ + l = mpl_significant_bits(&k3) - 1; + /* for i = l-1 downto 1 */ + for (i = l - 1; i >= 1; i--) { + /* S = 2S */ + MP_CHECKOK(group->point_dbl(&sx, &sy, &sx, &sy, group)); + b3 = MP_GET_BIT(&k3, i); + b1 = MP_GET_BIT(&k, i); + /* if k3_i = 1 and k_i = 0, then S = S + Q */ + if ((b3 == 1) && (b1 == 0)) { + MP_CHECKOK(group-> + point_add(&sx, &sy, &qx, &qy, &sx, &sy, group)); + /* if k3_i = 0 and k_i = 1, then S = S - Q */ + } else if ((b3 == 0) && (b1 == 1)) { + MP_CHECKOK(group-> + point_sub(&sx, &sy, &qx, &qy, &sx, &sy, group)); + } + } +#endif + /* output S */ + MP_CHECKOK(mp_copy(&sx, rx)); + MP_CHECKOK(mp_copy(&sy, ry)); + + CLEANUP: + mp_clear(&k); + mp_clear(&k3); + mp_clear(&qx); + mp_clear(&qy); + mp_clear(&sx); + mp_clear(&sy); + return res; +} +#endif + +/* Validates a point on a GF2m curve. */ +mp_err +ec_GF2m_validate_point(const mp_int *px, const mp_int *py, const ECGroup *group) +{ + mp_err res = MP_NO; + mp_int accl, accr, tmp, pxt, pyt; + + MP_DIGITS(&accl) = 0; + MP_DIGITS(&accr) = 0; + MP_DIGITS(&tmp) = 0; + MP_DIGITS(&pxt) = 0; + MP_DIGITS(&pyt) = 0; + MP_CHECKOK(mp_init(&accl, FLAG(px))); + MP_CHECKOK(mp_init(&accr, FLAG(px))); + MP_CHECKOK(mp_init(&tmp, FLAG(px))); + MP_CHECKOK(mp_init(&pxt, FLAG(px))); + MP_CHECKOK(mp_init(&pyt, FLAG(px))); + + /* 1: Verify that publicValue is not the point at infinity */ + if (ec_GF2m_pt_is_inf_aff(px, py) == MP_YES) { + res = MP_NO; + goto CLEANUP; + } + /* 2: Verify that the coordinates of publicValue are elements + * of the field. + */ + if ((MP_SIGN(px) == MP_NEG) || (mp_cmp(px, &group->meth->irr) >= 0) || + (MP_SIGN(py) == MP_NEG) || (mp_cmp(py, &group->meth->irr) >= 0)) { + res = MP_NO; + goto CLEANUP; + } + /* 3: Verify that publicValue is on the curve. */ + if (group->meth->field_enc) { + group->meth->field_enc(px, &pxt, group->meth); + group->meth->field_enc(py, &pyt, group->meth); + } else { + mp_copy(px, &pxt); + mp_copy(py, &pyt); + } + /* left-hand side: y^2 + x*y */ + MP_CHECKOK( group->meth->field_sqr(&pyt, &accl, group->meth) ); + MP_CHECKOK( group->meth->field_mul(&pxt, &pyt, &tmp, group->meth) ); + MP_CHECKOK( group->meth->field_add(&accl, &tmp, &accl, group->meth) ); + /* right-hand side: x^3 + a*x^2 + b */ + MP_CHECKOK( group->meth->field_sqr(&pxt, &tmp, group->meth) ); + MP_CHECKOK( group->meth->field_mul(&pxt, &tmp, &accr, group->meth) ); + MP_CHECKOK( group->meth->field_mul(&group->curvea, &tmp, &tmp, group->meth) ); + MP_CHECKOK( group->meth->field_add(&tmp, &accr, &accr, group->meth) ); + MP_CHECKOK( group->meth->field_add(&accr, &group->curveb, &accr, group->meth) ); + /* check LHS - RHS == 0 */ + MP_CHECKOK( group->meth->field_add(&accl, &accr, &accr, group->meth) ); + if (mp_cmp_z(&accr) != 0) { + res = MP_NO; + goto CLEANUP; + } + /* 4: Verify that the order of the curve times the publicValue + * is the point at infinity. + */ + MP_CHECKOK( ECPoint_mul(group, &group->order, px, py, &pxt, &pyt) ); + if (ec_GF2m_pt_is_inf_aff(&pxt, &pyt) != MP_YES) { + res = MP_NO; + goto CLEANUP; + } + + res = MP_YES; + +CLEANUP: + mp_clear(&accl); + mp_clear(&accr); + mp_clear(&tmp); + mp_clear(&pxt); + mp_clear(&pyt); + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ec2_mont.c b/src/share/native/sun/security/ec/impl/ec2_mont.c new file mode 100644 index 000000000..5cef20f53 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec2_mont.c @@ -0,0 +1,296 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for binary polynomial field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ec2.h" +#include "mplogic.h" +#include "mp_gf2m.h" +#ifndef _KERNEL +#include +#endif + +/* Compute the x-coordinate x/z for the point 2*(x/z) in Montgomery + * projective coordinates. Uses algorithm Mdouble in appendix of Lopez, J. + * and Dahab, R. "Fast multiplication on elliptic curves over GF(2^m) + * without precomputation". modified to not require precomputation of + * c=b^{2^{m-1}}. */ +static mp_err +gf2m_Mdouble(mp_int *x, mp_int *z, const ECGroup *group, int kmflag) +{ + mp_err res = MP_OKAY; + mp_int t1; + + MP_DIGITS(&t1) = 0; + MP_CHECKOK(mp_init(&t1, kmflag)); + + MP_CHECKOK(group->meth->field_sqr(x, x, group->meth)); + MP_CHECKOK(group->meth->field_sqr(z, &t1, group->meth)); + MP_CHECKOK(group->meth->field_mul(x, &t1, z, group->meth)); + MP_CHECKOK(group->meth->field_sqr(x, x, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&t1, &t1, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(&group->curveb, &t1, &t1, group->meth)); + MP_CHECKOK(group->meth->field_add(x, &t1, x, group->meth)); + + CLEANUP: + mp_clear(&t1); + return res; +} + +/* Compute the x-coordinate x1/z1 for the point (x1/z1)+(x2/x2) in + * Montgomery projective coordinates. Uses algorithm Madd in appendix of + * Lopex, J. and Dahab, R. "Fast multiplication on elliptic curves over + * GF(2^m) without precomputation". */ +static mp_err +gf2m_Madd(const mp_int *x, mp_int *x1, mp_int *z1, mp_int *x2, mp_int *z2, + const ECGroup *group, int kmflag) +{ + mp_err res = MP_OKAY; + mp_int t1, t2; + + MP_DIGITS(&t1) = 0; + MP_DIGITS(&t2) = 0; + MP_CHECKOK(mp_init(&t1, kmflag)); + MP_CHECKOK(mp_init(&t2, kmflag)); + + MP_CHECKOK(mp_copy(x, &t1)); + MP_CHECKOK(group->meth->field_mul(x1, z2, x1, group->meth)); + MP_CHECKOK(group->meth->field_mul(z1, x2, z1, group->meth)); + MP_CHECKOK(group->meth->field_mul(x1, z1, &t2, group->meth)); + MP_CHECKOK(group->meth->field_add(z1, x1, z1, group->meth)); + MP_CHECKOK(group->meth->field_sqr(z1, z1, group->meth)); + MP_CHECKOK(group->meth->field_mul(z1, &t1, x1, group->meth)); + MP_CHECKOK(group->meth->field_add(x1, &t2, x1, group->meth)); + + CLEANUP: + mp_clear(&t1); + mp_clear(&t2); + return res; +} + +/* Compute the x, y affine coordinates from the point (x1, z1) (x2, z2) + * using Montgomery point multiplication algorithm Mxy() in appendix of + * Lopex, J. and Dahab, R. "Fast multiplication on elliptic curves over + * GF(2^m) without precomputation". Returns: 0 on error 1 if return value + * should be the point at infinity 2 otherwise */ +static int +gf2m_Mxy(const mp_int *x, const mp_int *y, mp_int *x1, mp_int *z1, + mp_int *x2, mp_int *z2, const ECGroup *group) +{ + mp_err res = MP_OKAY; + int ret = 0; + mp_int t3, t4, t5; + + MP_DIGITS(&t3) = 0; + MP_DIGITS(&t4) = 0; + MP_DIGITS(&t5) = 0; + MP_CHECKOK(mp_init(&t3, FLAG(x2))); + MP_CHECKOK(mp_init(&t4, FLAG(x2))); + MP_CHECKOK(mp_init(&t5, FLAG(x2))); + + if (mp_cmp_z(z1) == 0) { + mp_zero(x2); + mp_zero(z2); + ret = 1; + goto CLEANUP; + } + + if (mp_cmp_z(z2) == 0) { + MP_CHECKOK(mp_copy(x, x2)); + MP_CHECKOK(group->meth->field_add(x, y, z2, group->meth)); + ret = 2; + goto CLEANUP; + } + + MP_CHECKOK(mp_set_int(&t5, 1)); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(&t5, &t5, group->meth)); + } + + MP_CHECKOK(group->meth->field_mul(z1, z2, &t3, group->meth)); + + MP_CHECKOK(group->meth->field_mul(z1, x, z1, group->meth)); + MP_CHECKOK(group->meth->field_add(z1, x1, z1, group->meth)); + MP_CHECKOK(group->meth->field_mul(z2, x, z2, group->meth)); + MP_CHECKOK(group->meth->field_mul(z2, x1, x1, group->meth)); + MP_CHECKOK(group->meth->field_add(z2, x2, z2, group->meth)); + + MP_CHECKOK(group->meth->field_mul(z2, z1, z2, group->meth)); + MP_CHECKOK(group->meth->field_sqr(x, &t4, group->meth)); + MP_CHECKOK(group->meth->field_add(&t4, y, &t4, group->meth)); + MP_CHECKOK(group->meth->field_mul(&t4, &t3, &t4, group->meth)); + MP_CHECKOK(group->meth->field_add(&t4, z2, &t4, group->meth)); + + MP_CHECKOK(group->meth->field_mul(&t3, x, &t3, group->meth)); + MP_CHECKOK(group->meth->field_div(&t5, &t3, &t3, group->meth)); + MP_CHECKOK(group->meth->field_mul(&t3, &t4, &t4, group->meth)); + MP_CHECKOK(group->meth->field_mul(x1, &t3, x2, group->meth)); + MP_CHECKOK(group->meth->field_add(x2, x, z2, group->meth)); + + MP_CHECKOK(group->meth->field_mul(z2, &t4, z2, group->meth)); + MP_CHECKOK(group->meth->field_add(z2, y, z2, group->meth)); + + ret = 2; + + CLEANUP: + mp_clear(&t3); + mp_clear(&t4); + mp_clear(&t5); + if (res == MP_OKAY) { + return ret; + } else { + return 0; + } +} + +/* Computes R = nP based on algorithm 2P of Lopex, J. and Dahab, R. "Fast + * multiplication on elliptic curves over GF(2^m) without + * precomputation". Elliptic curve points P and R can be identical. Uses + * Montgomery projective coordinates. */ +mp_err +ec_GF2m_pt_mul_mont(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int x1, x2, z1, z2; + int i, j; + mp_digit top_bit, mask; + + MP_DIGITS(&x1) = 0; + MP_DIGITS(&x2) = 0; + MP_DIGITS(&z1) = 0; + MP_DIGITS(&z2) = 0; + MP_CHECKOK(mp_init(&x1, FLAG(n))); + MP_CHECKOK(mp_init(&x2, FLAG(n))); + MP_CHECKOK(mp_init(&z1, FLAG(n))); + MP_CHECKOK(mp_init(&z2, FLAG(n))); + + /* if result should be point at infinity */ + if ((mp_cmp_z(n) == 0) || (ec_GF2m_pt_is_inf_aff(px, py) == MP_YES)) { + MP_CHECKOK(ec_GF2m_pt_set_inf_aff(rx, ry)); + goto CLEANUP; + } + + MP_CHECKOK(mp_copy(px, &x1)); /* x1 = px */ + MP_CHECKOK(mp_set_int(&z1, 1)); /* z1 = 1 */ + MP_CHECKOK(group->meth->field_sqr(&x1, &z2, group->meth)); /* z2 = + * x1^2 = + * px^2 */ + MP_CHECKOK(group->meth->field_sqr(&z2, &x2, group->meth)); + MP_CHECKOK(group->meth->field_add(&x2, &group->curveb, &x2, group->meth)); /* x2 + * = + * px^4 + * + + * b + */ + + /* find top-most bit and go one past it */ + i = MP_USED(n) - 1; + j = MP_DIGIT_BIT - 1; + top_bit = 1; + top_bit <<= MP_DIGIT_BIT - 1; + mask = top_bit; + while (!(MP_DIGITS(n)[i] & mask)) { + mask >>= 1; + j--; + } + mask >>= 1; + j--; + + /* if top most bit was at word break, go to next word */ + if (!mask) { + i--; + j = MP_DIGIT_BIT - 1; + mask = top_bit; + } + + for (; i >= 0; i--) { + for (; j >= 0; j--) { + if (MP_DIGITS(n)[i] & mask) { + MP_CHECKOK(gf2m_Madd(px, &x1, &z1, &x2, &z2, group, FLAG(n))); + MP_CHECKOK(gf2m_Mdouble(&x2, &z2, group, FLAG(n))); + } else { + MP_CHECKOK(gf2m_Madd(px, &x2, &z2, &x1, &z1, group, FLAG(n))); + MP_CHECKOK(gf2m_Mdouble(&x1, &z1, group, FLAG(n))); + } + mask >>= 1; + } + j = MP_DIGIT_BIT - 1; + mask = top_bit; + } + + /* convert out of "projective" coordinates */ + i = gf2m_Mxy(px, py, &x1, &z1, &x2, &z2, group); + if (i == 0) { + res = MP_BADARG; + goto CLEANUP; + } else if (i == 1) { + MP_CHECKOK(ec_GF2m_pt_set_inf_aff(rx, ry)); + } else { + MP_CHECKOK(mp_copy(&x2, rx)); + MP_CHECKOK(mp_copy(&z2, ry)); + } + + CLEANUP: + mp_clear(&x1); + mp_clear(&x2); + mp_clear(&z1); + mp_clear(&z2); + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ec_naf.c b/src/share/native/sun/security/ec/impl/ec_naf.c new file mode 100644 index 000000000..1d110904d --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ec_naf.c @@ -0,0 +1,123 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Stephen Fung , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl-priv.h" + +/* Returns 2^e as an integer. This is meant to be used for small powers of + * two. */ +int +ec_twoTo(int e) +{ + int a = 1; + int i; + + for (i = 0; i < e; i++) { + a *= 2; + } + return a; +} + +/* Computes the windowed non-adjacent-form (NAF) of a scalar. Out should + * be an array of signed char's to output to, bitsize should be the number + * of bits of out, in is the original scalar, and w is the window size. + * NAF is discussed in the paper: D. Hankerson, J. Hernandez and A. + * Menezes, "Software implementation of elliptic curve cryptography over + * binary fields", Proc. CHES 2000. */ +mp_err +ec_compute_wNAF(signed char *out, int bitsize, const mp_int *in, int w) +{ + mp_int k; + mp_err res = MP_OKAY; + int i, twowm1, mask; + + twowm1 = ec_twoTo(w - 1); + mask = 2 * twowm1 - 1; + + MP_DIGITS(&k) = 0; + MP_CHECKOK(mp_init_copy(&k, in)); + + i = 0; + /* Compute wNAF form */ + while (mp_cmp_z(&k) > 0) { + if (mp_isodd(&k)) { + out[i] = MP_DIGIT(&k, 0) & mask; + if (out[i] >= twowm1) + out[i] -= 2 * twowm1; + + /* Subtract off out[i]. Note mp_sub_d only works with + * unsigned digits */ + if (out[i] >= 0) { + mp_sub_d(&k, out[i], &k); + } else { + mp_add_d(&k, -(out[i]), &k); + } + } else { + out[i] = 0; + } + mp_div_2(&k, &k); + i++; + } + /* Zero out the remaining elements of the out array. */ + for (; i < bitsize + 1; i++) { + out[i] = 0; + } + CLEANUP: + mp_clear(&k); + return res; + +} diff --git a/src/share/native/sun/security/ec/impl/ecc_impl.h b/src/share/native/sun/security/ec/impl/ecc_impl.h new file mode 100644 index 000000000..95fc93b3e --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecc_impl.h @@ -0,0 +1,275 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta and + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECC_IMPL_H +#define _ECC_IMPL_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include "ecl-exp.h" + +/* + * Multi-platform definitions + */ +#ifdef __linux__ +#define B_FALSE FALSE +#define B_TRUE TRUE +typedef unsigned char uint8_t; +typedef unsigned long ulong_t; +typedef enum { B_FALSE, B_TRUE } boolean_t; +#endif /* __linux__ */ + +#ifdef _WIN32 +typedef unsigned char uint8_t; +typedef unsigned long ulong_t; +typedef enum boolean { B_FALSE, B_TRUE } boolean_t; +#endif /* _WIN32 */ + +#ifndef _KERNEL +#include +#endif /* _KERNEL */ + +#define EC_MAX_DIGEST_LEN 1024 /* max digest that can be signed */ +#define EC_MAX_POINT_LEN 145 /* max len of DER encoded Q */ +#define EC_MAX_VALUE_LEN 72 /* max len of ANSI X9.62 private value d */ +#define EC_MAX_SIG_LEN 144 /* max signature len for supported curves */ +#define EC_MIN_KEY_LEN 112 /* min key length in bits */ +#define EC_MAX_KEY_LEN 571 /* max key length in bits */ +#define EC_MAX_OID_LEN 10 /* max length of OID buffer */ + +/* + * Various structures and definitions from NSS are here. + */ + +#ifdef _KERNEL +#define PORT_ArenaAlloc(a, n, f) kmem_alloc((n), (f)) +#define PORT_ArenaZAlloc(a, n, f) kmem_zalloc((n), (f)) +#define PORT_ArenaGrow(a, b, c, d) NULL +#define PORT_ZAlloc(n, f) kmem_zalloc((n), (f)) +#define PORT_Alloc(n, f) kmem_alloc((n), (f)) +#else +#define PORT_ArenaAlloc(a, n, f) malloc((n)) +#define PORT_ArenaZAlloc(a, n, f) calloc(1, (n)) +#define PORT_ArenaGrow(a, b, c, d) NULL +#define PORT_ZAlloc(n, f) calloc(1, (n)) +#define PORT_Alloc(n, f) malloc((n)) +#endif + +#define PORT_NewArena(b) (char *)12345 +#define PORT_ArenaMark(a) NULL +#define PORT_ArenaUnmark(a, b) +#define PORT_ArenaRelease(a, m) +#define PORT_FreeArena(a, b) +#define PORT_Strlen(s) strlen((s)) +#define PORT_SetError(e) + +#define PRBool boolean_t +#define PR_TRUE B_TRUE +#define PR_FALSE B_FALSE + +#ifdef _KERNEL +#define PORT_Assert ASSERT +#define PORT_Memcpy(t, f, l) bcopy((f), (t), (l)) +#else +#define PORT_Assert assert +#define PORT_Memcpy(t, f, l) memcpy((t), (f), (l)) +#endif + +#define CHECK_OK(func) if (func == NULL) goto cleanup +#define CHECK_SEC_OK(func) if (SECSuccess != (rv = func)) goto cleanup + +typedef enum { + siBuffer = 0, + siClearDataBuffer = 1, + siCipherDataBuffer = 2, + siDERCertBuffer = 3, + siEncodedCertBuffer = 4, + siDERNameBuffer = 5, + siEncodedNameBuffer = 6, + siAsciiNameString = 7, + siAsciiString = 8, + siDEROID = 9, + siUnsignedInteger = 10, + siUTCTime = 11, + siGeneralizedTime = 12 +} SECItemType; + +typedef struct SECItemStr SECItem; + +struct SECItemStr { + SECItemType type; + unsigned char *data; + unsigned int len; +}; + +typedef SECItem SECKEYECParams; + +typedef enum { ec_params_explicit, + ec_params_named +} ECParamsType; + +typedef enum { ec_field_GFp = 1, + ec_field_GF2m +} ECFieldType; + +struct ECFieldIDStr { + int size; /* field size in bits */ + ECFieldType type; + union { + SECItem prime; /* prime p for (GFp) */ + SECItem poly; /* irreducible binary polynomial for (GF2m) */ + } u; + int k1; /* first coefficient of pentanomial or + * the only coefficient of trinomial + */ + int k2; /* two remaining coefficients of pentanomial */ + int k3; +}; +typedef struct ECFieldIDStr ECFieldID; + +struct ECCurveStr { + SECItem a; /* contains octet stream encoding of + * field element (X9.62 section 4.3.3) + */ + SECItem b; + SECItem seed; +}; +typedef struct ECCurveStr ECCurve; + +typedef void PRArenaPool; + +struct ECParamsStr { + PRArenaPool * arena; + ECParamsType type; + ECFieldID fieldID; + ECCurve curve; + SECItem base; + SECItem order; + int cofactor; + SECItem DEREncoding; + ECCurveName name; + SECItem curveOID; +}; +typedef struct ECParamsStr ECParams; + +struct ECPublicKeyStr { + ECParams ecParams; + SECItem publicValue; /* elliptic curve point encoded as + * octet stream. + */ +}; +typedef struct ECPublicKeyStr ECPublicKey; + +struct ECPrivateKeyStr { + ECParams ecParams; + SECItem publicValue; /* encoded ec point */ + SECItem privateValue; /* private big integer */ + SECItem version; /* As per SEC 1, Appendix C, Section C.4 */ +}; +typedef struct ECPrivateKeyStr ECPrivateKey; + +typedef enum _SECStatus { + SECBufferTooSmall = -3, + SECWouldBlock = -2, + SECFailure = -1, + SECSuccess = 0 +} SECStatus; + +#ifdef _KERNEL +#define RNG_GenerateGlobalRandomBytes(p,l) ecc_knzero_random_generator((p), (l)) +#else +/* + This function is no longer required because the random bytes are now + supplied by the caller. Force a failure. +*/ +#define RNG_GenerateGlobalRandomBytes(p,l) SECFailure +#endif +#define CHECK_MPI_OK(func) if (MP_OKAY > (err = func)) goto cleanup +#define MP_TO_SEC_ERROR(err) + +#define SECITEM_TO_MPINT(it, mp) \ + CHECK_MPI_OK(mp_read_unsigned_octets((mp), (it).data, (it).len)) + +extern int ecc_knzero_random_generator(uint8_t *, size_t); +extern ulong_t soft_nzero_random_generator(uint8_t *, ulong_t); + +extern SECStatus EC_DecodeParams(const SECItem *, ECParams **, int); +extern SECItem * SECITEM_AllocItem(PRArenaPool *, SECItem *, unsigned int, int); +extern SECStatus SECITEM_CopyItem(PRArenaPool *, SECItem *, const SECItem *, + int); +extern void SECITEM_FreeItem(SECItem *, boolean_t); +/* This function has been modified to accept an array of random bytes */ +extern SECStatus EC_NewKey(ECParams *ecParams, ECPrivateKey **privKey, + const unsigned char* random, int randomlen, int); +/* This function has been modified to accept an array of random bytes */ +extern SECStatus ECDSA_SignDigest(ECPrivateKey *, SECItem *, const SECItem *, + const unsigned char* random, int randomlen, int); +extern SECStatus ECDSA_VerifyDigest(ECPublicKey *, const SECItem *, + const SECItem *, int); +extern SECStatus ECDH_Derive(SECItem *, ECParams *, SECItem *, boolean_t, + SECItem *, int); + +#ifdef __cplusplus +} +#endif + +#endif /* _ECC_IMPL_H */ diff --git a/src/share/native/sun/security/ec/impl/ecdecode.c b/src/share/native/sun/security/ec/impl/ecdecode.c new file mode 100644 index 000000000..d610f3b1b --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecdecode.c @@ -0,0 +1,632 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Elliptic Curve Cryptography library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta and + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include + +#ifndef _WIN32 +#ifndef __linux__ +#include +#endif /* __linux__ */ +#include +#endif /* _WIN32 */ + +#ifdef _KERNEL +#include +#else +#include +#endif +#include "ec.h" +#include "ecl-curve.h" +#include "ecc_impl.h" + +#define MAX_ECKEY_LEN 72 +#define SEC_ASN1_OBJECT_ID 0x06 + +/* + * Initializes a SECItem from a hexadecimal string + * + * Warning: This function ignores leading 00's, so any leading 00's + * in the hexadecimal string must be optional. + */ +static SECItem * +hexString2SECItem(PRArenaPool *arena, SECItem *item, const char *str, + int kmflag) +{ + int i = 0; + int byteval = 0; + int tmp = strlen(str); + + if ((tmp % 2) != 0) return NULL; + + /* skip leading 00's unless the hex string is "00" */ + while ((tmp > 2) && (str[0] == '0') && (str[1] == '0')) { + str += 2; + tmp -= 2; + } + + item->data = (unsigned char *) PORT_ArenaAlloc(arena, tmp/2, kmflag); + if (item->data == NULL) return NULL; + item->len = tmp/2; + + while (str[i]) { + if ((str[i] >= '0') && (str[i] <= '9')) + tmp = str[i] - '0'; + else if ((str[i] >= 'a') && (str[i] <= 'f')) + tmp = str[i] - 'a' + 10; + else if ((str[i] >= 'A') && (str[i] <= 'F')) + tmp = str[i] - 'A' + 10; + else + return NULL; + + byteval = byteval * 16 + tmp; + if ((i % 2) != 0) { + item->data[i/2] = byteval; + byteval = 0; + } + i++; + } + + return item; +} + +static SECStatus +gf_populate_params(ECCurveName name, ECFieldType field_type, ECParams *params, + int kmflag) +{ + SECStatus rv = SECFailure; + const ECCurveParams *curveParams; + /* 2 ['0'+'4'] + MAX_ECKEY_LEN * 2 [x,y] * 2 [hex string] + 1 ['\0'] */ + char genenc[3 + 2 * 2 * MAX_ECKEY_LEN]; + + if ((name < ECCurve_noName) || (name > ECCurve_pastLastCurve)) goto cleanup; + params->name = name; + curveParams = ecCurve_map[params->name]; + CHECK_OK(curveParams); + params->fieldID.size = curveParams->size; + params->fieldID.type = field_type; + if (field_type == ec_field_GFp) { + CHECK_OK(hexString2SECItem(NULL, ¶ms->fieldID.u.prime, + curveParams->irr, kmflag)); + } else { + CHECK_OK(hexString2SECItem(NULL, ¶ms->fieldID.u.poly, + curveParams->irr, kmflag)); + } + CHECK_OK(hexString2SECItem(NULL, ¶ms->curve.a, + curveParams->curvea, kmflag)); + CHECK_OK(hexString2SECItem(NULL, ¶ms->curve.b, + curveParams->curveb, kmflag)); + genenc[0] = '0'; + genenc[1] = '4'; + genenc[2] = '\0'; + strcat(genenc, curveParams->genx); + strcat(genenc, curveParams->geny); + CHECK_OK(hexString2SECItem(NULL, ¶ms->base, genenc, kmflag)); + CHECK_OK(hexString2SECItem(NULL, ¶ms->order, + curveParams->order, kmflag)); + params->cofactor = curveParams->cofactor; + + rv = SECSuccess; + +cleanup: + return rv; +} + +ECCurveName SECOID_FindOIDTag(const SECItem *); + +SECStatus +EC_FillParams(PRArenaPool *arena, const SECItem *encodedParams, + ECParams *params, int kmflag) +{ + SECStatus rv = SECFailure; + ECCurveName tag; + SECItem oid = { siBuffer, NULL, 0}; + +#if EC_DEBUG + int i; + + printf("Encoded params in EC_DecodeParams: "); + for (i = 0; i < encodedParams->len; i++) { + printf("%02x:", encodedParams->data[i]); + } + printf("\n"); +#endif + + if ((encodedParams->len != ANSI_X962_CURVE_OID_TOTAL_LEN) && + (encodedParams->len != SECG_CURVE_OID_TOTAL_LEN)) { + PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE); + return SECFailure; + }; + + oid.len = encodedParams->len - 2; + oid.data = encodedParams->data + 2; + if ((encodedParams->data[0] != SEC_ASN1_OBJECT_ID) || + ((tag = SECOID_FindOIDTag(&oid)) == ECCurve_noName)) { + PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE); + return SECFailure; + } + + params->arena = arena; + params->cofactor = 0; + params->type = ec_params_named; + params->name = ECCurve_noName; + + /* For named curves, fill out curveOID */ + params->curveOID.len = oid.len; + params->curveOID.data = (unsigned char *) PORT_ArenaAlloc(NULL, oid.len, + kmflag); + if (params->curveOID.data == NULL) goto cleanup; + memcpy(params->curveOID.data, oid.data, oid.len); + +#if EC_DEBUG +#ifndef SECOID_FindOIDTagDescription + printf("Curve: %s\n", ecCurve_map[tag]->text); +#else + printf("Curve: %s\n", SECOID_FindOIDTagDescription(tag)); +#endif +#endif + + switch (tag) { + + /* Binary curves */ + + case ECCurve_X9_62_CHAR2_PNB163V1: + /* Populate params for c2pnb163v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB163V2: + /* Populate params for c2pnb163v2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB163V3: + /* Populate params for c2pnb163v3 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V3, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB176V1: + /* Populate params for c2pnb176v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB176V1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB191V1: + /* Populate params for c2tnb191v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB191V2: + /* Populate params for c2tnb191v2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB191V3: + /* Populate params for c2tnb191v3 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V3, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB208W1: + /* Populate params for c2pnb208w1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB208W1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB239V1: + /* Populate params for c2tnb239v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB239V2: + /* Populate params for c2tnb239v2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB239V3: + /* Populate params for c2tnb239v3 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V3, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB272W1: + /* Populate params for c2pnb272w1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB272W1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB304W1: + /* Populate params for c2pnb304w1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB304W1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB359V1: + /* Populate params for c2tnb359v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB359V1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_PNB368W1: + /* Populate params for c2pnb368w1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB368W1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_X9_62_CHAR2_TNB431R1: + /* Populate params for c2tnb431r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB431R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_113R1: + /* Populate params for sect113r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_113R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_113R2: + /* Populate params for sect113r2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_113R2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_131R1: + /* Populate params for sect131r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_131R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_131R2: + /* Populate params for sect131r2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_131R2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_163K1: + /* Populate params for sect163k1 + * (the NIST K-163 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_163R1: + /* Populate params for sect163r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_163R2: + /* Populate params for sect163r2 + * (the NIST B-163 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163R2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_193R1: + /* Populate params for sect193r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_193R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_193R2: + /* Populate params for sect193r2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_193R2, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_233K1: + /* Populate params for sect233k1 + * (the NIST K-233 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_233K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_233R1: + /* Populate params for sect233r1 + * (the NIST B-233 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_233R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_239K1: + /* Populate params for sect239k1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_239K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_283K1: + /* Populate params for sect283k1 + * (the NIST K-283 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_283K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_283R1: + /* Populate params for sect283r1 + * (the NIST B-283 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_283R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_409K1: + /* Populate params for sect409k1 + * (the NIST K-409 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_409K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_409R1: + /* Populate params for sect409r1 + * (the NIST B-409 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_409R1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_571K1: + /* Populate params for sect571k1 + * (the NIST K-571 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_571K1, ec_field_GF2m, + params, kmflag) ); + break; + + case ECCurve_SECG_CHAR2_571R1: + /* Populate params for sect571r1 + * (the NIST B-571 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_571R1, ec_field_GF2m, + params, kmflag) ); + break; + + /* Prime curves */ + + case ECCurve_X9_62_PRIME_192V1: + /* Populate params for prime192v1 aka secp192r1 + * (the NIST P-192 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_192V2: + /* Populate params for prime192v2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V2, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_192V3: + /* Populate params for prime192v3 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V3, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_239V1: + /* Populate params for prime239v1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_239V2: + /* Populate params for prime239v2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V2, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_239V3: + /* Populate params for prime239v3 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V3, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_X9_62_PRIME_256V1: + /* Populate params for prime256v1 aka secp256r1 + * (the NIST P-256 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_256V1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_112R1: + /* Populate params for secp112r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_112R1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_112R2: + /* Populate params for secp112r2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_112R2, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_128R1: + /* Populate params for secp128r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_128R1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_128R2: + /* Populate params for secp128r2 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_128R2, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_160K1: + /* Populate params for secp160k1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160K1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_160R1: + /* Populate params for secp160r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160R1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_160R2: + /* Populate params for secp160r1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160R2, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_192K1: + /* Populate params for secp192k1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_192K1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_224K1: + /* Populate params for secp224k1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_224K1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_224R1: + /* Populate params for secp224r1 + * (the NIST P-224 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_224R1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_256K1: + /* Populate params for secp256k1 */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_256K1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_384R1: + /* Populate params for secp384r1 + * (the NIST P-384 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_384R1, ec_field_GFp, + params, kmflag) ); + break; + + case ECCurve_SECG_PRIME_521R1: + /* Populate params for secp521r1 + * (the NIST P-521 curve) + */ + CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_521R1, ec_field_GFp, + params, kmflag) ); + break; + + default: + break; + }; + +cleanup: + if (!params->cofactor) { + PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE); +#if EC_DEBUG + printf("Unrecognized curve, returning NULL params\n"); +#endif + } + + return rv; +} + +SECStatus +EC_DecodeParams(const SECItem *encodedParams, ECParams **ecparams, int kmflag) +{ + PRArenaPool *arena; + ECParams *params; + SECStatus rv = SECFailure; + + /* Initialize an arena for the ECParams structure */ + if (!(arena = PORT_NewArena(NSS_FREEBL_DEFAULT_CHUNKSIZE))) + return SECFailure; + + params = (ECParams *)PORT_ArenaZAlloc(NULL, sizeof(ECParams), kmflag); + if (!params) { + PORT_FreeArena(NULL, B_TRUE); + return SECFailure; + } + + /* Copy the encoded params */ + SECITEM_AllocItem(arena, &(params->DEREncoding), encodedParams->len, + kmflag); + memcpy(params->DEREncoding.data, encodedParams->data, encodedParams->len); + + /* Fill out the rest of the ECParams structure based on + * the encoded params + */ + rv = EC_FillParams(NULL, encodedParams, params, kmflag); + if (rv == SECFailure) { + PORT_FreeArena(NULL, B_TRUE); + return SECFailure; + } else { + *ecparams = params;; + return SECSuccess; + } +} diff --git a/src/share/native/sun/security/ec/impl/ecl-curve.h b/src/share/native/sun/security/ec/impl/ecl-curve.h new file mode 100644 index 000000000..bb7f9a7d4 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl-curve.h @@ -0,0 +1,710 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECL_CURVE_H +#define _ECL_CURVE_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl-exp.h" +#ifndef _KERNEL +#include +#endif + +/* NIST prime curves */ +static const ECCurveParams ecCurve_NIST_P192 = { + "NIST-P192", ECField_GFp, 192, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC", + "64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1", + "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012", + "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811", + "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831", 1 +}; + +static const ECCurveParams ecCurve_NIST_P224 = { + "NIST-P224", ECField_GFp, 224, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE", + "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4", + "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21", + "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D", 1 +}; + +static const ECCurveParams ecCurve_NIST_P256 = { + "NIST-P256", ECField_GFp, 256, + "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF", + "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC", + "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B", + "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296", + "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5", + "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551", 1 +}; + +static const ECCurveParams ecCurve_NIST_P384 = { + "NIST-P384", ECField_GFp, 384, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC", + "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF", + "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B9859F741E082542A385502F25DBF55296C3A545E3872760AB7", + "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A147CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973", + 1 +}; + +static const ECCurveParams ecCurve_NIST_P521 = { + "NIST-P521", ECField_GFp, 521, + "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", + "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC", + "0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00", + "00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66", + "011839296A789A3BC0045C8A5FB42C7D1BD998F54449579B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C7086A272C24088BE94769FD16650", + "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409", + 1 +}; + +/* NIST binary curves */ +static const ECCurveParams ecCurve_NIST_K163 = { + "NIST-K163", ECField_GF2m, 163, + "0800000000000000000000000000000000000000C9", + "000000000000000000000000000000000000000001", + "000000000000000000000000000000000000000001", + "02FE13C0537BBC11ACAA07D793DE4E6D5E5C94EEE8", + "0289070FB05D38FF58321F2E800536D538CCDAA3D9", + "04000000000000000000020108A2E0CC0D99F8A5EF", 2 +}; + +static const ECCurveParams ecCurve_NIST_B163 = { + "NIST-B163", ECField_GF2m, 163, + "0800000000000000000000000000000000000000C9", + "000000000000000000000000000000000000000001", + "020A601907B8C953CA1481EB10512F78744A3205FD", + "03F0EBA16286A2D57EA0991168D4994637E8343E36", + "00D51FBC6C71A0094FA2CDD545B11C5C0C797324F1", + "040000000000000000000292FE77E70C12A4234C33", 2 +}; + +static const ECCurveParams ecCurve_NIST_K233 = { + "NIST-K233", ECField_GF2m, 233, + "020000000000000000000000000000000000000004000000000000000001", + "000000000000000000000000000000000000000000000000000000000000", + "000000000000000000000000000000000000000000000000000000000001", + "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126", + "01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3", + "008000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF", 4 +}; + +static const ECCurveParams ecCurve_NIST_B233 = { + "NIST-B233", ECField_GF2m, 233, + "020000000000000000000000000000000000000004000000000000000001", + "000000000000000000000000000000000000000000000000000000000001", + "0066647EDE6C332C7F8C0923BB58213B333B20E9CE4281FE115F7D8F90AD", + "00FAC9DFCBAC8313BB2139F1BB755FEF65BC391F8B36F8F8EB7371FD558B", + "01006A08A41903350678E58528BEBF8A0BEFF867A7CA36716F7E01F81052", + "01000000000000000000000000000013E974E72F8A6922031D2603CFE0D7", 2 +}; + +static const ECCurveParams ecCurve_NIST_K283 = { + "NIST-K283", ECField_GF2m, 283, + "0800000000000000000000000000000000000000000000000000000000000000000010A1", + "000000000000000000000000000000000000000000000000000000000000000000000000", + "000000000000000000000000000000000000000000000000000000000000000000000001", + "0503213F78CA44883F1A3B8162F188E553CD265F23C1567A16876913B0C2AC2458492836", + "01CCDA380F1C9E318D90F95D07E5426FE87E45C0E8184698E45962364E34116177DD2259", + "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE9AE2ED07577265DFF7F94451E061E163C61", 4 +}; + +static const ECCurveParams ecCurve_NIST_B283 = { + "NIST-B283", ECField_GF2m, 283, + "0800000000000000000000000000000000000000000000000000000000000000000010A1", + "000000000000000000000000000000000000000000000000000000000000000000000001", + "027B680AC8B8596DA5A4AF8A19A0303FCA97FD7645309FA2A581485AF6263E313B79A2F5", + "05F939258DB7DD90E1934F8C70B0DFEC2EED25B8557EAC9C80E2E198F8CDBECD86B12053", + "03676854FE24141CB98FE6D4B20D02B4516FF702350EDDB0826779C813F0DF45BE8112F4", + "03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEF90399660FC938A90165B042A7CEFADB307", 2 +}; + +static const ECCurveParams ecCurve_NIST_K409 = { + "NIST-K409", ECField_GF2m, 409, + "02000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000001", + "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", + "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", + "0060F05F658F49C1AD3AB1890F7184210EFD0987E307C84C27ACCFB8F9F67CC2C460189EB5AAAA62EE222EB1B35540CFE9023746", + "01E369050B7C4E42ACBA1DACBF04299C3460782F918EA427E6325165E9EA10E3DA5F6C42E9C55215AA9CA27A5863EC48D8E0286B", + "007FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE5F83B2D4EA20400EC4557D5ED3E3E7CA5B4B5C83B8E01E5FCF", 4 +}; + +static const ECCurveParams ecCurve_NIST_B409 = { + "NIST-B409", ECField_GF2m, 409, + "02000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000001", + "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", + "0021A5C2C8EE9FEB5C4B9A753B7B476B7FD6422EF1F3DD674761FA99D6AC27C8A9A197B272822F6CD57A55AA4F50AE317B13545F", + "015D4860D088DDB3496B0C6064756260441CDE4AF1771D4DB01FFE5B34E59703DC255A868A1180515603AEAB60794E54BB7996A7", + "0061B1CFAB6BE5F32BBFA78324ED106A7636B9C5A7BD198D0158AA4F5488D08F38514F1FDF4B4F40D2181B3681C364BA0273C706", + "010000000000000000000000000000000000000000000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173", 2 +}; + +static const ECCurveParams ecCurve_NIST_K571 = { + "NIST-K571", ECField_GF2m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}; + +static const ECCurveParams ecCurve_NIST_B571 = { + "NIST-B571", ECField_GF2m, 571, + "080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000425", + "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", + "02F40E7E2221F295DE297117B7F3D62F5C6A97FFCB8CEFF1CD6BA8CE4A9A18AD84FFABBD8EFA59332BE7AD6756A66E294AFD185A78FF12AA520E4DE739BACA0C7FFEFF7F2955727A", + "0303001D34B856296C16C0D40D3CD7750A93D1D2955FA80AA5F40FC8DB7B2ABDBDE53950F4C0D293CDD711A35B67FB1499AE60038614F1394ABFA3B4C850D927E1E7769C8EEC2D19", + "037BF27342DA639B6DCCFFFEB73D69D78C6C27A6009CBBCA1980F8533921E8A684423E43BAB08A576291AF8F461BB2A8B3531D2F0485C19B16E2F1516E23DD3C1A4827AF1B8AC15B", + "03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47", 2 +}; + +/* ANSI X9.62 prime curves */ +static const ECCurveParams ecCurve_X9_62_PRIME_192V2 = { + "X9.62 P-192V2", ECField_GFp, 192, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC", + "CC22D6DFB95C6B25E49C0D6364A4E5980C393AA21668D953", + "EEA2BAE7E1497842F2DE7769CFE9C989C072AD696F48034A", + "6574D11D69B6EC7A672BB82A083DF2F2B0847DE970B2DE15", + "FFFFFFFFFFFFFFFFFFFFFFFE5FB1A724DC80418648D8DD31", 1 +}; + +static const ECCurveParams ecCurve_X9_62_PRIME_192V3 = { + "X9.62 P-192V3", ECField_GFp, 192, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC", + "22123DC2395A05CAA7423DAECCC94760A7D462256BD56916", + "7D29778100C65A1DA1783716588DCE2B8B4AEE8E228F1896", + "38A90F22637337334B49DCB66A6DC8F9978ACA7648A943B0", + "FFFFFFFFFFFFFFFFFFFFFFFF7A62D031C83F4294F640EC13", 1 +}; + +static const ECCurveParams ecCurve_X9_62_PRIME_239V1 = { + "X9.62 P-239V1", ECField_GFp, 239, + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF", + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC", + "6B016C3BDCF18941D0D654921475CA71A9DB2FB27D1D37796185C2942C0A", + "0FFA963CDCA8816CCC33B8642BEDF905C3D358573D3F27FBBD3B3CB9AAAF", + "7DEBE8E4E90A5DAE6E4054CA530BA04654B36818CE226B39FCCB7B02F1AE", + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFF9E5E9A9F5D9071FBD1522688909D0B", 1 +}; + +static const ECCurveParams ecCurve_X9_62_PRIME_239V2 = { + "X9.62 P-239V2", ECField_GFp, 239, + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF", + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC", + "617FAB6832576CBBFED50D99F0249C3FEE58B94BA0038C7AE84C8C832F2C", + "38AF09D98727705120C921BB5E9E26296A3CDCF2F35757A0EAFD87B830E7", + "5B0125E4DBEA0EC7206DA0FC01D9B081329FB555DE6EF460237DFF8BE4BA", + "7FFFFFFFFFFFFFFFFFFFFFFF800000CFA7E8594377D414C03821BC582063", 1 +}; + +static const ECCurveParams ecCurve_X9_62_PRIME_239V3 = { + "X9.62 P-239V3", ECField_GFp, 239, + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFF", + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFF8000000000007FFFFFFFFFFC", + "255705FA2A306654B1F4CB03D6A750A30C250102D4988717D9BA15AB6D3E", + "6768AE8E18BB92CFCF005C949AA2C6D94853D0E660BBF854B1C9505FE95A", + "1607E6898F390C06BC1D552BAD226F3B6FCFE48B6E818499AF18E3ED6CF3", + "7FFFFFFFFFFFFFFFFFFFFFFF7FFFFF975DEB41B3A6057C3C432146526551", 1 +}; + +/* ANSI X9.62 binary curves */ +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB163V1 = { + "X9.62 C2-PNB163V1", ECField_GF2m, 163, + "080000000000000000000000000000000000000107", + "072546B5435234A422E0789675F432C89435DE5242", + "00C9517D06D5240D3CFF38C74B20B6CD4D6F9DD4D9", + "07AF69989546103D79329FCC3D74880F33BBE803CB", + "01EC23211B5966ADEA1D3F87F7EA5848AEF0B7CA9F", + "0400000000000000000001E60FC8821CC74DAEAFC1", 2 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB163V2 = { + "X9.62 C2-PNB163V2", ECField_GF2m, 163, + "080000000000000000000000000000000000000107", + "0108B39E77C4B108BED981ED0E890E117C511CF072", + "0667ACEB38AF4E488C407433FFAE4F1C811638DF20", + "0024266E4EB5106D0A964D92C4860E2671DB9B6CC5", + "079F684DDF6684C5CD258B3890021B2386DFD19FC5", + "03FFFFFFFFFFFFFFFFFFFDF64DE1151ADBB78F10A7", 2 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB163V3 = { + "X9.62 C2-PNB163V3", ECField_GF2m, 163, + "080000000000000000000000000000000000000107", + "07A526C63D3E25A256A007699F5447E32AE456B50E", + "03F7061798EB99E238FD6F1BF95B48FEEB4854252B", + "02F9F87B7C574D0BDECF8A22E6524775F98CDEBDCB", + "05B935590C155E17EA48EB3FF3718B893DF59A05D0", + "03FFFFFFFFFFFFFFFFFFFE1AEE140F110AFF961309", 2 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB176V1 = { + "X9.62 C2-PNB176V1", ECField_GF2m, 176, + "0100000000000000000000000000000000080000000007", + "E4E6DB2995065C407D9D39B8D0967B96704BA8E9C90B", + "5DDA470ABE6414DE8EC133AE28E9BBD7FCEC0AE0FFF2", + "8D16C2866798B600F9F08BB4A8E860F3298CE04A5798", + "6FA4539C2DADDDD6BAB5167D61B436E1D92BB16A562C", + "00010092537397ECA4F6145799D62B0A19CE06FE26AD", 0xFF6E +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB191V1 = { + "X9.62 C2-TNB191V1", ECField_GF2m, 191, + "800000000000000000000000000000000000000000000201", + "2866537B676752636A68F56554E12640276B649EF7526267", + "2E45EF571F00786F67B0081B9495A3D95462F5DE0AA185EC", + "36B3DAF8A23206F9C4F299D7B21A9C369137F2C84AE1AA0D", + "765BE73433B3F95E332932E70EA245CA2418EA0EF98018FB", + "40000000000000000000000004A20E90C39067C893BBB9A5", 2 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB191V2 = { + "X9.62 C2-TNB191V2", ECField_GF2m, 191, + "800000000000000000000000000000000000000000000201", + "401028774D7777C7B7666D1366EA432071274F89FF01E718", + "0620048D28BCBD03B6249C99182B7C8CD19700C362C46A01", + "3809B2B7CC1B28CC5A87926AAD83FD28789E81E2C9E3BF10", + "17434386626D14F3DBF01760D9213A3E1CF37AEC437D668A", + "20000000000000000000000050508CB89F652824E06B8173", 4 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB191V3 = { + "X9.62 C2-TNB191V3", ECField_GF2m, 191, + "800000000000000000000000000000000000000000000201", + "6C01074756099122221056911C77D77E77A777E7E7E77FCB", + "71FE1AF926CF847989EFEF8DB459F66394D90F32AD3F15E8", + "375D4CE24FDE434489DE8746E71786015009E66E38A926DD", + "545A39176196575D985999366E6AD34CE0A77CD7127B06BE", + "155555555555555555555555610C0B196812BFB6288A3EA3", 6 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB208W1 = { + "X9.62 C2-PNB208W1", ECField_GF2m, 208, + "010000000000000000000000000000000800000000000000000007", + "0000000000000000000000000000000000000000000000000000", + "C8619ED45A62E6212E1160349E2BFA844439FAFC2A3FD1638F9E", + "89FDFBE4ABE193DF9559ECF07AC0CE78554E2784EB8C1ED1A57A", + "0F55B51A06E78E9AC38A035FF520D8B01781BEB1A6BB08617DE3", + "000101BAF95C9723C57B6C21DA2EFF2D5ED588BDD5717E212F9D", 0xFE48 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB239V1 = { + "X9.62 C2-TNB239V1", ECField_GF2m, 239, + "800000000000000000000000000000000000000000000000001000000001", + "32010857077C5431123A46B808906756F543423E8D27877578125778AC76", + "790408F2EEDAF392B012EDEFB3392F30F4327C0CA3F31FC383C422AA8C16", + "57927098FA932E7C0A96D3FD5B706EF7E5F5C156E16B7E7C86038552E91D", + "61D8EE5077C33FECF6F1A16B268DE469C3C7744EA9A971649FC7A9616305", + "2000000000000000000000000000000F4D42FFE1492A4993F1CAD666E447", 4 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB239V2 = { + "X9.62 C2-TNB239V2", ECField_GF2m, 239, + "800000000000000000000000000000000000000000000000001000000001", + "4230017757A767FAE42398569B746325D45313AF0766266479B75654E65F", + "5037EA654196CFF0CD82B2C14A2FCF2E3FF8775285B545722F03EACDB74B", + "28F9D04E900069C8DC47A08534FE76D2B900B7D7EF31F5709F200C4CA205", + "5667334C45AFF3B5A03BAD9DD75E2C71A99362567D5453F7FA6E227EC833", + "1555555555555555555555555555553C6F2885259C31E3FCDF154624522D", 6 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB239V3 = { + "X9.62 C2-TNB239V3", ECField_GF2m, 239, + "800000000000000000000000000000000000000000000000001000000001", + "01238774666A67766D6676F778E676B66999176666E687666D8766C66A9F", + "6A941977BA9F6A435199ACFC51067ED587F519C5ECB541B8E44111DE1D40", + "70F6E9D04D289C4E89913CE3530BFDE903977D42B146D539BF1BDE4E9C92", + "2E5A0EAF6E5E1305B9004DCE5C0ED7FE59A35608F33837C816D80B79F461", + "0CCCCCCCCCCCCCCCCCCCCCCCCCCCCCAC4912D2D9DF903EF9888B8A0E4CFF", 0xA +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB272W1 = { + "X9.62 C2-PNB272W1", ECField_GF2m, 272, + "010000000000000000000000000000000000000000000000000000010000000000000B", + "91A091F03B5FBA4AB2CCF49C4EDD220FB028712D42BE752B2C40094DBACDB586FB20", + "7167EFC92BB2E3CE7C8AAAFF34E12A9C557003D7C73A6FAF003F99F6CC8482E540F7", + "6108BABB2CEEBCF787058A056CBE0CFE622D7723A289E08A07AE13EF0D10D171DD8D", + "10C7695716851EEF6BA7F6872E6142FBD241B830FF5EFCACECCAB05E02005DDE9D23", + "000100FAF51354E0E39E4892DF6E319C72C8161603FA45AA7B998A167B8F1E629521", + 0xFF06 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB304W1 = { + "X9.62 C2-PNB304W1", ECField_GF2m, 304, + "010000000000000000000000000000000000000000000000000000000000000000000000000807", + "FD0D693149A118F651E6DCE6802085377E5F882D1B510B44160074C1288078365A0396C8E681", + "BDDB97E555A50A908E43B01C798EA5DAA6788F1EA2794EFCF57166B8C14039601E55827340BE", + "197B07845E9BE2D96ADB0F5F3C7F2CFFBD7A3EB8B6FEC35C7FD67F26DDF6285A644F740A2614", + "E19FBEB76E0DA171517ECF401B50289BF014103288527A9B416A105E80260B549FDC1B92C03B", + "000101D556572AABAC800101D556572AABAC8001022D5C91DD173F8FB561DA6899164443051D", 0xFE2E +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB359V1 = { + "X9.62 C2-TNB359V1", ECField_GF2m, 359, + "800000000000000000000000000000000000000000000000000000000000000000000000100000000000000001", + "5667676A654B20754F356EA92017D946567C46675556F19556A04616B567D223A5E05656FB549016A96656A557", + "2472E2D0197C49363F1FE7F5B6DB075D52B6947D135D8CA445805D39BC345626089687742B6329E70680231988", + "3C258EF3047767E7EDE0F1FDAA79DAEE3841366A132E163ACED4ED2401DF9C6BDCDE98E8E707C07A2239B1B097", + "53D7E08529547048121E9C95F3791DD804963948F34FAE7BF44EA82365DC7868FE57E4AE2DE211305A407104BD", + "01AF286BCA1AF286BCA1AF286BCA1AF286BCA1AF286BC9FB8F6B85C556892C20A7EB964FE7719E74F490758D3B", 0x4C +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_PNB368W1 = { + "X9.62 C2-PNB368W1", ECField_GF2m, 368, + "0100000000000000000000000000000000000000000000000000000000000000000000002000000000000000000007", + "E0D2EE25095206F5E2A4F9ED229F1F256E79A0E2B455970D8D0D865BD94778C576D62F0AB7519CCD2A1A906AE30D", + "FC1217D4320A90452C760A58EDCD30C8DD069B3C34453837A34ED50CB54917E1C2112D84D164F444F8F74786046A", + "1085E2755381DCCCE3C1557AFA10C2F0C0C2825646C5B34A394CBCFA8BC16B22E7E789E927BE216F02E1FB136A5F", + "7B3EB1BDDCBA62D5D8B2059B525797FC73822C59059C623A45FF3843CEE8F87CD1855ADAA81E2A0750B80FDA2310", + "00010090512DA9AF72B08349D98A5DD4C7B0532ECA51CE03E2D10F3B7AC579BD87E909AE40A6F131E9CFCE5BD967", 0xFF70 +}; + +static const ECCurveParams ecCurve_X9_62_CHAR2_TNB431R1 = { + "X9.62 C2-TNB431R1", ECField_GF2m, 431, + "800000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000001", + "1A827EF00DD6FC0E234CAF046C6A5D8A85395B236CC4AD2CF32A0CADBDC9DDF620B0EB9906D0957F6C6FEACD615468DF104DE296CD8F", + "10D9B4A3D9047D8B154359ABFB1B7F5485B04CEB868237DDC9DEDA982A679A5A919B626D4E50A8DD731B107A9962381FB5D807BF2618", + "120FC05D3C67A99DE161D2F4092622FECA701BE4F50F4758714E8A87BBF2A658EF8C21E7C5EFE965361F6C2999C0C247B0DBD70CE6B7", + "20D0AF8903A96F8D5FA2C255745D3C451B302C9346D9B7E485E7BCE41F6B591F3E8F6ADDCBB0BC4C2F947A7DE1A89B625D6A598B3760", + "0340340340340340340340340340340340340340340340340340340323C313FAB50589703B5EC68D3587FEC60D161CC149C1AD4A91", 0x2760 +}; + +/* SEC2 prime curves */ +static const ECCurveParams ecCurve_SECG_PRIME_112R1 = { + "SECP-112R1", ECField_GFp, 112, + "DB7C2ABF62E35E668076BEAD208B", + "DB7C2ABF62E35E668076BEAD2088", + "659EF8BA043916EEDE8911702B22", + "09487239995A5EE76B55F9C2F098", + "A89CE5AF8724C0A23E0E0FF77500", + "DB7C2ABF62E35E7628DFAC6561C5", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_112R2 = { + "SECP-112R2", ECField_GFp, 112, + "DB7C2ABF62E35E668076BEAD208B", + "6127C24C05F38A0AAAF65C0EF02C", + "51DEF1815DB5ED74FCC34C85D709", + "4BA30AB5E892B4E1649DD0928643", + "adcd46f5882e3747def36e956e97", + "36DF0AAFD8B8D7597CA10520D04B", 4 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_128R1 = { + "SECP-128R1", ECField_GFp, 128, + "FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF", + "FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFC", + "E87579C11079F43DD824993C2CEE5ED3", + "161FF7528B899B2D0C28607CA52C5B86", + "CF5AC8395BAFEB13C02DA292DDED7A83", + "FFFFFFFE0000000075A30D1B9038A115", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_128R2 = { + "SECP-128R2", ECField_GFp, 128, + "FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF", + "D6031998D1B3BBFEBF59CC9BBFF9AEE1", + "5EEEFCA380D02919DC2C6558BB6D8A5D", + "7B6AA5D85E572983E6FB32A7CDEBC140", + "27B6916A894D3AEE7106FE805FC34B44", + "3FFFFFFF7FFFFFFFBE0024720613B5A3", 4 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_160K1 = { + "SECP-160K1", ECField_GFp, 160, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73", + "0000000000000000000000000000000000000000", + "0000000000000000000000000000000000000007", + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB", + "938CF935318FDCED6BC28286531733C3F03C4FEE", + "0100000000000000000001B8FA16DFAB9ACA16B6B3", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_160R1 = { + "SECP-160R1", ECField_GFp, 160, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC", + "1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45", + "4A96B5688EF573284664698968C38BB913CBFC82", + "23A628553168947D59DCC912042351377AC5FB32", + "0100000000000000000001F4C8F927AED3CA752257", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_160R2 = { + "SECP-160R2", ECField_GFp, 160, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC70", + "B4E134D3FB59EB8BAB57274904664D5AF50388BA", + "52DCB034293A117E1F4FF11B30F7199D3144CE6D", + "FEAFFEF2E331F296E071FA0DF9982CFEA7D43F2E", + "0100000000000000000000351EE786A818F3A1A16B", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_192K1 = { + "SECP-192K1", ECField_GFp, 192, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37", + "000000000000000000000000000000000000000000000000", + "000000000000000000000000000000000000000000000003", + "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D", + "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D", + "FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_224K1 = { + "SECP-224K1", ECField_GFp, 224, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFE56D", + "00000000000000000000000000000000000000000000000000000000", + "00000000000000000000000000000000000000000000000000000005", + "A1455B334DF099DF30FC28A169A467E9E47075A90F7E650EB6B7A45C", + "7E089FED7FBA344282CAFBD6F7E319F7C0B0BD59E2CA4BDB556D61A5", + "010000000000000000000000000001DCE8D2EC6184CAF0A971769FB1F7", 1 +}; + +static const ECCurveParams ecCurve_SECG_PRIME_256K1 = { + "SECP-256K1", ECField_GFp, 256, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F", + "0000000000000000000000000000000000000000000000000000000000000000", + "0000000000000000000000000000000000000000000000000000000000000007", + "79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798", + "483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8", + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", 1 +}; + +/* SEC2 binary curves */ +static const ECCurveParams ecCurve_SECG_CHAR2_113R1 = { + "SECT-113R1", ECField_GF2m, 113, + "020000000000000000000000000201", + "003088250CA6E7C7FE649CE85820F7", + "00E8BEE4D3E2260744188BE0E9C723", + "009D73616F35F4AB1407D73562C10F", + "00A52830277958EE84D1315ED31886", + "0100000000000000D9CCEC8A39E56F", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_113R2 = { + "SECT-113R2", ECField_GF2m, 113, + "020000000000000000000000000201", + "00689918DBEC7E5A0DD6DFC0AA55C7", + "0095E9A9EC9B297BD4BF36E059184F", + "01A57A6A7B26CA5EF52FCDB8164797", + "00B3ADC94ED1FE674C06E695BABA1D", + "010000000000000108789B2496AF93", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_131R1 = { + "SECT-131R1", ECField_GF2m, 131, + "080000000000000000000000000000010D", + "07A11B09A76B562144418FF3FF8C2570B8", + "0217C05610884B63B9C6C7291678F9D341", + "0081BAF91FDF9833C40F9C181343638399", + "078C6E7EA38C001F73C8134B1B4EF9E150", + "0400000000000000023123953A9464B54D", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_131R2 = { + "SECT-131R2", ECField_GF2m, 131, + "080000000000000000000000000000010D", + "03E5A88919D7CAFCBF415F07C2176573B2", + "04B8266A46C55657AC734CE38F018F2192", + "0356DCD8F2F95031AD652D23951BB366A8", + "0648F06D867940A5366D9E265DE9EB240F", + "0400000000000000016954A233049BA98F", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_163R1 = { + "SECT-163R1", ECField_GF2m, 163, + "0800000000000000000000000000000000000000C9", + "07B6882CAAEFA84F9554FF8428BD88E246D2782AE2", + "0713612DCDDCB40AAB946BDA29CA91F73AF958AFD9", + "0369979697AB43897789566789567F787A7876A654", + "00435EDB42EFAFB2989D51FEFCE3C80988F41FF883", + "03FFFFFFFFFFFFFFFFFFFF48AAB689C29CA710279B", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_193R1 = { + "SECT-193R1", ECField_GF2m, 193, + "02000000000000000000000000000000000000000000008001", + "0017858FEB7A98975169E171F77B4087DE098AC8A911DF7B01", + "00FDFB49BFE6C3A89FACADAA7A1E5BBC7CC1C2E5D831478814", + "01F481BC5F0FF84A74AD6CDF6FDEF4BF6179625372D8C0C5E1", + "0025E399F2903712CCF3EA9E3A1AD17FB0B3201B6AF7CE1B05", + "01000000000000000000000000C7F34A778F443ACC920EBA49", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_193R2 = { + "SECT-193R2", ECField_GF2m, 193, + "02000000000000000000000000000000000000000000008001", + "0163F35A5137C2CE3EA6ED8667190B0BC43ECD69977702709B", + "00C9BB9E8927D4D64C377E2AB2856A5B16E3EFB7F61D4316AE", + "00D9B67D192E0367C803F39E1A7E82CA14A651350AAE617E8F", + "01CE94335607C304AC29E7DEFBD9CA01F596F927224CDECF6C", + "010000000000000000000000015AAB561B005413CCD4EE99D5", 2 +}; + +static const ECCurveParams ecCurve_SECG_CHAR2_239K1 = { + "SECT-239K1", ECField_GF2m, 239, + "800000000000000000004000000000000000000000000000000000000001", + "000000000000000000000000000000000000000000000000000000000000", + "000000000000000000000000000000000000000000000000000000000001", + "29A0B6A887A983E9730988A68727A8B2D126C44CC2CC7B2A6555193035DC", + "76310804F12E549BDB011C103089E73510ACB275FC312A5DC6B76553F0CA", + "2000000000000000000000000000005A79FEC67CB6E91F1C1DA800E478A5", 4 +}; + +/* WTLS curves */ +static const ECCurveParams ecCurve_WTLS_1 = { + "WTLS-1", ECField_GF2m, 113, + "020000000000000000000000000201", + "000000000000000000000000000001", + "000000000000000000000000000001", + "01667979A40BA497E5D5C270780617", + "00F44B4AF1ECC2630E08785CEBCC15", + "00FFFFFFFFFFFFFFFDBF91AF6DEA73", 2 +}; + +static const ECCurveParams ecCurve_WTLS_8 = { + "WTLS-8", ECField_GFp, 112, + "FFFFFFFFFFFFFFFFFFFFFFFFFDE7", + "0000000000000000000000000000", + "0000000000000000000000000003", + "0000000000000000000000000001", + "0000000000000000000000000002", + "0100000000000001ECEA551AD837E9", 1 +}; + +static const ECCurveParams ecCurve_WTLS_9 = { + "WTLS-9", ECField_GFp, 160, + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC808F", + "0000000000000000000000000000000000000000", + "0000000000000000000000000000000000000003", + "0000000000000000000000000000000000000001", + "0000000000000000000000000000000000000002", + "0100000000000000000001CDC98AE0E2DE574ABF33", 1 +}; + +/* mapping between ECCurveName enum and pointers to ECCurveParams */ +static const ECCurveParams *ecCurve_map[] = { + NULL, /* ECCurve_noName */ + &ecCurve_NIST_P192, /* ECCurve_NIST_P192 */ + &ecCurve_NIST_P224, /* ECCurve_NIST_P224 */ + &ecCurve_NIST_P256, /* ECCurve_NIST_P256 */ + &ecCurve_NIST_P384, /* ECCurve_NIST_P384 */ + &ecCurve_NIST_P521, /* ECCurve_NIST_P521 */ + &ecCurve_NIST_K163, /* ECCurve_NIST_K163 */ + &ecCurve_NIST_B163, /* ECCurve_NIST_B163 */ + &ecCurve_NIST_K233, /* ECCurve_NIST_K233 */ + &ecCurve_NIST_B233, /* ECCurve_NIST_B233 */ + &ecCurve_NIST_K283, /* ECCurve_NIST_K283 */ + &ecCurve_NIST_B283, /* ECCurve_NIST_B283 */ + &ecCurve_NIST_K409, /* ECCurve_NIST_K409 */ + &ecCurve_NIST_B409, /* ECCurve_NIST_B409 */ + &ecCurve_NIST_K571, /* ECCurve_NIST_K571 */ + &ecCurve_NIST_B571, /* ECCurve_NIST_B571 */ + &ecCurve_X9_62_PRIME_192V2, /* ECCurve_X9_62_PRIME_192V2 */ + &ecCurve_X9_62_PRIME_192V3, /* ECCurve_X9_62_PRIME_192V3 */ + &ecCurve_X9_62_PRIME_239V1, /* ECCurve_X9_62_PRIME_239V1 */ + &ecCurve_X9_62_PRIME_239V2, /* ECCurve_X9_62_PRIME_239V2 */ + &ecCurve_X9_62_PRIME_239V3, /* ECCurve_X9_62_PRIME_239V3 */ + &ecCurve_X9_62_CHAR2_PNB163V1, /* ECCurve_X9_62_CHAR2_PNB163V1 */ + &ecCurve_X9_62_CHAR2_PNB163V2, /* ECCurve_X9_62_CHAR2_PNB163V2 */ + &ecCurve_X9_62_CHAR2_PNB163V3, /* ECCurve_X9_62_CHAR2_PNB163V3 */ + &ecCurve_X9_62_CHAR2_PNB176V1, /* ECCurve_X9_62_CHAR2_PNB176V1 */ + &ecCurve_X9_62_CHAR2_TNB191V1, /* ECCurve_X9_62_CHAR2_TNB191V1 */ + &ecCurve_X9_62_CHAR2_TNB191V2, /* ECCurve_X9_62_CHAR2_TNB191V2 */ + &ecCurve_X9_62_CHAR2_TNB191V3, /* ECCurve_X9_62_CHAR2_TNB191V3 */ + &ecCurve_X9_62_CHAR2_PNB208W1, /* ECCurve_X9_62_CHAR2_PNB208W1 */ + &ecCurve_X9_62_CHAR2_TNB239V1, /* ECCurve_X9_62_CHAR2_TNB239V1 */ + &ecCurve_X9_62_CHAR2_TNB239V2, /* ECCurve_X9_62_CHAR2_TNB239V2 */ + &ecCurve_X9_62_CHAR2_TNB239V3, /* ECCurve_X9_62_CHAR2_TNB239V3 */ + &ecCurve_X9_62_CHAR2_PNB272W1, /* ECCurve_X9_62_CHAR2_PNB272W1 */ + &ecCurve_X9_62_CHAR2_PNB304W1, /* ECCurve_X9_62_CHAR2_PNB304W1 */ + &ecCurve_X9_62_CHAR2_TNB359V1, /* ECCurve_X9_62_CHAR2_TNB359V1 */ + &ecCurve_X9_62_CHAR2_PNB368W1, /* ECCurve_X9_62_CHAR2_PNB368W1 */ + &ecCurve_X9_62_CHAR2_TNB431R1, /* ECCurve_X9_62_CHAR2_TNB431R1 */ + &ecCurve_SECG_PRIME_112R1, /* ECCurve_SECG_PRIME_112R1 */ + &ecCurve_SECG_PRIME_112R2, /* ECCurve_SECG_PRIME_112R2 */ + &ecCurve_SECG_PRIME_128R1, /* ECCurve_SECG_PRIME_128R1 */ + &ecCurve_SECG_PRIME_128R2, /* ECCurve_SECG_PRIME_128R2 */ + &ecCurve_SECG_PRIME_160K1, /* ECCurve_SECG_PRIME_160K1 */ + &ecCurve_SECG_PRIME_160R1, /* ECCurve_SECG_PRIME_160R1 */ + &ecCurve_SECG_PRIME_160R2, /* ECCurve_SECG_PRIME_160R2 */ + &ecCurve_SECG_PRIME_192K1, /* ECCurve_SECG_PRIME_192K1 */ + &ecCurve_SECG_PRIME_224K1, /* ECCurve_SECG_PRIME_224K1 */ + &ecCurve_SECG_PRIME_256K1, /* ECCurve_SECG_PRIME_256K1 */ + &ecCurve_SECG_CHAR2_113R1, /* ECCurve_SECG_CHAR2_113R1 */ + &ecCurve_SECG_CHAR2_113R2, /* ECCurve_SECG_CHAR2_113R2 */ + &ecCurve_SECG_CHAR2_131R1, /* ECCurve_SECG_CHAR2_131R1 */ + &ecCurve_SECG_CHAR2_131R2, /* ECCurve_SECG_CHAR2_131R2 */ + &ecCurve_SECG_CHAR2_163R1, /* ECCurve_SECG_CHAR2_163R1 */ + &ecCurve_SECG_CHAR2_193R1, /* ECCurve_SECG_CHAR2_193R1 */ + &ecCurve_SECG_CHAR2_193R2, /* ECCurve_SECG_CHAR2_193R2 */ + &ecCurve_SECG_CHAR2_239K1, /* ECCurve_SECG_CHAR2_239K1 */ + &ecCurve_WTLS_1, /* ECCurve_WTLS_1 */ + &ecCurve_WTLS_8, /* ECCurve_WTLS_8 */ + &ecCurve_WTLS_9, /* ECCurve_WTLS_9 */ + NULL /* ECCurve_pastLastCurve */ +}; + +#endif /* _ECL_CURVE_H */ diff --git a/src/share/native/sun/security/ec/impl/ecl-exp.h b/src/share/native/sun/security/ec/impl/ecl-exp.h new file mode 100644 index 000000000..ce9a2cf80 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl-exp.h @@ -0,0 +1,216 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECL_EXP_H +#define _ECL_EXP_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* Curve field type */ +typedef enum { + ECField_GFp, + ECField_GF2m +} ECField; + +/* Hexadecimal encoding of curve parameters */ +struct ECCurveParamsStr { + char *text; + ECField field; + unsigned int size; + char *irr; + char *curvea; + char *curveb; + char *genx; + char *geny; + char *order; + int cofactor; +}; +typedef struct ECCurveParamsStr ECCurveParams; + +/* Named curve parameters */ +typedef enum { + + ECCurve_noName = 0, + + /* NIST prime curves */ + ECCurve_NIST_P192, + ECCurve_NIST_P224, + ECCurve_NIST_P256, + ECCurve_NIST_P384, + ECCurve_NIST_P521, + + /* NIST binary curves */ + ECCurve_NIST_K163, + ECCurve_NIST_B163, + ECCurve_NIST_K233, + ECCurve_NIST_B233, + ECCurve_NIST_K283, + ECCurve_NIST_B283, + ECCurve_NIST_K409, + ECCurve_NIST_B409, + ECCurve_NIST_K571, + ECCurve_NIST_B571, + + /* ANSI X9.62 prime curves */ + /* ECCurve_X9_62_PRIME_192V1 == ECCurve_NIST_P192 */ + ECCurve_X9_62_PRIME_192V2, + ECCurve_X9_62_PRIME_192V3, + ECCurve_X9_62_PRIME_239V1, + ECCurve_X9_62_PRIME_239V2, + ECCurve_X9_62_PRIME_239V3, + /* ECCurve_X9_62_PRIME_256V1 == ECCurve_NIST_P256 */ + + /* ANSI X9.62 binary curves */ + ECCurve_X9_62_CHAR2_PNB163V1, + ECCurve_X9_62_CHAR2_PNB163V2, + ECCurve_X9_62_CHAR2_PNB163V3, + ECCurve_X9_62_CHAR2_PNB176V1, + ECCurve_X9_62_CHAR2_TNB191V1, + ECCurve_X9_62_CHAR2_TNB191V2, + ECCurve_X9_62_CHAR2_TNB191V3, + ECCurve_X9_62_CHAR2_PNB208W1, + ECCurve_X9_62_CHAR2_TNB239V1, + ECCurve_X9_62_CHAR2_TNB239V2, + ECCurve_X9_62_CHAR2_TNB239V3, + ECCurve_X9_62_CHAR2_PNB272W1, + ECCurve_X9_62_CHAR2_PNB304W1, + ECCurve_X9_62_CHAR2_TNB359V1, + ECCurve_X9_62_CHAR2_PNB368W1, + ECCurve_X9_62_CHAR2_TNB431R1, + + /* SEC2 prime curves */ + ECCurve_SECG_PRIME_112R1, + ECCurve_SECG_PRIME_112R2, + ECCurve_SECG_PRIME_128R1, + ECCurve_SECG_PRIME_128R2, + ECCurve_SECG_PRIME_160K1, + ECCurve_SECG_PRIME_160R1, + ECCurve_SECG_PRIME_160R2, + ECCurve_SECG_PRIME_192K1, + /* ECCurve_SECG_PRIME_192R1 == ECCurve_NIST_P192 */ + ECCurve_SECG_PRIME_224K1, + /* ECCurve_SECG_PRIME_224R1 == ECCurve_NIST_P224 */ + ECCurve_SECG_PRIME_256K1, + /* ECCurve_SECG_PRIME_256R1 == ECCurve_NIST_P256 */ + /* ECCurve_SECG_PRIME_384R1 == ECCurve_NIST_P384 */ + /* ECCurve_SECG_PRIME_521R1 == ECCurve_NIST_P521 */ + + /* SEC2 binary curves */ + ECCurve_SECG_CHAR2_113R1, + ECCurve_SECG_CHAR2_113R2, + ECCurve_SECG_CHAR2_131R1, + ECCurve_SECG_CHAR2_131R2, + /* ECCurve_SECG_CHAR2_163K1 == ECCurve_NIST_K163 */ + ECCurve_SECG_CHAR2_163R1, + /* ECCurve_SECG_CHAR2_163R2 == ECCurve_NIST_B163 */ + ECCurve_SECG_CHAR2_193R1, + ECCurve_SECG_CHAR2_193R2, + /* ECCurve_SECG_CHAR2_233K1 == ECCurve_NIST_K233 */ + /* ECCurve_SECG_CHAR2_233R1 == ECCurve_NIST_B233 */ + ECCurve_SECG_CHAR2_239K1, + /* ECCurve_SECG_CHAR2_283K1 == ECCurve_NIST_K283 */ + /* ECCurve_SECG_CHAR2_283R1 == ECCurve_NIST_B283 */ + /* ECCurve_SECG_CHAR2_409K1 == ECCurve_NIST_K409 */ + /* ECCurve_SECG_CHAR2_409R1 == ECCurve_NIST_B409 */ + /* ECCurve_SECG_CHAR2_571K1 == ECCurve_NIST_K571 */ + /* ECCurve_SECG_CHAR2_571R1 == ECCurve_NIST_B571 */ + + /* WTLS curves */ + ECCurve_WTLS_1, + /* there is no WTLS 2 curve */ + /* ECCurve_WTLS_3 == ECCurve_NIST_K163 */ + /* ECCurve_WTLS_4 == ECCurve_SECG_CHAR2_113R1 */ + /* ECCurve_WTLS_5 == ECCurve_X9_62_CHAR2_PNB163V1 */ + /* ECCurve_WTLS_6 == ECCurve_SECG_PRIME_112R1 */ + /* ECCurve_WTLS_7 == ECCurve_SECG_PRIME_160R1 */ + ECCurve_WTLS_8, + ECCurve_WTLS_9, + /* ECCurve_WTLS_10 == ECCurve_NIST_K233 */ + /* ECCurve_WTLS_11 == ECCurve_NIST_B233 */ + /* ECCurve_WTLS_12 == ECCurve_NIST_P224 */ + + ECCurve_pastLastCurve +} ECCurveName; + +/* Aliased named curves */ + +#define ECCurve_X9_62_PRIME_192V1 ECCurve_NIST_P192 +#define ECCurve_X9_62_PRIME_256V1 ECCurve_NIST_P256 +#define ECCurve_SECG_PRIME_192R1 ECCurve_NIST_P192 +#define ECCurve_SECG_PRIME_224R1 ECCurve_NIST_P224 +#define ECCurve_SECG_PRIME_256R1 ECCurve_NIST_P256 +#define ECCurve_SECG_PRIME_384R1 ECCurve_NIST_P384 +#define ECCurve_SECG_PRIME_521R1 ECCurve_NIST_P521 +#define ECCurve_SECG_CHAR2_163K1 ECCurve_NIST_K163 +#define ECCurve_SECG_CHAR2_163R2 ECCurve_NIST_B163 +#define ECCurve_SECG_CHAR2_233K1 ECCurve_NIST_K233 +#define ECCurve_SECG_CHAR2_233R1 ECCurve_NIST_B233 +#define ECCurve_SECG_CHAR2_283K1 ECCurve_NIST_K283 +#define ECCurve_SECG_CHAR2_283R1 ECCurve_NIST_B283 +#define ECCurve_SECG_CHAR2_409K1 ECCurve_NIST_K409 +#define ECCurve_SECG_CHAR2_409R1 ECCurve_NIST_B409 +#define ECCurve_SECG_CHAR2_571K1 ECCurve_NIST_K571 +#define ECCurve_SECG_CHAR2_571R1 ECCurve_NIST_B571 +#define ECCurve_WTLS_3 ECCurve_NIST_K163 +#define ECCurve_WTLS_4 ECCurve_SECG_CHAR2_113R1 +#define ECCurve_WTLS_5 ECCurve_X9_62_CHAR2_PNB163V1 +#define ECCurve_WTLS_6 ECCurve_SECG_PRIME_112R1 +#define ECCurve_WTLS_7 ECCurve_SECG_PRIME_160R1 +#define ECCurve_WTLS_10 ECCurve_NIST_K233 +#define ECCurve_WTLS_11 ECCurve_NIST_B233 +#define ECCurve_WTLS_12 ECCurve_NIST_P224 + +#endif /* _ECL_EXP_H */ diff --git a/src/share/native/sun/security/ec/impl/ecl-priv.h b/src/share/native/sun/security/ec/impl/ecl-priv.h new file mode 100644 index 000000000..12caaf705 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl-priv.h @@ -0,0 +1,304 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Stephen Fung and + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECL_PRIV_H +#define _ECL_PRIV_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl.h" +#include "mpi.h" +#include "mplogic.h" + +/* MAX_FIELD_SIZE_DIGITS is the maximum size of field element supported */ +/* the following needs to go away... */ +#if defined(MP_USE_LONG_LONG_DIGIT) || defined(MP_USE_LONG_DIGIT) +#define ECL_SIXTY_FOUR_BIT +#else +#define ECL_THIRTY_TWO_BIT +#endif + +#define ECL_CURVE_DIGITS(curve_size_in_bits) \ + (((curve_size_in_bits)+(sizeof(mp_digit)*8-1))/(sizeof(mp_digit)*8)) +#define ECL_BITS (sizeof(mp_digit)*8) +#define ECL_MAX_FIELD_SIZE_DIGITS (80/sizeof(mp_digit)) + +/* Gets the i'th bit in the binary representation of a. If i >= length(a), + * then return 0. (The above behaviour differs from mpl_get_bit, which + * causes an error if i >= length(a).) */ +#define MP_GET_BIT(a, i) \ + ((i) >= mpl_significant_bits((a))) ? 0 : mpl_get_bit((a), (i)) + +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) +#define MP_ADD_CARRY(a1, a2, s, cin, cout) \ + { mp_word w; \ + w = ((mp_word)(cin)) + (a1) + (a2); \ + s = ACCUM(w); \ + cout = CARRYOUT(w); } + +#define MP_SUB_BORROW(a1, a2, s, bin, bout) \ + { mp_word w; \ + w = ((mp_word)(a1)) - (a2) - (bin); \ + s = ACCUM(w); \ + bout = (w >> MP_DIGIT_BIT) & 1; } + +#else +/* NOTE, + * cin and cout could be the same variable. + * bin and bout could be the same variable. + * a1 or a2 and s could be the same variable. + * don't trash those outputs until their respective inputs have + * been read. */ +#define MP_ADD_CARRY(a1, a2, s, cin, cout) \ + { mp_digit tmp,sum; \ + tmp = (a1); \ + sum = tmp + (a2); \ + tmp = (sum < tmp); /* detect overflow */ \ + s = sum += (cin); \ + cout = tmp + (sum < (cin)); } + +#define MP_SUB_BORROW(a1, a2, s, bin, bout) \ + { mp_digit tmp; \ + tmp = (a1); \ + s = tmp - (a2); \ + tmp = (s > tmp); /* detect borrow */ \ + if ((bin) && !s--) tmp++; \ + bout = tmp; } +#endif + + +struct GFMethodStr; +typedef struct GFMethodStr GFMethod; +struct GFMethodStr { + /* Indicates whether the structure was constructed from dynamic memory + * or statically created. */ + int constructed; + /* Irreducible that defines the field. For prime fields, this is the + * prime p. For binary polynomial fields, this is the bitstring + * representation of the irreducible polynomial. */ + mp_int irr; + /* For prime fields, the value irr_arr[0] is the number of bits in the + * field. For binary polynomial fields, the irreducible polynomial + * f(t) is represented as an array of unsigned int[], where f(t) is + * of the form: f(t) = t^p[0] + t^p[1] + ... + t^p[4] where m = p[0] + * > p[1] > ... > p[4] = 0. */ + unsigned int irr_arr[5]; + /* Field arithmetic methods. All methods (except field_enc and + * field_dec) are assumed to take field-encoded parameters and return + * field-encoded values. All methods (except field_enc and field_dec) + * are required to be implemented. */ + mp_err (*field_add) (const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + mp_err (*field_neg) (const mp_int *a, mp_int *r, const GFMethod *meth); + mp_err (*field_sub) (const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + mp_err (*field_mod) (const mp_int *a, mp_int *r, const GFMethod *meth); + mp_err (*field_mul) (const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + mp_err (*field_sqr) (const mp_int *a, mp_int *r, const GFMethod *meth); + mp_err (*field_div) (const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + mp_err (*field_enc) (const mp_int *a, mp_int *r, const GFMethod *meth); + mp_err (*field_dec) (const mp_int *a, mp_int *r, const GFMethod *meth); + /* Extra storage for implementation-specific data. Any memory + * allocated to these extra fields will be cleared by extra_free. */ + void *extra1; + void *extra2; + void (*extra_free) (GFMethod *meth); +}; + +/* Construct generic GFMethods. */ +GFMethod *GFMethod_consGFp(const mp_int *irr); +GFMethod *GFMethod_consGFp_mont(const mp_int *irr); +GFMethod *GFMethod_consGF2m(const mp_int *irr, + const unsigned int irr_arr[5]); +/* Free the memory allocated (if any) to a GFMethod object. */ +void GFMethod_free(GFMethod *meth); + +struct ECGroupStr { + /* Indicates whether the structure was constructed from dynamic memory + * or statically created. */ + int constructed; + /* Field definition and arithmetic. */ + GFMethod *meth; + /* Textual representation of curve name, if any. */ + char *text; +#ifdef _KERNEL + int text_len; +#endif + /* Curve parameters, field-encoded. */ + mp_int curvea, curveb; + /* x and y coordinates of the base point, field-encoded. */ + mp_int genx, geny; + /* Order and cofactor of the base point. */ + mp_int order; + int cofactor; + /* Point arithmetic methods. All methods are assumed to take + * field-encoded parameters and return field-encoded values. All + * methods (except base_point_mul and points_mul) are required to be + * implemented. */ + mp_err (*point_add) (const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + mp_err (*point_sub) (const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + mp_err (*point_dbl) (const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); + mp_err (*point_mul) (const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); + mp_err (*base_point_mul) (const mp_int *n, mp_int *rx, mp_int *ry, + const ECGroup *group); + mp_err (*points_mul) (const mp_int *k1, const mp_int *k2, + const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); + mp_err (*validate_point) (const mp_int *px, const mp_int *py, const ECGroup *group); + /* Extra storage for implementation-specific data. Any memory + * allocated to these extra fields will be cleared by extra_free. */ + void *extra1; + void *extra2; + void (*extra_free) (ECGroup *group); +}; + +/* Wrapper functions for generic prime field arithmetic. */ +mp_err ec_GFp_add(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_neg(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GFp_sub(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + +/* fixed length in-line adds. Count is in words */ +mp_err ec_GFp_add_3(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_add_4(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_add_5(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_add_6(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sub_3(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sub_4(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sub_5(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sub_6(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + +mp_err ec_GFp_mod(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GFp_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sqr(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GFp_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +/* Wrapper functions for generic binary polynomial field arithmetic. */ +mp_err ec_GF2m_add(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GF2m_neg(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GF2m_mod(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GF2m_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GF2m_sqr(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GF2m_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); + +/* Montgomery prime field arithmetic. */ +mp_err ec_GFp_mul_mont(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_sqr_mont(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GFp_div_mont(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth); +mp_err ec_GFp_enc_mont(const mp_int *a, mp_int *r, const GFMethod *meth); +mp_err ec_GFp_dec_mont(const mp_int *a, mp_int *r, const GFMethod *meth); +void ec_GFp_extra_free_mont(GFMethod *meth); + +/* point multiplication */ +mp_err ec_pts_mul_basic(const mp_int *k1, const mp_int *k2, + const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); +mp_err ec_pts_mul_simul_w2(const mp_int *k1, const mp_int *k2, + const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Computes the windowed non-adjacent-form (NAF) of a scalar. Out should + * be an array of signed char's to output to, bitsize should be the number + * of bits of out, in is the original scalar, and w is the window size. + * NAF is discussed in the paper: D. Hankerson, J. Hernandez and A. + * Menezes, "Software implementation of elliptic curve cryptography over + * binary fields", Proc. CHES 2000. */ +mp_err ec_compute_wNAF(signed char *out, int bitsize, const mp_int *in, + int w); + +/* Optimized field arithmetic */ +mp_err ec_group_set_gfp192(ECGroup *group, ECCurveName); +mp_err ec_group_set_gfp224(ECGroup *group, ECCurveName); +mp_err ec_group_set_gfp256(ECGroup *group, ECCurveName); +mp_err ec_group_set_gfp384(ECGroup *group, ECCurveName); +mp_err ec_group_set_gfp521(ECGroup *group, ECCurveName); +mp_err ec_group_set_gf2m163(ECGroup *group, ECCurveName name); +mp_err ec_group_set_gf2m193(ECGroup *group, ECCurveName name); +mp_err ec_group_set_gf2m233(ECGroup *group, ECCurveName name); + +/* Optimized floating-point arithmetic */ +#ifdef ECL_USE_FP +mp_err ec_group_set_secp160r1_fp(ECGroup *group); +mp_err ec_group_set_nistp192_fp(ECGroup *group); +mp_err ec_group_set_nistp224_fp(ECGroup *group); +#endif + +#endif /* _ECL_PRIV_H */ diff --git a/src/share/native/sun/security/ec/impl/ecl.c b/src/share/native/sun/security/ec/impl/ecl.c new file mode 100644 index 000000000..7089a6d0e --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl.c @@ -0,0 +1,475 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi.h" +#include "mplogic.h" +#include "ecl.h" +#include "ecl-priv.h" +#include "ec2.h" +#include "ecp.h" +#ifndef _KERNEL +#include +#include +#endif + +/* Allocate memory for a new ECGroup object. */ +ECGroup * +ECGroup_new(int kmflag) +{ + mp_err res = MP_OKAY; + ECGroup *group; +#ifdef _KERNEL + group = (ECGroup *) kmem_alloc(sizeof(ECGroup), kmflag); +#else + group = (ECGroup *) malloc(sizeof(ECGroup)); +#endif + if (group == NULL) + return NULL; + group->constructed = MP_YES; + group->meth = NULL; + group->text = NULL; + MP_DIGITS(&group->curvea) = 0; + MP_DIGITS(&group->curveb) = 0; + MP_DIGITS(&group->genx) = 0; + MP_DIGITS(&group->geny) = 0; + MP_DIGITS(&group->order) = 0; + group->base_point_mul = NULL; + group->points_mul = NULL; + group->validate_point = NULL; + group->extra1 = NULL; + group->extra2 = NULL; + group->extra_free = NULL; + MP_CHECKOK(mp_init(&group->curvea, kmflag)); + MP_CHECKOK(mp_init(&group->curveb, kmflag)); + MP_CHECKOK(mp_init(&group->genx, kmflag)); + MP_CHECKOK(mp_init(&group->geny, kmflag)); + MP_CHECKOK(mp_init(&group->order, kmflag)); + + CLEANUP: + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} + +/* Construct a generic ECGroup for elliptic curves over prime fields. */ +ECGroup * +ECGroup_consGFp(const mp_int *irr, const mp_int *curvea, + const mp_int *curveb, const mp_int *genx, + const mp_int *geny, const mp_int *order, int cofactor) +{ + mp_err res = MP_OKAY; + ECGroup *group = NULL; + + group = ECGroup_new(FLAG(irr)); + if (group == NULL) + return NULL; + + group->meth = GFMethod_consGFp(irr); + if (group->meth == NULL) { + res = MP_MEM; + goto CLEANUP; + } + MP_CHECKOK(mp_copy(curvea, &group->curvea)); + MP_CHECKOK(mp_copy(curveb, &group->curveb)); + MP_CHECKOK(mp_copy(genx, &group->genx)); + MP_CHECKOK(mp_copy(geny, &group->geny)); + MP_CHECKOK(mp_copy(order, &group->order)); + group->cofactor = cofactor; + group->point_add = &ec_GFp_pt_add_aff; + group->point_sub = &ec_GFp_pt_sub_aff; + group->point_dbl = &ec_GFp_pt_dbl_aff; + group->point_mul = &ec_GFp_pt_mul_jm_wNAF; + group->base_point_mul = NULL; + group->points_mul = &ec_GFp_pts_mul_jac; + group->validate_point = &ec_GFp_validate_point; + + CLEANUP: + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} + +/* Construct a generic ECGroup for elliptic curves over prime fields with + * field arithmetic implemented in Montgomery coordinates. */ +ECGroup * +ECGroup_consGFp_mont(const mp_int *irr, const mp_int *curvea, + const mp_int *curveb, const mp_int *genx, + const mp_int *geny, const mp_int *order, int cofactor) +{ + mp_err res = MP_OKAY; + ECGroup *group = NULL; + + group = ECGroup_new(FLAG(irr)); + if (group == NULL) + return NULL; + + group->meth = GFMethod_consGFp_mont(irr); + if (group->meth == NULL) { + res = MP_MEM; + goto CLEANUP; + } + MP_CHECKOK(group->meth-> + field_enc(curvea, &group->curvea, group->meth)); + MP_CHECKOK(group->meth-> + field_enc(curveb, &group->curveb, group->meth)); + MP_CHECKOK(group->meth->field_enc(genx, &group->genx, group->meth)); + MP_CHECKOK(group->meth->field_enc(geny, &group->geny, group->meth)); + MP_CHECKOK(mp_copy(order, &group->order)); + group->cofactor = cofactor; + group->point_add = &ec_GFp_pt_add_aff; + group->point_sub = &ec_GFp_pt_sub_aff; + group->point_dbl = &ec_GFp_pt_dbl_aff; + group->point_mul = &ec_GFp_pt_mul_jm_wNAF; + group->base_point_mul = NULL; + group->points_mul = &ec_GFp_pts_mul_jac; + group->validate_point = &ec_GFp_validate_point; + + CLEANUP: + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} + +#ifdef NSS_ECC_MORE_THAN_SUITE_B +/* Construct a generic ECGroup for elliptic curves over binary polynomial + * fields. */ +ECGroup * +ECGroup_consGF2m(const mp_int *irr, const unsigned int irr_arr[5], + const mp_int *curvea, const mp_int *curveb, + const mp_int *genx, const mp_int *geny, + const mp_int *order, int cofactor) +{ + mp_err res = MP_OKAY; + ECGroup *group = NULL; + + group = ECGroup_new(FLAG(irr)); + if (group == NULL) + return NULL; + + group->meth = GFMethod_consGF2m(irr, irr_arr); + if (group->meth == NULL) { + res = MP_MEM; + goto CLEANUP; + } + MP_CHECKOK(mp_copy(curvea, &group->curvea)); + MP_CHECKOK(mp_copy(curveb, &group->curveb)); + MP_CHECKOK(mp_copy(genx, &group->genx)); + MP_CHECKOK(mp_copy(geny, &group->geny)); + MP_CHECKOK(mp_copy(order, &group->order)); + group->cofactor = cofactor; + group->point_add = &ec_GF2m_pt_add_aff; + group->point_sub = &ec_GF2m_pt_sub_aff; + group->point_dbl = &ec_GF2m_pt_dbl_aff; + group->point_mul = &ec_GF2m_pt_mul_mont; + group->base_point_mul = NULL; + group->points_mul = &ec_pts_mul_basic; + group->validate_point = &ec_GF2m_validate_point; + + CLEANUP: + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} +#endif + +/* Construct ECGroup from hex parameters and name, if any. Called by + * ECGroup_fromHex and ECGroup_fromName. */ +ECGroup * +ecgroup_fromNameAndHex(const ECCurveName name, + const ECCurveParams * params, int kmflag) +{ + mp_int irr, curvea, curveb, genx, geny, order; + int bits; + ECGroup *group = NULL; + mp_err res = MP_OKAY; + + /* initialize values */ + MP_DIGITS(&irr) = 0; + MP_DIGITS(&curvea) = 0; + MP_DIGITS(&curveb) = 0; + MP_DIGITS(&genx) = 0; + MP_DIGITS(&geny) = 0; + MP_DIGITS(&order) = 0; + MP_CHECKOK(mp_init(&irr, kmflag)); + MP_CHECKOK(mp_init(&curvea, kmflag)); + MP_CHECKOK(mp_init(&curveb, kmflag)); + MP_CHECKOK(mp_init(&genx, kmflag)); + MP_CHECKOK(mp_init(&geny, kmflag)); + MP_CHECKOK(mp_init(&order, kmflag)); + MP_CHECKOK(mp_read_radix(&irr, params->irr, 16)); + MP_CHECKOK(mp_read_radix(&curvea, params->curvea, 16)); + MP_CHECKOK(mp_read_radix(&curveb, params->curveb, 16)); + MP_CHECKOK(mp_read_radix(&genx, params->genx, 16)); + MP_CHECKOK(mp_read_radix(&geny, params->geny, 16)); + MP_CHECKOK(mp_read_radix(&order, params->order, 16)); + + /* determine number of bits */ + bits = mpl_significant_bits(&irr) - 1; + if (bits < MP_OKAY) { + res = bits; + goto CLEANUP; + } + + /* determine which optimizations (if any) to use */ + if (params->field == ECField_GFp) { +#ifdef NSS_ECC_MORE_THAN_SUITE_B + switch (name) { +#ifdef ECL_USE_FP + case ECCurve_SECG_PRIME_160R1: + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_secp160r1_fp(group)); + break; +#endif + case ECCurve_SECG_PRIME_192R1: +#ifdef ECL_USE_FP + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_nistp192_fp(group)); +#else + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_gfp192(group, name)); +#endif + break; + case ECCurve_SECG_PRIME_224R1: +#ifdef ECL_USE_FP + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_nistp224_fp(group)); +#else + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_gfp224(group, name)); +#endif + break; + case ECCurve_SECG_PRIME_256R1: + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_gfp256(group, name)); + break; + case ECCurve_SECG_PRIME_521R1: + group = + ECGroup_consGFp(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + MP_CHECKOK(ec_group_set_gfp521(group, name)); + break; + default: + /* use generic arithmetic */ +#endif + group = + ECGroup_consGFp_mont(&irr, &curvea, &curveb, &genx, &geny, + &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } +#ifdef NSS_ECC_MORE_THAN_SUITE_B + } + } else if (params->field == ECField_GF2m) { + group = ECGroup_consGF2m(&irr, NULL, &curvea, &curveb, &genx, &geny, &order, params->cofactor); + if (group == NULL) { res = MP_UNDEF; goto CLEANUP; } + if ((name == ECCurve_NIST_K163) || + (name == ECCurve_NIST_B163) || + (name == ECCurve_SECG_CHAR2_163R1)) { + MP_CHECKOK(ec_group_set_gf2m163(group, name)); + } else if ((name == ECCurve_SECG_CHAR2_193R1) || + (name == ECCurve_SECG_CHAR2_193R2)) { + MP_CHECKOK(ec_group_set_gf2m193(group, name)); + } else if ((name == ECCurve_NIST_K233) || + (name == ECCurve_NIST_B233)) { + MP_CHECKOK(ec_group_set_gf2m233(group, name)); + } +#endif + } else { + res = MP_UNDEF; + goto CLEANUP; + } + + /* set name, if any */ + if ((group != NULL) && (params->text != NULL)) { +#ifdef _KERNEL + int n = strlen(params->text) + 1; + + group->text = kmem_alloc(n, kmflag); + if (group->text == NULL) { + res = MP_MEM; + goto CLEANUP; + } + bcopy(params->text, group->text, n); + group->text_len = n; +#else + group->text = strdup(params->text); + if (group->text == NULL) { + res = MP_MEM; + } +#endif + } + + CLEANUP: + mp_clear(&irr); + mp_clear(&curvea); + mp_clear(&curveb); + mp_clear(&genx); + mp_clear(&geny); + mp_clear(&order); + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} + +/* Construct ECGroup from hexadecimal representations of parameters. */ +ECGroup * +ECGroup_fromHex(const ECCurveParams * params, int kmflag) +{ + return ecgroup_fromNameAndHex(ECCurve_noName, params, kmflag); +} + +/* Construct ECGroup from named parameters. */ +ECGroup * +ECGroup_fromName(const ECCurveName name, int kmflag) +{ + ECGroup *group = NULL; + ECCurveParams *params = NULL; + mp_err res = MP_OKAY; + + params = EC_GetNamedCurveParams(name, kmflag); + if (params == NULL) { + res = MP_UNDEF; + goto CLEANUP; + } + + /* construct actual group */ + group = ecgroup_fromNameAndHex(name, params, kmflag); + if (group == NULL) { + res = MP_UNDEF; + goto CLEANUP; + } + + CLEANUP: + EC_FreeCurveParams(params); + if (res != MP_OKAY) { + ECGroup_free(group); + return NULL; + } + return group; +} + +/* Validates an EC public key as described in Section 5.2.2 of X9.62. */ +mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const + mp_int *py) +{ + /* 1: Verify that publicValue is not the point at infinity */ + /* 2: Verify that the coordinates of publicValue are elements + * of the field. + */ + /* 3: Verify that publicValue is on the curve. */ + /* 4: Verify that the order of the curve times the publicValue + * is the point at infinity. + */ + return group->validate_point(px, py, group); +} + +/* Free the memory allocated (if any) to an ECGroup object. */ +void +ECGroup_free(ECGroup *group) +{ + if (group == NULL) + return; + GFMethod_free(group->meth); + if (group->constructed == MP_NO) + return; + mp_clear(&group->curvea); + mp_clear(&group->curveb); + mp_clear(&group->genx); + mp_clear(&group->geny); + mp_clear(&group->order); + if (group->text != NULL) +#ifdef _KERNEL + kmem_free(group->text, group->text_len); +#else + free(group->text); +#endif + if (group->extra_free != NULL) + group->extra_free(group); +#ifdef _KERNEL + kmem_free(group, sizeof (ECGroup)); +#else + free(group); +#endif +} diff --git a/src/share/native/sun/security/ec/impl/ecl.h b/src/share/native/sun/security/ec/impl/ecl.h new file mode 100644 index 000000000..9dcdbc677 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl.h @@ -0,0 +1,111 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECL_H +#define _ECL_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* Although this is not an exported header file, code which uses elliptic + * curve point operations will need to include it. */ + +#include "ecl-exp.h" +#include "mpi.h" + +struct ECGroupStr; +typedef struct ECGroupStr ECGroup; + +/* Construct ECGroup from hexadecimal representations of parameters. */ +ECGroup *ECGroup_fromHex(const ECCurveParams * params, int kmflag); + +/* Construct ECGroup from named parameters. */ +ECGroup *ECGroup_fromName(const ECCurveName name, int kmflag); + +/* Free an allocated ECGroup. */ +void ECGroup_free(ECGroup *group); + +/* Construct ECCurveParams from an ECCurveName */ +ECCurveParams *EC_GetNamedCurveParams(const ECCurveName name, int kmflag); + +/* Duplicates an ECCurveParams */ +ECCurveParams *ECCurveParams_dup(const ECCurveParams * params, int kmflag); + +/* Free an allocated ECCurveParams */ +void EC_FreeCurveParams(ECCurveParams * params); + +/* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k * P(x, + * y). If x, y = NULL, then P is assumed to be the generator (base point) + * of the group of points on the elliptic curve. Input and output values + * are assumed to be NOT field-encoded. */ +mp_err ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px, + const mp_int *py, mp_int *qx, mp_int *qy); + +/* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k1 * G + + * k2 * P(x, y), where G is the generator (base point) of the group of + * points on the elliptic curve. Input and output values are assumed to + * be NOT field-encoded. */ +mp_err ECPoints_mul(const ECGroup *group, const mp_int *k1, + const mp_int *k2, const mp_int *px, const mp_int *py, + mp_int *qx, mp_int *qy); + +/* Validates an EC public key as described in Section 5.2.2 of X9.62. + * Returns MP_YES if the public key is valid, MP_NO if the public key + * is invalid, or an error code if the validation could not be + * performed. */ +mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const + mp_int *py); + +#endif /* _ECL_H */ diff --git a/src/share/native/sun/security/ec/impl/ecl_curve.c b/src/share/native/sun/security/ec/impl/ecl_curve.c new file mode 100644 index 000000000..d2d2d8229 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl_curve.c @@ -0,0 +1,216 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl.h" +#include "ecl-curve.h" +#include "ecl-priv.h" +#ifndef _KERNEL +#include +#include +#endif + +#define CHECK(func) if ((func) == NULL) { res = 0; goto CLEANUP; } + +/* Duplicates an ECCurveParams */ +ECCurveParams * +ECCurveParams_dup(const ECCurveParams * params, int kmflag) +{ + int res = 1; + ECCurveParams *ret = NULL; + +#ifdef _KERNEL + ret = (ECCurveParams *) kmem_zalloc(sizeof(ECCurveParams), kmflag); +#else + CHECK(ret = (ECCurveParams *) calloc(1, sizeof(ECCurveParams))); +#endif + if (params->text != NULL) { +#ifdef _KERNEL + ret->text = kmem_alloc(strlen(params->text) + 1, kmflag); + bcopy(params->text, ret->text, strlen(params->text) + 1); +#else + CHECK(ret->text = strdup(params->text)); +#endif + } + ret->field = params->field; + ret->size = params->size; + if (params->irr != NULL) { +#ifdef _KERNEL + ret->irr = kmem_alloc(strlen(params->irr) + 1, kmflag); + bcopy(params->irr, ret->irr, strlen(params->irr) + 1); +#else + CHECK(ret->irr = strdup(params->irr)); +#endif + } + if (params->curvea != NULL) { +#ifdef _KERNEL + ret->curvea = kmem_alloc(strlen(params->curvea) + 1, kmflag); + bcopy(params->curvea, ret->curvea, strlen(params->curvea) + 1); +#else + CHECK(ret->curvea = strdup(params->curvea)); +#endif + } + if (params->curveb != NULL) { +#ifdef _KERNEL + ret->curveb = kmem_alloc(strlen(params->curveb) + 1, kmflag); + bcopy(params->curveb, ret->curveb, strlen(params->curveb) + 1); +#else + CHECK(ret->curveb = strdup(params->curveb)); +#endif + } + if (params->genx != NULL) { +#ifdef _KERNEL + ret->genx = kmem_alloc(strlen(params->genx) + 1, kmflag); + bcopy(params->genx, ret->genx, strlen(params->genx) + 1); +#else + CHECK(ret->genx = strdup(params->genx)); +#endif + } + if (params->geny != NULL) { +#ifdef _KERNEL + ret->geny = kmem_alloc(strlen(params->geny) + 1, kmflag); + bcopy(params->geny, ret->geny, strlen(params->geny) + 1); +#else + CHECK(ret->geny = strdup(params->geny)); +#endif + } + if (params->order != NULL) { +#ifdef _KERNEL + ret->order = kmem_alloc(strlen(params->order) + 1, kmflag); + bcopy(params->order, ret->order, strlen(params->order) + 1); +#else + CHECK(ret->order = strdup(params->order)); +#endif + } + ret->cofactor = params->cofactor; + + CLEANUP: + if (res != 1) { + EC_FreeCurveParams(ret); + return NULL; + } + return ret; +} + +#undef CHECK + +/* Construct ECCurveParams from an ECCurveName */ +ECCurveParams * +EC_GetNamedCurveParams(const ECCurveName name, int kmflag) +{ + if ((name <= ECCurve_noName) || (ECCurve_pastLastCurve <= name) || + (ecCurve_map[name] == NULL)) { + return NULL; + } else { + return ECCurveParams_dup(ecCurve_map[name], kmflag); + } +} + +/* Free the memory allocated (if any) to an ECCurveParams object. */ +void +EC_FreeCurveParams(ECCurveParams * params) +{ + if (params == NULL) + return; + if (params->text != NULL) +#ifdef _KERNEL + kmem_free(params->text, strlen(params->text) + 1); +#else + free(params->text); +#endif + if (params->irr != NULL) +#ifdef _KERNEL + kmem_free(params->irr, strlen(params->irr) + 1); +#else + free(params->irr); +#endif + if (params->curvea != NULL) +#ifdef _KERNEL + kmem_free(params->curvea, strlen(params->curvea) + 1); +#else + free(params->curvea); +#endif + if (params->curveb != NULL) +#ifdef _KERNEL + kmem_free(params->curveb, strlen(params->curveb) + 1); +#else + free(params->curveb); +#endif + if (params->genx != NULL) +#ifdef _KERNEL + kmem_free(params->genx, strlen(params->genx) + 1); +#else + free(params->genx); +#endif + if (params->geny != NULL) +#ifdef _KERNEL + kmem_free(params->geny, strlen(params->geny) + 1); +#else + free(params->geny); +#endif + if (params->order != NULL) +#ifdef _KERNEL + kmem_free(params->order, strlen(params->order) + 1); +#else + free(params->order); +#endif +#ifdef _KERNEL + kmem_free(params, sizeof(ECCurveParams)); +#else + free(params); +#endif +} diff --git a/src/share/native/sun/security/ec/impl/ecl_gf.c b/src/share/native/sun/security/ec/impl/ecl_gf.c new file mode 100644 index 000000000..a651fa84e --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl_gf.c @@ -0,0 +1,1062 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Stephen Fung and + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi.h" +#include "mp_gf2m.h" +#include "ecl-priv.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Allocate memory for a new GFMethod object. */ +GFMethod * +GFMethod_new(int kmflag) +{ + mp_err res = MP_OKAY; + GFMethod *meth; +#ifdef _KERNEL + meth = (GFMethod *) kmem_alloc(sizeof(GFMethod), kmflag); +#else + meth = (GFMethod *) malloc(sizeof(GFMethod)); + if (meth == NULL) + return NULL; +#endif + meth->constructed = MP_YES; + MP_DIGITS(&meth->irr) = 0; + meth->extra_free = NULL; + MP_CHECKOK(mp_init(&meth->irr, kmflag)); + + CLEANUP: + if (res != MP_OKAY) { + GFMethod_free(meth); + return NULL; + } + return meth; +} + +/* Construct a generic GFMethod for arithmetic over prime fields with + * irreducible irr. */ +GFMethod * +GFMethod_consGFp(const mp_int *irr) +{ + mp_err res = MP_OKAY; + GFMethod *meth = NULL; + + meth = GFMethod_new(FLAG(irr)); + if (meth == NULL) + return NULL; + + MP_CHECKOK(mp_copy(irr, &meth->irr)); + meth->irr_arr[0] = mpl_significant_bits(irr); + meth->irr_arr[1] = meth->irr_arr[2] = meth->irr_arr[3] = + meth->irr_arr[4] = 0; + switch(MP_USED(&meth->irr)) { + /* maybe we need 1 and 2 words here as well?*/ + case 3: + meth->field_add = &ec_GFp_add_3; + meth->field_sub = &ec_GFp_sub_3; + break; + case 4: + meth->field_add = &ec_GFp_add_4; + meth->field_sub = &ec_GFp_sub_4; + break; + case 5: + meth->field_add = &ec_GFp_add_5; + meth->field_sub = &ec_GFp_sub_5; + break; + case 6: + meth->field_add = &ec_GFp_add_6; + meth->field_sub = &ec_GFp_sub_6; + break; + default: + meth->field_add = &ec_GFp_add; + meth->field_sub = &ec_GFp_sub; + } + meth->field_neg = &ec_GFp_neg; + meth->field_mod = &ec_GFp_mod; + meth->field_mul = &ec_GFp_mul; + meth->field_sqr = &ec_GFp_sqr; + meth->field_div = &ec_GFp_div; + meth->field_enc = NULL; + meth->field_dec = NULL; + meth->extra1 = NULL; + meth->extra2 = NULL; + meth->extra_free = NULL; + + CLEANUP: + if (res != MP_OKAY) { + GFMethod_free(meth); + return NULL; + } + return meth; +} + +/* Construct a generic GFMethod for arithmetic over binary polynomial + * fields with irreducible irr that has array representation irr_arr (see + * ecl-priv.h for description of the representation). If irr_arr is NULL, + * then it is constructed from the bitstring representation. */ +GFMethod * +GFMethod_consGF2m(const mp_int *irr, const unsigned int irr_arr[5]) +{ + mp_err res = MP_OKAY; + int ret; + GFMethod *meth = NULL; + + meth = GFMethod_new(FLAG(irr)); + if (meth == NULL) + return NULL; + + MP_CHECKOK(mp_copy(irr, &meth->irr)); + if (irr_arr != NULL) { + /* Irreducible polynomials are either trinomials or pentanomials. */ + meth->irr_arr[0] = irr_arr[0]; + meth->irr_arr[1] = irr_arr[1]; + meth->irr_arr[2] = irr_arr[2]; + if (irr_arr[2] > 0) { + meth->irr_arr[3] = irr_arr[3]; + meth->irr_arr[4] = irr_arr[4]; + } else { + meth->irr_arr[3] = meth->irr_arr[4] = 0; + } + } else { + ret = mp_bpoly2arr(irr, meth->irr_arr, 5); + /* Irreducible polynomials are either trinomials or pentanomials. */ + if ((ret != 5) && (ret != 3)) { + res = MP_UNDEF; + goto CLEANUP; + } + } + meth->field_add = &ec_GF2m_add; + meth->field_neg = &ec_GF2m_neg; + meth->field_sub = &ec_GF2m_add; + meth->field_mod = &ec_GF2m_mod; + meth->field_mul = &ec_GF2m_mul; + meth->field_sqr = &ec_GF2m_sqr; + meth->field_div = &ec_GF2m_div; + meth->field_enc = NULL; + meth->field_dec = NULL; + meth->extra1 = NULL; + meth->extra2 = NULL; + meth->extra_free = NULL; + + CLEANUP: + if (res != MP_OKAY) { + GFMethod_free(meth); + return NULL; + } + return meth; +} + +/* Free the memory allocated (if any) to a GFMethod object. */ +void +GFMethod_free(GFMethod *meth) +{ + if (meth == NULL) + return; + if (meth->constructed == MP_NO) + return; + mp_clear(&meth->irr); + if (meth->extra_free != NULL) + meth->extra_free(meth); +#ifdef _KERNEL + kmem_free(meth, sizeof(GFMethod)); +#else + free(meth); +#endif +} + +/* Wrapper functions for generic prime field arithmetic. */ + +/* Add two field elements. Assumes that 0 <= a, b < meth->irr */ +mp_err +ec_GFp_add(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + /* PRE: 0 <= a, b < p = meth->irr POST: 0 <= r < p, r = a + b (mod p) */ + mp_err res; + + if ((res = mp_add(a, b, r)) != MP_OKAY) { + return res; + } + if (mp_cmp(r, &meth->irr) >= 0) { + return mp_sub(r, &meth->irr, r); + } + return res; +} + +/* Negates a field element. Assumes that 0 <= a < meth->irr */ +mp_err +ec_GFp_neg(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + /* PRE: 0 <= a < p = meth->irr POST: 0 <= r < p, r = -a (mod p) */ + + if (mp_cmp_z(a) == 0) { + mp_zero(r); + return MP_OKAY; + } + return mp_sub(&meth->irr, a, r); +} + +/* Subtracts two field elements. Assumes that 0 <= a, b < meth->irr */ +mp_err +ec_GFp_sub(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + /* PRE: 0 <= a, b < p = meth->irr POST: 0 <= r < p, r = a - b (mod p) */ + res = mp_sub(a, b, r); + if (res == MP_RANGE) { + MP_CHECKOK(mp_sub(b, a, r)); + if (mp_cmp_z(r) < 0) { + MP_CHECKOK(mp_add(r, &meth->irr, r)); + } + MP_CHECKOK(ec_GFp_neg(r, r, meth)); + } + if (mp_cmp_z(r) < 0) { + MP_CHECKOK(mp_add(r, &meth->irr, r)); + } + CLEANUP: + return res; +} +/* + * Inline adds for small curve lengths. + */ +/* 3 words */ +mp_err +ec_GFp_add_3(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a0 = 0, a1 = 0, a2 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0; + mp_digit carry; + + switch(MP_USED(a)) { + case 3: + a2 = MP_DIGIT(a,2); + case 2: + a1 = MP_DIGIT(a,1); + case 1: + a0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 3: + r2 = MP_DIGIT(b,2); + case 2: + r1 = MP_DIGIT(b,1); + case 1: + r0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(a0, r0, r0, 0, carry); + MP_ADD_CARRY(a1, r1, r1, carry, carry); + MP_ADD_CARRY(a2, r2, r2, carry, carry); +#else + __asm__ ( + "xorq %3,%3 \n\t" + "addq %4,%0 \n\t" + "adcq %5,%1 \n\t" + "adcq %6,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(carry) + : "r" (a0), "r" (a1), "r" (a2), + "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + + MP_CHECKOK(s_mp_pad(r, 3)); + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 3; + + /* Do quick 'subract' if we've gone over + * (add the 2's complement of the curve field) */ + a2 = MP_DIGIT(&meth->irr,2); + if (carry || r2 > a2 || + ((r2 == a2) && mp_cmp(r,&meth->irr) != MP_LT)) { + a1 = MP_DIGIT(&meth->irr,1); + a0 = MP_DIGIT(&meth->irr,0); +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, a0, r0, 0, carry); + MP_SUB_BORROW(r1, a1, r1, carry, carry); + MP_SUB_BORROW(r2, a2, r2, carry, carry); +#else + __asm__ ( + "subq %3,%0 \n\t" + "sbbq %4,%1 \n\t" + "sbbq %5,%2 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2) + : "r" (a0), "r" (a1), "r" (a2), + "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + } + + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 4 words */ +mp_err +ec_GFp_add_4(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a0 = 0, a1 = 0, a2 = 0, a3 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0; + mp_digit carry; + + switch(MP_USED(a)) { + case 4: + a3 = MP_DIGIT(a,3); + case 3: + a2 = MP_DIGIT(a,2); + case 2: + a1 = MP_DIGIT(a,1); + case 1: + a0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 4: + r3 = MP_DIGIT(b,3); + case 3: + r2 = MP_DIGIT(b,2); + case 2: + r1 = MP_DIGIT(b,1); + case 1: + r0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(a0, r0, r0, 0, carry); + MP_ADD_CARRY(a1, r1, r1, carry, carry); + MP_ADD_CARRY(a2, r2, r2, carry, carry); + MP_ADD_CARRY(a3, r3, r3, carry, carry); +#else + __asm__ ( + "xorq %4,%4 \n\t" + "addq %5,%0 \n\t" + "adcq %6,%1 \n\t" + "adcq %7,%2 \n\t" + "adcq %8,%3 \n\t" + "adcq $0,%4 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3), "=r"(carry) + : "r" (a0), "r" (a1), "r" (a2), "r" (a3), + "0" (r0), "1" (r1), "2" (r2), "3" (r3) + : "%cc" ); +#endif + + MP_CHECKOK(s_mp_pad(r, 4)); + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 4; + + /* Do quick 'subract' if we've gone over + * (add the 2's complement of the curve field) */ + a3 = MP_DIGIT(&meth->irr,3); + if (carry || r3 > a3 || + ((r3 == a3) && mp_cmp(r,&meth->irr) != MP_LT)) { + a2 = MP_DIGIT(&meth->irr,2); + a1 = MP_DIGIT(&meth->irr,1); + a0 = MP_DIGIT(&meth->irr,0); +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, a0, r0, 0, carry); + MP_SUB_BORROW(r1, a1, r1, carry, carry); + MP_SUB_BORROW(r2, a2, r2, carry, carry); + MP_SUB_BORROW(r3, a3, r3, carry, carry); +#else + __asm__ ( + "subq %4,%0 \n\t" + "sbbq %5,%1 \n\t" + "sbbq %6,%2 \n\t" + "sbbq %7,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3) + : "r" (a0), "r" (a1), "r" (a2), "r" (a3), + "0" (r0), "1" (r1), "2" (r2), "3" (r3) + : "%cc" ); +#endif + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + } + + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 5 words */ +mp_err +ec_GFp_add_5(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a0 = 0, a1 = 0, a2 = 0, a3 = 0, a4 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0, r4 = 0; + mp_digit carry; + + switch(MP_USED(a)) { + case 5: + a4 = MP_DIGIT(a,4); + case 4: + a3 = MP_DIGIT(a,3); + case 3: + a2 = MP_DIGIT(a,2); + case 2: + a1 = MP_DIGIT(a,1); + case 1: + a0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 5: + r4 = MP_DIGIT(b,4); + case 4: + r3 = MP_DIGIT(b,3); + case 3: + r2 = MP_DIGIT(b,2); + case 2: + r1 = MP_DIGIT(b,1); + case 1: + r0 = MP_DIGIT(b,0); + } + + MP_ADD_CARRY(a0, r0, r0, 0, carry); + MP_ADD_CARRY(a1, r1, r1, carry, carry); + MP_ADD_CARRY(a2, r2, r2, carry, carry); + MP_ADD_CARRY(a3, r3, r3, carry, carry); + MP_ADD_CARRY(a4, r4, r4, carry, carry); + + MP_CHECKOK(s_mp_pad(r, 5)); + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 5; + + /* Do quick 'subract' if we've gone over + * (add the 2's complement of the curve field) */ + a4 = MP_DIGIT(&meth->irr,4); + if (carry || r4 > a4 || + ((r4 == a4) && mp_cmp(r,&meth->irr) != MP_LT)) { + a3 = MP_DIGIT(&meth->irr,3); + a2 = MP_DIGIT(&meth->irr,2); + a1 = MP_DIGIT(&meth->irr,1); + a0 = MP_DIGIT(&meth->irr,0); + MP_SUB_BORROW(r0, a0, r0, 0, carry); + MP_SUB_BORROW(r1, a1, r1, carry, carry); + MP_SUB_BORROW(r2, a2, r2, carry, carry); + MP_SUB_BORROW(r3, a3, r3, carry, carry); + MP_SUB_BORROW(r4, a4, r4, carry, carry); + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + } + + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 6 words */ +mp_err +ec_GFp_add_6(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a0 = 0, a1 = 0, a2 = 0, a3 = 0, a4 = 0, a5 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0, r4 = 0, r5 = 0; + mp_digit carry; + + switch(MP_USED(a)) { + case 6: + a5 = MP_DIGIT(a,5); + case 5: + a4 = MP_DIGIT(a,4); + case 4: + a3 = MP_DIGIT(a,3); + case 3: + a2 = MP_DIGIT(a,2); + case 2: + a1 = MP_DIGIT(a,1); + case 1: + a0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 6: + r5 = MP_DIGIT(b,5); + case 5: + r4 = MP_DIGIT(b,4); + case 4: + r3 = MP_DIGIT(b,3); + case 3: + r2 = MP_DIGIT(b,2); + case 2: + r1 = MP_DIGIT(b,1); + case 1: + r0 = MP_DIGIT(b,0); + } + + MP_ADD_CARRY(a0, r0, r0, 0, carry); + MP_ADD_CARRY(a1, r1, r1, carry, carry); + MP_ADD_CARRY(a2, r2, r2, carry, carry); + MP_ADD_CARRY(a3, r3, r3, carry, carry); + MP_ADD_CARRY(a4, r4, r4, carry, carry); + MP_ADD_CARRY(a5, r5, r5, carry, carry); + + MP_CHECKOK(s_mp_pad(r, 6)); + MP_DIGIT(r, 5) = r5; + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 6; + + /* Do quick 'subract' if we've gone over + * (add the 2's complement of the curve field) */ + a5 = MP_DIGIT(&meth->irr,5); + if (carry || r5 > a5 || + ((r5 == a5) && mp_cmp(r,&meth->irr) != MP_LT)) { + a4 = MP_DIGIT(&meth->irr,4); + a3 = MP_DIGIT(&meth->irr,3); + a2 = MP_DIGIT(&meth->irr,2); + a1 = MP_DIGIT(&meth->irr,1); + a0 = MP_DIGIT(&meth->irr,0); + MP_SUB_BORROW(r0, a0, r0, 0, carry); + MP_SUB_BORROW(r1, a1, r1, carry, carry); + MP_SUB_BORROW(r2, a2, r2, carry, carry); + MP_SUB_BORROW(r3, a3, r3, carry, carry); + MP_SUB_BORROW(r4, a4, r4, carry, carry); + MP_SUB_BORROW(r5, a5, r5, carry, carry); + MP_DIGIT(r, 5) = r5; + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + } + + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* + * The following subraction functions do in-line subractions based + * on our curve size. + * + * ... 3 words + */ +mp_err +ec_GFp_sub_3(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit b0 = 0, b1 = 0, b2 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0; + mp_digit borrow; + + switch(MP_USED(a)) { + case 3: + r2 = MP_DIGIT(a,2); + case 2: + r1 = MP_DIGIT(a,1); + case 1: + r0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 3: + b2 = MP_DIGIT(b,2); + case 2: + b1 = MP_DIGIT(b,1); + case 1: + b0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, b0, r0, 0, borrow); + MP_SUB_BORROW(r1, b1, r1, borrow, borrow); + MP_SUB_BORROW(r2, b2, r2, borrow, borrow); +#else + __asm__ ( + "xorq %3,%3 \n\t" + "subq %4,%0 \n\t" + "sbbq %5,%1 \n\t" + "sbbq %6,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r" (borrow) + : "r" (b0), "r" (b1), "r" (b2), + "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + + /* Do quick 'add' if we've gone under 0 + * (subtract the 2's complement of the curve field) */ + if (borrow) { + b2 = MP_DIGIT(&meth->irr,2); + b1 = MP_DIGIT(&meth->irr,1); + b0 = MP_DIGIT(&meth->irr,0); +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(b0, r0, r0, 0, borrow); + MP_ADD_CARRY(b1, r1, r1, borrow, borrow); + MP_ADD_CARRY(b2, r2, r2, borrow, borrow); +#else + __asm__ ( + "addq %3,%0 \n\t" + "adcq %4,%1 \n\t" + "adcq %5,%2 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2) + : "r" (b0), "r" (b1), "r" (b2), + "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + } + +#ifdef MPI_AMD64_ADD + /* compiler fakeout? */ + if ((r2 == b0) && (r1 == b0) && (r0 == b0)) { + MP_CHECKOK(s_mp_pad(r, 4)); + } +#endif + MP_CHECKOK(s_mp_pad(r, 3)); + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 3; + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 4 words */ +mp_err +ec_GFp_sub_4(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit b0 = 0, b1 = 0, b2 = 0, b3 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0; + mp_digit borrow; + + switch(MP_USED(a)) { + case 4: + r3 = MP_DIGIT(a,3); + case 3: + r2 = MP_DIGIT(a,2); + case 2: + r1 = MP_DIGIT(a,1); + case 1: + r0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 4: + b3 = MP_DIGIT(b,3); + case 3: + b2 = MP_DIGIT(b,2); + case 2: + b1 = MP_DIGIT(b,1); + case 1: + b0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, b0, r0, 0, borrow); + MP_SUB_BORROW(r1, b1, r1, borrow, borrow); + MP_SUB_BORROW(r2, b2, r2, borrow, borrow); + MP_SUB_BORROW(r3, b3, r3, borrow, borrow); +#else + __asm__ ( + "xorq %4,%4 \n\t" + "subq %5,%0 \n\t" + "sbbq %6,%1 \n\t" + "sbbq %7,%2 \n\t" + "sbbq %8,%3 \n\t" + "adcq $0,%4 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3), "=r" (borrow) + : "r" (b0), "r" (b1), "r" (b2), "r" (b3), + "0" (r0), "1" (r1), "2" (r2), "3" (r3) + : "%cc" ); +#endif + + /* Do quick 'add' if we've gone under 0 + * (subtract the 2's complement of the curve field) */ + if (borrow) { + b3 = MP_DIGIT(&meth->irr,3); + b2 = MP_DIGIT(&meth->irr,2); + b1 = MP_DIGIT(&meth->irr,1); + b0 = MP_DIGIT(&meth->irr,0); +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(b0, r0, r0, 0, borrow); + MP_ADD_CARRY(b1, r1, r1, borrow, borrow); + MP_ADD_CARRY(b2, r2, r2, borrow, borrow); + MP_ADD_CARRY(b3, r3, r3, borrow, borrow); +#else + __asm__ ( + "addq %4,%0 \n\t" + "adcq %5,%1 \n\t" + "adcq %6,%2 \n\t" + "adcq %7,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3) + : "r" (b0), "r" (b1), "r" (b2), "r" (b3), + "0" (r0), "1" (r1), "2" (r2), "3" (r3) + : "%cc" ); +#endif + } +#ifdef MPI_AMD64_ADD + /* compiler fakeout? */ + if ((r3 == b0) && (r1 == b0) && (r0 == b0)) { + MP_CHECKOK(s_mp_pad(r, 4)); + } +#endif + MP_CHECKOK(s_mp_pad(r, 4)); + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 4; + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 5 words */ +mp_err +ec_GFp_sub_5(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit b0 = 0, b1 = 0, b2 = 0, b3 = 0, b4 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0, r4 = 0; + mp_digit borrow; + + switch(MP_USED(a)) { + case 5: + r4 = MP_DIGIT(a,4); + case 4: + r3 = MP_DIGIT(a,3); + case 3: + r2 = MP_DIGIT(a,2); + case 2: + r1 = MP_DIGIT(a,1); + case 1: + r0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 5: + b4 = MP_DIGIT(b,4); + case 4: + b3 = MP_DIGIT(b,3); + case 3: + b2 = MP_DIGIT(b,2); + case 2: + b1 = MP_DIGIT(b,1); + case 1: + b0 = MP_DIGIT(b,0); + } + + MP_SUB_BORROW(r0, b0, r0, 0, borrow); + MP_SUB_BORROW(r1, b1, r1, borrow, borrow); + MP_SUB_BORROW(r2, b2, r2, borrow, borrow); + MP_SUB_BORROW(r3, b3, r3, borrow, borrow); + MP_SUB_BORROW(r4, b4, r4, borrow, borrow); + + /* Do quick 'add' if we've gone under 0 + * (subtract the 2's complement of the curve field) */ + if (borrow) { + b4 = MP_DIGIT(&meth->irr,4); + b3 = MP_DIGIT(&meth->irr,3); + b2 = MP_DIGIT(&meth->irr,2); + b1 = MP_DIGIT(&meth->irr,1); + b0 = MP_DIGIT(&meth->irr,0); + MP_ADD_CARRY(b0, r0, r0, 0, borrow); + MP_ADD_CARRY(b1, r1, r1, borrow, borrow); + MP_ADD_CARRY(b2, r2, r2, borrow, borrow); + MP_ADD_CARRY(b3, r3, r3, borrow, borrow); + } + MP_CHECKOK(s_mp_pad(r, 5)); + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 5; + s_mp_clamp(r); + + CLEANUP: + return res; +} + +/* 6 words */ +mp_err +ec_GFp_sub_6(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit b0 = 0, b1 = 0, b2 = 0, b3 = 0, b4 = 0, b5 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0, r3 = 0, r4 = 0, r5 = 0; + mp_digit borrow; + + switch(MP_USED(a)) { + case 6: + r5 = MP_DIGIT(a,5); + case 5: + r4 = MP_DIGIT(a,4); + case 4: + r3 = MP_DIGIT(a,3); + case 3: + r2 = MP_DIGIT(a,2); + case 2: + r1 = MP_DIGIT(a,1); + case 1: + r0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 6: + b5 = MP_DIGIT(b,5); + case 5: + b4 = MP_DIGIT(b,4); + case 4: + b3 = MP_DIGIT(b,3); + case 3: + b2 = MP_DIGIT(b,2); + case 2: + b1 = MP_DIGIT(b,1); + case 1: + b0 = MP_DIGIT(b,0); + } + + MP_SUB_BORROW(r0, b0, r0, 0, borrow); + MP_SUB_BORROW(r1, b1, r1, borrow, borrow); + MP_SUB_BORROW(r2, b2, r2, borrow, borrow); + MP_SUB_BORROW(r3, b3, r3, borrow, borrow); + MP_SUB_BORROW(r4, b4, r4, borrow, borrow); + MP_SUB_BORROW(r5, b5, r5, borrow, borrow); + + /* Do quick 'add' if we've gone under 0 + * (subtract the 2's complement of the curve field) */ + if (borrow) { + b5 = MP_DIGIT(&meth->irr,5); + b4 = MP_DIGIT(&meth->irr,4); + b3 = MP_DIGIT(&meth->irr,3); + b2 = MP_DIGIT(&meth->irr,2); + b1 = MP_DIGIT(&meth->irr,1); + b0 = MP_DIGIT(&meth->irr,0); + MP_ADD_CARRY(b0, r0, r0, 0, borrow); + MP_ADD_CARRY(b1, r1, r1, borrow, borrow); + MP_ADD_CARRY(b2, r2, r2, borrow, borrow); + MP_ADD_CARRY(b3, r3, r3, borrow, borrow); + MP_ADD_CARRY(b4, r4, r4, borrow, borrow); + } + + MP_CHECKOK(s_mp_pad(r, 6)); + MP_DIGIT(r, 5) = r5; + MP_DIGIT(r, 4) = r4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 6; + s_mp_clamp(r); + + CLEANUP: + return res; +} + + +/* Reduces an integer to a field element. */ +mp_err +ec_GFp_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + return mp_mod(a, &meth->irr, r); +} + +/* Multiplies two field elements. */ +mp_err +ec_GFp_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + return mp_mulmod(a, b, &meth->irr, r); +} + +/* Squares a field element. */ +mp_err +ec_GFp_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + return mp_sqrmod(a, &meth->irr, r); +} + +/* Divides two field elements. If a is NULL, then returns the inverse of + * b. */ +mp_err +ec_GFp_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_int t; + + /* If a is NULL, then return the inverse of b, otherwise return a/b. */ + if (a == NULL) { + return mp_invmod(b, &meth->irr, r); + } else { + /* MPI doesn't support divmod, so we implement it using invmod and + * mulmod. */ + MP_CHECKOK(mp_init(&t, FLAG(b))); + MP_CHECKOK(mp_invmod(b, &meth->irr, &t)); + MP_CHECKOK(mp_mulmod(a, &t, &meth->irr, r)); + CLEANUP: + mp_clear(&t); + return res; + } +} + +/* Wrapper functions for generic binary polynomial field arithmetic. */ + +/* Adds two field elements. */ +mp_err +ec_GF2m_add(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + return mp_badd(a, b, r); +} + +/* Negates a field element. Note that for binary polynomial fields, the + * negation of a field element is the field element itself. */ +mp_err +ec_GF2m_neg(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + if (a == r) { + return MP_OKAY; + } else { + return mp_copy(a, r); + } +} + +/* Reduces a binary polynomial to a field element. */ +mp_err +ec_GF2m_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + return mp_bmod(a, meth->irr_arr, r); +} + +/* Multiplies two field elements. */ +mp_err +ec_GF2m_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + return mp_bmulmod(a, b, meth->irr_arr, r); +} + +/* Squares a field element. */ +mp_err +ec_GF2m_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + return mp_bsqrmod(a, meth->irr_arr, r); +} + +/* Divides two field elements. If a is NULL, then returns the inverse of + * b. */ +mp_err +ec_GF2m_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_int t; + + /* If a is NULL, then return the inverse of b, otherwise return a/b. */ + if (a == NULL) { + /* The GF(2^m) portion of MPI doesn't support invmod, so we + * compute 1/b. */ + MP_CHECKOK(mp_init(&t, FLAG(b))); + MP_CHECKOK(mp_set_int(&t, 1)); + MP_CHECKOK(mp_bdivmod(&t, b, &meth->irr, meth->irr_arr, r)); + CLEANUP: + mp_clear(&t); + return res; + } else { + return mp_bdivmod(a, b, &meth->irr, meth->irr_arr, r); + } +} diff --git a/src/share/native/sun/security/ec/impl/ecl_mult.c b/src/share/native/sun/security/ec/impl/ecl_mult.c new file mode 100644 index 000000000..c5a01faba --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecl_mult.c @@ -0,0 +1,378 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi.h" +#include "mplogic.h" +#include "ecl.h" +#include "ecl-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Elliptic curve scalar-point multiplication. Computes R(x, y) = k * P(x, + * y). If x, y = NULL, then P is assumed to be the generator (base point) + * of the group of points on the elliptic curve. Input and output values + * are assumed to be NOT field-encoded. */ +mp_err +ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry) +{ + mp_err res = MP_OKAY; + mp_int kt; + + ARGCHK((k != NULL) && (group != NULL), MP_BADARG); + MP_DIGITS(&kt) = 0; + + /* want scalar to be less than or equal to group order */ + if (mp_cmp(k, &group->order) > 0) { + MP_CHECKOK(mp_init(&kt, FLAG(k))); + MP_CHECKOK(mp_mod(k, &group->order, &kt)); + } else { + MP_SIGN(&kt) = MP_ZPOS; + MP_USED(&kt) = MP_USED(k); + MP_ALLOC(&kt) = MP_ALLOC(k); + MP_DIGITS(&kt) = MP_DIGITS(k); + } + + if ((px == NULL) || (py == NULL)) { + if (group->base_point_mul) { + MP_CHECKOK(group->base_point_mul(&kt, rx, ry, group)); + } else { + MP_CHECKOK(group-> + point_mul(&kt, &group->genx, &group->geny, rx, ry, + group)); + } + } else { + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(px, rx, group->meth)); + MP_CHECKOK(group->meth->field_enc(py, ry, group->meth)); + MP_CHECKOK(group->point_mul(&kt, rx, ry, rx, ry, group)); + } else { + MP_CHECKOK(group->point_mul(&kt, px, py, rx, ry, group)); + } + } + if (group->meth->field_dec) { + MP_CHECKOK(group->meth->field_dec(rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_dec(ry, ry, group->meth)); + } + + CLEANUP: + if (MP_DIGITS(&kt) != MP_DIGITS(k)) { + mp_clear(&kt); + } + return res; +} + +/* Elliptic curve scalar-point multiplication. Computes R(x, y) = k1 * G + + * k2 * P(x, y), where G is the generator (base point) of the group of + * points on the elliptic curve. Allows k1 = NULL or { k2, P } = NULL. + * Input and output values are assumed to be NOT field-encoded. */ +mp_err +ec_pts_mul_basic(const mp_int *k1, const mp_int *k2, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int sx, sy; + + ARGCHK(group != NULL, MP_BADARG); + ARGCHK(!((k1 == NULL) + && ((k2 == NULL) || (px == NULL) + || (py == NULL))), MP_BADARG); + + /* if some arguments are not defined used ECPoint_mul */ + if (k1 == NULL) { + return ECPoint_mul(group, k2, px, py, rx, ry); + } else if ((k2 == NULL) || (px == NULL) || (py == NULL)) { + return ECPoint_mul(group, k1, NULL, NULL, rx, ry); + } + + MP_DIGITS(&sx) = 0; + MP_DIGITS(&sy) = 0; + MP_CHECKOK(mp_init(&sx, FLAG(k1))); + MP_CHECKOK(mp_init(&sy, FLAG(k1))); + + MP_CHECKOK(ECPoint_mul(group, k1, NULL, NULL, &sx, &sy)); + MP_CHECKOK(ECPoint_mul(group, k2, px, py, rx, ry)); + + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(&sx, &sx, group->meth)); + MP_CHECKOK(group->meth->field_enc(&sy, &sy, group->meth)); + MP_CHECKOK(group->meth->field_enc(rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_enc(ry, ry, group->meth)); + } + + MP_CHECKOK(group->point_add(&sx, &sy, rx, ry, rx, ry, group)); + + if (group->meth->field_dec) { + MP_CHECKOK(group->meth->field_dec(rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_dec(ry, ry, group->meth)); + } + + CLEANUP: + mp_clear(&sx); + mp_clear(&sy); + return res; +} + +/* Elliptic curve scalar-point multiplication. Computes R(x, y) = k1 * G + + * k2 * P(x, y), where G is the generator (base point) of the group of + * points on the elliptic curve. Allows k1 = NULL or { k2, P } = NULL. + * Input and output values are assumed to be NOT field-encoded. Uses + * algorithm 15 (simultaneous multiple point multiplication) from Brown, + * Hankerson, Lopez, Menezes. Software Implementation of the NIST + * Elliptic Curves over Prime Fields. */ +mp_err +ec_pts_mul_simul_w2(const mp_int *k1, const mp_int *k2, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int precomp[4][4][2]; + const mp_int *a, *b; + int i, j; + int ai, bi, d; + + ARGCHK(group != NULL, MP_BADARG); + ARGCHK(!((k1 == NULL) + && ((k2 == NULL) || (px == NULL) + || (py == NULL))), MP_BADARG); + + /* if some arguments are not defined used ECPoint_mul */ + if (k1 == NULL) { + return ECPoint_mul(group, k2, px, py, rx, ry); + } else if ((k2 == NULL) || (px == NULL) || (py == NULL)) { + return ECPoint_mul(group, k1, NULL, NULL, rx, ry); + } + + /* initialize precomputation table */ + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + MP_DIGITS(&precomp[i][j][0]) = 0; + MP_DIGITS(&precomp[i][j][1]) = 0; + } + } + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + MP_CHECKOK( mp_init_size(&precomp[i][j][0], + ECL_MAX_FIELD_SIZE_DIGITS, FLAG(k1)) ); + MP_CHECKOK( mp_init_size(&precomp[i][j][1], + ECL_MAX_FIELD_SIZE_DIGITS, FLAG(k1)) ); + } + } + + /* fill precomputation table */ + /* assign {k1, k2} = {a, b} such that len(a) >= len(b) */ + if (mpl_significant_bits(k1) < mpl_significant_bits(k2)) { + a = k2; + b = k1; + if (group->meth->field_enc) { + MP_CHECKOK(group->meth-> + field_enc(px, &precomp[1][0][0], group->meth)); + MP_CHECKOK(group->meth-> + field_enc(py, &precomp[1][0][1], group->meth)); + } else { + MP_CHECKOK(mp_copy(px, &precomp[1][0][0])); + MP_CHECKOK(mp_copy(py, &precomp[1][0][1])); + } + MP_CHECKOK(mp_copy(&group->genx, &precomp[0][1][0])); + MP_CHECKOK(mp_copy(&group->geny, &precomp[0][1][1])); + } else { + a = k1; + b = k2; + MP_CHECKOK(mp_copy(&group->genx, &precomp[1][0][0])); + MP_CHECKOK(mp_copy(&group->geny, &precomp[1][0][1])); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth-> + field_enc(px, &precomp[0][1][0], group->meth)); + MP_CHECKOK(group->meth-> + field_enc(py, &precomp[0][1][1], group->meth)); + } else { + MP_CHECKOK(mp_copy(px, &precomp[0][1][0])); + MP_CHECKOK(mp_copy(py, &precomp[0][1][1])); + } + } + /* precompute [*][0][*] */ + mp_zero(&precomp[0][0][0]); + mp_zero(&precomp[0][0][1]); + MP_CHECKOK(group-> + point_dbl(&precomp[1][0][0], &precomp[1][0][1], + &precomp[2][0][0], &precomp[2][0][1], group)); + MP_CHECKOK(group-> + point_add(&precomp[1][0][0], &precomp[1][0][1], + &precomp[2][0][0], &precomp[2][0][1], + &precomp[3][0][0], &precomp[3][0][1], group)); + /* precompute [*][1][*] */ + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][1][0], &precomp[0][1][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][1][0], &precomp[i][1][1], group)); + } + /* precompute [*][2][*] */ + MP_CHECKOK(group-> + point_dbl(&precomp[0][1][0], &precomp[0][1][1], + &precomp[0][2][0], &precomp[0][2][1], group)); + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][2][0], &precomp[0][2][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][2][0], &precomp[i][2][1], group)); + } + /* precompute [*][3][*] */ + MP_CHECKOK(group-> + point_add(&precomp[0][1][0], &precomp[0][1][1], + &precomp[0][2][0], &precomp[0][2][1], + &precomp[0][3][0], &precomp[0][3][1], group)); + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][3][0], &precomp[0][3][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][3][0], &precomp[i][3][1], group)); + } + + d = (mpl_significant_bits(a) + 1) / 2; + + /* R = inf */ + mp_zero(rx); + mp_zero(ry); + + for (i = d - 1; i >= 0; i--) { + ai = MP_GET_BIT(a, 2 * i + 1); + ai <<= 1; + ai |= MP_GET_BIT(a, 2 * i); + bi = MP_GET_BIT(b, 2 * i + 1); + bi <<= 1; + bi |= MP_GET_BIT(b, 2 * i); + /* R = 2^2 * R */ + MP_CHECKOK(group->point_dbl(rx, ry, rx, ry, group)); + MP_CHECKOK(group->point_dbl(rx, ry, rx, ry, group)); + /* R = R + (ai * A + bi * B) */ + MP_CHECKOK(group-> + point_add(rx, ry, &precomp[ai][bi][0], + &precomp[ai][bi][1], rx, ry, group)); + } + + if (group->meth->field_dec) { + MP_CHECKOK(group->meth->field_dec(rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_dec(ry, ry, group->meth)); + } + + CLEANUP: + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + mp_clear(&precomp[i][j][0]); + mp_clear(&precomp[i][j][1]); + } + } + return res; +} + +/* Elliptic curve scalar-point multiplication. Computes R(x, y) = k1 * G + + * k2 * P(x, y), where G is the generator (base point) of the group of + * points on the elliptic curve. Allows k1 = NULL or { k2, P } = NULL. + * Input and output values are assumed to be NOT field-encoded. */ +mp_err +ECPoints_mul(const ECGroup *group, const mp_int *k1, const mp_int *k2, + const mp_int *px, const mp_int *py, mp_int *rx, mp_int *ry) +{ + mp_err res = MP_OKAY; + mp_int k1t, k2t; + const mp_int *k1p, *k2p; + + MP_DIGITS(&k1t) = 0; + MP_DIGITS(&k2t) = 0; + + ARGCHK(group != NULL, MP_BADARG); + + /* want scalar to be less than or equal to group order */ + if (k1 != NULL) { + if (mp_cmp(k1, &group->order) >= 0) { + MP_CHECKOK(mp_init(&k1t, FLAG(k1))); + MP_CHECKOK(mp_mod(k1, &group->order, &k1t)); + k1p = &k1t; + } else { + k1p = k1; + } + } else { + k1p = k1; + } + if (k2 != NULL) { + if (mp_cmp(k2, &group->order) >= 0) { + MP_CHECKOK(mp_init(&k2t, FLAG(k2))); + MP_CHECKOK(mp_mod(k2, &group->order, &k2t)); + k2p = &k2t; + } else { + k2p = k2; + } + } else { + k2p = k2; + } + + /* if points_mul is defined, then use it */ + if (group->points_mul) { + res = group->points_mul(k1p, k2p, px, py, rx, ry, group); + } else { + res = ec_pts_mul_simul_w2(k1p, k2p, px, py, rx, ry, group); + } + + CLEANUP: + mp_clear(&k1t); + mp_clear(&k2t); + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ecp.h b/src/share/native/sun/security/ec/impl/ecp.h new file mode 100644 index 000000000..5e045ba63 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp.h @@ -0,0 +1,160 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ECP_H +#define _ECP_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecl-priv.h" + +/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */ +mp_err ec_GFp_pt_is_inf_aff(const mp_int *px, const mp_int *py); + +/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */ +mp_err ec_GFp_pt_set_inf_aff(mp_int *px, mp_int *py); + +/* Computes R = P + Q where R is (rx, ry), P is (px, py) and Q is (qx, + * qy). Uses affine coordinates. */ +mp_err ec_GFp_pt_add_aff(const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Computes R = P - Q. Uses affine coordinates. */ +mp_err ec_GFp_pt_sub_aff(const mp_int *px, const mp_int *py, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Computes R = 2P. Uses affine coordinates. */ +mp_err ec_GFp_pt_dbl_aff(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group); + +/* Validates a point on a GFp curve. */ +mp_err ec_GFp_validate_point(const mp_int *px, const mp_int *py, const ECGroup *group); + +#ifdef ECL_ENABLE_GFP_PT_MUL_AFF +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the prime that + * determines the field GFp. Uses affine coordinates. */ +mp_err ec_GFp_pt_mul_aff(const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); +#endif + +/* Converts a point P(px, py) from affine coordinates to Jacobian + * projective coordinates R(rx, ry, rz). */ +mp_err ec_GFp_pt_aff2jac(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, mp_int *rz, const ECGroup *group); + +/* Converts a point P(px, py, pz) from Jacobian projective coordinates to + * affine coordinates R(rx, ry). */ +mp_err ec_GFp_pt_jac2aff(const mp_int *px, const mp_int *py, + const mp_int *pz, mp_int *rx, mp_int *ry, + const ECGroup *group); + +/* Checks if point P(px, py, pz) is at infinity. Uses Jacobian + * coordinates. */ +mp_err ec_GFp_pt_is_inf_jac(const mp_int *px, const mp_int *py, + const mp_int *pz); + +/* Sets P(px, py, pz) to be the point at infinity. Uses Jacobian + * coordinates. */ +mp_err ec_GFp_pt_set_inf_jac(mp_int *px, mp_int *py, mp_int *pz); + +/* Computes R = P + Q where R is (rx, ry, rz), P is (px, py, pz) and Q is + * (qx, qy, qz). Uses Jacobian coordinates. */ +mp_err ec_GFp_pt_add_jac_aff(const mp_int *px, const mp_int *py, + const mp_int *pz, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + mp_int *rz, const ECGroup *group); + +/* Computes R = 2P. Uses Jacobian coordinates. */ +mp_err ec_GFp_pt_dbl_jac(const mp_int *px, const mp_int *py, + const mp_int *pz, mp_int *rx, mp_int *ry, + mp_int *rz, const ECGroup *group); + +#ifdef ECL_ENABLE_GFP_PT_MUL_JAC +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the prime that + * determines the field GFp. Uses Jacobian coordinates. */ +mp_err ec_GFp_pt_mul_jac(const mp_int *n, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); +#endif + +/* Computes R(x, y) = k1 * G + k2 * P(x, y), where G is the generator + * (base point) of the group of points on the elliptic curve. Allows k1 = + * NULL or { k2, P } = NULL. Implemented using mixed Jacobian-affine + * coordinates. Input and output values are assumed to be NOT + * field-encoded and are in affine form. */ +mp_err + ec_GFp_pts_mul_jac(const mp_int *k1, const mp_int *k2, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group); + +/* Computes R = nP where R is (rx, ry) and P is the base point. Elliptic + * curve points P and R can be identical. Uses mixed Modified-Jacobian + * co-ordinates for doubling and Chudnovsky Jacobian coordinates for + * additions. Assumes input is already field-encoded using field_enc, and + * returns output that is still field-encoded. Uses 5-bit window NAF + * method (algorithm 11) for scalar-point multiplication from Brown, + * Hankerson, Lopez, Menezes. Software Implementation of the NIST Elliptic + * Curves Over Prime Fields. */ +mp_err + ec_GFp_pt_mul_jm_wNAF(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group); + +#endif /* _ECP_H */ diff --git a/src/share/native/sun/security/ec/impl/ecp_192.c b/src/share/native/sun/security/ec/impl/ecp_192.c new file mode 100644 index 000000000..f2c62a40e --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_192.c @@ -0,0 +1,538 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +#define ECP192_DIGITS ECL_CURVE_DIGITS(192) + +/* Fast modular reduction for p192 = 2^192 - 2^64 - 1. a can be r. Uses + * algorithm 7 from Brown, Hankerson, Lopez, Menezes. Software + * Implementation of the NIST Elliptic Curves over Prime Fields. */ +mp_err +ec_GFp_nistp192_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_size a_used = MP_USED(a); + mp_digit r3; +#ifndef MPI_AMD64_ADD + mp_digit carry; +#endif +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a5a = 0, a5b = 0, a4a = 0, a4b = 0, a3a = 0, a3b = 0; + mp_digit r0a, r0b, r1a, r1b, r2a, r2b; +#else + mp_digit a5 = 0, a4 = 0, a3 = 0; + mp_digit r0, r1, r2; +#endif + + /* reduction not needed if a is not larger than field size */ + if (a_used < ECP192_DIGITS) { + if (a == r) { + return MP_OKAY; + } + return mp_copy(a, r); + } + + /* for polynomials larger than twice the field size, use regular + * reduction */ + if (a_used > ECP192_DIGITS*2) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { + /* copy out upper words of a */ + +#ifdef ECL_THIRTY_TWO_BIT + + /* in all the math below, + * nXb is most signifiant, nXa is least significant */ + switch (a_used) { + case 12: + a5b = MP_DIGIT(a, 11); + case 11: + a5a = MP_DIGIT(a, 10); + case 10: + a4b = MP_DIGIT(a, 9); + case 9: + a4a = MP_DIGIT(a, 8); + case 8: + a3b = MP_DIGIT(a, 7); + case 7: + a3a = MP_DIGIT(a, 6); + } + + + r2b= MP_DIGIT(a, 5); + r2a= MP_DIGIT(a, 4); + r1b = MP_DIGIT(a, 3); + r1a = MP_DIGIT(a, 2); + r0b = MP_DIGIT(a, 1); + r0a = MP_DIGIT(a, 0); + + /* implement r = (a2,a1,a0)+(a5,a5,a5)+(a4,a4,0)+(0,a3,a3) */ + MP_ADD_CARRY(r0a, a3a, r0a, 0, carry); + MP_ADD_CARRY(r0b, a3b, r0b, carry, carry); + MP_ADD_CARRY(r1a, a3a, r1a, carry, carry); + MP_ADD_CARRY(r1b, a3b, r1b, carry, carry); + MP_ADD_CARRY(r2a, a4a, r2a, carry, carry); + MP_ADD_CARRY(r2b, a4b, r2b, carry, carry); + r3 = carry; carry = 0; + MP_ADD_CARRY(r0a, a5a, r0a, 0, carry); + MP_ADD_CARRY(r0b, a5b, r0b, carry, carry); + MP_ADD_CARRY(r1a, a5a, r1a, carry, carry); + MP_ADD_CARRY(r1b, a5b, r1b, carry, carry); + MP_ADD_CARRY(r2a, a5a, r2a, carry, carry); + MP_ADD_CARRY(r2b, a5b, r2b, carry, carry); + r3 += carry; + MP_ADD_CARRY(r1a, a4a, r1a, 0, carry); + MP_ADD_CARRY(r1b, a4b, r1b, carry, carry); + MP_ADD_CARRY(r2a, 0, r2a, carry, carry); + MP_ADD_CARRY(r2b, 0, r2b, carry, carry); + r3 += carry; + + /* reduce out the carry */ + while (r3) { + MP_ADD_CARRY(r0a, r3, r0a, 0, carry); + MP_ADD_CARRY(r0b, 0, r0b, carry, carry); + MP_ADD_CARRY(r1a, r3, r1a, carry, carry); + MP_ADD_CARRY(r1b, 0, r1b, carry, carry); + MP_ADD_CARRY(r2a, 0, r2a, carry, carry); + MP_ADD_CARRY(r2b, 0, r2b, carry, carry); + r3 = carry; + } + + /* check for final reduction */ + /* + * our field is 0xffffffffffffffff, 0xfffffffffffffffe, + * 0xffffffffffffffff. That means we can only be over and need + * one more reduction + * if r2 == 0xffffffffffffffffff (same as r2+1 == 0) + * and + * r1 == 0xffffffffffffffffff or + * r1 == 0xfffffffffffffffffe and r0 = 0xfffffffffffffffff + * In all cases, we subtract the field (or add the 2's + * complement value (1,1,0)). (r0, r1, r2) + */ + if (((r2b == 0xffffffff) && (r2a == 0xffffffff) + && (r1b == 0xffffffff) ) && + ((r1a == 0xffffffff) || + (r1a == 0xfffffffe) && (r0a == 0xffffffff) && + (r0b == 0xffffffff)) ) { + /* do a quick subtract */ + MP_ADD_CARRY(r0a, 1, r0a, 0, carry); + r0b += carry; + r1a = r1b = r2a = r2b = 0; + } + + /* set the lower words of r */ + if (a != r) { + MP_CHECKOK(s_mp_pad(r, 6)); + } + MP_DIGIT(r, 5) = r2b; + MP_DIGIT(r, 4) = r2a; + MP_DIGIT(r, 3) = r1b; + MP_DIGIT(r, 2) = r1a; + MP_DIGIT(r, 1) = r0b; + MP_DIGIT(r, 0) = r0a; + MP_USED(r) = 6; +#else + switch (a_used) { + case 6: + a5 = MP_DIGIT(a, 5); + case 5: + a4 = MP_DIGIT(a, 4); + case 4: + a3 = MP_DIGIT(a, 3); + } + + r2 = MP_DIGIT(a, 2); + r1 = MP_DIGIT(a, 1); + r0 = MP_DIGIT(a, 0); + + /* implement r = (a2,a1,a0)+(a5,a5,a5)+(a4,a4,0)+(0,a3,a3) */ +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(r0, a3, r0, 0, carry); + MP_ADD_CARRY(r1, a3, r1, carry, carry); + MP_ADD_CARRY(r2, a4, r2, carry, carry); + r3 = carry; + MP_ADD_CARRY(r0, a5, r0, 0, carry); + MP_ADD_CARRY(r1, a5, r1, carry, carry); + MP_ADD_CARRY(r2, a5, r2, carry, carry); + r3 += carry; + MP_ADD_CARRY(r1, a4, r1, 0, carry); + MP_ADD_CARRY(r2, 0, r2, carry, carry); + r3 += carry; + +#else + r2 = MP_DIGIT(a, 2); + r1 = MP_DIGIT(a, 1); + r0 = MP_DIGIT(a, 0); + + /* set the lower words of r */ + __asm__ ( + "xorq %3,%3 \n\t" + "addq %4,%0 \n\t" + "adcq %4,%1 \n\t" + "adcq %5,%2 \n\t" + "adcq $0,%3 \n\t" + "addq %6,%0 \n\t" + "adcq %6,%1 \n\t" + "adcq %6,%2 \n\t" + "adcq $0,%3 \n\t" + "addq %5,%1 \n\t" + "adcq $0,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3), "=r"(a3), + "=r"(a4), "=r"(a5) + : "0" (r0), "1" (r1), "2" (r2), "3" (r3), + "4" (a3), "5" (a4), "6"(a5) + : "%cc" ); +#endif + + /* reduce out the carry */ + while (r3) { +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(r0, r3, r0, 0, carry); + MP_ADD_CARRY(r1, r3, r1, carry, carry); + MP_ADD_CARRY(r2, 0, r2, carry, carry); + r3 = carry; +#else + a3=r3; + __asm__ ( + "xorq %3,%3 \n\t" + "addq %4,%0 \n\t" + "adcq %4,%1 \n\t" + "adcq $0,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(r3), "=r"(a3) + : "0" (r0), "1" (r1), "2" (r2), "3" (r3), "4"(a3) + : "%cc" ); +#endif + } + + /* check for final reduction */ + /* + * our field is 0xffffffffffffffff, 0xfffffffffffffffe, + * 0xffffffffffffffff. That means we can only be over and need + * one more reduction + * if r2 == 0xffffffffffffffffff (same as r2+1 == 0) + * and + * r1 == 0xffffffffffffffffff or + * r1 == 0xfffffffffffffffffe and r0 = 0xfffffffffffffffff + * In all cases, we subtract the field (or add the 2's + * complement value (1,1,0)). (r0, r1, r2) + */ + if (r3 || ((r2 == MP_DIGIT_MAX) && + ((r1 == MP_DIGIT_MAX) || + ((r1 == (MP_DIGIT_MAX-1)) && (r0 == MP_DIGIT_MAX))))) { + /* do a quick subtract */ + r0++; + r1 = r2 = 0; + } + /* set the lower words of r */ + if (a != r) { + MP_CHECKOK(s_mp_pad(r, 3)); + } + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_USED(r) = 3; +#endif + } + + CLEANUP: + return res; +} + +#ifndef ECL_THIRTY_TWO_BIT +/* Compute the sum of 192 bit curves. Do the work in-line since the + * number of words are so small, we don't want to overhead of mp function + * calls. Uses optimized modular reduction for p192. + */ +mp_err +ec_GFp_nistp192_add(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit a0 = 0, a1 = 0, a2 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0; + mp_digit carry; + + switch(MP_USED(a)) { + case 3: + a2 = MP_DIGIT(a,2); + case 2: + a1 = MP_DIGIT(a,1); + case 1: + a0 = MP_DIGIT(a,0); + } + switch(MP_USED(b)) { + case 3: + r2 = MP_DIGIT(b,2); + case 2: + r1 = MP_DIGIT(b,1); + case 1: + r0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(a0, r0, r0, 0, carry); + MP_ADD_CARRY(a1, r1, r1, carry, carry); + MP_ADD_CARRY(a2, r2, r2, carry, carry); +#else + __asm__ ( + "xorq %3,%3 \n\t" + "addq %4,%0 \n\t" + "adcq %5,%1 \n\t" + "adcq %6,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(carry) + : "r" (a0), "r" (a1), "r" (a2), "0" (r0), + "1" (r1), "2" (r2) + : "%cc" ); +#endif + + /* Do quick 'subract' if we've gone over + * (add the 2's complement of the curve field) */ + if (carry || ((r2 == MP_DIGIT_MAX) && + ((r1 == MP_DIGIT_MAX) || + ((r1 == (MP_DIGIT_MAX-1)) && (r0 == MP_DIGIT_MAX))))) { +#ifndef MPI_AMD64_ADD + MP_ADD_CARRY(r0, 1, r0, 0, carry); + MP_ADD_CARRY(r1, 1, r1, carry, carry); + MP_ADD_CARRY(r2, 0, r2, carry, carry); +#else + __asm__ ( + "addq $1,%0 \n\t" + "adcq $1,%1 \n\t" + "adcq $0,%2 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2) + : "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + } + + + MP_CHECKOK(s_mp_pad(r, 3)); + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 3; + s_mp_clamp(r); + + + CLEANUP: + return res; +} + +/* Compute the diff of 192 bit curves. Do the work in-line since the + * number of words are so small, we don't want to overhead of mp function + * calls. Uses optimized modular reduction for p192. + */ +mp_err +ec_GFp_nistp192_sub(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_digit b0 = 0, b1 = 0, b2 = 0; + mp_digit r0 = 0, r1 = 0, r2 = 0; + mp_digit borrow; + + switch(MP_USED(a)) { + case 3: + r2 = MP_DIGIT(a,2); + case 2: + r1 = MP_DIGIT(a,1); + case 1: + r0 = MP_DIGIT(a,0); + } + + switch(MP_USED(b)) { + case 3: + b2 = MP_DIGIT(b,2); + case 2: + b1 = MP_DIGIT(b,1); + case 1: + b0 = MP_DIGIT(b,0); + } + +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, b0, r0, 0, borrow); + MP_SUB_BORROW(r1, b1, r1, borrow, borrow); + MP_SUB_BORROW(r2, b2, r2, borrow, borrow); +#else + __asm__ ( + "xorq %3,%3 \n\t" + "subq %4,%0 \n\t" + "sbbq %5,%1 \n\t" + "sbbq %6,%2 \n\t" + "adcq $0,%3 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2), "=r"(borrow) + : "r" (b0), "r" (b1), "r" (b2), "0" (r0), + "1" (r1), "2" (r2) + : "%cc" ); +#endif + + /* Do quick 'add' if we've gone under 0 + * (subtract the 2's complement of the curve field) */ + if (borrow) { +#ifndef MPI_AMD64_ADD + MP_SUB_BORROW(r0, 1, r0, 0, borrow); + MP_SUB_BORROW(r1, 1, r1, borrow, borrow); + MP_SUB_BORROW(r2, 0, r2, borrow, borrow); +#else + __asm__ ( + "subq $1,%0 \n\t" + "sbbq $1,%1 \n\t" + "sbbq $0,%2 \n\t" + : "=r"(r0), "=r"(r1), "=r"(r2) + : "0" (r0), "1" (r1), "2" (r2) + : "%cc" ); +#endif + } + + MP_CHECKOK(s_mp_pad(r, 3)); + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 3; + s_mp_clamp(r); + + CLEANUP: + return res; +} + +#endif + +/* Compute the square of polynomial a, reduce modulo p192. Store the + * result in r. r could be a. Uses optimized modular reduction for p192. + */ +mp_err +ec_GFp_nistp192_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_sqr(a, r)); + MP_CHECKOK(ec_GFp_nistp192_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p192. + * Store the result in r. r could be a or b; a could be b. Uses + * optimized modular reduction for p192. */ +mp_err +ec_GFp_nistp192_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(ec_GFp_nistp192_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Divides two field elements. If a is NULL, then returns the inverse of + * b. */ +mp_err +ec_GFp_nistp192_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_int t; + + /* If a is NULL, then return the inverse of b, otherwise return a/b. */ + if (a == NULL) { + return mp_invmod(b, &meth->irr, r); + } else { + /* MPI doesn't support divmod, so we implement it using invmod and + * mulmod. */ + MP_CHECKOK(mp_init(&t, FLAG(b))); + MP_CHECKOK(mp_invmod(b, &meth->irr, &t)); + MP_CHECKOK(mp_mul(a, &t, r)); + MP_CHECKOK(ec_GFp_nistp192_mod(r, r, meth)); + CLEANUP: + mp_clear(&t); + return res; + } +} + +/* Wire in fast field arithmetic and precomputation of base point for + * named curves. */ +mp_err +ec_group_set_gfp192(ECGroup *group, ECCurveName name) +{ + if (name == ECCurve_NIST_P192) { + group->meth->field_mod = &ec_GFp_nistp192_mod; + group->meth->field_mul = &ec_GFp_nistp192_mul; + group->meth->field_sqr = &ec_GFp_nistp192_sqr; + group->meth->field_div = &ec_GFp_nistp192_div; +#ifndef ECL_THIRTY_TWO_BIT + group->meth->field_add = &ec_GFp_nistp192_add; + group->meth->field_sub = &ec_GFp_nistp192_sub; +#endif + } + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_224.c b/src/share/native/sun/security/ec/impl/ecp_224.c new file mode 100644 index 000000000..1ea82fd78 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_224.c @@ -0,0 +1,394 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +#define ECP224_DIGITS ECL_CURVE_DIGITS(224) + +/* Fast modular reduction for p224 = 2^224 - 2^96 + 1. a can be r. Uses + * algorithm 7 from Brown, Hankerson, Lopez, Menezes. Software + * Implementation of the NIST Elliptic Curves over Prime Fields. */ +mp_err +ec_GFp_nistp224_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_size a_used = MP_USED(a); + + int r3b; + mp_digit carry; +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a6a = 0, a6b = 0, + a5a = 0, a5b = 0, a4a = 0, a4b = 0, a3a = 0, a3b = 0; + mp_digit r0a, r0b, r1a, r1b, r2a, r2b, r3a; +#else + mp_digit a6 = 0, a5 = 0, a4 = 0, a3b = 0, a5a = 0; + mp_digit a6b = 0, a6a_a5b = 0, a5b = 0, a5a_a4b = 0, a4a_a3b = 0; + mp_digit r0, r1, r2, r3; +#endif + + /* reduction not needed if a is not larger than field size */ + if (a_used < ECP224_DIGITS) { + if (a == r) return MP_OKAY; + return mp_copy(a, r); + } + /* for polynomials larger than twice the field size, use regular + * reduction */ + if (a_used > ECL_CURVE_DIGITS(224*2)) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { +#ifdef ECL_THIRTY_TWO_BIT + /* copy out upper words of a */ + switch (a_used) { + case 14: + a6b = MP_DIGIT(a, 13); + case 13: + a6a = MP_DIGIT(a, 12); + case 12: + a5b = MP_DIGIT(a, 11); + case 11: + a5a = MP_DIGIT(a, 10); + case 10: + a4b = MP_DIGIT(a, 9); + case 9: + a4a = MP_DIGIT(a, 8); + case 8: + a3b = MP_DIGIT(a, 7); + } + r3a = MP_DIGIT(a, 6); + r2b= MP_DIGIT(a, 5); + r2a= MP_DIGIT(a, 4); + r1b = MP_DIGIT(a, 3); + r1a = MP_DIGIT(a, 2); + r0b = MP_DIGIT(a, 1); + r0a = MP_DIGIT(a, 0); + + + /* implement r = (a3a,a2,a1,a0) + +(a5a, a4,a3b, 0) + +( 0, a6,a5b, 0) + -( 0 0, 0|a6b, a6a|a5b ) + -( a6b, a6a|a5b, a5a|a4b, a4a|a3b ) */ + MP_ADD_CARRY (r1b, a3b, r1b, 0, carry); + MP_ADD_CARRY (r2a, a4a, r2a, carry, carry); + MP_ADD_CARRY (r2b, a4b, r2b, carry, carry); + MP_ADD_CARRY (r3a, a5a, r3a, carry, carry); + r3b = carry; + MP_ADD_CARRY (r1b, a5b, r1b, 0, carry); + MP_ADD_CARRY (r2a, a6a, r2a, carry, carry); + MP_ADD_CARRY (r2b, a6b, r2b, carry, carry); + MP_ADD_CARRY (r3a, 0, r3a, carry, carry); + r3b += carry; + MP_SUB_BORROW(r0a, a3b, r0a, 0, carry); + MP_SUB_BORROW(r0b, a4a, r0b, carry, carry); + MP_SUB_BORROW(r1a, a4b, r1a, carry, carry); + MP_SUB_BORROW(r1b, a5a, r1b, carry, carry); + MP_SUB_BORROW(r2a, a5b, r2a, carry, carry); + MP_SUB_BORROW(r2b, a6a, r2b, carry, carry); + MP_SUB_BORROW(r3a, a6b, r3a, carry, carry); + r3b -= carry; + MP_SUB_BORROW(r0a, a5b, r0a, 0, carry); + MP_SUB_BORROW(r0b, a6a, r0b, carry, carry); + MP_SUB_BORROW(r1a, a6b, r1a, carry, carry); + if (carry) { + MP_SUB_BORROW(r1b, 0, r1b, carry, carry); + MP_SUB_BORROW(r2a, 0, r2a, carry, carry); + MP_SUB_BORROW(r2b, 0, r2b, carry, carry); + MP_SUB_BORROW(r3a, 0, r3a, carry, carry); + r3b -= carry; + } + + while (r3b > 0) { + int tmp; + MP_ADD_CARRY(r1b, r3b, r1b, 0, carry); + if (carry) { + MP_ADD_CARRY(r2a, 0, r2a, carry, carry); + MP_ADD_CARRY(r2b, 0, r2b, carry, carry); + MP_ADD_CARRY(r3a, 0, r3a, carry, carry); + } + tmp = carry; + MP_SUB_BORROW(r0a, r3b, r0a, 0, carry); + if (carry) { + MP_SUB_BORROW(r0b, 0, r0b, carry, carry); + MP_SUB_BORROW(r1a, 0, r1a, carry, carry); + MP_SUB_BORROW(r1b, 0, r1b, carry, carry); + MP_SUB_BORROW(r2a, 0, r2a, carry, carry); + MP_SUB_BORROW(r2b, 0, r2b, carry, carry); + MP_SUB_BORROW(r3a, 0, r3a, carry, carry); + tmp -= carry; + } + r3b = tmp; + } + + while (r3b < 0) { + mp_digit maxInt = MP_DIGIT_MAX; + MP_ADD_CARRY (r0a, 1, r0a, 0, carry); + MP_ADD_CARRY (r0b, 0, r0b, carry, carry); + MP_ADD_CARRY (r1a, 0, r1a, carry, carry); + MP_ADD_CARRY (r1b, maxInt, r1b, carry, carry); + MP_ADD_CARRY (r2a, maxInt, r2a, carry, carry); + MP_ADD_CARRY (r2b, maxInt, r2b, carry, carry); + MP_ADD_CARRY (r3a, maxInt, r3a, carry, carry); + r3b += carry; + } + /* check for final reduction */ + /* now the only way we are over is if the top 4 words are all ones */ + if ((r3a == MP_DIGIT_MAX) && (r2b == MP_DIGIT_MAX) + && (r2a == MP_DIGIT_MAX) && (r1b == MP_DIGIT_MAX) && + ((r1a != 0) || (r0b != 0) || (r0a != 0)) ) { + /* one last subraction */ + MP_SUB_BORROW(r0a, 1, r0a, 0, carry); + MP_SUB_BORROW(r0b, 0, r0b, carry, carry); + MP_SUB_BORROW(r1a, 0, r1a, carry, carry); + r1b = r2a = r2b = r3a = 0; + } + + + if (a != r) { + MP_CHECKOK(s_mp_pad(r, 7)); + } + /* set the lower words of r */ + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 7; + MP_DIGIT(r, 6) = r3a; + MP_DIGIT(r, 5) = r2b; + MP_DIGIT(r, 4) = r2a; + MP_DIGIT(r, 3) = r1b; + MP_DIGIT(r, 2) = r1a; + MP_DIGIT(r, 1) = r0b; + MP_DIGIT(r, 0) = r0a; +#else + /* copy out upper words of a */ + switch (a_used) { + case 7: + a6 = MP_DIGIT(a, 6); + a6b = a6 >> 32; + a6a_a5b = a6 << 32; + case 6: + a5 = MP_DIGIT(a, 5); + a5b = a5 >> 32; + a6a_a5b |= a5b; + a5b = a5b << 32; + a5a_a4b = a5 << 32; + a5a = a5 & 0xffffffff; + case 5: + a4 = MP_DIGIT(a, 4); + a5a_a4b |= a4 >> 32; + a4a_a3b = a4 << 32; + case 4: + a3b = MP_DIGIT(a, 3) >> 32; + a4a_a3b |= a3b; + a3b = a3b << 32; + } + + r3 = MP_DIGIT(a, 3) & 0xffffffff; + r2 = MP_DIGIT(a, 2); + r1 = MP_DIGIT(a, 1); + r0 = MP_DIGIT(a, 0); + + /* implement r = (a3a,a2,a1,a0) + +(a5a, a4,a3b, 0) + +( 0, a6,a5b, 0) + -( 0 0, 0|a6b, a6a|a5b ) + -( a6b, a6a|a5b, a5a|a4b, a4a|a3b ) */ + MP_ADD_CARRY (r1, a3b, r1, 0, carry); + MP_ADD_CARRY (r2, a4 , r2, carry, carry); + MP_ADD_CARRY (r3, a5a, r3, carry, carry); + MP_ADD_CARRY (r1, a5b, r1, 0, carry); + MP_ADD_CARRY (r2, a6 , r2, carry, carry); + MP_ADD_CARRY (r3, 0, r3, carry, carry); + + MP_SUB_BORROW(r0, a4a_a3b, r0, 0, carry); + MP_SUB_BORROW(r1, a5a_a4b, r1, carry, carry); + MP_SUB_BORROW(r2, a6a_a5b, r2, carry, carry); + MP_SUB_BORROW(r3, a6b , r3, carry, carry); + MP_SUB_BORROW(r0, a6a_a5b, r0, 0, carry); + MP_SUB_BORROW(r1, a6b , r1, carry, carry); + if (carry) { + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, 0, r3, carry, carry); + } + + + /* if the value is negative, r3 has a 2's complement + * high value */ + r3b = (int)(r3 >>32); + while (r3b > 0) { + r3 &= 0xffffffff; + MP_ADD_CARRY(r1,((mp_digit)r3b) << 32, r1, 0, carry); + if (carry) { + MP_ADD_CARRY(r2, 0, r2, carry, carry); + MP_ADD_CARRY(r3, 0, r3, carry, carry); + } + MP_SUB_BORROW(r0, r3b, r0, 0, carry); + if (carry) { + MP_SUB_BORROW(r1, 0, r1, carry, carry); + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, 0, r3, carry, carry); + } + r3b = (int)(r3 >>32); + } + + while (r3b < 0) { + MP_ADD_CARRY (r0, 1, r0, 0, carry); + MP_ADD_CARRY (r1, MP_DIGIT_MAX <<32, r1, carry, carry); + MP_ADD_CARRY (r2, MP_DIGIT_MAX, r2, carry, carry); + MP_ADD_CARRY (r3, MP_DIGIT_MAX >> 32, r3, carry, carry); + r3b = (int)(r3 >>32); + } + /* check for final reduction */ + /* now the only way we are over is if the top 4 words are all ones */ + if ((r3 == (MP_DIGIT_MAX >> 32)) && (r2 == MP_DIGIT_MAX) + && ((r1 & MP_DIGIT_MAX << 32)== MP_DIGIT_MAX << 32) && + ((r1 != MP_DIGIT_MAX << 32 ) || (r0 != 0)) ) { + /* one last subraction */ + MP_SUB_BORROW(r0, 1, r0, 0, carry); + MP_SUB_BORROW(r1, 0, r1, carry, carry); + r2 = r3 = 0; + } + + + if (a != r) { + MP_CHECKOK(s_mp_pad(r, 4)); + } + /* set the lower words of r */ + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 4; + MP_DIGIT(r, 3) = r3; + MP_DIGIT(r, 2) = r2; + MP_DIGIT(r, 1) = r1; + MP_DIGIT(r, 0) = r0; +#endif + } + + CLEANUP: + return res; +} + +/* Compute the square of polynomial a, reduce modulo p224. Store the + * result in r. r could be a. Uses optimized modular reduction for p224. + */ +mp_err +ec_GFp_nistp224_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_sqr(a, r)); + MP_CHECKOK(ec_GFp_nistp224_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p224. + * Store the result in r. r could be a or b; a could be b. Uses + * optimized modular reduction for p224. */ +mp_err +ec_GFp_nistp224_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(ec_GFp_nistp224_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Divides two field elements. If a is NULL, then returns the inverse of + * b. */ +mp_err +ec_GFp_nistp224_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_int t; + + /* If a is NULL, then return the inverse of b, otherwise return a/b. */ + if (a == NULL) { + return mp_invmod(b, &meth->irr, r); + } else { + /* MPI doesn't support divmod, so we implement it using invmod and + * mulmod. */ + MP_CHECKOK(mp_init(&t, FLAG(b))); + MP_CHECKOK(mp_invmod(b, &meth->irr, &t)); + MP_CHECKOK(mp_mul(a, &t, r)); + MP_CHECKOK(ec_GFp_nistp224_mod(r, r, meth)); + CLEANUP: + mp_clear(&t); + return res; + } +} + +/* Wire in fast field arithmetic and precomputation of base point for + * named curves. */ +mp_err +ec_group_set_gfp224(ECGroup *group, ECCurveName name) +{ + if (name == ECCurve_NIST_P224) { + group->meth->field_mod = &ec_GFp_nistp224_mod; + group->meth->field_mul = &ec_GFp_nistp224_mul; + group->meth->field_sqr = &ec_GFp_nistp224_sqr; + group->meth->field_div = &ec_GFp_nistp224_div; + } + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_256.c b/src/share/native/sun/security/ec/impl/ecp_256.c new file mode 100644 index 000000000..6f4de5be0 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_256.c @@ -0,0 +1,451 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Fast modular reduction for p256 = 2^256 - 2^224 + 2^192+ 2^96 - 1. a can be r. + * Uses algorithm 2.29 from Hankerson, Menezes, Vanstone. Guide to + * Elliptic Curve Cryptography. */ +mp_err +ec_GFp_nistp256_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_size a_used = MP_USED(a); + int a_bits = mpl_significant_bits(a); + mp_digit carry; + +#ifdef ECL_THIRTY_TWO_BIT + mp_digit a8=0, a9=0, a10=0, a11=0, a12=0, a13=0, a14=0, a15=0; + mp_digit r0, r1, r2, r3, r4, r5, r6, r7; + int r8; /* must be a signed value ! */ +#else + mp_digit a4=0, a5=0, a6=0, a7=0; + mp_digit a4h, a4l, a5h, a5l, a6h, a6l, a7h, a7l; + mp_digit r0, r1, r2, r3; + int r4; /* must be a signed value ! */ +#endif + /* for polynomials larger than twice the field size + * use regular reduction */ + if (a_bits < 256) { + if (a == r) return MP_OKAY; + return mp_copy(a,r); + } + if (a_bits > 512) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { + +#ifdef ECL_THIRTY_TWO_BIT + switch (a_used) { + case 16: + a15 = MP_DIGIT(a,15); + case 15: + a14 = MP_DIGIT(a,14); + case 14: + a13 = MP_DIGIT(a,13); + case 13: + a12 = MP_DIGIT(a,12); + case 12: + a11 = MP_DIGIT(a,11); + case 11: + a10 = MP_DIGIT(a,10); + case 10: + a9 = MP_DIGIT(a,9); + case 9: + a8 = MP_DIGIT(a,8); + } + + r0 = MP_DIGIT(a,0); + r1 = MP_DIGIT(a,1); + r2 = MP_DIGIT(a,2); + r3 = MP_DIGIT(a,3); + r4 = MP_DIGIT(a,4); + r5 = MP_DIGIT(a,5); + r6 = MP_DIGIT(a,6); + r7 = MP_DIGIT(a,7); + + /* sum 1 */ + MP_ADD_CARRY(r3, a11, r3, 0, carry); + MP_ADD_CARRY(r4, a12, r4, carry, carry); + MP_ADD_CARRY(r5, a13, r5, carry, carry); + MP_ADD_CARRY(r6, a14, r6, carry, carry); + MP_ADD_CARRY(r7, a15, r7, carry, carry); + r8 = carry; + MP_ADD_CARRY(r3, a11, r3, 0, carry); + MP_ADD_CARRY(r4, a12, r4, carry, carry); + MP_ADD_CARRY(r5, a13, r5, carry, carry); + MP_ADD_CARRY(r6, a14, r6, carry, carry); + MP_ADD_CARRY(r7, a15, r7, carry, carry); + r8 += carry; + /* sum 2 */ + MP_ADD_CARRY(r3, a12, r3, 0, carry); + MP_ADD_CARRY(r4, a13, r4, carry, carry); + MP_ADD_CARRY(r5, a14, r5, carry, carry); + MP_ADD_CARRY(r6, a15, r6, carry, carry); + MP_ADD_CARRY(r7, 0, r7, carry, carry); + r8 += carry; + /* combine last bottom of sum 3 with second sum 2 */ + MP_ADD_CARRY(r0, a8, r0, 0, carry); + MP_ADD_CARRY(r1, a9, r1, carry, carry); + MP_ADD_CARRY(r2, a10, r2, carry, carry); + MP_ADD_CARRY(r3, a12, r3, carry, carry); + MP_ADD_CARRY(r4, a13, r4, carry, carry); + MP_ADD_CARRY(r5, a14, r5, carry, carry); + MP_ADD_CARRY(r6, a15, r6, carry, carry); + MP_ADD_CARRY(r7, a15, r7, carry, carry); /* from sum 3 */ + r8 += carry; + /* sum 3 (rest of it)*/ + MP_ADD_CARRY(r6, a14, r6, 0, carry); + MP_ADD_CARRY(r7, 0, r7, carry, carry); + r8 += carry; + /* sum 4 (rest of it)*/ + MP_ADD_CARRY(r0, a9, r0, 0, carry); + MP_ADD_CARRY(r1, a10, r1, carry, carry); + MP_ADD_CARRY(r2, a11, r2, carry, carry); + MP_ADD_CARRY(r3, a13, r3, carry, carry); + MP_ADD_CARRY(r4, a14, r4, carry, carry); + MP_ADD_CARRY(r5, a15, r5, carry, carry); + MP_ADD_CARRY(r6, a13, r6, carry, carry); + MP_ADD_CARRY(r7, a8, r7, carry, carry); + r8 += carry; + /* diff 5 */ + MP_SUB_BORROW(r0, a11, r0, 0, carry); + MP_SUB_BORROW(r1, a12, r1, carry, carry); + MP_SUB_BORROW(r2, a13, r2, carry, carry); + MP_SUB_BORROW(r3, 0, r3, carry, carry); + MP_SUB_BORROW(r4, 0, r4, carry, carry); + MP_SUB_BORROW(r5, 0, r5, carry, carry); + MP_SUB_BORROW(r6, a8, r6, carry, carry); + MP_SUB_BORROW(r7, a10, r7, carry, carry); + r8 -= carry; + /* diff 6 */ + MP_SUB_BORROW(r0, a12, r0, 0, carry); + MP_SUB_BORROW(r1, a13, r1, carry, carry); + MP_SUB_BORROW(r2, a14, r2, carry, carry); + MP_SUB_BORROW(r3, a15, r3, carry, carry); + MP_SUB_BORROW(r4, 0, r4, carry, carry); + MP_SUB_BORROW(r5, 0, r5, carry, carry); + MP_SUB_BORROW(r6, a9, r6, carry, carry); + MP_SUB_BORROW(r7, a11, r7, carry, carry); + r8 -= carry; + /* diff 7 */ + MP_SUB_BORROW(r0, a13, r0, 0, carry); + MP_SUB_BORROW(r1, a14, r1, carry, carry); + MP_SUB_BORROW(r2, a15, r2, carry, carry); + MP_SUB_BORROW(r3, a8, r3, carry, carry); + MP_SUB_BORROW(r4, a9, r4, carry, carry); + MP_SUB_BORROW(r5, a10, r5, carry, carry); + MP_SUB_BORROW(r6, 0, r6, carry, carry); + MP_SUB_BORROW(r7, a12, r7, carry, carry); + r8 -= carry; + /* diff 8 */ + MP_SUB_BORROW(r0, a14, r0, 0, carry); + MP_SUB_BORROW(r1, a15, r1, carry, carry); + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, a9, r3, carry, carry); + MP_SUB_BORROW(r4, a10, r4, carry, carry); + MP_SUB_BORROW(r5, a11, r5, carry, carry); + MP_SUB_BORROW(r6, 0, r6, carry, carry); + MP_SUB_BORROW(r7, a13, r7, carry, carry); + r8 -= carry; + + /* reduce the overflows */ + while (r8 > 0) { + mp_digit r8_d = r8; + MP_ADD_CARRY(r0, r8_d, r0, 0, carry); + MP_ADD_CARRY(r1, 0, r1, carry, carry); + MP_ADD_CARRY(r2, 0, r2, carry, carry); + MP_ADD_CARRY(r3, -r8_d, r3, carry, carry); + MP_ADD_CARRY(r4, MP_DIGIT_MAX, r4, carry, carry); + MP_ADD_CARRY(r5, MP_DIGIT_MAX, r5, carry, carry); + MP_ADD_CARRY(r6, -(r8_d+1), r6, carry, carry); + MP_ADD_CARRY(r7, (r8_d-1), r7, carry, carry); + r8 = carry; + } + + /* reduce the underflows */ + while (r8 < 0) { + mp_digit r8_d = -r8; + MP_SUB_BORROW(r0, r8_d, r0, 0, carry); + MP_SUB_BORROW(r1, 0, r1, carry, carry); + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, -r8_d, r3, carry, carry); + MP_SUB_BORROW(r4, MP_DIGIT_MAX, r4, carry, carry); + MP_SUB_BORROW(r5, MP_DIGIT_MAX, r5, carry, carry); + MP_SUB_BORROW(r6, -(r8_d+1), r6, carry, carry); + MP_SUB_BORROW(r7, (r8_d-1), r7, carry, carry); + r8 = -carry; + } + if (a != r) { + MP_CHECKOK(s_mp_pad(r,8)); + } + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 8; + + MP_DIGIT(r,7) = r7; + MP_DIGIT(r,6) = r6; + MP_DIGIT(r,5) = r5; + MP_DIGIT(r,4) = r4; + MP_DIGIT(r,3) = r3; + MP_DIGIT(r,2) = r2; + MP_DIGIT(r,1) = r1; + MP_DIGIT(r,0) = r0; + + /* final reduction if necessary */ + if ((r7 == MP_DIGIT_MAX) && + ((r6 > 1) || ((r6 == 1) && + (r5 || r4 || r3 || + ((r2 == MP_DIGIT_MAX) && (r1 == MP_DIGIT_MAX) + && (r0 == MP_DIGIT_MAX)))))) { + MP_CHECKOK(mp_sub(r, &meth->irr, r)); + } +#ifdef notdef + + + /* smooth the negatives */ + while (MP_SIGN(r) != MP_ZPOS) { + MP_CHECKOK(mp_add(r, &meth->irr, r)); + } + while (MP_USED(r) > 8) { + MP_CHECKOK(mp_sub(r, &meth->irr, r)); + } + + /* final reduction if necessary */ + if (MP_DIGIT(r,7) >= MP_DIGIT(&meth->irr,7)) { + if (mp_cmp(r,&meth->irr) != MP_LT) { + MP_CHECKOK(mp_sub(r, &meth->irr, r)); + } + } +#endif + s_mp_clamp(r); +#else + switch (a_used) { + case 8: + a7 = MP_DIGIT(a,7); + case 7: + a6 = MP_DIGIT(a,6); + case 6: + a5 = MP_DIGIT(a,5); + case 5: + a4 = MP_DIGIT(a,4); + } + a7l = a7 << 32; + a7h = a7 >> 32; + a6l = a6 << 32; + a6h = a6 >> 32; + a5l = a5 << 32; + a5h = a5 >> 32; + a4l = a4 << 32; + a4h = a4 >> 32; + r3 = MP_DIGIT(a,3); + r2 = MP_DIGIT(a,2); + r1 = MP_DIGIT(a,1); + r0 = MP_DIGIT(a,0); + + /* sum 1 */ + MP_ADD_CARRY(r1, a5h << 32, r1, 0, carry); + MP_ADD_CARRY(r2, a6, r2, carry, carry); + MP_ADD_CARRY(r3, a7, r3, carry, carry); + r4 = carry; + MP_ADD_CARRY(r1, a5h << 32, r1, 0, carry); + MP_ADD_CARRY(r2, a6, r2, carry, carry); + MP_ADD_CARRY(r3, a7, r3, carry, carry); + r4 += carry; + /* sum 2 */ + MP_ADD_CARRY(r1, a6l, r1, 0, carry); + MP_ADD_CARRY(r2, a6h | a7l, r2, carry, carry); + MP_ADD_CARRY(r3, a7h, r3, carry, carry); + r4 += carry; + MP_ADD_CARRY(r1, a6l, r1, 0, carry); + MP_ADD_CARRY(r2, a6h | a7l, r2, carry, carry); + MP_ADD_CARRY(r3, a7h, r3, carry, carry); + r4 += carry; + + /* sum 3 */ + MP_ADD_CARRY(r0, a4, r0, 0, carry); + MP_ADD_CARRY(r1, a5l >> 32, r1, carry, carry); + MP_ADD_CARRY(r2, 0, r2, carry, carry); + MP_ADD_CARRY(r3, a7, r3, carry, carry); + r4 += carry; + /* sum 4 */ + MP_ADD_CARRY(r0, a4h | a5l, r0, 0, carry); + MP_ADD_CARRY(r1, a5h|(a6h<<32), r1, carry, carry); + MP_ADD_CARRY(r2, a7, r2, carry, carry); + MP_ADD_CARRY(r3, a6h | a4l, r3, carry, carry); + r4 += carry; + /* diff 5 */ + MP_SUB_BORROW(r0, a5h | a6l, r0, 0, carry); + MP_SUB_BORROW(r1, a6h, r1, carry, carry); + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, (a4l>>32)|a5l,r3, carry, carry); + r4 -= carry; + /* diff 6 */ + MP_SUB_BORROW(r0, a6, r0, 0, carry); + MP_SUB_BORROW(r1, a7, r1, carry, carry); + MP_SUB_BORROW(r2, 0, r2, carry, carry); + MP_SUB_BORROW(r3, a4h|(a5h<<32),r3, carry, carry); + r4 -= carry; + /* diff 7 */ + MP_SUB_BORROW(r0, a6h|a7l, r0, 0, carry); + MP_SUB_BORROW(r1, a7h|a4l, r1, carry, carry); + MP_SUB_BORROW(r2, a4h|a5l, r2, carry, carry); + MP_SUB_BORROW(r3, a6l, r3, carry, carry); + r4 -= carry; + /* diff 8 */ + MP_SUB_BORROW(r0, a7, r0, 0, carry); + MP_SUB_BORROW(r1, a4h<<32, r1, carry, carry); + MP_SUB_BORROW(r2, a5, r2, carry, carry); + MP_SUB_BORROW(r3, a6h<<32, r3, carry, carry); + r4 -= carry; + + /* reduce the overflows */ + while (r4 > 0) { + mp_digit r4_long = r4; + mp_digit r4l = (r4_long << 32); + MP_ADD_CARRY(r0, r4_long, r0, 0, carry); + MP_ADD_CARRY(r1, -r4l, r1, carry, carry); + MP_ADD_CARRY(r2, MP_DIGIT_MAX, r2, carry, carry); + MP_ADD_CARRY(r3, r4l-r4_long-1,r3, carry, carry); + r4 = carry; + } + + /* reduce the underflows */ + while (r4 < 0) { + mp_digit r4_long = -r4; + mp_digit r4l = (r4_long << 32); + MP_SUB_BORROW(r0, r4_long, r0, 0, carry); + MP_SUB_BORROW(r1, -r4l, r1, carry, carry); + MP_SUB_BORROW(r2, MP_DIGIT_MAX, r2, carry, carry); + MP_SUB_BORROW(r3, r4l-r4_long-1,r3, carry, carry); + r4 = -carry; + } + + if (a != r) { + MP_CHECKOK(s_mp_pad(r,4)); + } + MP_SIGN(r) = MP_ZPOS; + MP_USED(r) = 4; + + MP_DIGIT(r,3) = r3; + MP_DIGIT(r,2) = r2; + MP_DIGIT(r,1) = r1; + MP_DIGIT(r,0) = r0; + + /* final reduction if necessary */ + if ((r3 > 0xFFFFFFFF00000001ULL) || + ((r3 == 0xFFFFFFFF00000001ULL) && + (r2 || (r1 >> 32)|| + (r1 == 0xFFFFFFFFULL && r0 == MP_DIGIT_MAX)))) { + /* very rare, just use mp_sub */ + MP_CHECKOK(mp_sub(r, &meth->irr, r)); + } + + s_mp_clamp(r); +#endif + } + + CLEANUP: + return res; +} + +/* Compute the square of polynomial a, reduce modulo p256. Store the + * result in r. r could be a. Uses optimized modular reduction for p256. + */ +mp_err +ec_GFp_nistp256_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_sqr(a, r)); + MP_CHECKOK(ec_GFp_nistp256_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p256. + * Store the result in r. r could be a or b; a could be b. Uses + * optimized modular reduction for p256. */ +mp_err +ec_GFp_nistp256_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(ec_GFp_nistp256_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Wire in fast field arithmetic and precomputation of base point for + * named curves. */ +mp_err +ec_group_set_gfp256(ECGroup *group, ECCurveName name) +{ + if (name == ECCurve_NIST_P256) { + group->meth->field_mod = &ec_GFp_nistp256_mod; + group->meth->field_mul = &ec_GFp_nistp256_mul; + group->meth->field_sqr = &ec_GFp_nistp256_sqr; + } + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_384.c b/src/share/native/sun/security/ec/impl/ecp_384.c new file mode 100644 index 000000000..93b9259da --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_384.c @@ -0,0 +1,315 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +/* Fast modular reduction for p384 = 2^384 - 2^128 - 2^96 + 2^32 - 1. a can be r. + * Uses algorithm 2.30 from Hankerson, Menezes, Vanstone. Guide to + * Elliptic Curve Cryptography. */ +mp_err +ec_GFp_nistp384_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + int a_bits = mpl_significant_bits(a); + int i; + + /* m1, m2 are statically-allocated mp_int of exactly the size we need */ + mp_int m[10]; + +#ifdef ECL_THIRTY_TWO_BIT + mp_digit s[10][12]; + for (i = 0; i < 10; i++) { + MP_SIGN(&m[i]) = MP_ZPOS; + MP_ALLOC(&m[i]) = 12; + MP_USED(&m[i]) = 12; + MP_DIGITS(&m[i]) = s[i]; + } +#else + mp_digit s[10][6]; + for (i = 0; i < 10; i++) { + MP_SIGN(&m[i]) = MP_ZPOS; + MP_ALLOC(&m[i]) = 6; + MP_USED(&m[i]) = 6; + MP_DIGITS(&m[i]) = s[i]; + } +#endif + +#ifdef ECL_THIRTY_TWO_BIT + /* for polynomials larger than twice the field size or polynomials + * not using all words, use regular reduction */ + if ((a_bits > 768) || (a_bits <= 736)) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { + for (i = 0; i < 12; i++) { + s[0][i] = MP_DIGIT(a, i); + } + s[1][0] = 0; + s[1][1] = 0; + s[1][2] = 0; + s[1][3] = 0; + s[1][4] = MP_DIGIT(a, 21); + s[1][5] = MP_DIGIT(a, 22); + s[1][6] = MP_DIGIT(a, 23); + s[1][7] = 0; + s[1][8] = 0; + s[1][9] = 0; + s[1][10] = 0; + s[1][11] = 0; + for (i = 0; i < 12; i++) { + s[2][i] = MP_DIGIT(a, i+12); + } + s[3][0] = MP_DIGIT(a, 21); + s[3][1] = MP_DIGIT(a, 22); + s[3][2] = MP_DIGIT(a, 23); + for (i = 3; i < 12; i++) { + s[3][i] = MP_DIGIT(a, i+9); + } + s[4][0] = 0; + s[4][1] = MP_DIGIT(a, 23); + s[4][2] = 0; + s[4][3] = MP_DIGIT(a, 20); + for (i = 4; i < 12; i++) { + s[4][i] = MP_DIGIT(a, i+8); + } + s[5][0] = 0; + s[5][1] = 0; + s[5][2] = 0; + s[5][3] = 0; + s[5][4] = MP_DIGIT(a, 20); + s[5][5] = MP_DIGIT(a, 21); + s[5][6] = MP_DIGIT(a, 22); + s[5][7] = MP_DIGIT(a, 23); + s[5][8] = 0; + s[5][9] = 0; + s[5][10] = 0; + s[5][11] = 0; + s[6][0] = MP_DIGIT(a, 20); + s[6][1] = 0; + s[6][2] = 0; + s[6][3] = MP_DIGIT(a, 21); + s[6][4] = MP_DIGIT(a, 22); + s[6][5] = MP_DIGIT(a, 23); + s[6][6] = 0; + s[6][7] = 0; + s[6][8] = 0; + s[6][9] = 0; + s[6][10] = 0; + s[6][11] = 0; + s[7][0] = MP_DIGIT(a, 23); + for (i = 1; i < 12; i++) { + s[7][i] = MP_DIGIT(a, i+11); + } + s[8][0] = 0; + s[8][1] = MP_DIGIT(a, 20); + s[8][2] = MP_DIGIT(a, 21); + s[8][3] = MP_DIGIT(a, 22); + s[8][4] = MP_DIGIT(a, 23); + s[8][5] = 0; + s[8][6] = 0; + s[8][7] = 0; + s[8][8] = 0; + s[8][9] = 0; + s[8][10] = 0; + s[8][11] = 0; + s[9][0] = 0; + s[9][1] = 0; + s[9][2] = 0; + s[9][3] = MP_DIGIT(a, 23); + s[9][4] = MP_DIGIT(a, 23); + s[9][5] = 0; + s[9][6] = 0; + s[9][7] = 0; + s[9][8] = 0; + s[9][9] = 0; + s[9][10] = 0; + s[9][11] = 0; + + MP_CHECKOK(mp_add(&m[0], &m[1], r)); + MP_CHECKOK(mp_add(r, &m[1], r)); + MP_CHECKOK(mp_add(r, &m[2], r)); + MP_CHECKOK(mp_add(r, &m[3], r)); + MP_CHECKOK(mp_add(r, &m[4], r)); + MP_CHECKOK(mp_add(r, &m[5], r)); + MP_CHECKOK(mp_add(r, &m[6], r)); + MP_CHECKOK(mp_sub(r, &m[7], r)); + MP_CHECKOK(mp_sub(r, &m[8], r)); + MP_CHECKOK(mp_submod(r, &m[9], &meth->irr, r)); + s_mp_clamp(r); + } +#else + /* for polynomials larger than twice the field size or polynomials + * not using all words, use regular reduction */ + if ((a_bits > 768) || (a_bits <= 736)) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { + for (i = 0; i < 6; i++) { + s[0][i] = MP_DIGIT(a, i); + } + s[1][0] = 0; + s[1][1] = 0; + s[1][2] = (MP_DIGIT(a, 10) >> 32) | (MP_DIGIT(a, 11) << 32); + s[1][3] = MP_DIGIT(a, 11) >> 32; + s[1][4] = 0; + s[1][5] = 0; + for (i = 0; i < 6; i++) { + s[2][i] = MP_DIGIT(a, i+6); + } + s[3][0] = (MP_DIGIT(a, 10) >> 32) | (MP_DIGIT(a, 11) << 32); + s[3][1] = (MP_DIGIT(a, 11) >> 32) | (MP_DIGIT(a, 6) << 32); + for (i = 2; i < 6; i++) { + s[3][i] = (MP_DIGIT(a, i+4) >> 32) | (MP_DIGIT(a, i+5) << 32); + } + s[4][0] = (MP_DIGIT(a, 11) >> 32) << 32; + s[4][1] = MP_DIGIT(a, 10) << 32; + for (i = 2; i < 6; i++) { + s[4][i] = MP_DIGIT(a, i+4); + } + s[5][0] = 0; + s[5][1] = 0; + s[5][2] = MP_DIGIT(a, 10); + s[5][3] = MP_DIGIT(a, 11); + s[5][4] = 0; + s[5][5] = 0; + s[6][0] = (MP_DIGIT(a, 10) << 32) >> 32; + s[6][1] = (MP_DIGIT(a, 10) >> 32) << 32; + s[6][2] = MP_DIGIT(a, 11); + s[6][3] = 0; + s[6][4] = 0; + s[6][5] = 0; + s[7][0] = (MP_DIGIT(a, 11) >> 32) | (MP_DIGIT(a, 6) << 32); + for (i = 1; i < 6; i++) { + s[7][i] = (MP_DIGIT(a, i+5) >> 32) | (MP_DIGIT(a, i+6) << 32); + } + s[8][0] = MP_DIGIT(a, 10) << 32; + s[8][1] = (MP_DIGIT(a, 10) >> 32) | (MP_DIGIT(a, 11) << 32); + s[8][2] = MP_DIGIT(a, 11) >> 32; + s[8][3] = 0; + s[8][4] = 0; + s[8][5] = 0; + s[9][0] = 0; + s[9][1] = (MP_DIGIT(a, 11) >> 32) << 32; + s[9][2] = MP_DIGIT(a, 11) >> 32; + s[9][3] = 0; + s[9][4] = 0; + s[9][5] = 0; + + MP_CHECKOK(mp_add(&m[0], &m[1], r)); + MP_CHECKOK(mp_add(r, &m[1], r)); + MP_CHECKOK(mp_add(r, &m[2], r)); + MP_CHECKOK(mp_add(r, &m[3], r)); + MP_CHECKOK(mp_add(r, &m[4], r)); + MP_CHECKOK(mp_add(r, &m[5], r)); + MP_CHECKOK(mp_add(r, &m[6], r)); + MP_CHECKOK(mp_sub(r, &m[7], r)); + MP_CHECKOK(mp_sub(r, &m[8], r)); + MP_CHECKOK(mp_submod(r, &m[9], &meth->irr, r)); + s_mp_clamp(r); + } +#endif + + CLEANUP: + return res; +} + +/* Compute the square of polynomial a, reduce modulo p384. Store the + * result in r. r could be a. Uses optimized modular reduction for p384. + */ +mp_err +ec_GFp_nistp384_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_sqr(a, r)); + MP_CHECKOK(ec_GFp_nistp384_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p384. + * Store the result in r. r could be a or b; a could be b. Uses + * optimized modular reduction for p384. */ +mp_err +ec_GFp_nistp384_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(ec_GFp_nistp384_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Wire in fast field arithmetic and precomputation of base point for + * named curves. */ +mp_err +ec_group_set_gfp384(ECGroup *group, ECCurveName name) +{ + if (name == ECCurve_NIST_P384) { + group->meth->field_mod = &ec_GFp_nistp384_mod; + group->meth->field_mul = &ec_GFp_nistp384_mul; + group->meth->field_sqr = &ec_GFp_nistp384_sqr; + } + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_521.c b/src/share/native/sun/security/ec/impl/ecp_521.c new file mode 100644 index 000000000..68dca16a7 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_521.c @@ -0,0 +1,192 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#ifndef _KERNEL +#include +#endif + +#define ECP521_DIGITS ECL_CURVE_DIGITS(521) + +/* Fast modular reduction for p521 = 2^521 - 1. a can be r. Uses + * algorithm 2.31 from Hankerson, Menezes, Vanstone. Guide to + * Elliptic Curve Cryptography. */ +mp_err +ec_GFp_nistp521_mod(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + int a_bits = mpl_significant_bits(a); + int i; + + /* m1, m2 are statically-allocated mp_int of exactly the size we need */ + mp_int m1; + + mp_digit s1[ECP521_DIGITS] = { 0 }; + + MP_SIGN(&m1) = MP_ZPOS; + MP_ALLOC(&m1) = ECP521_DIGITS; + MP_USED(&m1) = ECP521_DIGITS; + MP_DIGITS(&m1) = s1; + + if (a_bits < 521) { + if (a==r) return MP_OKAY; + return mp_copy(a, r); + } + /* for polynomials larger than twice the field size or polynomials + * not using all words, use regular reduction */ + if (a_bits > (521*2)) { + MP_CHECKOK(mp_mod(a, &meth->irr, r)); + } else { +#define FIRST_DIGIT (ECP521_DIGITS-1) + for (i = FIRST_DIGIT; i < MP_USED(a)-1; i++) { + s1[i-FIRST_DIGIT] = (MP_DIGIT(a, i) >> 9) + | (MP_DIGIT(a, 1+i) << (MP_DIGIT_BIT-9)); + } + s1[i-FIRST_DIGIT] = MP_DIGIT(a, i) >> 9; + + if ( a != r ) { + MP_CHECKOK(s_mp_pad(r,ECP521_DIGITS)); + for (i = 0; i < ECP521_DIGITS; i++) { + MP_DIGIT(r,i) = MP_DIGIT(a, i); + } + } + MP_USED(r) = ECP521_DIGITS; + MP_DIGIT(r,FIRST_DIGIT) &= 0x1FF; + + MP_CHECKOK(s_mp_add(r, &m1)); + if (MP_DIGIT(r, FIRST_DIGIT) & 0x200) { + MP_CHECKOK(s_mp_add_d(r,1)); + MP_DIGIT(r,FIRST_DIGIT) &= 0x1FF; + } + s_mp_clamp(r); + } + + CLEANUP: + return res; +} + +/* Compute the square of polynomial a, reduce modulo p521. Store the + * result in r. r could be a. Uses optimized modular reduction for p521. + */ +mp_err +ec_GFp_nistp521_sqr(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_sqr(a, r)); + MP_CHECKOK(ec_GFp_nistp521_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p521. + * Store the result in r. r could be a or b; a could be b. Uses + * optimized modular reduction for p521. */ +mp_err +ec_GFp_nistp521_mul(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(ec_GFp_nistp521_mod(r, r, meth)); + CLEANUP: + return res; +} + +/* Divides two field elements. If a is NULL, then returns the inverse of + * b. */ +mp_err +ec_GFp_nistp521_div(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + mp_int t; + + /* If a is NULL, then return the inverse of b, otherwise return a/b. */ + if (a == NULL) { + return mp_invmod(b, &meth->irr, r); + } else { + /* MPI doesn't support divmod, so we implement it using invmod and + * mulmod. */ + MP_CHECKOK(mp_init(&t, FLAG(b))); + MP_CHECKOK(mp_invmod(b, &meth->irr, &t)); + MP_CHECKOK(mp_mul(a, &t, r)); + MP_CHECKOK(ec_GFp_nistp521_mod(r, r, meth)); + CLEANUP: + mp_clear(&t); + return res; + } +} + +/* Wire in fast field arithmetic and precomputation of base point for + * named curves. */ +mp_err +ec_group_set_gfp521(ECGroup *group, ECCurveName name) +{ + if (name == ECCurve_NIST_P521) { + group->meth->field_mod = &ec_GFp_nistp521_mod; + group->meth->field_mul = &ec_GFp_nistp521_mul; + group->meth->field_sqr = &ec_GFp_nistp521_sqr; + group->meth->field_div = &ec_GFp_nistp521_div; + } + return MP_OKAY; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_aff.c b/src/share/native/sun/security/ec/impl/ecp_aff.c new file mode 100644 index 000000000..f8d88d4dc --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_aff.c @@ -0,0 +1,379 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * Bodo Moeller , + * Nils Larsch , and + * Lenka Fibikova , the OpenSSL Project + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mplogic.h" +#ifndef _KERNEL +#include +#endif + +/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */ +mp_err +ec_GFp_pt_is_inf_aff(const mp_int *px, const mp_int *py) +{ + + if ((mp_cmp_z(px) == 0) && (mp_cmp_z(py) == 0)) { + return MP_YES; + } else { + return MP_NO; + } + +} + +/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */ +mp_err +ec_GFp_pt_set_inf_aff(mp_int *px, mp_int *py) +{ + mp_zero(px); + mp_zero(py); + return MP_OKAY; +} + +/* Computes R = P + Q based on IEEE P1363 A.10.1. Elliptic curve points P, + * Q, and R can all be identical. Uses affine coordinates. Assumes input + * is already field-encoded using field_enc, and returns output that is + * still field-encoded. */ +mp_err +ec_GFp_pt_add_aff(const mp_int *px, const mp_int *py, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int lambda, temp, tempx, tempy; + + MP_DIGITS(&lambda) = 0; + MP_DIGITS(&temp) = 0; + MP_DIGITS(&tempx) = 0; + MP_DIGITS(&tempy) = 0; + MP_CHECKOK(mp_init(&lambda, FLAG(px))); + MP_CHECKOK(mp_init(&temp, FLAG(px))); + MP_CHECKOK(mp_init(&tempx, FLAG(px))); + MP_CHECKOK(mp_init(&tempy, FLAG(px))); + /* if P = inf, then R = Q */ + if (ec_GFp_pt_is_inf_aff(px, py) == 0) { + MP_CHECKOK(mp_copy(qx, rx)); + MP_CHECKOK(mp_copy(qy, ry)); + res = MP_OKAY; + goto CLEANUP; + } + /* if Q = inf, then R = P */ + if (ec_GFp_pt_is_inf_aff(qx, qy) == 0) { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + res = MP_OKAY; + goto CLEANUP; + } + /* if px != qx, then lambda = (py-qy) / (px-qx) */ + if (mp_cmp(px, qx) != 0) { + MP_CHECKOK(group->meth->field_sub(py, qy, &tempy, group->meth)); + MP_CHECKOK(group->meth->field_sub(px, qx, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_div(&tempy, &tempx, &lambda, group->meth)); + } else { + /* if py != qy or qy = 0, then R = inf */ + if (((mp_cmp(py, qy) != 0)) || (mp_cmp_z(qy) == 0)) { + mp_zero(rx); + mp_zero(ry); + res = MP_OKAY; + goto CLEANUP; + } + /* lambda = (3qx^2+a) / (2qy) */ + MP_CHECKOK(group->meth->field_sqr(qx, &tempx, group->meth)); + MP_CHECKOK(mp_set_int(&temp, 3)); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(&temp, &temp, group->meth)); + } + MP_CHECKOK(group->meth-> + field_mul(&tempx, &temp, &tempx, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&tempx, &group->curvea, &tempx, group->meth)); + MP_CHECKOK(mp_set_int(&temp, 2)); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(&temp, &temp, group->meth)); + } + MP_CHECKOK(group->meth->field_mul(qy, &temp, &tempy, group->meth)); + MP_CHECKOK(group->meth-> + field_div(&tempx, &tempy, &lambda, group->meth)); + } + /* rx = lambda^2 - px - qx */ + MP_CHECKOK(group->meth->field_sqr(&lambda, &tempx, group->meth)); + MP_CHECKOK(group->meth->field_sub(&tempx, px, &tempx, group->meth)); + MP_CHECKOK(group->meth->field_sub(&tempx, qx, &tempx, group->meth)); + /* ry = (x1-x2) * lambda - y1 */ + MP_CHECKOK(group->meth->field_sub(qx, &tempx, &tempy, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(&tempy, &lambda, &tempy, group->meth)); + MP_CHECKOK(group->meth->field_sub(&tempy, qy, &tempy, group->meth)); + MP_CHECKOK(mp_copy(&tempx, rx)); + MP_CHECKOK(mp_copy(&tempy, ry)); + + CLEANUP: + mp_clear(&lambda); + mp_clear(&temp); + mp_clear(&tempx); + mp_clear(&tempy); + return res; +} + +/* Computes R = P - Q. Elliptic curve points P, Q, and R can all be + * identical. Uses affine coordinates. Assumes input is already + * field-encoded using field_enc, and returns output that is still + * field-encoded. */ +mp_err +ec_GFp_pt_sub_aff(const mp_int *px, const mp_int *py, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int nqy; + + MP_DIGITS(&nqy) = 0; + MP_CHECKOK(mp_init(&nqy, FLAG(px))); + /* nqy = -qy */ + MP_CHECKOK(group->meth->field_neg(qy, &nqy, group->meth)); + res = group->point_add(px, py, qx, &nqy, rx, ry, group); + CLEANUP: + mp_clear(&nqy); + return res; +} + +/* Computes R = 2P. Elliptic curve points P and R can be identical. Uses + * affine coordinates. Assumes input is already field-encoded using + * field_enc, and returns output that is still field-encoded. */ +mp_err +ec_GFp_pt_dbl_aff(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, const ECGroup *group) +{ + return ec_GFp_pt_add_aff(px, py, px, py, rx, ry, group); +} + +/* by default, this routine is unused and thus doesn't need to be compiled */ +#ifdef ECL_ENABLE_GFP_PT_MUL_AFF +/* Computes R = nP based on IEEE P1363 A.10.3. Elliptic curve points P and + * R can be identical. Uses affine coordinates. Assumes input is already + * field-encoded using field_enc, and returns output that is still + * field-encoded. */ +mp_err +ec_GFp_pt_mul_aff(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int k, k3, qx, qy, sx, sy; + int b1, b3, i, l; + + MP_DIGITS(&k) = 0; + MP_DIGITS(&k3) = 0; + MP_DIGITS(&qx) = 0; + MP_DIGITS(&qy) = 0; + MP_DIGITS(&sx) = 0; + MP_DIGITS(&sy) = 0; + MP_CHECKOK(mp_init(&k)); + MP_CHECKOK(mp_init(&k3)); + MP_CHECKOK(mp_init(&qx)); + MP_CHECKOK(mp_init(&qy)); + MP_CHECKOK(mp_init(&sx)); + MP_CHECKOK(mp_init(&sy)); + + /* if n = 0 then r = inf */ + if (mp_cmp_z(n) == 0) { + mp_zero(rx); + mp_zero(ry); + res = MP_OKAY; + goto CLEANUP; + } + /* Q = P, k = n */ + MP_CHECKOK(mp_copy(px, &qx)); + MP_CHECKOK(mp_copy(py, &qy)); + MP_CHECKOK(mp_copy(n, &k)); + /* if n < 0 then Q = -Q, k = -k */ + if (mp_cmp_z(n) < 0) { + MP_CHECKOK(group->meth->field_neg(&qy, &qy, group->meth)); + MP_CHECKOK(mp_neg(&k, &k)); + } +#ifdef ECL_DEBUG /* basic double and add method */ + l = mpl_significant_bits(&k) - 1; + MP_CHECKOK(mp_copy(&qx, &sx)); + MP_CHECKOK(mp_copy(&qy, &sy)); + for (i = l - 1; i >= 0; i--) { + /* S = 2S */ + MP_CHECKOK(group->point_dbl(&sx, &sy, &sx, &sy, group)); + /* if k_i = 1, then S = S + Q */ + if (mpl_get_bit(&k, i) != 0) { + MP_CHECKOK(group-> + point_add(&sx, &sy, &qx, &qy, &sx, &sy, group)); + } + } +#else /* double and add/subtract method from + * standard */ + /* k3 = 3 * k */ + MP_CHECKOK(mp_set_int(&k3, 3)); + MP_CHECKOK(mp_mul(&k, &k3, &k3)); + /* S = Q */ + MP_CHECKOK(mp_copy(&qx, &sx)); + MP_CHECKOK(mp_copy(&qy, &sy)); + /* l = index of high order bit in binary representation of 3*k */ + l = mpl_significant_bits(&k3) - 1; + /* for i = l-1 downto 1 */ + for (i = l - 1; i >= 1; i--) { + /* S = 2S */ + MP_CHECKOK(group->point_dbl(&sx, &sy, &sx, &sy, group)); + b3 = MP_GET_BIT(&k3, i); + b1 = MP_GET_BIT(&k, i); + /* if k3_i = 1 and k_i = 0, then S = S + Q */ + if ((b3 == 1) && (b1 == 0)) { + MP_CHECKOK(group-> + point_add(&sx, &sy, &qx, &qy, &sx, &sy, group)); + /* if k3_i = 0 and k_i = 1, then S = S - Q */ + } else if ((b3 == 0) && (b1 == 1)) { + MP_CHECKOK(group-> + point_sub(&sx, &sy, &qx, &qy, &sx, &sy, group)); + } + } +#endif + /* output S */ + MP_CHECKOK(mp_copy(&sx, rx)); + MP_CHECKOK(mp_copy(&sy, ry)); + + CLEANUP: + mp_clear(&k); + mp_clear(&k3); + mp_clear(&qx); + mp_clear(&qy); + mp_clear(&sx); + mp_clear(&sy); + return res; +} +#endif + +/* Validates a point on a GFp curve. */ +mp_err +ec_GFp_validate_point(const mp_int *px, const mp_int *py, const ECGroup *group) +{ + mp_err res = MP_NO; + mp_int accl, accr, tmp, pxt, pyt; + + MP_DIGITS(&accl) = 0; + MP_DIGITS(&accr) = 0; + MP_DIGITS(&tmp) = 0; + MP_DIGITS(&pxt) = 0; + MP_DIGITS(&pyt) = 0; + MP_CHECKOK(mp_init(&accl, FLAG(px))); + MP_CHECKOK(mp_init(&accr, FLAG(px))); + MP_CHECKOK(mp_init(&tmp, FLAG(px))); + MP_CHECKOK(mp_init(&pxt, FLAG(px))); + MP_CHECKOK(mp_init(&pyt, FLAG(px))); + + /* 1: Verify that publicValue is not the point at infinity */ + if (ec_GFp_pt_is_inf_aff(px, py) == MP_YES) { + res = MP_NO; + goto CLEANUP; + } + /* 2: Verify that the coordinates of publicValue are elements + * of the field. + */ + if ((MP_SIGN(px) == MP_NEG) || (mp_cmp(px, &group->meth->irr) >= 0) || + (MP_SIGN(py) == MP_NEG) || (mp_cmp(py, &group->meth->irr) >= 0)) { + res = MP_NO; + goto CLEANUP; + } + /* 3: Verify that publicValue is on the curve. */ + if (group->meth->field_enc) { + group->meth->field_enc(px, &pxt, group->meth); + group->meth->field_enc(py, &pyt, group->meth); + } else { + mp_copy(px, &pxt); + mp_copy(py, &pyt); + } + /* left-hand side: y^2 */ + MP_CHECKOK( group->meth->field_sqr(&pyt, &accl, group->meth) ); + /* right-hand side: x^3 + a*x + b */ + MP_CHECKOK( group->meth->field_sqr(&pxt, &tmp, group->meth) ); + MP_CHECKOK( group->meth->field_mul(&pxt, &tmp, &accr, group->meth) ); + MP_CHECKOK( group->meth->field_mul(&group->curvea, &pxt, &tmp, group->meth) ); + MP_CHECKOK( group->meth->field_add(&tmp, &accr, &accr, group->meth) ); + MP_CHECKOK( group->meth->field_add(&accr, &group->curveb, &accr, group->meth) ); + /* check LHS - RHS == 0 */ + MP_CHECKOK( group->meth->field_sub(&accl, &accr, &accr, group->meth) ); + if (mp_cmp_z(&accr) != 0) { + res = MP_NO; + goto CLEANUP; + } + /* 4: Verify that the order of the curve times the publicValue + * is the point at infinity. + */ + MP_CHECKOK( ECPoint_mul(group, &group->order, px, py, &pxt, &pyt) ); + if (ec_GFp_pt_is_inf_aff(&pxt, &pyt) != MP_YES) { + res = MP_NO; + goto CLEANUP; + } + + res = MP_YES; + +CLEANUP: + mp_clear(&accl); + mp_clear(&accr); + mp_clear(&tmp); + mp_clear(&pxt); + mp_clear(&pyt); + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_jac.c b/src/share/native/sun/security/ec/impl/ecp_jac.c new file mode 100644 index 000000000..47c0e195d --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_jac.c @@ -0,0 +1,575 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang-Shantz , + * Stephen Fung , and + * Douglas Stebila , Sun Microsystems Laboratories. + * Bodo Moeller , + * Nils Larsch , and + * Lenka Fibikova , the OpenSSL Project + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "mplogic.h" +#ifndef _KERNEL +#include +#endif +#ifdef ECL_DEBUG +#include +#endif + +/* Converts a point P(px, py) from affine coordinates to Jacobian + * projective coordinates R(rx, ry, rz). Assumes input is already + * field-encoded using field_enc, and returns output that is still + * field-encoded. */ +mp_err +ec_GFp_pt_aff2jac(const mp_int *px, const mp_int *py, mp_int *rx, + mp_int *ry, mp_int *rz, const ECGroup *group) +{ + mp_err res = MP_OKAY; + + if (ec_GFp_pt_is_inf_aff(px, py) == MP_YES) { + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, rz)); + } else { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + MP_CHECKOK(mp_set_int(rz, 1)); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth->field_enc(rz, rz, group->meth)); + } + } + CLEANUP: + return res; +} + +/* Converts a point P(px, py, pz) from Jacobian projective coordinates to + * affine coordinates R(rx, ry). P and R can share x and y coordinates. + * Assumes input is already field-encoded using field_enc, and returns + * output that is still field-encoded. */ +mp_err +ec_GFp_pt_jac2aff(const mp_int *px, const mp_int *py, const mp_int *pz, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int z1, z2, z3; + + MP_DIGITS(&z1) = 0; + MP_DIGITS(&z2) = 0; + MP_DIGITS(&z3) = 0; + MP_CHECKOK(mp_init(&z1, FLAG(px))); + MP_CHECKOK(mp_init(&z2, FLAG(px))); + MP_CHECKOK(mp_init(&z3, FLAG(px))); + + /* if point at infinity, then set point at infinity and exit */ + if (ec_GFp_pt_is_inf_jac(px, py, pz) == MP_YES) { + MP_CHECKOK(ec_GFp_pt_set_inf_aff(rx, ry)); + goto CLEANUP; + } + + /* transform (px, py, pz) into (px / pz^2, py / pz^3) */ + if (mp_cmp_d(pz, 1) == 0) { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + } else { + MP_CHECKOK(group->meth->field_div(NULL, pz, &z1, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&z1, &z2, group->meth)); + MP_CHECKOK(group->meth->field_mul(&z1, &z2, &z3, group->meth)); + MP_CHECKOK(group->meth->field_mul(px, &z2, rx, group->meth)); + MP_CHECKOK(group->meth->field_mul(py, &z3, ry, group->meth)); + } + + CLEANUP: + mp_clear(&z1); + mp_clear(&z2); + mp_clear(&z3); + return res; +} + +/* Checks if point P(px, py, pz) is at infinity. Uses Jacobian + * coordinates. */ +mp_err +ec_GFp_pt_is_inf_jac(const mp_int *px, const mp_int *py, const mp_int *pz) +{ + return mp_cmp_z(pz); +} + +/* Sets P(px, py, pz) to be the point at infinity. Uses Jacobian + * coordinates. */ +mp_err +ec_GFp_pt_set_inf_jac(mp_int *px, mp_int *py, mp_int *pz) +{ + mp_zero(pz); + return MP_OKAY; +} + +/* Computes R = P + Q where R is (rx, ry, rz), P is (px, py, pz) and Q is + * (qx, qy, 1). Elliptic curve points P, Q, and R can all be identical. + * Uses mixed Jacobian-affine coordinates. Assumes input is already + * field-encoded using field_enc, and returns output that is still + * field-encoded. Uses equation (2) from Brown, Hankerson, Lopez, and + * Menezes. Software Implementation of the NIST Elliptic Curves Over Prime + * Fields. */ +mp_err +ec_GFp_pt_add_jac_aff(const mp_int *px, const mp_int *py, const mp_int *pz, + const mp_int *qx, const mp_int *qy, mp_int *rx, + mp_int *ry, mp_int *rz, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int A, B, C, D, C2, C3; + + MP_DIGITS(&A) = 0; + MP_DIGITS(&B) = 0; + MP_DIGITS(&C) = 0; + MP_DIGITS(&D) = 0; + MP_DIGITS(&C2) = 0; + MP_DIGITS(&C3) = 0; + MP_CHECKOK(mp_init(&A, FLAG(px))); + MP_CHECKOK(mp_init(&B, FLAG(px))); + MP_CHECKOK(mp_init(&C, FLAG(px))); + MP_CHECKOK(mp_init(&D, FLAG(px))); + MP_CHECKOK(mp_init(&C2, FLAG(px))); + MP_CHECKOK(mp_init(&C3, FLAG(px))); + + /* If either P or Q is the point at infinity, then return the other + * point */ + if (ec_GFp_pt_is_inf_jac(px, py, pz) == MP_YES) { + MP_CHECKOK(ec_GFp_pt_aff2jac(qx, qy, rx, ry, rz, group)); + goto CLEANUP; + } + if (ec_GFp_pt_is_inf_aff(qx, qy) == MP_YES) { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + MP_CHECKOK(mp_copy(pz, rz)); + goto CLEANUP; + } + + /* A = qx * pz^2, B = qy * pz^3 */ + MP_CHECKOK(group->meth->field_sqr(pz, &A, group->meth)); + MP_CHECKOK(group->meth->field_mul(&A, pz, &B, group->meth)); + MP_CHECKOK(group->meth->field_mul(&A, qx, &A, group->meth)); + MP_CHECKOK(group->meth->field_mul(&B, qy, &B, group->meth)); + + /* C = A - px, D = B - py */ + MP_CHECKOK(group->meth->field_sub(&A, px, &C, group->meth)); + MP_CHECKOK(group->meth->field_sub(&B, py, &D, group->meth)); + + /* C2 = C^2, C3 = C^3 */ + MP_CHECKOK(group->meth->field_sqr(&C, &C2, group->meth)); + MP_CHECKOK(group->meth->field_mul(&C, &C2, &C3, group->meth)); + + /* rz = pz * C */ + MP_CHECKOK(group->meth->field_mul(pz, &C, rz, group->meth)); + + /* C = px * C^2 */ + MP_CHECKOK(group->meth->field_mul(px, &C2, &C, group->meth)); + /* A = D^2 */ + MP_CHECKOK(group->meth->field_sqr(&D, &A, group->meth)); + + /* rx = D^2 - (C^3 + 2 * (px * C^2)) */ + MP_CHECKOK(group->meth->field_add(&C, &C, rx, group->meth)); + MP_CHECKOK(group->meth->field_add(&C3, rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_sub(&A, rx, rx, group->meth)); + + /* C3 = py * C^3 */ + MP_CHECKOK(group->meth->field_mul(py, &C3, &C3, group->meth)); + + /* ry = D * (px * C^2 - rx) - py * C^3 */ + MP_CHECKOK(group->meth->field_sub(&C, rx, ry, group->meth)); + MP_CHECKOK(group->meth->field_mul(&D, ry, ry, group->meth)); + MP_CHECKOK(group->meth->field_sub(ry, &C3, ry, group->meth)); + + CLEANUP: + mp_clear(&A); + mp_clear(&B); + mp_clear(&C); + mp_clear(&D); + mp_clear(&C2); + mp_clear(&C3); + return res; +} + +/* Computes R = 2P. Elliptic curve points P and R can be identical. Uses + * Jacobian coordinates. + * + * Assumes input is already field-encoded using field_enc, and returns + * output that is still field-encoded. + * + * This routine implements Point Doubling in the Jacobian Projective + * space as described in the paper "Efficient elliptic curve exponentiation + * using mixed coordinates", by H. Cohen, A Miyaji, T. Ono. + */ +mp_err +ec_GFp_pt_dbl_jac(const mp_int *px, const mp_int *py, const mp_int *pz, + mp_int *rx, mp_int *ry, mp_int *rz, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int t0, t1, M, S; + + MP_DIGITS(&t0) = 0; + MP_DIGITS(&t1) = 0; + MP_DIGITS(&M) = 0; + MP_DIGITS(&S) = 0; + MP_CHECKOK(mp_init(&t0, FLAG(px))); + MP_CHECKOK(mp_init(&t1, FLAG(px))); + MP_CHECKOK(mp_init(&M, FLAG(px))); + MP_CHECKOK(mp_init(&S, FLAG(px))); + + if (ec_GFp_pt_is_inf_jac(px, py, pz) == MP_YES) { + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, rz)); + goto CLEANUP; + } + + if (mp_cmp_d(pz, 1) == 0) { + /* M = 3 * px^2 + a */ + MP_CHECKOK(group->meth->field_sqr(px, &t0, group->meth)); + MP_CHECKOK(group->meth->field_add(&t0, &t0, &M, group->meth)); + MP_CHECKOK(group->meth->field_add(&t0, &M, &t0, group->meth)); + MP_CHECKOK(group->meth-> + field_add(&t0, &group->curvea, &M, group->meth)); + } else if (mp_cmp_int(&group->curvea, -3, FLAG(px)) == 0) { + /* M = 3 * (px + pz^2) * (px - pz^2) */ + MP_CHECKOK(group->meth->field_sqr(pz, &M, group->meth)); + MP_CHECKOK(group->meth->field_add(px, &M, &t0, group->meth)); + MP_CHECKOK(group->meth->field_sub(px, &M, &t1, group->meth)); + MP_CHECKOK(group->meth->field_mul(&t0, &t1, &M, group->meth)); + MP_CHECKOK(group->meth->field_add(&M, &M, &t0, group->meth)); + MP_CHECKOK(group->meth->field_add(&t0, &M, &M, group->meth)); + } else { + /* M = 3 * (px^2) + a * (pz^4) */ + MP_CHECKOK(group->meth->field_sqr(px, &t0, group->meth)); + MP_CHECKOK(group->meth->field_add(&t0, &t0, &M, group->meth)); + MP_CHECKOK(group->meth->field_add(&t0, &M, &t0, group->meth)); + MP_CHECKOK(group->meth->field_sqr(pz, &M, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&M, &M, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(&M, &group->curvea, &M, group->meth)); + MP_CHECKOK(group->meth->field_add(&M, &t0, &M, group->meth)); + } + + /* rz = 2 * py * pz */ + /* t0 = 4 * py^2 */ + if (mp_cmp_d(pz, 1) == 0) { + MP_CHECKOK(group->meth->field_add(py, py, rz, group->meth)); + MP_CHECKOK(group->meth->field_sqr(rz, &t0, group->meth)); + } else { + MP_CHECKOK(group->meth->field_add(py, py, &t0, group->meth)); + MP_CHECKOK(group->meth->field_mul(&t0, pz, rz, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&t0, &t0, group->meth)); + } + + /* S = 4 * px * py^2 = px * (2 * py)^2 */ + MP_CHECKOK(group->meth->field_mul(px, &t0, &S, group->meth)); + + /* rx = M^2 - 2 * S */ + MP_CHECKOK(group->meth->field_add(&S, &S, &t1, group->meth)); + MP_CHECKOK(group->meth->field_sqr(&M, rx, group->meth)); + MP_CHECKOK(group->meth->field_sub(rx, &t1, rx, group->meth)); + + /* ry = M * (S - rx) - 8 * py^4 */ + MP_CHECKOK(group->meth->field_sqr(&t0, &t1, group->meth)); + if (mp_isodd(&t1)) { + MP_CHECKOK(mp_add(&t1, &group->meth->irr, &t1)); + } + MP_CHECKOK(mp_div_2(&t1, &t1)); + MP_CHECKOK(group->meth->field_sub(&S, rx, &S, group->meth)); + MP_CHECKOK(group->meth->field_mul(&M, &S, &M, group->meth)); + MP_CHECKOK(group->meth->field_sub(&M, &t1, ry, group->meth)); + + CLEANUP: + mp_clear(&t0); + mp_clear(&t1); + mp_clear(&M); + mp_clear(&S); + return res; +} + +/* by default, this routine is unused and thus doesn't need to be compiled */ +#ifdef ECL_ENABLE_GFP_PT_MUL_JAC +/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters + * a, b and p are the elliptic curve coefficients and the prime that + * determines the field GFp. Elliptic curve points P and R can be + * identical. Uses mixed Jacobian-affine coordinates. Assumes input is + * already field-encoded using field_enc, and returns output that is still + * field-encoded. Uses 4-bit window method. */ +mp_err +ec_GFp_pt_mul_jac(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int precomp[16][2], rz; + int i, ni, d; + + MP_DIGITS(&rz) = 0; + for (i = 0; i < 16; i++) { + MP_DIGITS(&precomp[i][0]) = 0; + MP_DIGITS(&precomp[i][1]) = 0; + } + + ARGCHK(group != NULL, MP_BADARG); + ARGCHK((n != NULL) && (px != NULL) && (py != NULL), MP_BADARG); + + /* initialize precomputation table */ + for (i = 0; i < 16; i++) { + MP_CHECKOK(mp_init(&precomp[i][0])); + MP_CHECKOK(mp_init(&precomp[i][1])); + } + + /* fill precomputation table */ + mp_zero(&precomp[0][0]); + mp_zero(&precomp[0][1]); + MP_CHECKOK(mp_copy(px, &precomp[1][0])); + MP_CHECKOK(mp_copy(py, &precomp[1][1])); + for (i = 2; i < 16; i++) { + MP_CHECKOK(group-> + point_add(&precomp[1][0], &precomp[1][1], + &precomp[i - 1][0], &precomp[i - 1][1], + &precomp[i][0], &precomp[i][1], group)); + } + + d = (mpl_significant_bits(n) + 3) / 4; + + /* R = inf */ + MP_CHECKOK(mp_init(&rz)); + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, &rz)); + + for (i = d - 1; i >= 0; i--) { + /* compute window ni */ + ni = MP_GET_BIT(n, 4 * i + 3); + ni <<= 1; + ni |= MP_GET_BIT(n, 4 * i + 2); + ni <<= 1; + ni |= MP_GET_BIT(n, 4 * i + 1); + ni <<= 1; + ni |= MP_GET_BIT(n, 4 * i); + /* R = 2^4 * R */ + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + /* R = R + (ni * P) */ + MP_CHECKOK(ec_GFp_pt_add_jac_aff + (rx, ry, &rz, &precomp[ni][0], &precomp[ni][1], rx, ry, + &rz, group)); + } + + /* convert result S to affine coordinates */ + MP_CHECKOK(ec_GFp_pt_jac2aff(rx, ry, &rz, rx, ry, group)); + + CLEANUP: + mp_clear(&rz); + for (i = 0; i < 16; i++) { + mp_clear(&precomp[i][0]); + mp_clear(&precomp[i][1]); + } + return res; +} +#endif + +/* Elliptic curve scalar-point multiplication. Computes R(x, y) = k1 * G + + * k2 * P(x, y), where G is the generator (base point) of the group of + * points on the elliptic curve. Allows k1 = NULL or { k2, P } = NULL. + * Uses mixed Jacobian-affine coordinates. Input and output values are + * assumed to be NOT field-encoded. Uses algorithm 15 (simultaneous + * multiple point multiplication) from Brown, Hankerson, Lopez, Menezes. + * Software Implementation of the NIST Elliptic Curves over Prime Fields. */ +mp_err +ec_GFp_pts_mul_jac(const mp_int *k1, const mp_int *k2, const mp_int *px, + const mp_int *py, mp_int *rx, mp_int *ry, + const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int precomp[4][4][2]; + mp_int rz; + const mp_int *a, *b; + int i, j; + int ai, bi, d; + + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + MP_DIGITS(&precomp[i][j][0]) = 0; + MP_DIGITS(&precomp[i][j][1]) = 0; + } + } + MP_DIGITS(&rz) = 0; + + ARGCHK(group != NULL, MP_BADARG); + ARGCHK(!((k1 == NULL) + && ((k2 == NULL) || (px == NULL) + || (py == NULL))), MP_BADARG); + + /* if some arguments are not defined used ECPoint_mul */ + if (k1 == NULL) { + return ECPoint_mul(group, k2, px, py, rx, ry); + } else if ((k2 == NULL) || (px == NULL) || (py == NULL)) { + return ECPoint_mul(group, k1, NULL, NULL, rx, ry); + } + + /* initialize precomputation table */ + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + MP_CHECKOK(mp_init(&precomp[i][j][0], FLAG(k1))); + MP_CHECKOK(mp_init(&precomp[i][j][1], FLAG(k1))); + } + } + + /* fill precomputation table */ + /* assign {k1, k2} = {a, b} such that len(a) >= len(b) */ + if (mpl_significant_bits(k1) < mpl_significant_bits(k2)) { + a = k2; + b = k1; + if (group->meth->field_enc) { + MP_CHECKOK(group->meth-> + field_enc(px, &precomp[1][0][0], group->meth)); + MP_CHECKOK(group->meth-> + field_enc(py, &precomp[1][0][1], group->meth)); + } else { + MP_CHECKOK(mp_copy(px, &precomp[1][0][0])); + MP_CHECKOK(mp_copy(py, &precomp[1][0][1])); + } + MP_CHECKOK(mp_copy(&group->genx, &precomp[0][1][0])); + MP_CHECKOK(mp_copy(&group->geny, &precomp[0][1][1])); + } else { + a = k1; + b = k2; + MP_CHECKOK(mp_copy(&group->genx, &precomp[1][0][0])); + MP_CHECKOK(mp_copy(&group->geny, &precomp[1][0][1])); + if (group->meth->field_enc) { + MP_CHECKOK(group->meth-> + field_enc(px, &precomp[0][1][0], group->meth)); + MP_CHECKOK(group->meth-> + field_enc(py, &precomp[0][1][1], group->meth)); + } else { + MP_CHECKOK(mp_copy(px, &precomp[0][1][0])); + MP_CHECKOK(mp_copy(py, &precomp[0][1][1])); + } + } + /* precompute [*][0][*] */ + mp_zero(&precomp[0][0][0]); + mp_zero(&precomp[0][0][1]); + MP_CHECKOK(group-> + point_dbl(&precomp[1][0][0], &precomp[1][0][1], + &precomp[2][0][0], &precomp[2][0][1], group)); + MP_CHECKOK(group-> + point_add(&precomp[1][0][0], &precomp[1][0][1], + &precomp[2][0][0], &precomp[2][0][1], + &precomp[3][0][0], &precomp[3][0][1], group)); + /* precompute [*][1][*] */ + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][1][0], &precomp[0][1][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][1][0], &precomp[i][1][1], group)); + } + /* precompute [*][2][*] */ + MP_CHECKOK(group-> + point_dbl(&precomp[0][1][0], &precomp[0][1][1], + &precomp[0][2][0], &precomp[0][2][1], group)); + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][2][0], &precomp[0][2][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][2][0], &precomp[i][2][1], group)); + } + /* precompute [*][3][*] */ + MP_CHECKOK(group-> + point_add(&precomp[0][1][0], &precomp[0][1][1], + &precomp[0][2][0], &precomp[0][2][1], + &precomp[0][3][0], &precomp[0][3][1], group)); + for (i = 1; i < 4; i++) { + MP_CHECKOK(group-> + point_add(&precomp[0][3][0], &precomp[0][3][1], + &precomp[i][0][0], &precomp[i][0][1], + &precomp[i][3][0], &precomp[i][3][1], group)); + } + + d = (mpl_significant_bits(a) + 1) / 2; + + /* R = inf */ + MP_CHECKOK(mp_init(&rz, FLAG(k1))); + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, &rz)); + + for (i = d - 1; i >= 0; i--) { + ai = MP_GET_BIT(a, 2 * i + 1); + ai <<= 1; + ai |= MP_GET_BIT(a, 2 * i); + bi = MP_GET_BIT(b, 2 * i + 1); + bi <<= 1; + bi |= MP_GET_BIT(b, 2 * i); + /* R = 2^2 * R */ + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + MP_CHECKOK(ec_GFp_pt_dbl_jac(rx, ry, &rz, rx, ry, &rz, group)); + /* R = R + (ai * A + bi * B) */ + MP_CHECKOK(ec_GFp_pt_add_jac_aff + (rx, ry, &rz, &precomp[ai][bi][0], &precomp[ai][bi][1], + rx, ry, &rz, group)); + } + + MP_CHECKOK(ec_GFp_pt_jac2aff(rx, ry, &rz, rx, ry, group)); + + if (group->meth->field_dec) { + MP_CHECKOK(group->meth->field_dec(rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_dec(ry, ry, group->meth)); + } + + CLEANUP: + mp_clear(&rz); + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + mp_clear(&precomp[i][j][0]); + mp_clear(&precomp[i][j][1]); + } + } + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_jm.c b/src/share/native/sun/security/ec/impl/ecp_jm.c new file mode 100644 index 000000000..a5e38db21 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_jm.c @@ -0,0 +1,353 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library for prime field curves. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Stephen Fung , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "ecp.h" +#include "ecl-priv.h" +#include "mplogic.h" +#ifndef _KERNEL +#include +#endif + +#define MAX_SCRATCH 6 + +/* Computes R = 2P. Elliptic curve points P and R can be identical. Uses + * Modified Jacobian coordinates. + * + * Assumes input is already field-encoded using field_enc, and returns + * output that is still field-encoded. + * + */ +mp_err +ec_GFp_pt_dbl_jm(const mp_int *px, const mp_int *py, const mp_int *pz, + const mp_int *paz4, mp_int *rx, mp_int *ry, mp_int *rz, + mp_int *raz4, mp_int scratch[], const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int *t0, *t1, *M, *S; + + t0 = &scratch[0]; + t1 = &scratch[1]; + M = &scratch[2]; + S = &scratch[3]; + +#if MAX_SCRATCH < 4 +#error "Scratch array defined too small " +#endif + + /* Check for point at infinity */ + if (ec_GFp_pt_is_inf_jac(px, py, pz) == MP_YES) { + /* Set r = pt at infinity by setting rz = 0 */ + + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, rz)); + goto CLEANUP; + } + + /* M = 3 (px^2) + a*(pz^4) */ + MP_CHECKOK(group->meth->field_sqr(px, t0, group->meth)); + MP_CHECKOK(group->meth->field_add(t0, t0, M, group->meth)); + MP_CHECKOK(group->meth->field_add(t0, M, t0, group->meth)); + MP_CHECKOK(group->meth->field_add(t0, paz4, M, group->meth)); + + /* rz = 2 * py * pz */ + MP_CHECKOK(group->meth->field_mul(py, pz, S, group->meth)); + MP_CHECKOK(group->meth->field_add(S, S, rz, group->meth)); + + /* t0 = 2y^2 , t1 = 8y^4 */ + MP_CHECKOK(group->meth->field_sqr(py, t0, group->meth)); + MP_CHECKOK(group->meth->field_add(t0, t0, t0, group->meth)); + MP_CHECKOK(group->meth->field_sqr(t0, t1, group->meth)); + MP_CHECKOK(group->meth->field_add(t1, t1, t1, group->meth)); + + /* S = 4 * px * py^2 = 2 * px * t0 */ + MP_CHECKOK(group->meth->field_mul(px, t0, S, group->meth)); + MP_CHECKOK(group->meth->field_add(S, S, S, group->meth)); + + + /* rx = M^2 - 2S */ + MP_CHECKOK(group->meth->field_sqr(M, rx, group->meth)); + MP_CHECKOK(group->meth->field_sub(rx, S, rx, group->meth)); + MP_CHECKOK(group->meth->field_sub(rx, S, rx, group->meth)); + + /* ry = M * (S - rx) - t1 */ + MP_CHECKOK(group->meth->field_sub(S, rx, S, group->meth)); + MP_CHECKOK(group->meth->field_mul(S, M, ry, group->meth)); + MP_CHECKOK(group->meth->field_sub(ry, t1, ry, group->meth)); + + /* ra*z^4 = 2*t1*(apz4) */ + MP_CHECKOK(group->meth->field_mul(paz4, t1, raz4, group->meth)); + MP_CHECKOK(group->meth->field_add(raz4, raz4, raz4, group->meth)); + + + CLEANUP: + return res; +} + +/* Computes R = P + Q where R is (rx, ry, rz), P is (px, py, pz) and Q is + * (qx, qy, 1). Elliptic curve points P, Q, and R can all be identical. + * Uses mixed Modified_Jacobian-affine coordinates. Assumes input is + * already field-encoded using field_enc, and returns output that is still + * field-encoded. */ +mp_err +ec_GFp_pt_add_jm_aff(const mp_int *px, const mp_int *py, const mp_int *pz, + const mp_int *paz4, const mp_int *qx, + const mp_int *qy, mp_int *rx, mp_int *ry, mp_int *rz, + mp_int *raz4, mp_int scratch[], const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int *A, *B, *C, *D, *C2, *C3; + + A = &scratch[0]; + B = &scratch[1]; + C = &scratch[2]; + D = &scratch[3]; + C2 = &scratch[4]; + C3 = &scratch[5]; + +#if MAX_SCRATCH < 6 +#error "Scratch array defined too small " +#endif + + /* If either P or Q is the point at infinity, then return the other + * point */ + if (ec_GFp_pt_is_inf_jac(px, py, pz) == MP_YES) { + MP_CHECKOK(ec_GFp_pt_aff2jac(qx, qy, rx, ry, rz, group)); + MP_CHECKOK(group->meth->field_sqr(rz, raz4, group->meth)); + MP_CHECKOK(group->meth->field_sqr(raz4, raz4, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(raz4, &group->curvea, raz4, group->meth)); + goto CLEANUP; + } + if (ec_GFp_pt_is_inf_aff(qx, qy) == MP_YES) { + MP_CHECKOK(mp_copy(px, rx)); + MP_CHECKOK(mp_copy(py, ry)); + MP_CHECKOK(mp_copy(pz, rz)); + MP_CHECKOK(mp_copy(paz4, raz4)); + goto CLEANUP; + } + + /* A = qx * pz^2, B = qy * pz^3 */ + MP_CHECKOK(group->meth->field_sqr(pz, A, group->meth)); + MP_CHECKOK(group->meth->field_mul(A, pz, B, group->meth)); + MP_CHECKOK(group->meth->field_mul(A, qx, A, group->meth)); + MP_CHECKOK(group->meth->field_mul(B, qy, B, group->meth)); + + /* C = A - px, D = B - py */ + MP_CHECKOK(group->meth->field_sub(A, px, C, group->meth)); + MP_CHECKOK(group->meth->field_sub(B, py, D, group->meth)); + + /* C2 = C^2, C3 = C^3 */ + MP_CHECKOK(group->meth->field_sqr(C, C2, group->meth)); + MP_CHECKOK(group->meth->field_mul(C, C2, C3, group->meth)); + + /* rz = pz * C */ + MP_CHECKOK(group->meth->field_mul(pz, C, rz, group->meth)); + + /* C = px * C^2 */ + MP_CHECKOK(group->meth->field_mul(px, C2, C, group->meth)); + /* A = D^2 */ + MP_CHECKOK(group->meth->field_sqr(D, A, group->meth)); + + /* rx = D^2 - (C^3 + 2 * (px * C^2)) */ + MP_CHECKOK(group->meth->field_add(C, C, rx, group->meth)); + MP_CHECKOK(group->meth->field_add(C3, rx, rx, group->meth)); + MP_CHECKOK(group->meth->field_sub(A, rx, rx, group->meth)); + + /* C3 = py * C^3 */ + MP_CHECKOK(group->meth->field_mul(py, C3, C3, group->meth)); + + /* ry = D * (px * C^2 - rx) - py * C^3 */ + MP_CHECKOK(group->meth->field_sub(C, rx, ry, group->meth)); + MP_CHECKOK(group->meth->field_mul(D, ry, ry, group->meth)); + MP_CHECKOK(group->meth->field_sub(ry, C3, ry, group->meth)); + + /* raz4 = a * rz^4 */ + MP_CHECKOK(group->meth->field_sqr(rz, raz4, group->meth)); + MP_CHECKOK(group->meth->field_sqr(raz4, raz4, group->meth)); + MP_CHECKOK(group->meth-> + field_mul(raz4, &group->curvea, raz4, group->meth)); +CLEANUP: + return res; +} + +/* Computes R = nP where R is (rx, ry) and P is the base point. Elliptic + * curve points P and R can be identical. Uses mixed Modified-Jacobian + * co-ordinates for doubling and Chudnovsky Jacobian coordinates for + * additions. Assumes input is already field-encoded using field_enc, and + * returns output that is still field-encoded. Uses 5-bit window NAF + * method (algorithm 11) for scalar-point multiplication from Brown, + * Hankerson, Lopez, Menezes. Software Implementation of the NIST Elliptic + * Curves Over Prime Fields. */ +mp_err +ec_GFp_pt_mul_jm_wNAF(const mp_int *n, const mp_int *px, const mp_int *py, + mp_int *rx, mp_int *ry, const ECGroup *group) +{ + mp_err res = MP_OKAY; + mp_int precomp[16][2], rz, tpx, tpy; + mp_int raz4; + mp_int scratch[MAX_SCRATCH]; + signed char *naf = NULL; + int i, orderBitSize; + + MP_DIGITS(&rz) = 0; + MP_DIGITS(&raz4) = 0; + MP_DIGITS(&tpx) = 0; + MP_DIGITS(&tpy) = 0; + for (i = 0; i < 16; i++) { + MP_DIGITS(&precomp[i][0]) = 0; + MP_DIGITS(&precomp[i][1]) = 0; + } + for (i = 0; i < MAX_SCRATCH; i++) { + MP_DIGITS(&scratch[i]) = 0; + } + + ARGCHK(group != NULL, MP_BADARG); + ARGCHK((n != NULL) && (px != NULL) && (py != NULL), MP_BADARG); + + /* initialize precomputation table */ + MP_CHECKOK(mp_init(&tpx, FLAG(n))); + MP_CHECKOK(mp_init(&tpy, FLAG(n)));; + MP_CHECKOK(mp_init(&rz, FLAG(n))); + MP_CHECKOK(mp_init(&raz4, FLAG(n))); + + for (i = 0; i < 16; i++) { + MP_CHECKOK(mp_init(&precomp[i][0], FLAG(n))); + MP_CHECKOK(mp_init(&precomp[i][1], FLAG(n))); + } + for (i = 0; i < MAX_SCRATCH; i++) { + MP_CHECKOK(mp_init(&scratch[i], FLAG(n))); + } + + /* Set out[8] = P */ + MP_CHECKOK(mp_copy(px, &precomp[8][0])); + MP_CHECKOK(mp_copy(py, &precomp[8][1])); + + /* Set (tpx, tpy) = 2P */ + MP_CHECKOK(group-> + point_dbl(&precomp[8][0], &precomp[8][1], &tpx, &tpy, + group)); + + /* Set 3P, 5P, ..., 15P */ + for (i = 8; i < 15; i++) { + MP_CHECKOK(group-> + point_add(&precomp[i][0], &precomp[i][1], &tpx, &tpy, + &precomp[i + 1][0], &precomp[i + 1][1], + group)); + } + + /* Set -15P, -13P, ..., -P */ + for (i = 0; i < 8; i++) { + MP_CHECKOK(mp_copy(&precomp[15 - i][0], &precomp[i][0])); + MP_CHECKOK(group->meth-> + field_neg(&precomp[15 - i][1], &precomp[i][1], + group->meth)); + } + + /* R = inf */ + MP_CHECKOK(ec_GFp_pt_set_inf_jac(rx, ry, &rz)); + + orderBitSize = mpl_significant_bits(&group->order); + + /* Allocate memory for NAF */ +#ifdef _KERNEL + naf = (signed char *) kmem_alloc((orderBitSize + 1), FLAG(n)); +#else + naf = (signed char *) malloc(sizeof(signed char) * (orderBitSize + 1)); + if (naf == NULL) { + res = MP_MEM; + goto CLEANUP; + } +#endif + + /* Compute 5NAF */ + ec_compute_wNAF(naf, orderBitSize, n, 5); + + /* wNAF method */ + for (i = orderBitSize; i >= 0; i--) { + /* R = 2R */ + ec_GFp_pt_dbl_jm(rx, ry, &rz, &raz4, rx, ry, &rz, + &raz4, scratch, group); + if (naf[i] != 0) { + ec_GFp_pt_add_jm_aff(rx, ry, &rz, &raz4, + &precomp[(naf[i] + 15) / 2][0], + &precomp[(naf[i] + 15) / 2][1], rx, ry, + &rz, &raz4, scratch, group); + } + } + + /* convert result S to affine coordinates */ + MP_CHECKOK(ec_GFp_pt_jac2aff(rx, ry, &rz, rx, ry, group)); + + CLEANUP: + for (i = 0; i < MAX_SCRATCH; i++) { + mp_clear(&scratch[i]); + } + for (i = 0; i < 16; i++) { + mp_clear(&precomp[i][0]); + mp_clear(&precomp[i][1]); + } + mp_clear(&tpx); + mp_clear(&tpy); + mp_clear(&rz); + mp_clear(&raz4); +#ifdef _KERNEL + kmem_free(naf, (orderBitSize + 1)); +#else + free(naf); +#endif + return res; +} diff --git a/src/share/native/sun/security/ec/impl/ecp_mont.c b/src/share/native/sun/security/ec/impl/ecp_mont.c new file mode 100644 index 000000000..6b4dbb29e --- /dev/null +++ b/src/share/native/sun/security/ec/impl/ecp_mont.c @@ -0,0 +1,223 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* Uses Montgomery reduction for field arithmetic. See mpi/mpmontg.c for + * code implementation. */ + +#include "mpi.h" +#include "mplogic.h" +#include "mpi-priv.h" +#include "ecl-priv.h" +#include "ecp.h" +#ifndef _KERNEL +#include +#include +#endif + +/* Construct a generic GFMethod for arithmetic over prime fields with + * irreducible irr. */ +GFMethod * +GFMethod_consGFp_mont(const mp_int *irr) +{ + mp_err res = MP_OKAY; + int i; + GFMethod *meth = NULL; + mp_mont_modulus *mmm; + + meth = GFMethod_consGFp(irr); + if (meth == NULL) + return NULL; + +#ifdef _KERNEL + mmm = (mp_mont_modulus *) kmem_alloc(sizeof(mp_mont_modulus), + FLAG(irr)); +#else + mmm = (mp_mont_modulus *) malloc(sizeof(mp_mont_modulus)); +#endif + if (mmm == NULL) { + res = MP_MEM; + goto CLEANUP; + } + + meth->field_mul = &ec_GFp_mul_mont; + meth->field_sqr = &ec_GFp_sqr_mont; + meth->field_div = &ec_GFp_div_mont; + meth->field_enc = &ec_GFp_enc_mont; + meth->field_dec = &ec_GFp_dec_mont; + meth->extra1 = mmm; + meth->extra2 = NULL; + meth->extra_free = &ec_GFp_extra_free_mont; + + mmm->N = meth->irr; + i = mpl_significant_bits(&meth->irr); + i += MP_DIGIT_BIT - 1; + mmm->b = i - i % MP_DIGIT_BIT; + mmm->n0prime = 0 - s_mp_invmod_radix(MP_DIGIT(&meth->irr, 0)); + + CLEANUP: + if (res != MP_OKAY) { + GFMethod_free(meth); + return NULL; + } + return meth; +} + +/* Wrapper functions for generic prime field arithmetic. */ + +/* Field multiplication using Montgomery reduction. */ +mp_err +ec_GFp_mul_mont(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + +#ifdef MP_MONT_USE_MP_MUL + /* if MP_MONT_USE_MP_MUL is defined, then the function s_mp_mul_mont + * is not implemented and we have to use mp_mul and s_mp_redc directly + */ + MP_CHECKOK(mp_mul(a, b, r)); + MP_CHECKOK(s_mp_redc(r, (mp_mont_modulus *) meth->extra1)); +#else + mp_int s; + + MP_DIGITS(&s) = 0; + /* s_mp_mul_mont doesn't allow source and destination to be the same */ + if ((a == r) || (b == r)) { + MP_CHECKOK(mp_init(&s, FLAG(a))); + MP_CHECKOK(s_mp_mul_mont + (a, b, &s, (mp_mont_modulus *) meth->extra1)); + MP_CHECKOK(mp_copy(&s, r)); + mp_clear(&s); + } else { + return s_mp_mul_mont(a, b, r, (mp_mont_modulus *) meth->extra1); + } +#endif + CLEANUP: + return res; +} + +/* Field squaring using Montgomery reduction. */ +mp_err +ec_GFp_sqr_mont(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + return ec_GFp_mul_mont(a, a, r, meth); +} + +/* Field division using Montgomery reduction. */ +mp_err +ec_GFp_div_mont(const mp_int *a, const mp_int *b, mp_int *r, + const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + /* if A=aZ represents a encoded in montgomery coordinates with Z and # + * and \ respectively represent multiplication and division in + * montgomery coordinates, then A\B = (a/b)Z = (A/B)Z and Binv = + * (1/b)Z = (1/B)(Z^2) where B # Binv = Z */ + MP_CHECKOK(ec_GFp_div(a, b, r, meth)); + MP_CHECKOK(ec_GFp_enc_mont(r, r, meth)); + if (a == NULL) { + MP_CHECKOK(ec_GFp_enc_mont(r, r, meth)); + } + CLEANUP: + return res; +} + +/* Encode a field element in Montgomery form. See s_mp_to_mont in + * mpi/mpmontg.c */ +mp_err +ec_GFp_enc_mont(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_mont_modulus *mmm; + mp_err res = MP_OKAY; + + mmm = (mp_mont_modulus *) meth->extra1; + MP_CHECKOK(mpl_lsh(a, r, mmm->b)); + MP_CHECKOK(mp_mod(r, &mmm->N, r)); + CLEANUP: + return res; +} + +/* Decode a field element from Montgomery form. */ +mp_err +ec_GFp_dec_mont(const mp_int *a, mp_int *r, const GFMethod *meth) +{ + mp_err res = MP_OKAY; + + if (a != r) { + MP_CHECKOK(mp_copy(a, r)); + } + MP_CHECKOK(s_mp_redc(r, (mp_mont_modulus *) meth->extra1)); + CLEANUP: + return res; +} + +/* Free the memory allocated to the extra fields of Montgomery GFMethod + * object. */ +void +ec_GFp_extra_free_mont(GFMethod *meth) +{ + if (meth->extra1 != NULL) { +#ifdef _KERNEL + kmem_free(meth->extra1, sizeof(mp_mont_modulus)); +#else + free(meth->extra1); +#endif + meth->extra1 = NULL; + } +} diff --git a/src/share/native/sun/security/ec/impl/logtab.h b/src/share/native/sun/security/ec/impl/logtab.h new file mode 100644 index 000000000..6efa01995 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/logtab.h @@ -0,0 +1,82 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _LOGTAB_H +#define _LOGTAB_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +const float s_logv_2[] = { + 0.000000000f, 0.000000000f, 1.000000000f, 0.630929754f, /* 0 1 2 3 */ + 0.500000000f, 0.430676558f, 0.386852807f, 0.356207187f, /* 4 5 6 7 */ + 0.333333333f, 0.315464877f, 0.301029996f, 0.289064826f, /* 8 9 10 11 */ + 0.278942946f, 0.270238154f, 0.262649535f, 0.255958025f, /* 12 13 14 15 */ + 0.250000000f, 0.244650542f, 0.239812467f, 0.235408913f, /* 16 17 18 19 */ + 0.231378213f, 0.227670249f, 0.224243824f, 0.221064729f, /* 20 21 22 23 */ + 0.218104292f, 0.215338279f, 0.212746054f, 0.210309918f, /* 24 25 26 27 */ + 0.208014598f, 0.205846832f, 0.203795047f, 0.201849087f, /* 28 29 30 31 */ + 0.200000000f, 0.198239863f, 0.196561632f, 0.194959022f, /* 32 33 34 35 */ + 0.193426404f, 0.191958720f, 0.190551412f, 0.189200360f, /* 36 37 38 39 */ + 0.187901825f, 0.186652411f, 0.185449023f, 0.184288833f, /* 40 41 42 43 */ + 0.183169251f, 0.182087900f, 0.181042597f, 0.180031327f, /* 44 45 46 47 */ + 0.179052232f, 0.178103594f, 0.177183820f, 0.176291434f, /* 48 49 50 51 */ + 0.175425064f, 0.174583430f, 0.173765343f, 0.172969690f, /* 52 53 54 55 */ + 0.172195434f, 0.171441601f, 0.170707280f, 0.169991616f, /* 56 57 58 59 */ + 0.169293808f, 0.168613099f, 0.167948779f, 0.167300179f, /* 60 61 62 63 */ + 0.166666667f +}; + +#endif /* _LOGTAB_H */ diff --git a/src/share/native/sun/security/ec/impl/mp_gf2m-priv.h b/src/share/native/sun/security/ec/impl/mp_gf2m-priv.h new file mode 100644 index 000000000..7a4505807 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mp_gf2m-priv.h @@ -0,0 +1,122 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Multi-precision Binary Polynomial Arithmetic Library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang Shantz and + * Douglas Stebila of Sun Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MP_GF2M_PRIV_H_ +#define _MP_GF2M_PRIV_H_ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi-priv.h" + +extern const mp_digit mp_gf2m_sqr_tb[16]; + +#if defined(MP_USE_UINT_DIGIT) +#define MP_DIGIT_BITS 32 +#else +#define MP_DIGIT_BITS 64 +#endif + +/* Platform-specific macros for fast binary polynomial squaring. */ +#if MP_DIGIT_BITS == 32 +#define gf2m_SQR1(w) \ + mp_gf2m_sqr_tb[(w) >> 28 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 24 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 20 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) >> 16 & 0xF] +#define gf2m_SQR0(w) \ + mp_gf2m_sqr_tb[(w) >> 12 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 8 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 4 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) & 0xF] +#else +#define gf2m_SQR1(w) \ + mp_gf2m_sqr_tb[(w) >> 60 & 0xF] << 56 | mp_gf2m_sqr_tb[(w) >> 56 & 0xF] << 48 | \ + mp_gf2m_sqr_tb[(w) >> 52 & 0xF] << 40 | mp_gf2m_sqr_tb[(w) >> 48 & 0xF] << 32 | \ + mp_gf2m_sqr_tb[(w) >> 44 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 40 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 36 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) >> 32 & 0xF] +#define gf2m_SQR0(w) \ + mp_gf2m_sqr_tb[(w) >> 28 & 0xF] << 56 | mp_gf2m_sqr_tb[(w) >> 24 & 0xF] << 48 | \ + mp_gf2m_sqr_tb[(w) >> 20 & 0xF] << 40 | mp_gf2m_sqr_tb[(w) >> 16 & 0xF] << 32 | \ + mp_gf2m_sqr_tb[(w) >> 12 & 0xF] << 24 | mp_gf2m_sqr_tb[(w) >> 8 & 0xF] << 16 | \ + mp_gf2m_sqr_tb[(w) >> 4 & 0xF] << 8 | mp_gf2m_sqr_tb[(w) & 0xF] +#endif + +/* Multiply two binary polynomials mp_digits a, b. + * Result is a polynomial with degree < 2 * MP_DIGIT_BITS - 1. + * Output in two mp_digits rh, rl. + */ +void s_bmul_1x1(mp_digit *rh, mp_digit *rl, const mp_digit a, const mp_digit b); + +/* Compute xor-multiply of two binary polynomials (a1, a0) x (b1, b0) + * result is a binary polynomial in 4 mp_digits r[4]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_2x2(mp_digit *r, const mp_digit a1, const mp_digit a0, const mp_digit b1, + const mp_digit b0); + +/* Compute xor-multiply of two binary polynomials (a2, a1, a0) x (b2, b1, b0) + * result is a binary polynomial in 6 mp_digits r[6]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_3x3(mp_digit *r, const mp_digit a2, const mp_digit a1, const mp_digit a0, + const mp_digit b2, const mp_digit b1, const mp_digit b0); + +/* Compute xor-multiply of two binary polynomials (a3, a2, a1, a0) x (b3, b2, b1, b0) + * result is a binary polynomial in 8 mp_digits r[8]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_4x4(mp_digit *r, const mp_digit a3, const mp_digit a2, const mp_digit a1, + const mp_digit a0, const mp_digit b3, const mp_digit b2, const mp_digit b1, + const mp_digit b0); + +#endif /* _MP_GF2M_PRIV_H_ */ diff --git a/src/share/native/sun/security/ec/impl/mp_gf2m.c b/src/share/native/sun/security/ec/impl/mp_gf2m.c new file mode 100644 index 000000000..74b64789c --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mp_gf2m.c @@ -0,0 +1,624 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Multi-precision Binary Polynomial Arithmetic Library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang Shantz and + * Douglas Stebila of Sun Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mp_gf2m.h" +#include "mp_gf2m-priv.h" +#include "mplogic.h" +#include "mpi-priv.h" + +const mp_digit mp_gf2m_sqr_tb[16] = +{ + 0, 1, 4, 5, 16, 17, 20, 21, + 64, 65, 68, 69, 80, 81, 84, 85 +}; + +/* Multiply two binary polynomials mp_digits a, b. + * Result is a polynomial with degree < 2 * MP_DIGIT_BITS - 1. + * Output in two mp_digits rh, rl. + */ +#if MP_DIGIT_BITS == 32 +void +s_bmul_1x1(mp_digit *rh, mp_digit *rl, const mp_digit a, const mp_digit b) +{ + register mp_digit h, l, s; + mp_digit tab[8], top2b = a >> 30; + register mp_digit a1, a2, a4; + + a1 = a & (0x3FFFFFFF); a2 = a1 << 1; a4 = a2 << 1; + + tab[0] = 0; tab[1] = a1; tab[2] = a2; tab[3] = a1^a2; + tab[4] = a4; tab[5] = a1^a4; tab[6] = a2^a4; tab[7] = a1^a2^a4; + + s = tab[b & 0x7]; l = s; + s = tab[b >> 3 & 0x7]; l ^= s << 3; h = s >> 29; + s = tab[b >> 6 & 0x7]; l ^= s << 6; h ^= s >> 26; + s = tab[b >> 9 & 0x7]; l ^= s << 9; h ^= s >> 23; + s = tab[b >> 12 & 0x7]; l ^= s << 12; h ^= s >> 20; + s = tab[b >> 15 & 0x7]; l ^= s << 15; h ^= s >> 17; + s = tab[b >> 18 & 0x7]; l ^= s << 18; h ^= s >> 14; + s = tab[b >> 21 & 0x7]; l ^= s << 21; h ^= s >> 11; + s = tab[b >> 24 & 0x7]; l ^= s << 24; h ^= s >> 8; + s = tab[b >> 27 & 0x7]; l ^= s << 27; h ^= s >> 5; + s = tab[b >> 30 ]; l ^= s << 30; h ^= s >> 2; + + /* compensate for the top two bits of a */ + + if (top2b & 01) { l ^= b << 30; h ^= b >> 2; } + if (top2b & 02) { l ^= b << 31; h ^= b >> 1; } + + *rh = h; *rl = l; +} +#else +void +s_bmul_1x1(mp_digit *rh, mp_digit *rl, const mp_digit a, const mp_digit b) +{ + register mp_digit h, l, s; + mp_digit tab[16], top3b = a >> 61; + register mp_digit a1, a2, a4, a8; + + a1 = a & (0x1FFFFFFFFFFFFFFFULL); a2 = a1 << 1; + a4 = a2 << 1; a8 = a4 << 1; + tab[ 0] = 0; tab[ 1] = a1; tab[ 2] = a2; tab[ 3] = a1^a2; + tab[ 4] = a4; tab[ 5] = a1^a4; tab[ 6] = a2^a4; tab[ 7] = a1^a2^a4; + tab[ 8] = a8; tab[ 9] = a1^a8; tab[10] = a2^a8; tab[11] = a1^a2^a8; + tab[12] = a4^a8; tab[13] = a1^a4^a8; tab[14] = a2^a4^a8; tab[15] = a1^a2^a4^a8; + + s = tab[b & 0xF]; l = s; + s = tab[b >> 4 & 0xF]; l ^= s << 4; h = s >> 60; + s = tab[b >> 8 & 0xF]; l ^= s << 8; h ^= s >> 56; + s = tab[b >> 12 & 0xF]; l ^= s << 12; h ^= s >> 52; + s = tab[b >> 16 & 0xF]; l ^= s << 16; h ^= s >> 48; + s = tab[b >> 20 & 0xF]; l ^= s << 20; h ^= s >> 44; + s = tab[b >> 24 & 0xF]; l ^= s << 24; h ^= s >> 40; + s = tab[b >> 28 & 0xF]; l ^= s << 28; h ^= s >> 36; + s = tab[b >> 32 & 0xF]; l ^= s << 32; h ^= s >> 32; + s = tab[b >> 36 & 0xF]; l ^= s << 36; h ^= s >> 28; + s = tab[b >> 40 & 0xF]; l ^= s << 40; h ^= s >> 24; + s = tab[b >> 44 & 0xF]; l ^= s << 44; h ^= s >> 20; + s = tab[b >> 48 & 0xF]; l ^= s << 48; h ^= s >> 16; + s = tab[b >> 52 & 0xF]; l ^= s << 52; h ^= s >> 12; + s = tab[b >> 56 & 0xF]; l ^= s << 56; h ^= s >> 8; + s = tab[b >> 60 ]; l ^= s << 60; h ^= s >> 4; + + /* compensate for the top three bits of a */ + + if (top3b & 01) { l ^= b << 61; h ^= b >> 3; } + if (top3b & 02) { l ^= b << 62; h ^= b >> 2; } + if (top3b & 04) { l ^= b << 63; h ^= b >> 1; } + + *rh = h; *rl = l; +} +#endif + +/* Compute xor-multiply of two binary polynomials (a1, a0) x (b1, b0) + * result is a binary polynomial in 4 mp_digits r[4]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void +s_bmul_2x2(mp_digit *r, const mp_digit a1, const mp_digit a0, const mp_digit b1, + const mp_digit b0) +{ + mp_digit m1, m0; + /* r[3] = h1, r[2] = h0; r[1] = l1; r[0] = l0 */ + s_bmul_1x1(r+3, r+2, a1, b1); + s_bmul_1x1(r+1, r, a0, b0); + s_bmul_1x1(&m1, &m0, a0 ^ a1, b0 ^ b1); + /* Correction on m1 ^= l1 ^ h1; m0 ^= l0 ^ h0; */ + r[2] ^= m1 ^ r[1] ^ r[3]; /* h0 ^= m1 ^ l1 ^ h1; */ + r[1] = r[3] ^ r[2] ^ r[0] ^ m1 ^ m0; /* l1 ^= l0 ^ h0 ^ m0; */ +} + +/* Compute xor-multiply of two binary polynomials (a2, a1, a0) x (b2, b1, b0) + * result is a binary polynomial in 6 mp_digits r[6]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void +s_bmul_3x3(mp_digit *r, const mp_digit a2, const mp_digit a1, const mp_digit a0, + const mp_digit b2, const mp_digit b1, const mp_digit b0) +{ + mp_digit zm[4]; + + s_bmul_1x1(r+5, r+4, a2, b2); /* fill top 2 words */ + s_bmul_2x2(zm, a1, a2^a0, b1, b2^b0); /* fill middle 4 words */ + s_bmul_2x2(r, a1, a0, b1, b0); /* fill bottom 4 words */ + + zm[3] ^= r[3]; + zm[2] ^= r[2]; + zm[1] ^= r[1] ^ r[5]; + zm[0] ^= r[0] ^ r[4]; + + r[5] ^= zm[3]; + r[4] ^= zm[2]; + r[3] ^= zm[1]; + r[2] ^= zm[0]; +} + +/* Compute xor-multiply of two binary polynomials (a3, a2, a1, a0) x (b3, b2, b1, b0) + * result is a binary polynomial in 8 mp_digits r[8]. + * The caller MUST ensure that r has the right amount of space allocated. + */ +void s_bmul_4x4(mp_digit *r, const mp_digit a3, const mp_digit a2, const mp_digit a1, + const mp_digit a0, const mp_digit b3, const mp_digit b2, const mp_digit b1, + const mp_digit b0) +{ + mp_digit zm[4]; + + s_bmul_2x2(r+4, a3, a2, b3, b2); /* fill top 4 words */ + s_bmul_2x2(zm, a3^a1, a2^a0, b3^b1, b2^b0); /* fill middle 4 words */ + s_bmul_2x2(r, a1, a0, b1, b0); /* fill bottom 4 words */ + + zm[3] ^= r[3] ^ r[7]; + zm[2] ^= r[2] ^ r[6]; + zm[1] ^= r[1] ^ r[5]; + zm[0] ^= r[0] ^ r[4]; + + r[5] ^= zm[3]; + r[4] ^= zm[2]; + r[3] ^= zm[1]; + r[2] ^= zm[0]; +} + +/* Compute addition of two binary polynomials a and b, + * store result in c; c could be a or b, a and b could be equal; + * c is the bitwise XOR of a and b. + */ +mp_err +mp_badd(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_digit *pa, *pb, *pc; + mp_size ix; + mp_size used_pa, used_pb; + mp_err res = MP_OKAY; + + /* Add all digits up to the precision of b. If b had more + * precision than a initially, swap a, b first + */ + if (MP_USED(a) >= MP_USED(b)) { + pa = MP_DIGITS(a); + pb = MP_DIGITS(b); + used_pa = MP_USED(a); + used_pb = MP_USED(b); + } else { + pa = MP_DIGITS(b); + pb = MP_DIGITS(a); + used_pa = MP_USED(b); + used_pb = MP_USED(a); + } + + /* Make sure c has enough precision for the output value */ + MP_CHECKOK( s_mp_pad(c, used_pa) ); + + /* Do word-by-word xor */ + pc = MP_DIGITS(c); + for (ix = 0; ix < used_pb; ix++) { + (*pc++) = (*pa++) ^ (*pb++); + } + + /* Finish the rest of digits until we're actually done */ + for (; ix < used_pa; ++ix) { + *pc++ = *pa++; + } + + MP_USED(c) = used_pa; + MP_SIGN(c) = ZPOS; + s_mp_clamp(c); + +CLEANUP: + return res; +} + +#define s_mp_div2(a) MP_CHECKOK( mpl_rsh((a), (a), 1) ); + +/* Compute binary polynomial multiply d = a * b */ +static void +s_bmul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *d) +{ + mp_digit a_i, a0b0, a1b1, carry = 0; + while (a_len--) { + a_i = *a++; + s_bmul_1x1(&a1b1, &a0b0, a_i, b); + *d++ = a0b0 ^ carry; + carry = a1b1; + } + *d = carry; +} + +/* Compute binary polynomial xor multiply accumulate d ^= a * b */ +static void +s_bmul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *d) +{ + mp_digit a_i, a0b0, a1b1, carry = 0; + while (a_len--) { + a_i = *a++; + s_bmul_1x1(&a1b1, &a0b0, a_i, b); + *d++ ^= a0b0 ^ carry; + carry = a1b1; + } + *d ^= carry; +} + +/* Compute binary polynomial xor multiply c = a * b. + * All parameters may be identical. + */ +mp_err +mp_bmul(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_digit *pb, b_i; + mp_int tmp; + mp_size ib, a_used, b_used; + mp_err res = MP_OKAY; + + MP_DIGITS(&tmp) = 0; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if (a == c) { + MP_CHECKOK( mp_init_copy(&tmp, a) ); + if (a == b) + b = &tmp; + a = &tmp; + } else if (b == c) { + MP_CHECKOK( mp_init_copy(&tmp, b) ); + b = &tmp; + } + + if (MP_USED(a) < MP_USED(b)) { + const mp_int *xch = b; /* switch a and b if b longer */ + b = a; + a = xch; + } + + MP_USED(c) = 1; MP_DIGIT(c, 0) = 0; + MP_CHECKOK( s_mp_pad(c, USED(a) + USED(b)) ); + + pb = MP_DIGITS(b); + s_bmul_d(MP_DIGITS(a), MP_USED(a), *pb++, MP_DIGITS(c)); + + /* Outer loop: Digits of b */ + a_used = MP_USED(a); + b_used = MP_USED(b); + MP_USED(c) = a_used + b_used; + for (ib = 1; ib < b_used; ib++) { + b_i = *pb++; + + /* Inner product: Digits of a */ + if (b_i) + s_bmul_d_add(MP_DIGITS(a), a_used, b_i, MP_DIGITS(c) + ib); + else + MP_DIGIT(c, ib + a_used) = b_i; + } + + s_mp_clamp(c); + + SIGN(c) = ZPOS; + +CLEANUP: + mp_clear(&tmp); + return res; +} + + +/* Compute modular reduction of a and store result in r. + * r could be a. + * For modular arithmetic, the irreducible polynomial f(t) is represented + * as an array of int[], where f(t) is of the form: + * f(t) = t^p[0] + t^p[1] + ... + t^p[k] + * where m = p[0] > p[1] > ... > p[k] = 0. + */ +mp_err +mp_bmod(const mp_int *a, const unsigned int p[], mp_int *r) +{ + int j, k; + int n, dN, d0, d1; + mp_digit zz, *z, tmp; + mp_size used; + mp_err res = MP_OKAY; + + /* The algorithm does the reduction in place in r, + * if a != r, copy a into r first so reduction can be done in r + */ + if (a != r) { + MP_CHECKOK( mp_copy(a, r) ); + } + z = MP_DIGITS(r); + + /* start reduction */ + dN = p[0] / MP_DIGIT_BITS; + used = MP_USED(r); + + for (j = used - 1; j > dN;) { + + zz = z[j]; + if (zz == 0) { + j--; continue; + } + z[j] = 0; + + for (k = 1; p[k] > 0; k++) { + /* reducing component t^p[k] */ + n = p[0] - p[k]; + d0 = n % MP_DIGIT_BITS; + d1 = MP_DIGIT_BITS - d0; + n /= MP_DIGIT_BITS; + z[j-n] ^= (zz>>d0); + if (d0) + z[j-n-1] ^= (zz<> d0); + if (d0) + z[j-n-1] ^= (zz << d1); + + } + + /* final round of reduction */ + while (j == dN) { + + d0 = p[0] % MP_DIGIT_BITS; + zz = z[dN] >> d0; + if (zz == 0) break; + d1 = MP_DIGIT_BITS - d0; + + /* clear up the top d1 bits */ + if (d0) z[dN] = (z[dN] << d1) >> d1; + *z ^= zz; /* reduction t^0 component */ + + for (k = 1; p[k] > 0; k++) { + /* reducing component t^p[k]*/ + n = p[k] / MP_DIGIT_BITS; + d0 = p[k] % MP_DIGIT_BITS; + d1 = MP_DIGIT_BITS - d0; + z[n] ^= (zz << d0); + tmp = zz >> d1; + if (d0 && tmp) + z[n+1] ^= tmp; + } + } + + s_mp_clamp(r); +CLEANUP: + return res; +} + +/* Compute the product of two polynomials a and b, reduce modulo p, + * Store the result in r. r could be a or b; a could be b. + */ +mp_err +mp_bmulmod(const mp_int *a, const mp_int *b, const unsigned int p[], mp_int *r) +{ + mp_err res; + + if (a == b) return mp_bsqrmod(a, p, r); + if ((res = mp_bmul(a, b, r) ) != MP_OKAY) + return res; + return mp_bmod(r, p, r); +} + +/* Compute binary polynomial squaring c = a*a mod p . + * Parameter r and a can be identical. + */ + +mp_err +mp_bsqrmod(const mp_int *a, const unsigned int p[], mp_int *r) +{ + mp_digit *pa, *pr, a_i; + mp_int tmp; + mp_size ia, a_used; + mp_err res; + + ARGCHK(a != NULL && r != NULL, MP_BADARG); + MP_DIGITS(&tmp) = 0; + + if (a == r) { + MP_CHECKOK( mp_init_copy(&tmp, a) ); + a = &tmp; + } + + MP_USED(r) = 1; MP_DIGIT(r, 0) = 0; + MP_CHECKOK( s_mp_pad(r, 2*USED(a)) ); + + pa = MP_DIGITS(a); + pr = MP_DIGITS(r); + a_used = MP_USED(a); + MP_USED(r) = 2 * a_used; + + for (ia = 0; ia < a_used; ia++) { + a_i = *pa++; + *pr++ = gf2m_SQR0(a_i); + *pr++ = gf2m_SQR1(a_i); + } + + MP_CHECKOK( mp_bmod(r, p, r) ); + s_mp_clamp(r); + SIGN(r) = ZPOS; + +CLEANUP: + mp_clear(&tmp); + return res; +} + +/* Compute binary polynomial y/x mod p, y divided by x, reduce modulo p. + * Store the result in r. r could be x or y, and x could equal y. + * Uses algorithm Modular_Division_GF(2^m) from + * Chang-Shantz, S. "From Euclid's GCD to Montgomery Multiplication to + * the Great Divide". + */ +int +mp_bdivmod(const mp_int *y, const mp_int *x, const mp_int *pp, + const unsigned int p[], mp_int *r) +{ + mp_int aa, bb, uu; + mp_int *a, *b, *u, *v; + mp_err res = MP_OKAY; + + MP_DIGITS(&aa) = 0; + MP_DIGITS(&bb) = 0; + MP_DIGITS(&uu) = 0; + + MP_CHECKOK( mp_init_copy(&aa, x) ); + MP_CHECKOK( mp_init_copy(&uu, y) ); + MP_CHECKOK( mp_init_copy(&bb, pp) ); + MP_CHECKOK( s_mp_pad(r, USED(pp)) ); + MP_USED(r) = 1; MP_DIGIT(r, 0) = 0; + + a = &aa; b= &bb; u=&uu; v=r; + /* reduce x and y mod p */ + MP_CHECKOK( mp_bmod(a, p, a) ); + MP_CHECKOK( mp_bmod(u, p, u) ); + + while (!mp_isodd(a)) { + s_mp_div2(a); + if (mp_isodd(u)) { + MP_CHECKOK( mp_badd(u, pp, u) ); + } + s_mp_div2(u); + } + + do { + if (mp_cmp_mag(b, a) > 0) { + MP_CHECKOK( mp_badd(b, a, b) ); + MP_CHECKOK( mp_badd(v, u, v) ); + do { + s_mp_div2(b); + if (mp_isodd(v)) { + MP_CHECKOK( mp_badd(v, pp, v) ); + } + s_mp_div2(v); + } while (!mp_isodd(b)); + } + else if ((MP_DIGIT(a,0) == 1) && (MP_USED(a) == 1)) + break; + else { + MP_CHECKOK( mp_badd(a, b, a) ); + MP_CHECKOK( mp_badd(u, v, u) ); + do { + s_mp_div2(a); + if (mp_isodd(u)) { + MP_CHECKOK( mp_badd(u, pp, u) ); + } + s_mp_div2(u); + } while (!mp_isodd(a)); + } + } while (1); + + MP_CHECKOK( mp_copy(u, r) ); + +CLEANUP: + /* XXX this appears to be a memory leak in the NSS code */ + mp_clear(&aa); + mp_clear(&bb); + mp_clear(&uu); + return res; + +} + +/* Convert the bit-string representation of a polynomial a into an array + * of integers corresponding to the bits with non-zero coefficient. + * Up to max elements of the array will be filled. Return value is total + * number of coefficients that would be extracted if array was large enough. + */ +int +mp_bpoly2arr(const mp_int *a, unsigned int p[], int max) +{ + int i, j, k; + mp_digit top_bit, mask; + + top_bit = 1; + top_bit <<= MP_DIGIT_BIT - 1; + + for (k = 0; k < max; k++) p[k] = 0; + k = 0; + + for (i = MP_USED(a) - 1; i >= 0; i--) { + mask = top_bit; + for (j = MP_DIGIT_BIT - 1; j >= 0; j--) { + if (MP_DIGITS(a)[i] & mask) { + if (k < max) p[k] = MP_DIGIT_BIT * i + j; + k++; + } + mask >>= 1; + } + } + + return k; +} + +/* Convert the coefficient array representation of a polynomial to a + * bit-string. The array must be terminated by 0. + */ +mp_err +mp_barr2poly(const unsigned int p[], mp_int *a) +{ + + mp_err res = MP_OKAY; + int i; + + mp_zero(a); + for (i = 0; p[i] > 0; i++) { + MP_CHECKOK( mpl_set_bit(a, p[i], 1) ); + } + MP_CHECKOK( mpl_set_bit(a, 0, 1) ); + +CLEANUP: + return res; +} diff --git a/src/share/native/sun/security/ec/impl/mp_gf2m.h b/src/share/native/sun/security/ec/impl/mp_gf2m.h new file mode 100644 index 000000000..b09f3d343 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mp_gf2m.h @@ -0,0 +1,83 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Multi-precision Binary Polynomial Arithmetic Library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang Shantz and + * Douglas Stebila of Sun Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MP_GF2M_H_ +#define _MP_GF2M_H_ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi.h" + +mp_err mp_badd(const mp_int *a, const mp_int *b, mp_int *c); +mp_err mp_bmul(const mp_int *a, const mp_int *b, mp_int *c); + +/* For modular arithmetic, the irreducible polynomial f(t) is represented + * as an array of int[], where f(t) is of the form: + * f(t) = t^p[0] + t^p[1] + ... + t^p[k] + * where m = p[0] > p[1] > ... > p[k] = 0. + */ +mp_err mp_bmod(const mp_int *a, const unsigned int p[], mp_int *r); +mp_err mp_bmulmod(const mp_int *a, const mp_int *b, const unsigned int p[], + mp_int *r); +mp_err mp_bsqrmod(const mp_int *a, const unsigned int p[], mp_int *r); +mp_err mp_bdivmod(const mp_int *y, const mp_int *x, const mp_int *pp, + const unsigned int p[], mp_int *r); + +int mp_bpoly2arr(const mp_int *a, unsigned int p[], int max); +mp_err mp_barr2poly(const unsigned int p[], mp_int *a); + +#endif /* _MP_GF2M_H_ */ diff --git a/src/share/native/sun/security/ec/impl/mpi-config.h b/src/share/native/sun/security/ec/impl/mpi-config.h new file mode 100644 index 000000000..3618677a9 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpi-config.h @@ -0,0 +1,130 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1997 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Netscape Communications Corporation + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MPI_CONFIG_H +#define _MPI_CONFIG_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mpi-config.h,v 1.5 2004/04/25 15:03:10 gerv%gerv.net Exp $ */ + +/* + For boolean options, + 0 = no + 1 = yes + + Other options are documented individually. + + */ + +#ifndef MP_IOFUNC +#define MP_IOFUNC 0 /* include mp_print() ? */ +#endif + +#ifndef MP_MODARITH +#define MP_MODARITH 1 /* include modular arithmetic ? */ +#endif + +#ifndef MP_NUMTH +#define MP_NUMTH 1 /* include number theoretic functions? */ +#endif + +#ifndef MP_LOGTAB +#define MP_LOGTAB 1 /* use table of logs instead of log()? */ +#endif + +#ifndef MP_MEMSET +#define MP_MEMSET 1 /* use memset() to zero buffers? */ +#endif + +#ifndef MP_MEMCPY +#define MP_MEMCPY 1 /* use memcpy() to copy buffers? */ +#endif + +#ifndef MP_CRYPTO +#define MP_CRYPTO 1 /* erase memory on free? */ +#endif + +#ifndef MP_ARGCHK +/* + 0 = no parameter checks + 1 = runtime checks, continue execution and return an error to caller + 2 = assertions; dump core on parameter errors + */ +#ifdef DEBUG +#define MP_ARGCHK 2 /* how to check input arguments */ +#else +#define MP_ARGCHK 1 /* how to check input arguments */ +#endif +#endif + +#ifndef MP_DEBUG +#define MP_DEBUG 0 /* print diagnostic output? */ +#endif + +#ifndef MP_DEFPREC +#define MP_DEFPREC 64 /* default precision, in digits */ +#endif + +#ifndef MP_MACRO +#define MP_MACRO 0 /* use macros for frequent calls? */ +#endif + +#ifndef MP_SQUARE +#define MP_SQUARE 1 /* use separate squaring code? */ +#endif + +#endif /* _MPI_CONFIG_H */ diff --git a/src/share/native/sun/security/ec/impl/mpi-priv.h b/src/share/native/sun/security/ec/impl/mpi-priv.h new file mode 100644 index 000000000..b2b07ec32 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpi-priv.h @@ -0,0 +1,340 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Arbitrary precision integer arithmetic library + * + * NOTE WELL: the content of this header file is NOT part of the "public" + * API for the MPI library, and may change at any time. + * Application programs that use libmpi should NOT include this header file. + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Netscape Communications Corporation + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MPI_PRIV_H +#define _MPI_PRIV_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mpi-priv.h,v 1.20 2005/11/22 07:16:43 relyea%netscape.com Exp $ */ + +#include "mpi.h" +#ifndef _KERNEL +#include +#include +#include +#endif /* _KERNEL */ + +#if MP_DEBUG +#include + +#define DIAG(T,V) {fprintf(stderr,T);mp_print(V,stderr);fputc('\n',stderr);} +#else +#define DIAG(T,V) +#endif + +/* If we aren't using a wired-in logarithm table, we need to include + the math library to get the log() function + */ + +/* {{{ s_logv_2[] - log table for 2 in various bases */ + +#if MP_LOGTAB +/* + A table of the logs of 2 for various bases (the 0 and 1 entries of + this table are meaningless and should not be referenced). + + This table is used to compute output lengths for the mp_toradix() + function. Since a number n in radix r takes up about log_r(n) + digits, we estimate the output size by taking the least integer + greater than log_r(n), where: + + log_r(n) = log_2(n) * log_r(2) + + This table, therefore, is a table of log_r(2) for 2 <= r <= 36, + which are the output bases supported. + */ + +extern const float s_logv_2[]; +#define LOG_V_2(R) s_logv_2[(R)] + +#else + +/* + If MP_LOGTAB is not defined, use the math library to compute the + logarithms on the fly. Otherwise, use the table. + Pick which works best for your system. + */ + +#include +#define LOG_V_2(R) (log(2.0)/log(R)) + +#endif /* if MP_LOGTAB */ + +/* }}} */ + +/* {{{ Digit arithmetic macros */ + +/* + When adding and multiplying digits, the results can be larger than + can be contained in an mp_digit. Thus, an mp_word is used. These + macros mask off the upper and lower digits of the mp_word (the + mp_word may be more than 2 mp_digits wide, but we only concern + ourselves with the low-order 2 mp_digits) + */ + +#define CARRYOUT(W) (mp_digit)((W)>>DIGIT_BIT) +#define ACCUM(W) (mp_digit)(W) + +#define MP_MIN(a,b) (((a) < (b)) ? (a) : (b)) +#define MP_MAX(a,b) (((a) > (b)) ? (a) : (b)) +#define MP_HOWMANY(a,b) (((a) + (b) - 1)/(b)) +#define MP_ROUNDUP(a,b) (MP_HOWMANY(a,b) * (b)) + +/* }}} */ + +/* {{{ Comparison constants */ + +#define MP_LT -1 +#define MP_EQ 0 +#define MP_GT 1 + +/* }}} */ + +/* {{{ private function declarations */ + +/* + If MP_MACRO is false, these will be defined as actual functions; + otherwise, suitable macro definitions will be used. This works + around the fact that ANSI C89 doesn't support an 'inline' keyword + (although I hear C9x will ... about bloody time). At present, the + macro definitions are identical to the function bodies, but they'll + expand in place, instead of generating a function call. + + I chose these particular functions to be made into macros because + some profiling showed they are called a lot on a typical workload, + and yet they are primarily housekeeping. + */ +#if MP_MACRO == 0 + void s_mp_setz(mp_digit *dp, mp_size count); /* zero digits */ + void s_mp_copy(const mp_digit *sp, mp_digit *dp, mp_size count); /* copy */ + void *s_mp_alloc(size_t nb, size_t ni, int flag); /* general allocator */ + void s_mp_free(void *ptr, mp_size); /* general free function */ +extern unsigned long mp_allocs; +extern unsigned long mp_frees; +extern unsigned long mp_copies; +#else + + /* Even if these are defined as macros, we need to respect the settings + of the MP_MEMSET and MP_MEMCPY configuration options... + */ + #if MP_MEMSET == 0 + #define s_mp_setz(dp, count) \ + {int ix;for(ix=0;ix<(count);ix++)(dp)[ix]=0;} + #else + #define s_mp_setz(dp, count) memset(dp, 0, (count) * sizeof(mp_digit)) + #endif /* MP_MEMSET */ + + #if MP_MEMCPY == 0 + #define s_mp_copy(sp, dp, count) \ + {int ix;for(ix=0;ix<(count);ix++)(dp)[ix]=(sp)[ix];} + #else + #define s_mp_copy(sp, dp, count) memcpy(dp, sp, (count) * sizeof(mp_digit)) + #endif /* MP_MEMCPY */ + + #define s_mp_alloc(nb, ni) calloc(nb, ni) + #define s_mp_free(ptr) {if(ptr) free(ptr);} +#endif /* MP_MACRO */ + +mp_err s_mp_grow(mp_int *mp, mp_size min); /* increase allocated size */ +mp_err s_mp_pad(mp_int *mp, mp_size min); /* left pad with zeroes */ + +#if MP_MACRO == 0 + void s_mp_clamp(mp_int *mp); /* clip leading zeroes */ +#else + #define s_mp_clamp(mp)\ + { mp_size used = MP_USED(mp); \ + while (used > 1 && DIGIT(mp, used - 1) == 0) --used; \ + MP_USED(mp) = used; \ + } +#endif /* MP_MACRO */ + +void s_mp_exch(mp_int *a, mp_int *b); /* swap a and b in place */ + +mp_err s_mp_lshd(mp_int *mp, mp_size p); /* left-shift by p digits */ +void s_mp_rshd(mp_int *mp, mp_size p); /* right-shift by p digits */ +mp_err s_mp_mul_2d(mp_int *mp, mp_digit d); /* multiply by 2^d in place */ +void s_mp_div_2d(mp_int *mp, mp_digit d); /* divide by 2^d in place */ +void s_mp_mod_2d(mp_int *mp, mp_digit d); /* modulo 2^d in place */ +void s_mp_div_2(mp_int *mp); /* divide by 2 in place */ +mp_err s_mp_mul_2(mp_int *mp); /* multiply by 2 in place */ +mp_err s_mp_norm(mp_int *a, mp_int *b, mp_digit *pd); + /* normalize for division */ +mp_err s_mp_add_d(mp_int *mp, mp_digit d); /* unsigned digit addition */ +mp_err s_mp_sub_d(mp_int *mp, mp_digit d); /* unsigned digit subtract */ +mp_err s_mp_mul_d(mp_int *mp, mp_digit d); /* unsigned digit multiply */ +mp_err s_mp_div_d(mp_int *mp, mp_digit d, mp_digit *r); + /* unsigned digit divide */ +mp_err s_mp_reduce(mp_int *x, const mp_int *m, const mp_int *mu); + /* Barrett reduction */ +mp_err s_mp_add(mp_int *a, const mp_int *b); /* magnitude addition */ +mp_err s_mp_add_3arg(const mp_int *a, const mp_int *b, mp_int *c); +mp_err s_mp_sub(mp_int *a, const mp_int *b); /* magnitude subtract */ +mp_err s_mp_sub_3arg(const mp_int *a, const mp_int *b, mp_int *c); +mp_err s_mp_add_offset(mp_int *a, mp_int *b, mp_size offset); + /* a += b * RADIX^offset */ +mp_err s_mp_mul(mp_int *a, const mp_int *b); /* magnitude multiply */ +#if MP_SQUARE +mp_err s_mp_sqr(mp_int *a); /* magnitude square */ +#else +#define s_mp_sqr(a) s_mp_mul(a, a) +#endif +mp_err s_mp_div(mp_int *rem, mp_int *div, mp_int *quot); /* magnitude div */ +mp_err s_mp_exptmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c); +mp_err s_mp_2expt(mp_int *a, mp_digit k); /* a = 2^k */ +int s_mp_cmp(const mp_int *a, const mp_int *b); /* magnitude comparison */ +int s_mp_cmp_d(const mp_int *a, mp_digit d); /* magnitude digit compare */ +int s_mp_ispow2(const mp_int *v); /* is v a power of 2? */ +int s_mp_ispow2d(mp_digit d); /* is d a power of 2? */ + +int s_mp_tovalue(char ch, int r); /* convert ch to value */ +char s_mp_todigit(mp_digit val, int r, int low); /* convert val to digit */ +int s_mp_outlen(int bits, int r); /* output length in bytes */ +mp_digit s_mp_invmod_radix(mp_digit P); /* returns (P ** -1) mod RADIX */ +mp_err s_mp_invmod_odd_m( const mp_int *a, const mp_int *m, mp_int *c); +mp_err s_mp_invmod_2d( const mp_int *a, mp_size k, mp_int *c); +mp_err s_mp_invmod_even_m(const mp_int *a, const mp_int *m, mp_int *c); + +#ifdef NSS_USE_COMBA + +#define IS_POWER_OF_2(a) ((a) && !((a) & ((a)-1))) + +void s_mp_mul_comba_4(const mp_int *A, const mp_int *B, mp_int *C); +void s_mp_mul_comba_8(const mp_int *A, const mp_int *B, mp_int *C); +void s_mp_mul_comba_16(const mp_int *A, const mp_int *B, mp_int *C); +void s_mp_mul_comba_32(const mp_int *A, const mp_int *B, mp_int *C); + +void s_mp_sqr_comba_4(const mp_int *A, mp_int *B); +void s_mp_sqr_comba_8(const mp_int *A, mp_int *B); +void s_mp_sqr_comba_16(const mp_int *A, mp_int *B); +void s_mp_sqr_comba_32(const mp_int *A, mp_int *B); + +#endif /* end NSS_USE_COMBA */ + +/* ------ mpv functions, operate on arrays of digits, not on mp_int's ------ */ +#if defined (__OS2__) && defined (__IBMC__) +#define MPI_ASM_DECL __cdecl +#else +#define MPI_ASM_DECL +#endif + +#ifdef MPI_AMD64 + +mp_digit MPI_ASM_DECL s_mpv_mul_set_vec64(mp_digit*, mp_digit *, mp_size, mp_digit); +mp_digit MPI_ASM_DECL s_mpv_mul_add_vec64(mp_digit*, const mp_digit*, mp_size, mp_digit); + +/* c = a * b */ +#define s_mpv_mul_d(a, a_len, b, c) \ + ((unsigned long*)c)[a_len] = s_mpv_mul_set_vec64(c, a, a_len, b) + +/* c += a * b */ +#define s_mpv_mul_d_add(a, a_len, b, c) \ + ((unsigned long*)c)[a_len] = s_mpv_mul_add_vec64(c, a, a_len, b) + +#else + +void MPI_ASM_DECL s_mpv_mul_d(const mp_digit *a, mp_size a_len, + mp_digit b, mp_digit *c); +void MPI_ASM_DECL s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, + mp_digit b, mp_digit *c); + +#endif + +void MPI_ASM_DECL s_mpv_mul_d_add_prop(const mp_digit *a, + mp_size a_len, mp_digit b, + mp_digit *c); +void MPI_ASM_DECL s_mpv_sqr_add_prop(const mp_digit *a, + mp_size a_len, + mp_digit *sqrs); + +mp_err MPI_ASM_DECL s_mpv_div_2dx1d(mp_digit Nhi, mp_digit Nlo, + mp_digit divisor, mp_digit *quot, mp_digit *rem); + +/* c += a * b * (MP_RADIX ** offset); */ +#define s_mp_mul_d_add_offset(a, b, c, off) \ +(s_mpv_mul_d_add_prop(MP_DIGITS(a), MP_USED(a), b, MP_DIGITS(c) + off), MP_OKAY) + +typedef struct { + mp_int N; /* modulus N */ + mp_digit n0prime; /* n0' = - (n0 ** -1) mod MP_RADIX */ + mp_size b; /* R == 2 ** b, also b = # significant bits in N */ +} mp_mont_modulus; + +mp_err s_mp_mul_mont(const mp_int *a, const mp_int *b, mp_int *c, + mp_mont_modulus *mmm); +mp_err s_mp_redc(mp_int *T, mp_mont_modulus *mmm); + +/* + * s_mpi_getProcessorLineSize() returns the size in bytes of the cache line + * if a cache exists, or zero if there is no cache. If more than one + * cache line exists, it should return the smallest line size (which is + * usually the L1 cache). + * + * mp_modexp uses this information to make sure that private key information + * isn't being leaked through the cache. + * + * see mpcpucache.c for the implementation. + */ +unsigned long s_mpi_getProcessorLineSize(); + +/* }}} */ +#endif /* _MPI_PRIV_H */ diff --git a/src/share/native/sun/security/ec/impl/mpi.c b/src/share/native/sun/security/ec/impl/mpi.c new file mode 100644 index 000000000..9f771882b --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpi.c @@ -0,0 +1,4886 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * + * Arbitrary precision integer arithmetic library + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Netscape Communications Corporation + * Douglas Stebila of Sun Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mpi.c,v 1.45 2006/09/29 20:12:21 alexei.volkov.bugs%sun.com Exp $ */ + +#include "mpi-priv.h" +#if defined(OSF1) +#include +#endif + +#if MP_LOGTAB +/* + A table of the logs of 2 for various bases (the 0 and 1 entries of + this table are meaningless and should not be referenced). + + This table is used to compute output lengths for the mp_toradix() + function. Since a number n in radix r takes up about log_r(n) + digits, we estimate the output size by taking the least integer + greater than log_r(n), where: + + log_r(n) = log_2(n) * log_r(2) + + This table, therefore, is a table of log_r(2) for 2 <= r <= 36, + which are the output bases supported. + */ +#include "logtab.h" +#endif + +/* {{{ Constant strings */ + +/* Constant strings returned by mp_strerror() */ +static const char *mp_err_string[] = { + "unknown result code", /* say what? */ + "boolean true", /* MP_OKAY, MP_YES */ + "boolean false", /* MP_NO */ + "out of memory", /* MP_MEM */ + "argument out of range", /* MP_RANGE */ + "invalid input parameter", /* MP_BADARG */ + "result is undefined" /* MP_UNDEF */ +}; + +/* Value to digit maps for radix conversion */ + +/* s_dmap_1 - standard digits and letters */ +static const char *s_dmap_1 = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/"; + +/* }}} */ + +unsigned long mp_allocs; +unsigned long mp_frees; +unsigned long mp_copies; + +/* {{{ Default precision manipulation */ + +/* Default precision for newly created mp_int's */ +static mp_size s_mp_defprec = MP_DEFPREC; + +mp_size mp_get_prec(void) +{ + return s_mp_defprec; + +} /* end mp_get_prec() */ + +void mp_set_prec(mp_size prec) +{ + if(prec == 0) + s_mp_defprec = MP_DEFPREC; + else + s_mp_defprec = prec; + +} /* end mp_set_prec() */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ mp_init(mp, kmflag) */ + +/* + mp_init(mp, kmflag) + + Initialize a new zero-valued mp_int. Returns MP_OKAY if successful, + MP_MEM if memory could not be allocated for the structure. + */ + +mp_err mp_init(mp_int *mp, int kmflag) +{ + return mp_init_size(mp, s_mp_defprec, kmflag); + +} /* end mp_init() */ + +/* }}} */ + +/* {{{ mp_init_size(mp, prec, kmflag) */ + +/* + mp_init_size(mp, prec, kmflag) + + Initialize a new zero-valued mp_int with at least the given + precision; returns MP_OKAY if successful, or MP_MEM if memory could + not be allocated for the structure. + */ + +mp_err mp_init_size(mp_int *mp, mp_size prec, int kmflag) +{ + ARGCHK(mp != NULL && prec > 0, MP_BADARG); + + prec = MP_ROUNDUP(prec, s_mp_defprec); + if((DIGITS(mp) = s_mp_alloc(prec, sizeof(mp_digit), kmflag)) == NULL) + return MP_MEM; + + SIGN(mp) = ZPOS; + USED(mp) = 1; + ALLOC(mp) = prec; + + return MP_OKAY; + +} /* end mp_init_size() */ + +/* }}} */ + +/* {{{ mp_init_copy(mp, from) */ + +/* + mp_init_copy(mp, from) + + Initialize mp as an exact copy of from. Returns MP_OKAY if + successful, MP_MEM if memory could not be allocated for the new + structure. + */ + +mp_err mp_init_copy(mp_int *mp, const mp_int *from) +{ + ARGCHK(mp != NULL && from != NULL, MP_BADARG); + + if(mp == from) + return MP_OKAY; + + if((DIGITS(mp) = s_mp_alloc(ALLOC(from), sizeof(mp_digit), FLAG(from))) == NULL) + return MP_MEM; + + s_mp_copy(DIGITS(from), DIGITS(mp), USED(from)); + USED(mp) = USED(from); + ALLOC(mp) = ALLOC(from); + SIGN(mp) = SIGN(from); + +#ifndef _WIN32 + FLAG(mp) = FLAG(from); +#endif /* _WIN32 */ + + return MP_OKAY; + +} /* end mp_init_copy() */ + +/* }}} */ + +/* {{{ mp_copy(from, to) */ + +/* + mp_copy(from, to) + + Copies the mp_int 'from' to the mp_int 'to'. It is presumed that + 'to' has already been initialized (if not, use mp_init_copy() + instead). If 'from' and 'to' are identical, nothing happens. + */ + +mp_err mp_copy(const mp_int *from, mp_int *to) +{ + ARGCHK(from != NULL && to != NULL, MP_BADARG); + + if(from == to) + return MP_OKAY; + + ++mp_copies; + { /* copy */ + mp_digit *tmp; + + /* + If the allocated buffer in 'to' already has enough space to hold + all the used digits of 'from', we'll re-use it to avoid hitting + the memory allocater more than necessary; otherwise, we'd have + to grow anyway, so we just allocate a hunk and make the copy as + usual + */ + if(ALLOC(to) >= USED(from)) { + s_mp_setz(DIGITS(to) + USED(from), ALLOC(to) - USED(from)); + s_mp_copy(DIGITS(from), DIGITS(to), USED(from)); + + } else { + if((tmp = s_mp_alloc(ALLOC(from), sizeof(mp_digit), FLAG(from))) == NULL) + return MP_MEM; + + s_mp_copy(DIGITS(from), tmp, USED(from)); + + if(DIGITS(to) != NULL) { +#if MP_CRYPTO + s_mp_setz(DIGITS(to), ALLOC(to)); +#endif + s_mp_free(DIGITS(to), ALLOC(to)); + } + + DIGITS(to) = tmp; + ALLOC(to) = ALLOC(from); + } + + /* Copy the precision and sign from the original */ + USED(to) = USED(from); + SIGN(to) = SIGN(from); + } /* end copy */ + + return MP_OKAY; + +} /* end mp_copy() */ + +/* }}} */ + +/* {{{ mp_exch(mp1, mp2) */ + +/* + mp_exch(mp1, mp2) + + Exchange mp1 and mp2 without allocating any intermediate memory + (well, unless you count the stack space needed for this call and the + locals it creates...). This cannot fail. + */ + +void mp_exch(mp_int *mp1, mp_int *mp2) +{ +#if MP_ARGCHK == 2 + assert(mp1 != NULL && mp2 != NULL); +#else + if(mp1 == NULL || mp2 == NULL) + return; +#endif + + s_mp_exch(mp1, mp2); + +} /* end mp_exch() */ + +/* }}} */ + +/* {{{ mp_clear(mp) */ + +/* + mp_clear(mp) + + Release the storage used by an mp_int, and void its fields so that + if someone calls mp_clear() again for the same int later, we won't + get tollchocked. + */ + +void mp_clear(mp_int *mp) +{ + if(mp == NULL) + return; + + if(DIGITS(mp) != NULL) { +#if MP_CRYPTO + s_mp_setz(DIGITS(mp), ALLOC(mp)); +#endif + s_mp_free(DIGITS(mp), ALLOC(mp)); + DIGITS(mp) = NULL; + } + + USED(mp) = 0; + ALLOC(mp) = 0; + +} /* end mp_clear() */ + +/* }}} */ + +/* {{{ mp_zero(mp) */ + +/* + mp_zero(mp) + + Set mp to zero. Does not change the allocated size of the structure, + and therefore cannot fail (except on a bad argument, which we ignore) + */ +void mp_zero(mp_int *mp) +{ + if(mp == NULL) + return; + + s_mp_setz(DIGITS(mp), ALLOC(mp)); + USED(mp) = 1; + SIGN(mp) = ZPOS; + +} /* end mp_zero() */ + +/* }}} */ + +/* {{{ mp_set(mp, d) */ + +void mp_set(mp_int *mp, mp_digit d) +{ + if(mp == NULL) + return; + + mp_zero(mp); + DIGIT(mp, 0) = d; + +} /* end mp_set() */ + +/* }}} */ + +/* {{{ mp_set_int(mp, z) */ + +mp_err mp_set_int(mp_int *mp, long z) +{ + int ix; + unsigned long v = labs(z); + mp_err res; + + ARGCHK(mp != NULL, MP_BADARG); + + mp_zero(mp); + if(z == 0) + return MP_OKAY; /* shortcut for zero */ + + if (sizeof v <= sizeof(mp_digit)) { + DIGIT(mp,0) = v; + } else { + for (ix = sizeof(long) - 1; ix >= 0; ix--) { + if ((res = s_mp_mul_d(mp, (UCHAR_MAX + 1))) != MP_OKAY) + return res; + + res = s_mp_add_d(mp, (mp_digit)((v >> (ix * CHAR_BIT)) & UCHAR_MAX)); + if (res != MP_OKAY) + return res; + } + } + if(z < 0) + SIGN(mp) = NEG; + + return MP_OKAY; + +} /* end mp_set_int() */ + +/* }}} */ + +/* {{{ mp_set_ulong(mp, z) */ + +mp_err mp_set_ulong(mp_int *mp, unsigned long z) +{ + int ix; + mp_err res; + + ARGCHK(mp != NULL, MP_BADARG); + + mp_zero(mp); + if(z == 0) + return MP_OKAY; /* shortcut for zero */ + + if (sizeof z <= sizeof(mp_digit)) { + DIGIT(mp,0) = z; + } else { + for (ix = sizeof(long) - 1; ix >= 0; ix--) { + if ((res = s_mp_mul_d(mp, (UCHAR_MAX + 1))) != MP_OKAY) + return res; + + res = s_mp_add_d(mp, (mp_digit)((z >> (ix * CHAR_BIT)) & UCHAR_MAX)); + if (res != MP_OKAY) + return res; + } + } + return MP_OKAY; +} /* end mp_set_ulong() */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ Digit arithmetic */ + +/* {{{ mp_add_d(a, d, b) */ + +/* + mp_add_d(a, d, b) + + Compute the sum b = a + d, for a single digit d. Respects the sign of + its primary addend (single digits are unsigned anyway). + */ + +mp_err mp_add_d(const mp_int *a, mp_digit d, mp_int *b) +{ + mp_int tmp; + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_init_copy(&tmp, a)) != MP_OKAY) + return res; + + if(SIGN(&tmp) == ZPOS) { + if((res = s_mp_add_d(&tmp, d)) != MP_OKAY) + goto CLEANUP; + } else if(s_mp_cmp_d(&tmp, d) >= 0) { + if((res = s_mp_sub_d(&tmp, d)) != MP_OKAY) + goto CLEANUP; + } else { + mp_neg(&tmp, &tmp); + + DIGIT(&tmp, 0) = d - DIGIT(&tmp, 0); + } + + if(s_mp_cmp_d(&tmp, 0) == 0) + SIGN(&tmp) = ZPOS; + + s_mp_exch(&tmp, b); + +CLEANUP: + mp_clear(&tmp); + return res; + +} /* end mp_add_d() */ + +/* }}} */ + +/* {{{ mp_sub_d(a, d, b) */ + +/* + mp_sub_d(a, d, b) + + Compute the difference b = a - d, for a single digit d. Respects the + sign of its subtrahend (single digits are unsigned anyway). + */ + +mp_err mp_sub_d(const mp_int *a, mp_digit d, mp_int *b) +{ + mp_int tmp; + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_init_copy(&tmp, a)) != MP_OKAY) + return res; + + if(SIGN(&tmp) == NEG) { + if((res = s_mp_add_d(&tmp, d)) != MP_OKAY) + goto CLEANUP; + } else if(s_mp_cmp_d(&tmp, d) >= 0) { + if((res = s_mp_sub_d(&tmp, d)) != MP_OKAY) + goto CLEANUP; + } else { + mp_neg(&tmp, &tmp); + + DIGIT(&tmp, 0) = d - DIGIT(&tmp, 0); + SIGN(&tmp) = NEG; + } + + if(s_mp_cmp_d(&tmp, 0) == 0) + SIGN(&tmp) = ZPOS; + + s_mp_exch(&tmp, b); + +CLEANUP: + mp_clear(&tmp); + return res; + +} /* end mp_sub_d() */ + +/* }}} */ + +/* {{{ mp_mul_d(a, d, b) */ + +/* + mp_mul_d(a, d, b) + + Compute the product b = a * d, for a single digit d. Respects the sign + of its multiplicand (single digits are unsigned anyway) + */ + +mp_err mp_mul_d(const mp_int *a, mp_digit d, mp_int *b) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if(d == 0) { + mp_zero(b); + return MP_OKAY; + } + + if((res = mp_copy(a, b)) != MP_OKAY) + return res; + + res = s_mp_mul_d(b, d); + + return res; + +} /* end mp_mul_d() */ + +/* }}} */ + +/* {{{ mp_mul_2(a, c) */ + +mp_err mp_mul_2(const mp_int *a, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && c != NULL, MP_BADARG); + + if((res = mp_copy(a, c)) != MP_OKAY) + return res; + + return s_mp_mul_2(c); + +} /* end mp_mul_2() */ + +/* }}} */ + +/* {{{ mp_div_d(a, d, q, r) */ + +/* + mp_div_d(a, d, q, r) + + Compute the quotient q = a / d and remainder r = a mod d, for a + single digit d. Respects the sign of its divisor (single digits are + unsigned anyway). + */ + +mp_err mp_div_d(const mp_int *a, mp_digit d, mp_int *q, mp_digit *r) +{ + mp_err res; + mp_int qp; + mp_digit rem; + int pow; + + ARGCHK(a != NULL, MP_BADARG); + + if(d == 0) + return MP_RANGE; + + /* Shortcut for powers of two ... */ + if((pow = s_mp_ispow2d(d)) >= 0) { + mp_digit mask; + + mask = ((mp_digit)1 << pow) - 1; + rem = DIGIT(a, 0) & mask; + + if(q) { + mp_copy(a, q); + s_mp_div_2d(q, pow); + } + + if(r) + *r = rem; + + return MP_OKAY; + } + + if((res = mp_init_copy(&qp, a)) != MP_OKAY) + return res; + + res = s_mp_div_d(&qp, d, &rem); + + if(s_mp_cmp_d(&qp, 0) == 0) + SIGN(q) = ZPOS; + + if(r) + *r = rem; + + if(q) + s_mp_exch(&qp, q); + + mp_clear(&qp); + return res; + +} /* end mp_div_d() */ + +/* }}} */ + +/* {{{ mp_div_2(a, c) */ + +/* + mp_div_2(a, c) + + Compute c = a / 2, disregarding the remainder. + */ + +mp_err mp_div_2(const mp_int *a, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && c != NULL, MP_BADARG); + + if((res = mp_copy(a, c)) != MP_OKAY) + return res; + + s_mp_div_2(c); + + return MP_OKAY; + +} /* end mp_div_2() */ + +/* }}} */ + +/* {{{ mp_expt_d(a, d, b) */ + +mp_err mp_expt_d(const mp_int *a, mp_digit d, mp_int *c) +{ + mp_int s, x; + mp_err res; + + ARGCHK(a != NULL && c != NULL, MP_BADARG); + + if((res = mp_init(&s, FLAG(a))) != MP_OKAY) + return res; + if((res = mp_init_copy(&x, a)) != MP_OKAY) + goto X; + + DIGIT(&s, 0) = 1; + + while(d != 0) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY) + goto CLEANUP; + } + + d /= 2; + + if((res = s_mp_sqr(&x)) != MP_OKAY) + goto CLEANUP; + } + + s_mp_exch(&s, c); + +CLEANUP: + mp_clear(&x); +X: + mp_clear(&s); + + return res; + +} /* end mp_expt_d() */ + +/* }}} */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ Full arithmetic */ + +/* {{{ mp_abs(a, b) */ + +/* + mp_abs(a, b) + + Compute b = |a|. 'a' and 'b' may be identical. + */ + +mp_err mp_abs(const mp_int *a, mp_int *b) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_copy(a, b)) != MP_OKAY) + return res; + + SIGN(b) = ZPOS; + + return MP_OKAY; + +} /* end mp_abs() */ + +/* }}} */ + +/* {{{ mp_neg(a, b) */ + +/* + mp_neg(a, b) + + Compute b = -a. 'a' and 'b' may be identical. + */ + +mp_err mp_neg(const mp_int *a, mp_int *b) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_copy(a, b)) != MP_OKAY) + return res; + + if(s_mp_cmp_d(b, 0) == MP_EQ) + SIGN(b) = ZPOS; + else + SIGN(b) = (SIGN(b) == NEG) ? ZPOS : NEG; + + return MP_OKAY; + +} /* end mp_neg() */ + +/* }}} */ + +/* {{{ mp_add(a, b, c) */ + +/* + mp_add(a, b, c) + + Compute c = a + b. All parameters may be identical. + */ + +mp_err mp_add(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if(SIGN(a) == SIGN(b)) { /* same sign: add values, keep sign */ + MP_CHECKOK( s_mp_add_3arg(a, b, c) ); + } else if(s_mp_cmp(a, b) >= 0) { /* different sign: |a| >= |b| */ + MP_CHECKOK( s_mp_sub_3arg(a, b, c) ); + } else { /* different sign: |a| < |b| */ + MP_CHECKOK( s_mp_sub_3arg(b, a, c) ); + } + + if (s_mp_cmp_d(c, 0) == MP_EQ) + SIGN(c) = ZPOS; + +CLEANUP: + return res; + +} /* end mp_add() */ + +/* }}} */ + +/* {{{ mp_sub(a, b, c) */ + +/* + mp_sub(a, b, c) + + Compute c = a - b. All parameters may be identical. + */ + +mp_err mp_sub(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_err res; + int magDiff; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if (a == b) { + mp_zero(c); + return MP_OKAY; + } + + if (MP_SIGN(a) != MP_SIGN(b)) { + MP_CHECKOK( s_mp_add_3arg(a, b, c) ); + } else if (!(magDiff = s_mp_cmp(a, b))) { + mp_zero(c); + res = MP_OKAY; + } else if (magDiff > 0) { + MP_CHECKOK( s_mp_sub_3arg(a, b, c) ); + } else { + MP_CHECKOK( s_mp_sub_3arg(b, a, c) ); + MP_SIGN(c) = !MP_SIGN(a); + } + + if (s_mp_cmp_d(c, 0) == MP_EQ) + MP_SIGN(c) = MP_ZPOS; + +CLEANUP: + return res; + +} /* end mp_sub() */ + +/* }}} */ + +/* {{{ mp_mul(a, b, c) */ + +/* + mp_mul(a, b, c) + + Compute c = a * b. All parameters may be identical. + */ +mp_err mp_mul(const mp_int *a, const mp_int *b, mp_int * c) +{ + mp_digit *pb; + mp_int tmp; + mp_err res; + mp_size ib; + mp_size useda, usedb; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if (a == c) { + if ((res = mp_init_copy(&tmp, a)) != MP_OKAY) + return res; + if (a == b) + b = &tmp; + a = &tmp; + } else if (b == c) { + if ((res = mp_init_copy(&tmp, b)) != MP_OKAY) + return res; + b = &tmp; + } else { + MP_DIGITS(&tmp) = 0; + } + + if (MP_USED(a) < MP_USED(b)) { + const mp_int *xch = b; /* switch a and b, to do fewer outer loops */ + b = a; + a = xch; + } + + MP_USED(c) = 1; MP_DIGIT(c, 0) = 0; + if((res = s_mp_pad(c, USED(a) + USED(b))) != MP_OKAY) + goto CLEANUP; + +#ifdef NSS_USE_COMBA + if ((MP_USED(a) == MP_USED(b)) && IS_POWER_OF_2(MP_USED(b))) { + if (MP_USED(a) == 4) { + s_mp_mul_comba_4(a, b, c); + goto CLEANUP; + } + if (MP_USED(a) == 8) { + s_mp_mul_comba_8(a, b, c); + goto CLEANUP; + } + if (MP_USED(a) == 16) { + s_mp_mul_comba_16(a, b, c); + goto CLEANUP; + } + if (MP_USED(a) == 32) { + s_mp_mul_comba_32(a, b, c); + goto CLEANUP; + } + } +#endif + + pb = MP_DIGITS(b); + s_mpv_mul_d(MP_DIGITS(a), MP_USED(a), *pb++, MP_DIGITS(c)); + + /* Outer loop: Digits of b */ + useda = MP_USED(a); + usedb = MP_USED(b); + for (ib = 1; ib < usedb; ib++) { + mp_digit b_i = *pb++; + + /* Inner product: Digits of a */ + if (b_i) + s_mpv_mul_d_add(MP_DIGITS(a), useda, b_i, MP_DIGITS(c) + ib); + else + MP_DIGIT(c, ib + useda) = b_i; + } + + s_mp_clamp(c); + + if(SIGN(a) == SIGN(b) || s_mp_cmp_d(c, 0) == MP_EQ) + SIGN(c) = ZPOS; + else + SIGN(c) = NEG; + +CLEANUP: + mp_clear(&tmp); + return res; +} /* end mp_mul() */ + +/* }}} */ + +/* {{{ mp_sqr(a, sqr) */ + +#if MP_SQUARE +/* + Computes the square of a. This can be done more + efficiently than a general multiplication, because many of the + computation steps are redundant when squaring. The inner product + step is a bit more complicated, but we save a fair number of + iterations of the multiplication loop. + */ + +/* sqr = a^2; Caller provides both a and tmp; */ +mp_err mp_sqr(const mp_int *a, mp_int *sqr) +{ + mp_digit *pa; + mp_digit d; + mp_err res; + mp_size ix; + mp_int tmp; + int count; + + ARGCHK(a != NULL && sqr != NULL, MP_BADARG); + + if (a == sqr) { + if((res = mp_init_copy(&tmp, a)) != MP_OKAY) + return res; + a = &tmp; + } else { + DIGITS(&tmp) = 0; + res = MP_OKAY; + } + + ix = 2 * MP_USED(a); + if (ix > MP_ALLOC(sqr)) { + MP_USED(sqr) = 1; + MP_CHECKOK( s_mp_grow(sqr, ix) ); + } + MP_USED(sqr) = ix; + MP_DIGIT(sqr, 0) = 0; + +#ifdef NSS_USE_COMBA + if (IS_POWER_OF_2(MP_USED(a))) { + if (MP_USED(a) == 4) { + s_mp_sqr_comba_4(a, sqr); + goto CLEANUP; + } + if (MP_USED(a) == 8) { + s_mp_sqr_comba_8(a, sqr); + goto CLEANUP; + } + if (MP_USED(a) == 16) { + s_mp_sqr_comba_16(a, sqr); + goto CLEANUP; + } + if (MP_USED(a) == 32) { + s_mp_sqr_comba_32(a, sqr); + goto CLEANUP; + } + } +#endif + + pa = MP_DIGITS(a); + count = MP_USED(a) - 1; + if (count > 0) { + d = *pa++; + s_mpv_mul_d(pa, count, d, MP_DIGITS(sqr) + 1); + for (ix = 3; --count > 0; ix += 2) { + d = *pa++; + s_mpv_mul_d_add(pa, count, d, MP_DIGITS(sqr) + ix); + } /* for(ix ...) */ + MP_DIGIT(sqr, MP_USED(sqr)-1) = 0; /* above loop stopped short of this. */ + + /* now sqr *= 2 */ + s_mp_mul_2(sqr); + } else { + MP_DIGIT(sqr, 1) = 0; + } + + /* now add the squares of the digits of a to sqr. */ + s_mpv_sqr_add_prop(MP_DIGITS(a), MP_USED(a), MP_DIGITS(sqr)); + + SIGN(sqr) = ZPOS; + s_mp_clamp(sqr); + +CLEANUP: + mp_clear(&tmp); + return res; + +} /* end mp_sqr() */ +#endif + +/* }}} */ + +/* {{{ mp_div(a, b, q, r) */ + +/* + mp_div(a, b, q, r) + + Compute q = a / b and r = a mod b. Input parameters may be re-used + as output parameters. If q or r is NULL, that portion of the + computation will be discarded (although it will still be computed) + */ +mp_err mp_div(const mp_int *a, const mp_int *b, mp_int *q, mp_int *r) +{ + mp_err res; + mp_int *pQ, *pR; + mp_int qtmp, rtmp, btmp; + int cmp; + mp_sign signA; + mp_sign signB; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + signA = MP_SIGN(a); + signB = MP_SIGN(b); + + if(mp_cmp_z(b) == MP_EQ) + return MP_RANGE; + + DIGITS(&qtmp) = 0; + DIGITS(&rtmp) = 0; + DIGITS(&btmp) = 0; + + /* Set up some temporaries... */ + if (!r || r == a || r == b) { + MP_CHECKOK( mp_init_copy(&rtmp, a) ); + pR = &rtmp; + } else { + MP_CHECKOK( mp_copy(a, r) ); + pR = r; + } + + if (!q || q == a || q == b) { + MP_CHECKOK( mp_init_size(&qtmp, MP_USED(a), FLAG(a)) ); + pQ = &qtmp; + } else { + MP_CHECKOK( s_mp_pad(q, MP_USED(a)) ); + pQ = q; + mp_zero(pQ); + } + + /* + If |a| <= |b|, we can compute the solution without division; + otherwise, we actually do the work required. + */ + if ((cmp = s_mp_cmp(a, b)) <= 0) { + if (cmp) { + /* r was set to a above. */ + mp_zero(pQ); + } else { + mp_set(pQ, 1); + mp_zero(pR); + } + } else { + MP_CHECKOK( mp_init_copy(&btmp, b) ); + MP_CHECKOK( s_mp_div(pR, &btmp, pQ) ); + } + + /* Compute the signs for the output */ + MP_SIGN(pR) = signA; /* Sr = Sa */ + /* Sq = ZPOS if Sa == Sb */ /* Sq = NEG if Sa != Sb */ + MP_SIGN(pQ) = (signA == signB) ? ZPOS : NEG; + + if(s_mp_cmp_d(pQ, 0) == MP_EQ) + SIGN(pQ) = ZPOS; + if(s_mp_cmp_d(pR, 0) == MP_EQ) + SIGN(pR) = ZPOS; + + /* Copy output, if it is needed */ + if(q && q != pQ) + s_mp_exch(pQ, q); + + if(r && r != pR) + s_mp_exch(pR, r); + +CLEANUP: + mp_clear(&btmp); + mp_clear(&rtmp); + mp_clear(&qtmp); + + return res; + +} /* end mp_div() */ + +/* }}} */ + +/* {{{ mp_div_2d(a, d, q, r) */ + +mp_err mp_div_2d(const mp_int *a, mp_digit d, mp_int *q, mp_int *r) +{ + mp_err res; + + ARGCHK(a != NULL, MP_BADARG); + + if(q) { + if((res = mp_copy(a, q)) != MP_OKAY) + return res; + } + if(r) { + if((res = mp_copy(a, r)) != MP_OKAY) + return res; + } + if(q) { + s_mp_div_2d(q, d); + } + if(r) { + s_mp_mod_2d(r, d); + } + + return MP_OKAY; + +} /* end mp_div_2d() */ + +/* }}} */ + +/* {{{ mp_expt(a, b, c) */ + +/* + mp_expt(a, b, c) + + Compute c = a ** b, that is, raise a to the b power. Uses a + standard iterative square-and-multiply technique. + */ + +mp_err mp_expt(mp_int *a, mp_int *b, mp_int *c) +{ + mp_int s, x; + mp_err res; + mp_digit d; + int dig, bit; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if(mp_cmp_z(b) < 0) + return MP_RANGE; + + if((res = mp_init(&s, FLAG(a))) != MP_OKAY) + return res; + + mp_set(&s, 1); + + if((res = mp_init_copy(&x, a)) != MP_OKAY) + goto X; + + /* Loop over low-order digits in ascending order */ + for(dig = 0; dig < (USED(b) - 1); dig++) { + d = DIGIT(b, dig); + + /* Loop over bits of each non-maximal digit */ + for(bit = 0; bit < DIGIT_BIT; bit++) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY) + goto CLEANUP; + } + + d >>= 1; + + if((res = s_mp_sqr(&x)) != MP_OKAY) + goto CLEANUP; + } + } + + /* Consider now the last digit... */ + d = DIGIT(b, dig); + + while(d) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY) + goto CLEANUP; + } + + d >>= 1; + + if((res = s_mp_sqr(&x)) != MP_OKAY) + goto CLEANUP; + } + + if(mp_iseven(b)) + SIGN(&s) = SIGN(a); + + res = mp_copy(&s, c); + +CLEANUP: + mp_clear(&x); +X: + mp_clear(&s); + + return res; + +} /* end mp_expt() */ + +/* }}} */ + +/* {{{ mp_2expt(a, k) */ + +/* Compute a = 2^k */ + +mp_err mp_2expt(mp_int *a, mp_digit k) +{ + ARGCHK(a != NULL, MP_BADARG); + + return s_mp_2expt(a, k); + +} /* end mp_2expt() */ + +/* }}} */ + +/* {{{ mp_mod(a, m, c) */ + +/* + mp_mod(a, m, c) + + Compute c = a (mod m). Result will always be 0 <= c < m. + */ + +mp_err mp_mod(const mp_int *a, const mp_int *m, mp_int *c) +{ + mp_err res; + int mag; + + ARGCHK(a != NULL && m != NULL && c != NULL, MP_BADARG); + + if(SIGN(m) == NEG) + return MP_RANGE; + + /* + If |a| > m, we need to divide to get the remainder and take the + absolute value. + + If |a| < m, we don't need to do any division, just copy and adjust + the sign (if a is negative). + + If |a| == m, we can simply set the result to zero. + + This order is intended to minimize the average path length of the + comparison chain on common workloads -- the most frequent cases are + that |a| != m, so we do those first. + */ + if((mag = s_mp_cmp(a, m)) > 0) { + if((res = mp_div(a, m, NULL, c)) != MP_OKAY) + return res; + + if(SIGN(c) == NEG) { + if((res = mp_add(c, m, c)) != MP_OKAY) + return res; + } + + } else if(mag < 0) { + if((res = mp_copy(a, c)) != MP_OKAY) + return res; + + if(mp_cmp_z(a) < 0) { + if((res = mp_add(c, m, c)) != MP_OKAY) + return res; + + } + + } else { + mp_zero(c); + + } + + return MP_OKAY; + +} /* end mp_mod() */ + +/* }}} */ + +/* {{{ mp_mod_d(a, d, c) */ + +/* + mp_mod_d(a, d, c) + + Compute c = a (mod d). Result will always be 0 <= c < d + */ +mp_err mp_mod_d(const mp_int *a, mp_digit d, mp_digit *c) +{ + mp_err res; + mp_digit rem; + + ARGCHK(a != NULL && c != NULL, MP_BADARG); + + if(s_mp_cmp_d(a, d) > 0) { + if((res = mp_div_d(a, d, NULL, &rem)) != MP_OKAY) + return res; + + } else { + if(SIGN(a) == NEG) + rem = d - DIGIT(a, 0); + else + rem = DIGIT(a, 0); + } + + if(c) + *c = rem; + + return MP_OKAY; + +} /* end mp_mod_d() */ + +/* }}} */ + +/* {{{ mp_sqrt(a, b) */ + +/* + mp_sqrt(a, b) + + Compute the integer square root of a, and store the result in b. + Uses an integer-arithmetic version of Newton's iterative linear + approximation technique to determine this value; the result has the + following two properties: + + b^2 <= a + (b+1)^2 >= a + + It is a range error to pass a negative value. + */ +mp_err mp_sqrt(const mp_int *a, mp_int *b) +{ + mp_int x, t; + mp_err res; + mp_size used; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + /* Cannot take square root of a negative value */ + if(SIGN(a) == NEG) + return MP_RANGE; + + /* Special cases for zero and one, trivial */ + if(mp_cmp_d(a, 1) <= 0) + return mp_copy(a, b); + + /* Initialize the temporaries we'll use below */ + if((res = mp_init_size(&t, USED(a), FLAG(a))) != MP_OKAY) + return res; + + /* Compute an initial guess for the iteration as a itself */ + if((res = mp_init_copy(&x, a)) != MP_OKAY) + goto X; + + used = MP_USED(&x); + if (used > 1) { + s_mp_rshd(&x, used / 2); + } + + for(;;) { + /* t = (x * x) - a */ + mp_copy(&x, &t); /* can't fail, t is big enough for original x */ + if((res = mp_sqr(&t, &t)) != MP_OKAY || + (res = mp_sub(&t, a, &t)) != MP_OKAY) + goto CLEANUP; + + /* t = t / 2x */ + s_mp_mul_2(&x); + if((res = mp_div(&t, &x, &t, NULL)) != MP_OKAY) + goto CLEANUP; + s_mp_div_2(&x); + + /* Terminate the loop, if the quotient is zero */ + if(mp_cmp_z(&t) == MP_EQ) + break; + + /* x = x - t */ + if((res = mp_sub(&x, &t, &x)) != MP_OKAY) + goto CLEANUP; + + } + + /* Copy result to output parameter */ + mp_sub_d(&x, 1, &x); + s_mp_exch(&x, b); + + CLEANUP: + mp_clear(&x); + X: + mp_clear(&t); + + return res; + +} /* end mp_sqrt() */ + +/* }}} */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ Modular arithmetic */ + +#if MP_MODARITH +/* {{{ mp_addmod(a, b, m, c) */ + +/* + mp_addmod(a, b, m, c) + + Compute c = (a + b) mod m + */ + +mp_err mp_addmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL && m != NULL && c != NULL, MP_BADARG); + + if((res = mp_add(a, b, c)) != MP_OKAY) + return res; + if((res = mp_mod(c, m, c)) != MP_OKAY) + return res; + + return MP_OKAY; + +} + +/* }}} */ + +/* {{{ mp_submod(a, b, m, c) */ + +/* + mp_submod(a, b, m, c) + + Compute c = (a - b) mod m + */ + +mp_err mp_submod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL && m != NULL && c != NULL, MP_BADARG); + + if((res = mp_sub(a, b, c)) != MP_OKAY) + return res; + if((res = mp_mod(c, m, c)) != MP_OKAY) + return res; + + return MP_OKAY; + +} + +/* }}} */ + +/* {{{ mp_mulmod(a, b, m, c) */ + +/* + mp_mulmod(a, b, m, c) + + Compute c = (a * b) mod m + */ + +mp_err mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL && m != NULL && c != NULL, MP_BADARG); + + if((res = mp_mul(a, b, c)) != MP_OKAY) + return res; + if((res = mp_mod(c, m, c)) != MP_OKAY) + return res; + + return MP_OKAY; + +} + +/* }}} */ + +/* {{{ mp_sqrmod(a, m, c) */ + +#if MP_SQUARE +mp_err mp_sqrmod(const mp_int *a, const mp_int *m, mp_int *c) +{ + mp_err res; + + ARGCHK(a != NULL && m != NULL && c != NULL, MP_BADARG); + + if((res = mp_sqr(a, c)) != MP_OKAY) + return res; + if((res = mp_mod(c, m, c)) != MP_OKAY) + return res; + + return MP_OKAY; + +} /* end mp_sqrmod() */ +#endif + +/* }}} */ + +/* {{{ s_mp_exptmod(a, b, m, c) */ + +/* + s_mp_exptmod(a, b, m, c) + + Compute c = (a ** b) mod m. Uses a standard square-and-multiply + method with modular reductions at each step. (This is basically the + same code as mp_expt(), except for the addition of the reductions) + + The modular reductions are done using Barrett's algorithm (see + s_mp_reduce() below for details) + */ + +mp_err s_mp_exptmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c) +{ + mp_int s, x, mu; + mp_err res; + mp_digit d; + int dig, bit; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if(mp_cmp_z(b) < 0 || mp_cmp_z(m) <= 0) + return MP_RANGE; + + if((res = mp_init(&s, FLAG(a))) != MP_OKAY) + return res; + if((res = mp_init_copy(&x, a)) != MP_OKAY || + (res = mp_mod(&x, m, &x)) != MP_OKAY) + goto X; + if((res = mp_init(&mu, FLAG(a))) != MP_OKAY) + goto MU; + + mp_set(&s, 1); + + /* mu = b^2k / m */ + s_mp_add_d(&mu, 1); + s_mp_lshd(&mu, 2 * USED(m)); + if((res = mp_div(&mu, m, &mu, NULL)) != MP_OKAY) + goto CLEANUP; + + /* Loop over digits of b in ascending order, except highest order */ + for(dig = 0; dig < (USED(b) - 1); dig++) { + d = DIGIT(b, dig); + + /* Loop over the bits of the lower-order digits */ + for(bit = 0; bit < DIGIT_BIT; bit++) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY) + goto CLEANUP; + if((res = s_mp_reduce(&s, m, &mu)) != MP_OKAY) + goto CLEANUP; + } + + d >>= 1; + + if((res = s_mp_sqr(&x)) != MP_OKAY) + goto CLEANUP; + if((res = s_mp_reduce(&x, m, &mu)) != MP_OKAY) + goto CLEANUP; + } + } + + /* Now do the last digit... */ + d = DIGIT(b, dig); + + while(d) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY) + goto CLEANUP; + if((res = s_mp_reduce(&s, m, &mu)) != MP_OKAY) + goto CLEANUP; + } + + d >>= 1; + + if((res = s_mp_sqr(&x)) != MP_OKAY) + goto CLEANUP; + if((res = s_mp_reduce(&x, m, &mu)) != MP_OKAY) + goto CLEANUP; + } + + s_mp_exch(&s, c); + + CLEANUP: + mp_clear(&mu); + MU: + mp_clear(&x); + X: + mp_clear(&s); + + return res; + +} /* end s_mp_exptmod() */ + +/* }}} */ + +/* {{{ mp_exptmod_d(a, d, m, c) */ + +mp_err mp_exptmod_d(const mp_int *a, mp_digit d, const mp_int *m, mp_int *c) +{ + mp_int s, x; + mp_err res; + + ARGCHK(a != NULL && c != NULL, MP_BADARG); + + if((res = mp_init(&s, FLAG(a))) != MP_OKAY) + return res; + if((res = mp_init_copy(&x, a)) != MP_OKAY) + goto X; + + mp_set(&s, 1); + + while(d != 0) { + if(d & 1) { + if((res = s_mp_mul(&s, &x)) != MP_OKAY || + (res = mp_mod(&s, m, &s)) != MP_OKAY) + goto CLEANUP; + } + + d /= 2; + + if((res = s_mp_sqr(&x)) != MP_OKAY || + (res = mp_mod(&x, m, &x)) != MP_OKAY) + goto CLEANUP; + } + + s_mp_exch(&s, c); + +CLEANUP: + mp_clear(&x); +X: + mp_clear(&s); + + return res; + +} /* end mp_exptmod_d() */ + +/* }}} */ +#endif /* if MP_MODARITH */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ Comparison functions */ + +/* {{{ mp_cmp_z(a) */ + +/* + mp_cmp_z(a) + + Compare a <=> 0. Returns <0 if a<0, 0 if a=0, >0 if a>0. + */ + +int mp_cmp_z(const mp_int *a) +{ + if(SIGN(a) == NEG) + return MP_LT; + else if(USED(a) == 1 && DIGIT(a, 0) == 0) + return MP_EQ; + else + return MP_GT; + +} /* end mp_cmp_z() */ + +/* }}} */ + +/* {{{ mp_cmp_d(a, d) */ + +/* + mp_cmp_d(a, d) + + Compare a <=> d. Returns <0 if a0 if a>d + */ + +int mp_cmp_d(const mp_int *a, mp_digit d) +{ + ARGCHK(a != NULL, MP_EQ); + + if(SIGN(a) == NEG) + return MP_LT; + + return s_mp_cmp_d(a, d); + +} /* end mp_cmp_d() */ + +/* }}} */ + +/* {{{ mp_cmp(a, b) */ + +int mp_cmp(const mp_int *a, const mp_int *b) +{ + ARGCHK(a != NULL && b != NULL, MP_EQ); + + if(SIGN(a) == SIGN(b)) { + int mag; + + if((mag = s_mp_cmp(a, b)) == MP_EQ) + return MP_EQ; + + if(SIGN(a) == ZPOS) + return mag; + else + return -mag; + + } else if(SIGN(a) == ZPOS) { + return MP_GT; + } else { + return MP_LT; + } + +} /* end mp_cmp() */ + +/* }}} */ + +/* {{{ mp_cmp_mag(a, b) */ + +/* + mp_cmp_mag(a, b) + + Compares |a| <=> |b|, and returns an appropriate comparison result + */ + +int mp_cmp_mag(mp_int *a, mp_int *b) +{ + ARGCHK(a != NULL && b != NULL, MP_EQ); + + return s_mp_cmp(a, b); + +} /* end mp_cmp_mag() */ + +/* }}} */ + +/* {{{ mp_cmp_int(a, z, kmflag) */ + +/* + This just converts z to an mp_int, and uses the existing comparison + routines. This is sort of inefficient, but it's not clear to me how + frequently this wil get used anyway. For small positive constants, + you can always use mp_cmp_d(), and for zero, there is mp_cmp_z(). + */ +int mp_cmp_int(const mp_int *a, long z, int kmflag) +{ + mp_int tmp; + int out; + + ARGCHK(a != NULL, MP_EQ); + + mp_init(&tmp, kmflag); mp_set_int(&tmp, z); + out = mp_cmp(a, &tmp); + mp_clear(&tmp); + + return out; + +} /* end mp_cmp_int() */ + +/* }}} */ + +/* {{{ mp_isodd(a) */ + +/* + mp_isodd(a) + + Returns a true (non-zero) value if a is odd, false (zero) otherwise. + */ +int mp_isodd(const mp_int *a) +{ + ARGCHK(a != NULL, 0); + + return (int)(DIGIT(a, 0) & 1); + +} /* end mp_isodd() */ + +/* }}} */ + +/* {{{ mp_iseven(a) */ + +int mp_iseven(const mp_int *a) +{ + return !mp_isodd(a); + +} /* end mp_iseven() */ + +/* }}} */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ Number theoretic functions */ + +#if MP_NUMTH +/* {{{ mp_gcd(a, b, c) */ + +/* + Like the old mp_gcd() function, except computes the GCD using the + binary algorithm due to Josef Stein in 1961 (via Knuth). + */ +mp_err mp_gcd(mp_int *a, mp_int *b, mp_int *c) +{ + mp_err res; + mp_int u, v, t; + mp_size k = 0; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if(mp_cmp_z(a) == MP_EQ && mp_cmp_z(b) == MP_EQ) + return MP_RANGE; + if(mp_cmp_z(a) == MP_EQ) { + return mp_copy(b, c); + } else if(mp_cmp_z(b) == MP_EQ) { + return mp_copy(a, c); + } + + if((res = mp_init(&t, FLAG(a))) != MP_OKAY) + return res; + if((res = mp_init_copy(&u, a)) != MP_OKAY) + goto U; + if((res = mp_init_copy(&v, b)) != MP_OKAY) + goto V; + + SIGN(&u) = ZPOS; + SIGN(&v) = ZPOS; + + /* Divide out common factors of 2 until at least 1 of a, b is even */ + while(mp_iseven(&u) && mp_iseven(&v)) { + s_mp_div_2(&u); + s_mp_div_2(&v); + ++k; + } + + /* Initialize t */ + if(mp_isodd(&u)) { + if((res = mp_copy(&v, &t)) != MP_OKAY) + goto CLEANUP; + + /* t = -v */ + if(SIGN(&v) == ZPOS) + SIGN(&t) = NEG; + else + SIGN(&t) = ZPOS; + + } else { + if((res = mp_copy(&u, &t)) != MP_OKAY) + goto CLEANUP; + + } + + for(;;) { + while(mp_iseven(&t)) { + s_mp_div_2(&t); + } + + if(mp_cmp_z(&t) == MP_GT) { + if((res = mp_copy(&t, &u)) != MP_OKAY) + goto CLEANUP; + + } else { + if((res = mp_copy(&t, &v)) != MP_OKAY) + goto CLEANUP; + + /* v = -t */ + if(SIGN(&t) == ZPOS) + SIGN(&v) = NEG; + else + SIGN(&v) = ZPOS; + } + + if((res = mp_sub(&u, &v, &t)) != MP_OKAY) + goto CLEANUP; + + if(s_mp_cmp_d(&t, 0) == MP_EQ) + break; + } + + s_mp_2expt(&v, k); /* v = 2^k */ + res = mp_mul(&u, &v, c); /* c = u * v */ + + CLEANUP: + mp_clear(&v); + V: + mp_clear(&u); + U: + mp_clear(&t); + + return res; + +} /* end mp_gcd() */ + +/* }}} */ + +/* {{{ mp_lcm(a, b, c) */ + +/* We compute the least common multiple using the rule: + + ab = [a, b](a, b) + + ... by computing the product, and dividing out the gcd. + */ + +mp_err mp_lcm(mp_int *a, mp_int *b, mp_int *c) +{ + mp_int gcd, prod; + mp_err res; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + /* Set up temporaries */ + if((res = mp_init(&gcd, FLAG(a))) != MP_OKAY) + return res; + if((res = mp_init(&prod, FLAG(a))) != MP_OKAY) + goto GCD; + + if((res = mp_mul(a, b, &prod)) != MP_OKAY) + goto CLEANUP; + if((res = mp_gcd(a, b, &gcd)) != MP_OKAY) + goto CLEANUP; + + res = mp_div(&prod, &gcd, c, NULL); + + CLEANUP: + mp_clear(&prod); + GCD: + mp_clear(&gcd); + + return res; + +} /* end mp_lcm() */ + +/* }}} */ + +/* {{{ mp_xgcd(a, b, g, x, y) */ + +/* + mp_xgcd(a, b, g, x, y) + + Compute g = (a, b) and values x and y satisfying Bezout's identity + (that is, ax + by = g). This uses the binary extended GCD algorithm + based on the Stein algorithm used for mp_gcd() + See algorithm 14.61 in Handbook of Applied Cryptogrpahy. + */ + +mp_err mp_xgcd(const mp_int *a, const mp_int *b, mp_int *g, mp_int *x, mp_int *y) +{ + mp_int gx, xc, yc, u, v, A, B, C, D; + mp_int *clean[9]; + mp_err res; + int last = -1; + + if(mp_cmp_z(b) == 0) + return MP_RANGE; + + /* Initialize all these variables we need */ + MP_CHECKOK( mp_init(&u, FLAG(a)) ); + clean[++last] = &u; + MP_CHECKOK( mp_init(&v, FLAG(a)) ); + clean[++last] = &v; + MP_CHECKOK( mp_init(&gx, FLAG(a)) ); + clean[++last] = &gx; + MP_CHECKOK( mp_init(&A, FLAG(a)) ); + clean[++last] = &A; + MP_CHECKOK( mp_init(&B, FLAG(a)) ); + clean[++last] = &B; + MP_CHECKOK( mp_init(&C, FLAG(a)) ); + clean[++last] = &C; + MP_CHECKOK( mp_init(&D, FLAG(a)) ); + clean[++last] = &D; + MP_CHECKOK( mp_init_copy(&xc, a) ); + clean[++last] = &xc; + mp_abs(&xc, &xc); + MP_CHECKOK( mp_init_copy(&yc, b) ); + clean[++last] = &yc; + mp_abs(&yc, &yc); + + mp_set(&gx, 1); + + /* Divide by two until at least one of them is odd */ + while(mp_iseven(&xc) && mp_iseven(&yc)) { + mp_size nx = mp_trailing_zeros(&xc); + mp_size ny = mp_trailing_zeros(&yc); + mp_size n = MP_MIN(nx, ny); + s_mp_div_2d(&xc,n); + s_mp_div_2d(&yc,n); + MP_CHECKOK( s_mp_mul_2d(&gx,n) ); + } + + mp_copy(&xc, &u); + mp_copy(&yc, &v); + mp_set(&A, 1); mp_set(&D, 1); + + /* Loop through binary GCD algorithm */ + do { + while(mp_iseven(&u)) { + s_mp_div_2(&u); + + if(mp_iseven(&A) && mp_iseven(&B)) { + s_mp_div_2(&A); s_mp_div_2(&B); + } else { + MP_CHECKOK( mp_add(&A, &yc, &A) ); + s_mp_div_2(&A); + MP_CHECKOK( mp_sub(&B, &xc, &B) ); + s_mp_div_2(&B); + } + } + + while(mp_iseven(&v)) { + s_mp_div_2(&v); + + if(mp_iseven(&C) && mp_iseven(&D)) { + s_mp_div_2(&C); s_mp_div_2(&D); + } else { + MP_CHECKOK( mp_add(&C, &yc, &C) ); + s_mp_div_2(&C); + MP_CHECKOK( mp_sub(&D, &xc, &D) ); + s_mp_div_2(&D); + } + } + + if(mp_cmp(&u, &v) >= 0) { + MP_CHECKOK( mp_sub(&u, &v, &u) ); + MP_CHECKOK( mp_sub(&A, &C, &A) ); + MP_CHECKOK( mp_sub(&B, &D, &B) ); + } else { + MP_CHECKOK( mp_sub(&v, &u, &v) ); + MP_CHECKOK( mp_sub(&C, &A, &C) ); + MP_CHECKOK( mp_sub(&D, &B, &D) ); + } + } while (mp_cmp_z(&u) != 0); + + /* copy results to output */ + if(x) + MP_CHECKOK( mp_copy(&C, x) ); + + if(y) + MP_CHECKOK( mp_copy(&D, y) ); + + if(g) + MP_CHECKOK( mp_mul(&gx, &v, g) ); + + CLEANUP: + while(last >= 0) + mp_clear(clean[last--]); + + return res; + +} /* end mp_xgcd() */ + +/* }}} */ + +mp_size mp_trailing_zeros(const mp_int *mp) +{ + mp_digit d; + mp_size n = 0; + int ix; + + if (!mp || !MP_DIGITS(mp) || !mp_cmp_z(mp)) + return n; + + for (ix = 0; !(d = MP_DIGIT(mp,ix)) && (ix < MP_USED(mp)); ++ix) + n += MP_DIGIT_BIT; + if (!d) + return 0; /* shouldn't happen, but ... */ +#if !defined(MP_USE_UINT_DIGIT) + if (!(d & 0xffffffffU)) { + d >>= 32; + n += 32; + } +#endif + if (!(d & 0xffffU)) { + d >>= 16; + n += 16; + } + if (!(d & 0xffU)) { + d >>= 8; + n += 8; + } + if (!(d & 0xfU)) { + d >>= 4; + n += 4; + } + if (!(d & 0x3U)) { + d >>= 2; + n += 2; + } + if (!(d & 0x1U)) { + d >>= 1; + n += 1; + } +#if MP_ARGCHK == 2 + assert(0 != (d & 1)); +#endif + return n; +} + +/* Given a and prime p, computes c and k such that a*c == 2**k (mod p). +** Returns k (positive) or error (negative). +** This technique from the paper "Fast Modular Reciprocals" (unpublished) +** by Richard Schroeppel (a.k.a. Captain Nemo). +*/ +mp_err s_mp_almost_inverse(const mp_int *a, const mp_int *p, mp_int *c) +{ + mp_err res; + mp_err k = 0; + mp_int d, f, g; + + ARGCHK(a && p && c, MP_BADARG); + + MP_DIGITS(&d) = 0; + MP_DIGITS(&f) = 0; + MP_DIGITS(&g) = 0; + MP_CHECKOK( mp_init(&d, FLAG(a)) ); + MP_CHECKOK( mp_init_copy(&f, a) ); /* f = a */ + MP_CHECKOK( mp_init_copy(&g, p) ); /* g = p */ + + mp_set(c, 1); + mp_zero(&d); + + if (mp_cmp_z(&f) == 0) { + res = MP_UNDEF; + } else + for (;;) { + int diff_sign; + while (mp_iseven(&f)) { + mp_size n = mp_trailing_zeros(&f); + if (!n) { + res = MP_UNDEF; + goto CLEANUP; + } + s_mp_div_2d(&f, n); + MP_CHECKOK( s_mp_mul_2d(&d, n) ); + k += n; + } + if (mp_cmp_d(&f, 1) == MP_EQ) { /* f == 1 */ + res = k; + break; + } + diff_sign = mp_cmp(&f, &g); + if (diff_sign < 0) { /* f < g */ + s_mp_exch(&f, &g); + s_mp_exch(c, &d); + } else if (diff_sign == 0) { /* f == g */ + res = MP_UNDEF; /* a and p are not relatively prime */ + break; + } + if ((MP_DIGIT(&f,0) % 4) == (MP_DIGIT(&g,0) % 4)) { + MP_CHECKOK( mp_sub(&f, &g, &f) ); /* f = f - g */ + MP_CHECKOK( mp_sub(c, &d, c) ); /* c = c - d */ + } else { + MP_CHECKOK( mp_add(&f, &g, &f) ); /* f = f + g */ + MP_CHECKOK( mp_add(c, &d, c) ); /* c = c + d */ + } + } + if (res >= 0) { + while (MP_SIGN(c) != MP_ZPOS) { + MP_CHECKOK( mp_add(c, p, c) ); + } + res = k; + } + +CLEANUP: + mp_clear(&d); + mp_clear(&f); + mp_clear(&g); + return res; +} + +/* Compute T = (P ** -1) mod MP_RADIX. Also works for 16-bit mp_digits. +** This technique from the paper "Fast Modular Reciprocals" (unpublished) +** by Richard Schroeppel (a.k.a. Captain Nemo). +*/ +mp_digit s_mp_invmod_radix(mp_digit P) +{ + mp_digit T = P; + T *= 2 - (P * T); + T *= 2 - (P * T); + T *= 2 - (P * T); + T *= 2 - (P * T); +#if !defined(MP_USE_UINT_DIGIT) + T *= 2 - (P * T); + T *= 2 - (P * T); +#endif + return T; +} + +/* Given c, k, and prime p, where a*c == 2**k (mod p), +** Compute x = (a ** -1) mod p. This is similar to Montgomery reduction. +** This technique from the paper "Fast Modular Reciprocals" (unpublished) +** by Richard Schroeppel (a.k.a. Captain Nemo). +*/ +mp_err s_mp_fixup_reciprocal(const mp_int *c, const mp_int *p, int k, mp_int *x) +{ + int k_orig = k; + mp_digit r; + mp_size ix; + mp_err res; + + if (mp_cmp_z(c) < 0) { /* c < 0 */ + MP_CHECKOK( mp_add(c, p, x) ); /* x = c + p */ + } else { + MP_CHECKOK( mp_copy(c, x) ); /* x = c */ + } + + /* make sure x is large enough */ + ix = MP_HOWMANY(k, MP_DIGIT_BIT) + MP_USED(p) + 1; + ix = MP_MAX(ix, MP_USED(x)); + MP_CHECKOK( s_mp_pad(x, ix) ); + + r = 0 - s_mp_invmod_radix(MP_DIGIT(p,0)); + + for (ix = 0; k > 0; ix++) { + int j = MP_MIN(k, MP_DIGIT_BIT); + mp_digit v = r * MP_DIGIT(x, ix); + if (j < MP_DIGIT_BIT) { + v &= ((mp_digit)1 << j) - 1; /* v = v mod (2 ** j) */ + } + s_mp_mul_d_add_offset(p, v, x, ix); /* x += p * v * (RADIX ** ix) */ + k -= j; + } + s_mp_clamp(x); + s_mp_div_2d(x, k_orig); + res = MP_OKAY; + +CLEANUP: + return res; +} + +/* compute mod inverse using Schroeppel's method, only if m is odd */ +mp_err s_mp_invmod_odd_m(const mp_int *a, const mp_int *m, mp_int *c) +{ + int k; + mp_err res; + mp_int x; + + ARGCHK(a && m && c, MP_BADARG); + + if(mp_cmp_z(a) == 0 || mp_cmp_z(m) == 0) + return MP_RANGE; + if (mp_iseven(m)) + return MP_UNDEF; + + MP_DIGITS(&x) = 0; + + if (a == c) { + if ((res = mp_init_copy(&x, a)) != MP_OKAY) + return res; + if (a == m) + m = &x; + a = &x; + } else if (m == c) { + if ((res = mp_init_copy(&x, m)) != MP_OKAY) + return res; + m = &x; + } else { + MP_DIGITS(&x) = 0; + } + + MP_CHECKOK( s_mp_almost_inverse(a, m, c) ); + k = res; + MP_CHECKOK( s_mp_fixup_reciprocal(c, m, k, c) ); +CLEANUP: + mp_clear(&x); + return res; +} + +/* Known good algorithm for computing modular inverse. But slow. */ +mp_err mp_invmod_xgcd(const mp_int *a, const mp_int *m, mp_int *c) +{ + mp_int g, x; + mp_err res; + + ARGCHK(a && m && c, MP_BADARG); + + if(mp_cmp_z(a) == 0 || mp_cmp_z(m) == 0) + return MP_RANGE; + + MP_DIGITS(&g) = 0; + MP_DIGITS(&x) = 0; + MP_CHECKOK( mp_init(&x, FLAG(a)) ); + MP_CHECKOK( mp_init(&g, FLAG(a)) ); + + MP_CHECKOK( mp_xgcd(a, m, &g, &x, NULL) ); + + if (mp_cmp_d(&g, 1) != MP_EQ) { + res = MP_UNDEF; + goto CLEANUP; + } + + res = mp_mod(&x, m, c); + SIGN(c) = SIGN(a); + +CLEANUP: + mp_clear(&x); + mp_clear(&g); + + return res; +} + +/* modular inverse where modulus is 2**k. */ +/* c = a**-1 mod 2**k */ +mp_err s_mp_invmod_2d(const mp_int *a, mp_size k, mp_int *c) +{ + mp_err res; + mp_size ix = k + 4; + mp_int t0, t1, val, tmp, two2k; + + static const mp_digit d2 = 2; + static const mp_int two = { 0, MP_ZPOS, 1, 1, (mp_digit *)&d2 }; + + if (mp_iseven(a)) + return MP_UNDEF; + if (k <= MP_DIGIT_BIT) { + mp_digit i = s_mp_invmod_radix(MP_DIGIT(a,0)); + if (k < MP_DIGIT_BIT) + i &= ((mp_digit)1 << k) - (mp_digit)1; + mp_set(c, i); + return MP_OKAY; + } + MP_DIGITS(&t0) = 0; + MP_DIGITS(&t1) = 0; + MP_DIGITS(&val) = 0; + MP_DIGITS(&tmp) = 0; + MP_DIGITS(&two2k) = 0; + MP_CHECKOK( mp_init_copy(&val, a) ); + s_mp_mod_2d(&val, k); + MP_CHECKOK( mp_init_copy(&t0, &val) ); + MP_CHECKOK( mp_init_copy(&t1, &t0) ); + MP_CHECKOK( mp_init(&tmp, FLAG(a)) ); + MP_CHECKOK( mp_init(&two2k, FLAG(a)) ); + MP_CHECKOK( s_mp_2expt(&two2k, k) ); + do { + MP_CHECKOK( mp_mul(&val, &t1, &tmp) ); + MP_CHECKOK( mp_sub(&two, &tmp, &tmp) ); + MP_CHECKOK( mp_mul(&t1, &tmp, &t1) ); + s_mp_mod_2d(&t1, k); + while (MP_SIGN(&t1) != MP_ZPOS) { + MP_CHECKOK( mp_add(&t1, &two2k, &t1) ); + } + if (mp_cmp(&t1, &t0) == MP_EQ) + break; + MP_CHECKOK( mp_copy(&t1, &t0) ); + } while (--ix > 0); + if (!ix) { + res = MP_UNDEF; + } else { + mp_exch(c, &t1); + } + +CLEANUP: + mp_clear(&t0); + mp_clear(&t1); + mp_clear(&val); + mp_clear(&tmp); + mp_clear(&two2k); + return res; +} + +mp_err s_mp_invmod_even_m(const mp_int *a, const mp_int *m, mp_int *c) +{ + mp_err res; + mp_size k; + mp_int oddFactor, evenFactor; /* factors of the modulus */ + mp_int oddPart, evenPart; /* parts to combine via CRT. */ + mp_int C2, tmp1, tmp2; + + /*static const mp_digit d1 = 1; */ + /*static const mp_int one = { MP_ZPOS, 1, 1, (mp_digit *)&d1 }; */ + + if ((res = s_mp_ispow2(m)) >= 0) { + k = res; + return s_mp_invmod_2d(a, k, c); + } + MP_DIGITS(&oddFactor) = 0; + MP_DIGITS(&evenFactor) = 0; + MP_DIGITS(&oddPart) = 0; + MP_DIGITS(&evenPart) = 0; + MP_DIGITS(&C2) = 0; + MP_DIGITS(&tmp1) = 0; + MP_DIGITS(&tmp2) = 0; + + MP_CHECKOK( mp_init_copy(&oddFactor, m) ); /* oddFactor = m */ + MP_CHECKOK( mp_init(&evenFactor, FLAG(m)) ); + MP_CHECKOK( mp_init(&oddPart, FLAG(m)) ); + MP_CHECKOK( mp_init(&evenPart, FLAG(m)) ); + MP_CHECKOK( mp_init(&C2, FLAG(m)) ); + MP_CHECKOK( mp_init(&tmp1, FLAG(m)) ); + MP_CHECKOK( mp_init(&tmp2, FLAG(m)) ); + + k = mp_trailing_zeros(m); + s_mp_div_2d(&oddFactor, k); + MP_CHECKOK( s_mp_2expt(&evenFactor, k) ); + + /* compute a**-1 mod oddFactor. */ + MP_CHECKOK( s_mp_invmod_odd_m(a, &oddFactor, &oddPart) ); + /* compute a**-1 mod evenFactor, where evenFactor == 2**k. */ + MP_CHECKOK( s_mp_invmod_2d( a, k, &evenPart) ); + + /* Use Chinese Remainer theorem to compute a**-1 mod m. */ + /* let m1 = oddFactor, v1 = oddPart, + * let m2 = evenFactor, v2 = evenPart. + */ + + /* Compute C2 = m1**-1 mod m2. */ + MP_CHECKOK( s_mp_invmod_2d(&oddFactor, k, &C2) ); + + /* compute u = (v2 - v1)*C2 mod m2 */ + MP_CHECKOK( mp_sub(&evenPart, &oddPart, &tmp1) ); + MP_CHECKOK( mp_mul(&tmp1, &C2, &tmp2) ); + s_mp_mod_2d(&tmp2, k); + while (MP_SIGN(&tmp2) != MP_ZPOS) { + MP_CHECKOK( mp_add(&tmp2, &evenFactor, &tmp2) ); + } + + /* compute answer = v1 + u*m1 */ + MP_CHECKOK( mp_mul(&tmp2, &oddFactor, c) ); + MP_CHECKOK( mp_add(&oddPart, c, c) ); + /* not sure this is necessary, but it's low cost if not. */ + MP_CHECKOK( mp_mod(c, m, c) ); + +CLEANUP: + mp_clear(&oddFactor); + mp_clear(&evenFactor); + mp_clear(&oddPart); + mp_clear(&evenPart); + mp_clear(&C2); + mp_clear(&tmp1); + mp_clear(&tmp2); + return res; +} + + +/* {{{ mp_invmod(a, m, c) */ + +/* + mp_invmod(a, m, c) + + Compute c = a^-1 (mod m), if there is an inverse for a (mod m). + This is equivalent to the question of whether (a, m) = 1. If not, + MP_UNDEF is returned, and there is no inverse. + */ + +mp_err mp_invmod(const mp_int *a, const mp_int *m, mp_int *c) +{ + + ARGCHK(a && m && c, MP_BADARG); + + if(mp_cmp_z(a) == 0 || mp_cmp_z(m) == 0) + return MP_RANGE; + + if (mp_isodd(m)) { + return s_mp_invmod_odd_m(a, m, c); + } + if (mp_iseven(a)) + return MP_UNDEF; /* not invertable */ + + return s_mp_invmod_even_m(a, m, c); + +} /* end mp_invmod() */ + +/* }}} */ +#endif /* if MP_NUMTH */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ mp_print(mp, ofp) */ + +#if MP_IOFUNC +/* + mp_print(mp, ofp) + + Print a textual representation of the given mp_int on the output + stream 'ofp'. Output is generated using the internal radix. + */ + +void mp_print(mp_int *mp, FILE *ofp) +{ + int ix; + + if(mp == NULL || ofp == NULL) + return; + + fputc((SIGN(mp) == NEG) ? '-' : '+', ofp); + + for(ix = USED(mp) - 1; ix >= 0; ix--) { + fprintf(ofp, DIGIT_FMT, DIGIT(mp, ix)); + } + +} /* end mp_print() */ + +#endif /* if MP_IOFUNC */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* {{{ More I/O Functions */ + +/* {{{ mp_read_raw(mp, str, len) */ + +/* + mp_read_raw(mp, str, len) + + Read in a raw value (base 256) into the given mp_int + */ + +mp_err mp_read_raw(mp_int *mp, char *str, int len) +{ + int ix; + mp_err res; + unsigned char *ustr = (unsigned char *)str; + + ARGCHK(mp != NULL && str != NULL && len > 0, MP_BADARG); + + mp_zero(mp); + + /* Get sign from first byte */ + if(ustr[0]) + SIGN(mp) = NEG; + else + SIGN(mp) = ZPOS; + + /* Read the rest of the digits */ + for(ix = 1; ix < len; ix++) { + if((res = mp_mul_d(mp, 256, mp)) != MP_OKAY) + return res; + if((res = mp_add_d(mp, ustr[ix], mp)) != MP_OKAY) + return res; + } + + return MP_OKAY; + +} /* end mp_read_raw() */ + +/* }}} */ + +/* {{{ mp_raw_size(mp) */ + +int mp_raw_size(mp_int *mp) +{ + ARGCHK(mp != NULL, 0); + + return (USED(mp) * sizeof(mp_digit)) + 1; + +} /* end mp_raw_size() */ + +/* }}} */ + +/* {{{ mp_toraw(mp, str) */ + +mp_err mp_toraw(mp_int *mp, char *str) +{ + int ix, jx, pos = 1; + + ARGCHK(mp != NULL && str != NULL, MP_BADARG); + + str[0] = (char)SIGN(mp); + + /* Iterate over each digit... */ + for(ix = USED(mp) - 1; ix >= 0; ix--) { + mp_digit d = DIGIT(mp, ix); + + /* Unpack digit bytes, high order first */ + for(jx = sizeof(mp_digit) - 1; jx >= 0; jx--) { + str[pos++] = (char)(d >> (jx * CHAR_BIT)); + } + } + + return MP_OKAY; + +} /* end mp_toraw() */ + +/* }}} */ + +/* {{{ mp_read_radix(mp, str, radix) */ + +/* + mp_read_radix(mp, str, radix) + + Read an integer from the given string, and set mp to the resulting + value. The input is presumed to be in base 10. Leading non-digit + characters are ignored, and the function reads until a non-digit + character or the end of the string. + */ + +mp_err mp_read_radix(mp_int *mp, const char *str, int radix) +{ + int ix = 0, val = 0; + mp_err res; + mp_sign sig = ZPOS; + + ARGCHK(mp != NULL && str != NULL && radix >= 2 && radix <= MAX_RADIX, + MP_BADARG); + + mp_zero(mp); + + /* Skip leading non-digit characters until a digit or '-' or '+' */ + while(str[ix] && + (s_mp_tovalue(str[ix], radix) < 0) && + str[ix] != '-' && + str[ix] != '+') { + ++ix; + } + + if(str[ix] == '-') { + sig = NEG; + ++ix; + } else if(str[ix] == '+') { + sig = ZPOS; /* this is the default anyway... */ + ++ix; + } + + while((val = s_mp_tovalue(str[ix], radix)) >= 0) { + if((res = s_mp_mul_d(mp, radix)) != MP_OKAY) + return res; + if((res = s_mp_add_d(mp, val)) != MP_OKAY) + return res; + ++ix; + } + + if(s_mp_cmp_d(mp, 0) == MP_EQ) + SIGN(mp) = ZPOS; + else + SIGN(mp) = sig; + + return MP_OKAY; + +} /* end mp_read_radix() */ + +mp_err mp_read_variable_radix(mp_int *a, const char * str, int default_radix) +{ + int radix = default_radix; + int cx; + mp_sign sig = ZPOS; + mp_err res; + + /* Skip leading non-digit characters until a digit or '-' or '+' */ + while ((cx = *str) != 0 && + (s_mp_tovalue(cx, radix) < 0) && + cx != '-' && + cx != '+') { + ++str; + } + + if (cx == '-') { + sig = NEG; + ++str; + } else if (cx == '+') { + sig = ZPOS; /* this is the default anyway... */ + ++str; + } + + if (str[0] == '0') { + if ((str[1] | 0x20) == 'x') { + radix = 16; + str += 2; + } else { + radix = 8; + str++; + } + } + res = mp_read_radix(a, str, radix); + if (res == MP_OKAY) { + MP_SIGN(a) = (s_mp_cmp_d(a, 0) == MP_EQ) ? ZPOS : sig; + } + return res; +} + +/* }}} */ + +/* {{{ mp_radix_size(mp, radix) */ + +int mp_radix_size(mp_int *mp, int radix) +{ + int bits; + + if(!mp || radix < 2 || radix > MAX_RADIX) + return 0; + + bits = USED(mp) * DIGIT_BIT - 1; + + return s_mp_outlen(bits, radix); + +} /* end mp_radix_size() */ + +/* }}} */ + +/* {{{ mp_toradix(mp, str, radix) */ + +mp_err mp_toradix(mp_int *mp, char *str, int radix) +{ + int ix, pos = 0; + + ARGCHK(mp != NULL && str != NULL, MP_BADARG); + ARGCHK(radix > 1 && radix <= MAX_RADIX, MP_RANGE); + + if(mp_cmp_z(mp) == MP_EQ) { + str[0] = '0'; + str[1] = '\0'; + } else { + mp_err res; + mp_int tmp; + mp_sign sgn; + mp_digit rem, rdx = (mp_digit)radix; + char ch; + + if((res = mp_init_copy(&tmp, mp)) != MP_OKAY) + return res; + + /* Save sign for later, and take absolute value */ + sgn = SIGN(&tmp); SIGN(&tmp) = ZPOS; + + /* Generate output digits in reverse order */ + while(mp_cmp_z(&tmp) != 0) { + if((res = mp_div_d(&tmp, rdx, &tmp, &rem)) != MP_OKAY) { + mp_clear(&tmp); + return res; + } + + /* Generate digits, use capital letters */ + ch = s_mp_todigit(rem, radix, 0); + + str[pos++] = ch; + } + + /* Add - sign if original value was negative */ + if(sgn == NEG) + str[pos++] = '-'; + + /* Add trailing NUL to end the string */ + str[pos--] = '\0'; + + /* Reverse the digits and sign indicator */ + ix = 0; + while(ix < pos) { + char tmp = str[ix]; + + str[ix] = str[pos]; + str[pos] = tmp; + ++ix; + --pos; + } + + mp_clear(&tmp); + } + + return MP_OKAY; + +} /* end mp_toradix() */ + +/* }}} */ + +/* {{{ mp_tovalue(ch, r) */ + +int mp_tovalue(char ch, int r) +{ + return s_mp_tovalue(ch, r); + +} /* end mp_tovalue() */ + +/* }}} */ + +/* }}} */ + +/* {{{ mp_strerror(ec) */ + +/* + mp_strerror(ec) + + Return a string describing the meaning of error code 'ec'. The + string returned is allocated in static memory, so the caller should + not attempt to modify or free the memory associated with this + string. + */ +const char *mp_strerror(mp_err ec) +{ + int aec = (ec < 0) ? -ec : ec; + + /* Code values are negative, so the senses of these comparisons + are accurate */ + if(ec < MP_LAST_CODE || ec > MP_OKAY) { + return mp_err_string[0]; /* unknown error code */ + } else { + return mp_err_string[aec + 1]; + } + +} /* end mp_strerror() */ + +/* }}} */ + +/*========================================================================*/ +/*------------------------------------------------------------------------*/ +/* Static function definitions (internal use only) */ + +/* {{{ Memory management */ + +/* {{{ s_mp_grow(mp, min) */ + +/* Make sure there are at least 'min' digits allocated to mp */ +mp_err s_mp_grow(mp_int *mp, mp_size min) +{ + if(min > ALLOC(mp)) { + mp_digit *tmp; + + /* Set min to next nearest default precision block size */ + min = MP_ROUNDUP(min, s_mp_defprec); + + if((tmp = s_mp_alloc(min, sizeof(mp_digit), FLAG(mp))) == NULL) + return MP_MEM; + + s_mp_copy(DIGITS(mp), tmp, USED(mp)); + +#if MP_CRYPTO + s_mp_setz(DIGITS(mp), ALLOC(mp)); +#endif + s_mp_free(DIGITS(mp), ALLOC(mp)); + DIGITS(mp) = tmp; + ALLOC(mp) = min; + } + + return MP_OKAY; + +} /* end s_mp_grow() */ + +/* }}} */ + +/* {{{ s_mp_pad(mp, min) */ + +/* Make sure the used size of mp is at least 'min', growing if needed */ +mp_err s_mp_pad(mp_int *mp, mp_size min) +{ + if(min > USED(mp)) { + mp_err res; + + /* Make sure there is room to increase precision */ + if (min > ALLOC(mp)) { + if ((res = s_mp_grow(mp, min)) != MP_OKAY) + return res; + } else { + s_mp_setz(DIGITS(mp) + USED(mp), min - USED(mp)); + } + + /* Increase precision; should already be 0-filled */ + USED(mp) = min; + } + + return MP_OKAY; + +} /* end s_mp_pad() */ + +/* }}} */ + +/* {{{ s_mp_setz(dp, count) */ + +#if MP_MACRO == 0 +/* Set 'count' digits pointed to by dp to be zeroes */ +void s_mp_setz(mp_digit *dp, mp_size count) +{ +#if MP_MEMSET == 0 + int ix; + + for(ix = 0; ix < count; ix++) + dp[ix] = 0; +#else + memset(dp, 0, count * sizeof(mp_digit)); +#endif + +} /* end s_mp_setz() */ +#endif + +/* }}} */ + +/* {{{ s_mp_copy(sp, dp, count) */ + +#if MP_MACRO == 0 +/* Copy 'count' digits from sp to dp */ +void s_mp_copy(const mp_digit *sp, mp_digit *dp, mp_size count) +{ +#if MP_MEMCPY == 0 + int ix; + + for(ix = 0; ix < count; ix++) + dp[ix] = sp[ix]; +#else + memcpy(dp, sp, count * sizeof(mp_digit)); +#endif + +} /* end s_mp_copy() */ +#endif + +/* }}} */ + +/* {{{ s_mp_alloc(nb, ni, kmflag) */ + +#if MP_MACRO == 0 +/* Allocate ni records of nb bytes each, and return a pointer to that */ +void *s_mp_alloc(size_t nb, size_t ni, int kmflag) +{ + mp_int *mp; + ++mp_allocs; +#ifdef _KERNEL + mp = kmem_zalloc(nb * ni, kmflag); + if (mp != NULL) + FLAG(mp) = kmflag; + return (mp); +#else + return calloc(nb, ni); +#endif + +} /* end s_mp_alloc() */ +#endif + +/* }}} */ + +/* {{{ s_mp_free(ptr) */ + +#if MP_MACRO == 0 +/* Free the memory pointed to by ptr */ +void s_mp_free(void *ptr, mp_size alloc) +{ + if(ptr) { + ++mp_frees; +#ifdef _KERNEL + kmem_free(ptr, alloc * sizeof (mp_digit)); +#else + free(ptr); +#endif + } +} /* end s_mp_free() */ +#endif + +/* }}} */ + +/* {{{ s_mp_clamp(mp) */ + +#if MP_MACRO == 0 +/* Remove leading zeroes from the given value */ +void s_mp_clamp(mp_int *mp) +{ + mp_size used = MP_USED(mp); + while (used > 1 && DIGIT(mp, used - 1) == 0) + --used; + MP_USED(mp) = used; +} /* end s_mp_clamp() */ +#endif + +/* }}} */ + +/* {{{ s_mp_exch(a, b) */ + +/* Exchange the data for a and b; (b, a) = (a, b) */ +void s_mp_exch(mp_int *a, mp_int *b) +{ + mp_int tmp; + + tmp = *a; + *a = *b; + *b = tmp; + +} /* end s_mp_exch() */ + +/* }}} */ + +/* }}} */ + +/* {{{ Arithmetic helpers */ + +/* {{{ s_mp_lshd(mp, p) */ + +/* + Shift mp leftward by p digits, growing if needed, and zero-filling + the in-shifted digits at the right end. This is a convenient + alternative to multiplication by powers of the radix + The value of USED(mp) must already have been set to the value for + the shifted result. + */ + +mp_err s_mp_lshd(mp_int *mp, mp_size p) +{ + mp_err res; + mp_size pos; + int ix; + + if(p == 0) + return MP_OKAY; + + if (MP_USED(mp) == 1 && MP_DIGIT(mp, 0) == 0) + return MP_OKAY; + + if((res = s_mp_pad(mp, USED(mp) + p)) != MP_OKAY) + return res; + + pos = USED(mp) - 1; + + /* Shift all the significant figures over as needed */ + for(ix = pos - p; ix >= 0; ix--) + DIGIT(mp, ix + p) = DIGIT(mp, ix); + + /* Fill the bottom digits with zeroes */ + for(ix = 0; ix < p; ix++) + DIGIT(mp, ix) = 0; + + return MP_OKAY; + +} /* end s_mp_lshd() */ + +/* }}} */ + +/* {{{ s_mp_mul_2d(mp, d) */ + +/* + Multiply the integer by 2^d, where d is a number of bits. This + amounts to a bitwise shift of the value. + */ +mp_err s_mp_mul_2d(mp_int *mp, mp_digit d) +{ + mp_err res; + mp_digit dshift, bshift; + mp_digit mask; + + ARGCHK(mp != NULL, MP_BADARG); + + dshift = d / MP_DIGIT_BIT; + bshift = d % MP_DIGIT_BIT; + /* bits to be shifted out of the top word */ + mask = ((mp_digit)~0 << (MP_DIGIT_BIT - bshift)); + mask &= MP_DIGIT(mp, MP_USED(mp) - 1); + + if (MP_OKAY != (res = s_mp_pad(mp, MP_USED(mp) + dshift + (mask != 0) ))) + return res; + + if (dshift && MP_OKAY != (res = s_mp_lshd(mp, dshift))) + return res; + + if (bshift) { + mp_digit *pa = MP_DIGITS(mp); + mp_digit *alim = pa + MP_USED(mp); + mp_digit prev = 0; + + for (pa += dshift; pa < alim; ) { + mp_digit x = *pa; + *pa++ = (x << bshift) | prev; + prev = x >> (DIGIT_BIT - bshift); + } + } + + s_mp_clamp(mp); + return MP_OKAY; +} /* end s_mp_mul_2d() */ + +/* {{{ s_mp_rshd(mp, p) */ + +/* + Shift mp rightward by p digits. Maintains the invariant that + digits above the precision are all zero. Digits shifted off the + end are lost. Cannot fail. + */ + +void s_mp_rshd(mp_int *mp, mp_size p) +{ + mp_size ix; + mp_digit *src, *dst; + + if(p == 0) + return; + + /* Shortcut when all digits are to be shifted off */ + if(p >= USED(mp)) { + s_mp_setz(DIGITS(mp), ALLOC(mp)); + USED(mp) = 1; + SIGN(mp) = ZPOS; + return; + } + + /* Shift all the significant figures over as needed */ + dst = MP_DIGITS(mp); + src = dst + p; + for (ix = USED(mp) - p; ix > 0; ix--) + *dst++ = *src++; + + MP_USED(mp) -= p; + /* Fill the top digits with zeroes */ + while (p-- > 0) + *dst++ = 0; + +#if 0 + /* Strip off any leading zeroes */ + s_mp_clamp(mp); +#endif + +} /* end s_mp_rshd() */ + +/* }}} */ + +/* {{{ s_mp_div_2(mp) */ + +/* Divide by two -- take advantage of radix properties to do it fast */ +void s_mp_div_2(mp_int *mp) +{ + s_mp_div_2d(mp, 1); + +} /* end s_mp_div_2() */ + +/* }}} */ + +/* {{{ s_mp_mul_2(mp) */ + +mp_err s_mp_mul_2(mp_int *mp) +{ + mp_digit *pd; + int ix, used; + mp_digit kin = 0; + + /* Shift digits leftward by 1 bit */ + used = MP_USED(mp); + pd = MP_DIGITS(mp); + for (ix = 0; ix < used; ix++) { + mp_digit d = *pd; + *pd++ = (d << 1) | kin; + kin = (d >> (DIGIT_BIT - 1)); + } + + /* Deal with rollover from last digit */ + if (kin) { + if (ix >= ALLOC(mp)) { + mp_err res; + if((res = s_mp_grow(mp, ALLOC(mp) + 1)) != MP_OKAY) + return res; + } + + DIGIT(mp, ix) = kin; + USED(mp) += 1; + } + + return MP_OKAY; + +} /* end s_mp_mul_2() */ + +/* }}} */ + +/* {{{ s_mp_mod_2d(mp, d) */ + +/* + Remainder the integer by 2^d, where d is a number of bits. This + amounts to a bitwise AND of the value, and does not require the full + division code + */ +void s_mp_mod_2d(mp_int *mp, mp_digit d) +{ + mp_size ndig = (d / DIGIT_BIT), nbit = (d % DIGIT_BIT); + mp_size ix; + mp_digit dmask; + + if(ndig >= USED(mp)) + return; + + /* Flush all the bits above 2^d in its digit */ + dmask = ((mp_digit)1 << nbit) - 1; + DIGIT(mp, ndig) &= dmask; + + /* Flush all digits above the one with 2^d in it */ + for(ix = ndig + 1; ix < USED(mp); ix++) + DIGIT(mp, ix) = 0; + + s_mp_clamp(mp); + +} /* end s_mp_mod_2d() */ + +/* }}} */ + +/* {{{ s_mp_div_2d(mp, d) */ + +/* + Divide the integer by 2^d, where d is a number of bits. This + amounts to a bitwise shift of the value, and does not require the + full division code (used in Barrett reduction, see below) + */ +void s_mp_div_2d(mp_int *mp, mp_digit d) +{ + int ix; + mp_digit save, next, mask; + + s_mp_rshd(mp, d / DIGIT_BIT); + d %= DIGIT_BIT; + if (d) { + mask = ((mp_digit)1 << d) - 1; + save = 0; + for(ix = USED(mp) - 1; ix >= 0; ix--) { + next = DIGIT(mp, ix) & mask; + DIGIT(mp, ix) = (DIGIT(mp, ix) >> d) | (save << (DIGIT_BIT - d)); + save = next; + } + } + s_mp_clamp(mp); + +} /* end s_mp_div_2d() */ + +/* }}} */ + +/* {{{ s_mp_norm(a, b, *d) */ + +/* + s_mp_norm(a, b, *d) + + Normalize a and b for division, where b is the divisor. In order + that we might make good guesses for quotient digits, we want the + leading digit of b to be at least half the radix, which we + accomplish by multiplying a and b by a power of 2. The exponent + (shift count) is placed in *pd, so that the remainder can be shifted + back at the end of the division process. + */ + +mp_err s_mp_norm(mp_int *a, mp_int *b, mp_digit *pd) +{ + mp_digit d; + mp_digit mask; + mp_digit b_msd; + mp_err res = MP_OKAY; + + d = 0; + mask = DIGIT_MAX & ~(DIGIT_MAX >> 1); /* mask is msb of digit */ + b_msd = DIGIT(b, USED(b) - 1); + while (!(b_msd & mask)) { + b_msd <<= 1; + ++d; + } + + if (d) { + MP_CHECKOK( s_mp_mul_2d(a, d) ); + MP_CHECKOK( s_mp_mul_2d(b, d) ); + } + + *pd = d; +CLEANUP: + return res; + +} /* end s_mp_norm() */ + +/* }}} */ + +/* }}} */ + +/* {{{ Primitive digit arithmetic */ + +/* {{{ s_mp_add_d(mp, d) */ + +/* Add d to |mp| in place */ +mp_err s_mp_add_d(mp_int *mp, mp_digit d) /* unsigned digit addition */ +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + mp_word w, k = 0; + mp_size ix = 1; + + w = (mp_word)DIGIT(mp, 0) + d; + DIGIT(mp, 0) = ACCUM(w); + k = CARRYOUT(w); + + while(ix < USED(mp) && k) { + w = (mp_word)DIGIT(mp, ix) + k; + DIGIT(mp, ix) = ACCUM(w); + k = CARRYOUT(w); + ++ix; + } + + if(k != 0) { + mp_err res; + + if((res = s_mp_pad(mp, USED(mp) + 1)) != MP_OKAY) + return res; + + DIGIT(mp, ix) = (mp_digit)k; + } + + return MP_OKAY; +#else + mp_digit * pmp = MP_DIGITS(mp); + mp_digit sum, mp_i, carry = 0; + mp_err res = MP_OKAY; + int used = (int)MP_USED(mp); + + mp_i = *pmp; + *pmp++ = sum = d + mp_i; + carry = (sum < d); + while (carry && --used > 0) { + mp_i = *pmp; + *pmp++ = sum = carry + mp_i; + carry = !sum; + } + if (carry && !used) { + /* mp is growing */ + used = MP_USED(mp); + MP_CHECKOK( s_mp_pad(mp, used + 1) ); + MP_DIGIT(mp, used) = carry; + } +CLEANUP: + return res; +#endif +} /* end s_mp_add_d() */ + +/* }}} */ + +/* {{{ s_mp_sub_d(mp, d) */ + +/* Subtract d from |mp| in place, assumes |mp| > d */ +mp_err s_mp_sub_d(mp_int *mp, mp_digit d) /* unsigned digit subtract */ +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + mp_word w, b = 0; + mp_size ix = 1; + + /* Compute initial subtraction */ + w = (RADIX + (mp_word)DIGIT(mp, 0)) - d; + b = CARRYOUT(w) ? 0 : 1; + DIGIT(mp, 0) = ACCUM(w); + + /* Propagate borrows leftward */ + while(b && ix < USED(mp)) { + w = (RADIX + (mp_word)DIGIT(mp, ix)) - b; + b = CARRYOUT(w) ? 0 : 1; + DIGIT(mp, ix) = ACCUM(w); + ++ix; + } + + /* Remove leading zeroes */ + s_mp_clamp(mp); + + /* If we have a borrow out, it's a violation of the input invariant */ + if(b) + return MP_RANGE; + else + return MP_OKAY; +#else + mp_digit *pmp = MP_DIGITS(mp); + mp_digit mp_i, diff, borrow; + mp_size used = MP_USED(mp); + + mp_i = *pmp; + *pmp++ = diff = mp_i - d; + borrow = (diff > mp_i); + while (borrow && --used) { + mp_i = *pmp; + *pmp++ = diff = mp_i - borrow; + borrow = (diff > mp_i); + } + s_mp_clamp(mp); + return (borrow && !used) ? MP_RANGE : MP_OKAY; +#endif +} /* end s_mp_sub_d() */ + +/* }}} */ + +/* {{{ s_mp_mul_d(a, d) */ + +/* Compute a = a * d, single digit multiplication */ +mp_err s_mp_mul_d(mp_int *a, mp_digit d) +{ + mp_err res; + mp_size used; + int pow; + + if (!d) { + mp_zero(a); + return MP_OKAY; + } + if (d == 1) + return MP_OKAY; + if (0 <= (pow = s_mp_ispow2d(d))) { + return s_mp_mul_2d(a, (mp_digit)pow); + } + + used = MP_USED(a); + MP_CHECKOK( s_mp_pad(a, used + 1) ); + + s_mpv_mul_d(MP_DIGITS(a), used, d, MP_DIGITS(a)); + + s_mp_clamp(a); + +CLEANUP: + return res; + +} /* end s_mp_mul_d() */ + +/* }}} */ + +/* {{{ s_mp_div_d(mp, d, r) */ + +/* + s_mp_div_d(mp, d, r) + + Compute the quotient mp = mp / d and remainder r = mp mod d, for a + single digit d. If r is null, the remainder will be discarded. + */ + +mp_err s_mp_div_d(mp_int *mp, mp_digit d, mp_digit *r) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_DIV_WORD) + mp_word w = 0, q; +#else + mp_digit w, q; +#endif + int ix; + mp_err res; + mp_int quot; + mp_int rem; + + if(d == 0) + return MP_RANGE; + if (d == 1) { + if (r) + *r = 0; + return MP_OKAY; + } + /* could check for power of 2 here, but mp_div_d does that. */ + if (MP_USED(mp) == 1) { + mp_digit n = MP_DIGIT(mp,0); + mp_digit rem; + + q = n / d; + rem = n % d; + MP_DIGIT(mp,0) = q; + if (r) + *r = rem; + return MP_OKAY; + } + + MP_DIGITS(&rem) = 0; + MP_DIGITS(") = 0; + /* Make room for the quotient */ + MP_CHECKOK( mp_init_size(", USED(mp), FLAG(mp)) ); + +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_DIV_WORD) + for(ix = USED(mp) - 1; ix >= 0; ix--) { + w = (w << DIGIT_BIT) | DIGIT(mp, ix); + + if(w >= d) { + q = w / d; + w = w % d; + } else { + q = 0; + } + + s_mp_lshd(", 1); + DIGIT(", 0) = (mp_digit)q; + } +#else + { + mp_digit p; +#if !defined(MP_ASSEMBLY_DIV_2DX1D) + mp_digit norm; +#endif + + MP_CHECKOK( mp_init_copy(&rem, mp) ); + +#if !defined(MP_ASSEMBLY_DIV_2DX1D) + MP_DIGIT(", 0) = d; + MP_CHECKOK( s_mp_norm(&rem, ", &norm) ); + if (norm) + d <<= norm; + MP_DIGIT(", 0) = 0; +#endif + + p = 0; + for (ix = USED(&rem) - 1; ix >= 0; ix--) { + w = DIGIT(&rem, ix); + + if (p) { + MP_CHECKOK( s_mpv_div_2dx1d(p, w, d, &q, &w) ); + } else if (w >= d) { + q = w / d; + w = w % d; + } else { + q = 0; + } + + MP_CHECKOK( s_mp_lshd(", 1) ); + DIGIT(", 0) = q; + p = w; + } +#if !defined(MP_ASSEMBLY_DIV_2DX1D) + if (norm) + w >>= norm; +#endif + } +#endif + + /* Deliver the remainder, if desired */ + if(r) + *r = (mp_digit)w; + + s_mp_clamp("); + mp_exch(", mp); +CLEANUP: + mp_clear("); + mp_clear(&rem); + + return res; +} /* end s_mp_div_d() */ + +/* }}} */ + + +/* }}} */ + +/* {{{ Primitive full arithmetic */ + +/* {{{ s_mp_add(a, b) */ + +/* Compute a = |a| + |b| */ +mp_err s_mp_add(mp_int *a, const mp_int *b) /* magnitude addition */ +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + mp_word w = 0; +#else + mp_digit d, sum, carry = 0; +#endif + mp_digit *pa, *pb; + mp_size ix; + mp_size used; + mp_err res; + + /* Make sure a has enough precision for the output value */ + if((USED(b) > USED(a)) && (res = s_mp_pad(a, USED(b))) != MP_OKAY) + return res; + + /* + Add up all digits up to the precision of b. If b had initially + the same precision as a, or greater, we took care of it by the + padding step above, so there is no problem. If b had initially + less precision, we'll have to make sure the carry out is duly + propagated upward among the higher-order digits of the sum. + */ + pa = MP_DIGITS(a); + pb = MP_DIGITS(b); + used = MP_USED(b); + for(ix = 0; ix < used; ix++) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + w = w + *pa + *pb++; + *pa++ = ACCUM(w); + w = CARRYOUT(w); +#else + d = *pa; + sum = d + *pb++; + d = (sum < d); /* detect overflow */ + *pa++ = sum += carry; + carry = d + (sum < carry); /* detect overflow */ +#endif + } + + /* If we run out of 'b' digits before we're actually done, make + sure the carries get propagated upward... + */ + used = MP_USED(a); +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + while (w && ix < used) { + w = w + *pa; + *pa++ = ACCUM(w); + w = CARRYOUT(w); + ++ix; + } +#else + while (carry && ix < used) { + sum = carry + *pa; + *pa++ = sum; + carry = !sum; + ++ix; + } +#endif + + /* If there's an overall carry out, increase precision and include + it. We could have done this initially, but why touch the memory + allocator unless we're sure we have to? + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + if (w) { + if((res = s_mp_pad(a, used + 1)) != MP_OKAY) + return res; + + DIGIT(a, ix) = (mp_digit)w; + } +#else + if (carry) { + if((res = s_mp_pad(a, used + 1)) != MP_OKAY) + return res; + + DIGIT(a, used) = carry; + } +#endif + + return MP_OKAY; +} /* end s_mp_add() */ + +/* }}} */ + +/* Compute c = |a| + |b| */ /* magnitude addition */ +mp_err s_mp_add_3arg(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_digit *pa, *pb, *pc; +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + mp_word w = 0; +#else + mp_digit sum, carry = 0, d; +#endif + mp_size ix; + mp_size used; + mp_err res; + + MP_SIGN(c) = MP_SIGN(a); + if (MP_USED(a) < MP_USED(b)) { + const mp_int *xch = a; + a = b; + b = xch; + } + + /* Make sure a has enough precision for the output value */ + if (MP_OKAY != (res = s_mp_pad(c, MP_USED(a)))) + return res; + + /* + Add up all digits up to the precision of b. If b had initially + the same precision as a, or greater, we took care of it by the + exchange step above, so there is no problem. If b had initially + less precision, we'll have to make sure the carry out is duly + propagated upward among the higher-order digits of the sum. + */ + pa = MP_DIGITS(a); + pb = MP_DIGITS(b); + pc = MP_DIGITS(c); + used = MP_USED(b); + for (ix = 0; ix < used; ix++) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + w = w + *pa++ + *pb++; + *pc++ = ACCUM(w); + w = CARRYOUT(w); +#else + d = *pa++; + sum = d + *pb++; + d = (sum < d); /* detect overflow */ + *pc++ = sum += carry; + carry = d + (sum < carry); /* detect overflow */ +#endif + } + + /* If we run out of 'b' digits before we're actually done, make + sure the carries get propagated upward... + */ + for (used = MP_USED(a); ix < used; ++ix) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + w = w + *pa++; + *pc++ = ACCUM(w); + w = CARRYOUT(w); +#else + *pc++ = sum = carry + *pa++; + carry = (sum < carry); +#endif + } + + /* If there's an overall carry out, increase precision and include + it. We could have done this initially, but why touch the memory + allocator unless we're sure we have to? + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + if (w) { + if((res = s_mp_pad(c, used + 1)) != MP_OKAY) + return res; + + DIGIT(c, used) = (mp_digit)w; + ++used; + } +#else + if (carry) { + if((res = s_mp_pad(c, used + 1)) != MP_OKAY) + return res; + + DIGIT(c, used) = carry; + ++used; + } +#endif + MP_USED(c) = used; + return MP_OKAY; +} +/* {{{ s_mp_add_offset(a, b, offset) */ + +/* Compute a = |a| + ( |b| * (RADIX ** offset) ) */ +mp_err s_mp_add_offset(mp_int *a, mp_int *b, mp_size offset) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + mp_word w, k = 0; +#else + mp_digit d, sum, carry = 0; +#endif + mp_size ib; + mp_size ia; + mp_size lim; + mp_err res; + + /* Make sure a has enough precision for the output value */ + lim = MP_USED(b) + offset; + if((lim > USED(a)) && (res = s_mp_pad(a, lim)) != MP_OKAY) + return res; + + /* + Add up all digits up to the precision of b. If b had initially + the same precision as a, or greater, we took care of it by the + padding step above, so there is no problem. If b had initially + less precision, we'll have to make sure the carry out is duly + propagated upward among the higher-order digits of the sum. + */ + lim = USED(b); + for(ib = 0, ia = offset; ib < lim; ib++, ia++) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + w = (mp_word)DIGIT(a, ia) + DIGIT(b, ib) + k; + DIGIT(a, ia) = ACCUM(w); + k = CARRYOUT(w); +#else + d = MP_DIGIT(a, ia); + sum = d + MP_DIGIT(b, ib); + d = (sum < d); + MP_DIGIT(a,ia) = sum += carry; + carry = d + (sum < carry); +#endif + } + + /* If we run out of 'b' digits before we're actually done, make + sure the carries get propagated upward... + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + for (lim = MP_USED(a); k && (ia < lim); ++ia) { + w = (mp_word)DIGIT(a, ia) + k; + DIGIT(a, ia) = ACCUM(w); + k = CARRYOUT(w); + } +#else + for (lim = MP_USED(a); carry && (ia < lim); ++ia) { + d = MP_DIGIT(a, ia); + MP_DIGIT(a,ia) = sum = d + carry; + carry = (sum < d); + } +#endif + + /* If there's an overall carry out, increase precision and include + it. We could have done this initially, but why touch the memory + allocator unless we're sure we have to? + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_ADD_WORD) + if(k) { + if((res = s_mp_pad(a, USED(a) + 1)) != MP_OKAY) + return res; + + DIGIT(a, ia) = (mp_digit)k; + } +#else + if (carry) { + if((res = s_mp_pad(a, lim + 1)) != MP_OKAY) + return res; + + DIGIT(a, lim) = carry; + } +#endif + s_mp_clamp(a); + + return MP_OKAY; + +} /* end s_mp_add_offset() */ + +/* }}} */ + +/* {{{ s_mp_sub(a, b) */ + +/* Compute a = |a| - |b|, assumes |a| >= |b| */ +mp_err s_mp_sub(mp_int *a, const mp_int *b) /* magnitude subtract */ +{ + mp_digit *pa, *pb, *limit; +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + mp_sword w = 0; +#else + mp_digit d, diff, borrow = 0; +#endif + + /* + Subtract and propagate borrow. Up to the precision of b, this + accounts for the digits of b; after that, we just make sure the + carries get to the right place. This saves having to pad b out to + the precision of a just to make the loops work right... + */ + pa = MP_DIGITS(a); + pb = MP_DIGITS(b); + limit = pb + MP_USED(b); + while (pb < limit) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + w = w + *pa - *pb++; + *pa++ = ACCUM(w); + w >>= MP_DIGIT_BIT; +#else + d = *pa; + diff = d - *pb++; + d = (diff > d); /* detect borrow */ + if (borrow && --diff == MP_DIGIT_MAX) + ++d; + *pa++ = diff; + borrow = d; +#endif + } + limit = MP_DIGITS(a) + MP_USED(a); +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + while (w && pa < limit) { + w = w + *pa; + *pa++ = ACCUM(w); + w >>= MP_DIGIT_BIT; + } +#else + while (borrow && pa < limit) { + d = *pa; + *pa++ = diff = d - borrow; + borrow = (diff > d); + } +#endif + + /* Clobber any leading zeroes we created */ + s_mp_clamp(a); + + /* + If there was a borrow out, then |b| > |a| in violation + of our input invariant. We've already done the work, + but we'll at least complain about it... + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + return w ? MP_RANGE : MP_OKAY; +#else + return borrow ? MP_RANGE : MP_OKAY; +#endif +} /* end s_mp_sub() */ + +/* }}} */ + +/* Compute c = |a| - |b|, assumes |a| >= |b| */ /* magnitude subtract */ +mp_err s_mp_sub_3arg(const mp_int *a, const mp_int *b, mp_int *c) +{ + mp_digit *pa, *pb, *pc; +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + mp_sword w = 0; +#else + mp_digit d, diff, borrow = 0; +#endif + int ix, limit; + mp_err res; + + MP_SIGN(c) = MP_SIGN(a); + + /* Make sure a has enough precision for the output value */ + if (MP_OKAY != (res = s_mp_pad(c, MP_USED(a)))) + return res; + + /* + Subtract and propagate borrow. Up to the precision of b, this + accounts for the digits of b; after that, we just make sure the + carries get to the right place. This saves having to pad b out to + the precision of a just to make the loops work right... + */ + pa = MP_DIGITS(a); + pb = MP_DIGITS(b); + pc = MP_DIGITS(c); + limit = MP_USED(b); + for (ix = 0; ix < limit; ++ix) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + w = w + *pa++ - *pb++; + *pc++ = ACCUM(w); + w >>= MP_DIGIT_BIT; +#else + d = *pa++; + diff = d - *pb++; + d = (diff > d); + if (borrow && --diff == MP_DIGIT_MAX) + ++d; + *pc++ = diff; + borrow = d; +#endif + } + for (limit = MP_USED(a); ix < limit; ++ix) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + w = w + *pa++; + *pc++ = ACCUM(w); + w >>= MP_DIGIT_BIT; +#else + d = *pa++; + *pc++ = diff = d - borrow; + borrow = (diff > d); +#endif + } + + /* Clobber any leading zeroes we created */ + MP_USED(c) = ix; + s_mp_clamp(c); + + /* + If there was a borrow out, then |b| > |a| in violation + of our input invariant. We've already done the work, + but we'll at least complain about it... + */ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_SUB_WORD) + return w ? MP_RANGE : MP_OKAY; +#else + return borrow ? MP_RANGE : MP_OKAY; +#endif +} +/* {{{ s_mp_mul(a, b) */ + +/* Compute a = |a| * |b| */ +mp_err s_mp_mul(mp_int *a, const mp_int *b) +{ + return mp_mul(a, b, a); +} /* end s_mp_mul() */ + +/* }}} */ + +#if defined(MP_USE_UINT_DIGIT) && defined(MP_USE_LONG_LONG_MULTIPLY) +/* This trick works on Sparc V8 CPUs with the Workshop compilers. */ +#define MP_MUL_DxD(a, b, Phi, Plo) \ + { unsigned long long product = (unsigned long long)a * b; \ + Plo = (mp_digit)product; \ + Phi = (mp_digit)(product >> MP_DIGIT_BIT); } +#elif defined(OSF1) +#define MP_MUL_DxD(a, b, Phi, Plo) \ + { Plo = asm ("mulq %a0, %a1, %v0", a, b);\ + Phi = asm ("umulh %a0, %a1, %v0", a, b); } +#else +#define MP_MUL_DxD(a, b, Phi, Plo) \ + { mp_digit a0b1, a1b0; \ + Plo = (a & MP_HALF_DIGIT_MAX) * (b & MP_HALF_DIGIT_MAX); \ + Phi = (a >> MP_HALF_DIGIT_BIT) * (b >> MP_HALF_DIGIT_BIT); \ + a0b1 = (a & MP_HALF_DIGIT_MAX) * (b >> MP_HALF_DIGIT_BIT); \ + a1b0 = (a >> MP_HALF_DIGIT_BIT) * (b & MP_HALF_DIGIT_MAX); \ + a1b0 += a0b1; \ + Phi += a1b0 >> MP_HALF_DIGIT_BIT; \ + if (a1b0 < a0b1) \ + Phi += MP_HALF_RADIX; \ + a1b0 <<= MP_HALF_DIGIT_BIT; \ + Plo += a1b0; \ + if (Plo < a1b0) \ + ++Phi; \ + } +#endif + +#if !defined(MP_ASSEMBLY_MULTIPLY) +/* c = a * b */ +void s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_MUL_WORD) + mp_digit d = 0; + + /* Inner product: Digits of a */ + while (a_len--) { + mp_word w = ((mp_word)b * *a++) + d; + *c++ = ACCUM(w); + d = CARRYOUT(w); + } + *c = d; +#else + mp_digit carry = 0; + while (a_len--) { + mp_digit a_i = *a++; + mp_digit a0b0, a1b1; + + MP_MUL_DxD(a_i, b, a1b1, a0b0); + + a0b0 += carry; + if (a0b0 < carry) + ++a1b1; + *c++ = a0b0; + carry = a1b1; + } + *c = carry; +#endif +} + +/* c += a * b */ +void s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, + mp_digit *c) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_MUL_WORD) + mp_digit d = 0; + + /* Inner product: Digits of a */ + while (a_len--) { + mp_word w = ((mp_word)b * *a++) + *c + d; + *c++ = ACCUM(w); + d = CARRYOUT(w); + } + *c = d; +#else + mp_digit carry = 0; + while (a_len--) { + mp_digit a_i = *a++; + mp_digit a0b0, a1b1; + + MP_MUL_DxD(a_i, b, a1b1, a0b0); + + a0b0 += carry; + if (a0b0 < carry) + ++a1b1; + a0b0 += a_i = *c; + if (a0b0 < a_i) + ++a1b1; + *c++ = a0b0; + carry = a1b1; + } + *c = carry; +#endif +} + +/* Presently, this is only used by the Montgomery arithmetic code. */ +/* c += a * b */ +void s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_MUL_WORD) + mp_digit d = 0; + + /* Inner product: Digits of a */ + while (a_len--) { + mp_word w = ((mp_word)b * *a++) + *c + d; + *c++ = ACCUM(w); + d = CARRYOUT(w); + } + + while (d) { + mp_word w = (mp_word)*c + d; + *c++ = ACCUM(w); + d = CARRYOUT(w); + } +#else + mp_digit carry = 0; + while (a_len--) { + mp_digit a_i = *a++; + mp_digit a0b0, a1b1; + + MP_MUL_DxD(a_i, b, a1b1, a0b0); + + a0b0 += carry; + if (a0b0 < carry) + ++a1b1; + + a0b0 += a_i = *c; + if (a0b0 < a_i) + ++a1b1; + + *c++ = a0b0; + carry = a1b1; + } + while (carry) { + mp_digit c_i = *c; + carry += c_i; + *c++ = carry; + carry = carry < c_i; + } +#endif +} +#endif + +#if defined(MP_USE_UINT_DIGIT) && defined(MP_USE_LONG_LONG_MULTIPLY) +/* This trick works on Sparc V8 CPUs with the Workshop compilers. */ +#define MP_SQR_D(a, Phi, Plo) \ + { unsigned long long square = (unsigned long long)a * a; \ + Plo = (mp_digit)square; \ + Phi = (mp_digit)(square >> MP_DIGIT_BIT); } +#elif defined(OSF1) +#define MP_SQR_D(a, Phi, Plo) \ + { Plo = asm ("mulq %a0, %a0, %v0", a);\ + Phi = asm ("umulh %a0, %a0, %v0", a); } +#else +#define MP_SQR_D(a, Phi, Plo) \ + { mp_digit Pmid; \ + Plo = (a & MP_HALF_DIGIT_MAX) * (a & MP_HALF_DIGIT_MAX); \ + Phi = (a >> MP_HALF_DIGIT_BIT) * (a >> MP_HALF_DIGIT_BIT); \ + Pmid = (a & MP_HALF_DIGIT_MAX) * (a >> MP_HALF_DIGIT_BIT); \ + Phi += Pmid >> (MP_HALF_DIGIT_BIT - 1); \ + Pmid <<= (MP_HALF_DIGIT_BIT + 1); \ + Plo += Pmid; \ + if (Plo < Pmid) \ + ++Phi; \ + } +#endif + +#if !defined(MP_ASSEMBLY_SQUARE) +/* Add the squares of the digits of a to the digits of b. */ +void s_mpv_sqr_add_prop(const mp_digit *pa, mp_size a_len, mp_digit *ps) +{ +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_MUL_WORD) + mp_word w; + mp_digit d; + mp_size ix; + + w = 0; +#define ADD_SQUARE(n) \ + d = pa[n]; \ + w += (d * (mp_word)d) + ps[2*n]; \ + ps[2*n] = ACCUM(w); \ + w = (w >> DIGIT_BIT) + ps[2*n+1]; \ + ps[2*n+1] = ACCUM(w); \ + w = (w >> DIGIT_BIT) + + for (ix = a_len; ix >= 4; ix -= 4) { + ADD_SQUARE(0); + ADD_SQUARE(1); + ADD_SQUARE(2); + ADD_SQUARE(3); + pa += 4; + ps += 8; + } + if (ix) { + ps += 2*ix; + pa += ix; + switch (ix) { + case 3: ADD_SQUARE(-3); /* FALLTHRU */ + case 2: ADD_SQUARE(-2); /* FALLTHRU */ + case 1: ADD_SQUARE(-1); /* FALLTHRU */ + case 0: break; + } + } + while (w) { + w += *ps; + *ps++ = ACCUM(w); + w = (w >> DIGIT_BIT); + } +#else + mp_digit carry = 0; + while (a_len--) { + mp_digit a_i = *pa++; + mp_digit a0a0, a1a1; + + MP_SQR_D(a_i, a1a1, a0a0); + + /* here a1a1 and a0a0 constitute a_i ** 2 */ + a0a0 += carry; + if (a0a0 < carry) + ++a1a1; + + /* now add to ps */ + a0a0 += a_i = *ps; + if (a0a0 < a_i) + ++a1a1; + *ps++ = a0a0; + a1a1 += a_i = *ps; + carry = (a1a1 < a_i); + *ps++ = a1a1; + } + while (carry) { + mp_digit s_i = *ps; + carry += s_i; + *ps++ = carry; + carry = carry < s_i; + } +#endif +} +#endif + +#if (defined(MP_NO_MP_WORD) || defined(MP_NO_DIV_WORD)) \ +&& !defined(MP_ASSEMBLY_DIV_2DX1D) +/* +** Divide 64-bit (Nhi,Nlo) by 32-bit divisor, which must be normalized +** so its high bit is 1. This code is from NSPR. +*/ +mp_err s_mpv_div_2dx1d(mp_digit Nhi, mp_digit Nlo, mp_digit divisor, + mp_digit *qp, mp_digit *rp) +{ + mp_digit d1, d0, q1, q0; + mp_digit r1, r0, m; + + d1 = divisor >> MP_HALF_DIGIT_BIT; + d0 = divisor & MP_HALF_DIGIT_MAX; + r1 = Nhi % d1; + q1 = Nhi / d1; + m = q1 * d0; + r1 = (r1 << MP_HALF_DIGIT_BIT) | (Nlo >> MP_HALF_DIGIT_BIT); + if (r1 < m) { + q1--, r1 += divisor; + if (r1 >= divisor && r1 < m) { + q1--, r1 += divisor; + } + } + r1 -= m; + r0 = r1 % d1; + q0 = r1 / d1; + m = q0 * d0; + r0 = (r0 << MP_HALF_DIGIT_BIT) | (Nlo & MP_HALF_DIGIT_MAX); + if (r0 < m) { + q0--, r0 += divisor; + if (r0 >= divisor && r0 < m) { + q0--, r0 += divisor; + } + } + if (qp) + *qp = (q1 << MP_HALF_DIGIT_BIT) | q0; + if (rp) + *rp = r0 - m; + return MP_OKAY; +} +#endif + +#if MP_SQUARE +/* {{{ s_mp_sqr(a) */ + +mp_err s_mp_sqr(mp_int *a) +{ + mp_err res; + mp_int tmp; + + if((res = mp_init_size(&tmp, 2 * USED(a), FLAG(a))) != MP_OKAY) + return res; + res = mp_sqr(a, &tmp); + if (res == MP_OKAY) { + s_mp_exch(&tmp, a); + } + mp_clear(&tmp); + return res; +} + +/* }}} */ +#endif + +/* {{{ s_mp_div(a, b) */ + +/* + s_mp_div(a, b) + + Compute a = a / b and b = a mod b. Assumes b > a. + */ + +mp_err s_mp_div(mp_int *rem, /* i: dividend, o: remainder */ + mp_int *div, /* i: divisor */ + mp_int *quot) /* i: 0; o: quotient */ +{ + mp_int part, t; +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_DIV_WORD) + mp_word q_msd; +#else + mp_digit q_msd; +#endif + mp_err res; + mp_digit d; + mp_digit div_msd; + int ix; + + if(mp_cmp_z(div) == 0) + return MP_RANGE; + + /* Shortcut if divisor is power of two */ + if((ix = s_mp_ispow2(div)) >= 0) { + MP_CHECKOK( mp_copy(rem, quot) ); + s_mp_div_2d(quot, (mp_digit)ix); + s_mp_mod_2d(rem, (mp_digit)ix); + + return MP_OKAY; + } + + DIGITS(&t) = 0; + MP_SIGN(rem) = ZPOS; + MP_SIGN(div) = ZPOS; + + /* A working temporary for division */ + MP_CHECKOK( mp_init_size(&t, MP_ALLOC(rem), FLAG(rem))); + + /* Normalize to optimize guessing */ + MP_CHECKOK( s_mp_norm(rem, div, &d) ); + + part = *rem; + + /* Perform the division itself...woo! */ + MP_USED(quot) = MP_ALLOC(quot); + + /* Find a partial substring of rem which is at least div */ + /* If we didn't find one, we're finished dividing */ + while (MP_USED(rem) > MP_USED(div) || s_mp_cmp(rem, div) >= 0) { + int i; + int unusedRem; + + unusedRem = MP_USED(rem) - MP_USED(div); + MP_DIGITS(&part) = MP_DIGITS(rem) + unusedRem; + MP_ALLOC(&part) = MP_ALLOC(rem) - unusedRem; + MP_USED(&part) = MP_USED(div); + if (s_mp_cmp(&part, div) < 0) { + -- unusedRem; +#if MP_ARGCHK == 2 + assert(unusedRem >= 0); +#endif + -- MP_DIGITS(&part); + ++ MP_USED(&part); + ++ MP_ALLOC(&part); + } + + /* Compute a guess for the next quotient digit */ + q_msd = MP_DIGIT(&part, MP_USED(&part) - 1); + div_msd = MP_DIGIT(div, MP_USED(div) - 1); + if (q_msd >= div_msd) { + q_msd = 1; + } else if (MP_USED(&part) > 1) { +#if !defined(MP_NO_MP_WORD) && !defined(MP_NO_DIV_WORD) + q_msd = (q_msd << MP_DIGIT_BIT) | MP_DIGIT(&part, MP_USED(&part) - 2); + q_msd /= div_msd; + if (q_msd == RADIX) + --q_msd; +#else + mp_digit r; + MP_CHECKOK( s_mpv_div_2dx1d(q_msd, MP_DIGIT(&part, MP_USED(&part) - 2), + div_msd, &q_msd, &r) ); +#endif + } else { + q_msd = 0; + } +#if MP_ARGCHK == 2 + assert(q_msd > 0); /* This case should never occur any more. */ +#endif + if (q_msd <= 0) + break; + + /* See what that multiplies out to */ + mp_copy(div, &t); + MP_CHECKOK( s_mp_mul_d(&t, (mp_digit)q_msd) ); + + /* + If it's too big, back it off. We should not have to do this + more than once, or, in rare cases, twice. Knuth describes a + method by which this could be reduced to a maximum of once, but + I didn't implement that here. + * When using s_mpv_div_2dx1d, we may have to do this 3 times. + */ + for (i = 4; s_mp_cmp(&t, &part) > 0 && i > 0; --i) { + --q_msd; + s_mp_sub(&t, div); /* t -= div */ + } + if (i < 0) { + res = MP_RANGE; + goto CLEANUP; + } + + /* At this point, q_msd should be the right next digit */ + MP_CHECKOK( s_mp_sub(&part, &t) ); /* part -= t */ + s_mp_clamp(rem); + + /* + Include the digit in the quotient. We allocated enough memory + for any quotient we could ever possibly get, so we should not + have to check for failures here + */ + MP_DIGIT(quot, unusedRem) = (mp_digit)q_msd; + } + + /* Denormalize remainder */ + if (d) { + s_mp_div_2d(rem, d); + } + + s_mp_clamp(quot); + +CLEANUP: + mp_clear(&t); + + return res; + +} /* end s_mp_div() */ + + +/* }}} */ + +/* {{{ s_mp_2expt(a, k) */ + +mp_err s_mp_2expt(mp_int *a, mp_digit k) +{ + mp_err res; + mp_size dig, bit; + + dig = k / DIGIT_BIT; + bit = k % DIGIT_BIT; + + mp_zero(a); + if((res = s_mp_pad(a, dig + 1)) != MP_OKAY) + return res; + + DIGIT(a, dig) |= ((mp_digit)1 << bit); + + return MP_OKAY; + +} /* end s_mp_2expt() */ + +/* }}} */ + +/* {{{ s_mp_reduce(x, m, mu) */ + +/* + Compute Barrett reduction, x (mod m), given a precomputed value for + mu = b^2k / m, where b = RADIX and k = #digits(m). This should be + faster than straight division, when many reductions by the same + value of m are required (such as in modular exponentiation). This + can nearly halve the time required to do modular exponentiation, + as compared to using the full integer divide to reduce. + + This algorithm was derived from the _Handbook of Applied + Cryptography_ by Menezes, Oorschot and VanStone, Ch. 14, + pp. 603-604. + */ + +mp_err s_mp_reduce(mp_int *x, const mp_int *m, const mp_int *mu) +{ + mp_int q; + mp_err res; + + if((res = mp_init_copy(&q, x)) != MP_OKAY) + return res; + + s_mp_rshd(&q, USED(m) - 1); /* q1 = x / b^(k-1) */ + s_mp_mul(&q, mu); /* q2 = q1 * mu */ + s_mp_rshd(&q, USED(m) + 1); /* q3 = q2 / b^(k+1) */ + + /* x = x mod b^(k+1), quick (no division) */ + s_mp_mod_2d(x, DIGIT_BIT * (USED(m) + 1)); + + /* q = q * m mod b^(k+1), quick (no division) */ + s_mp_mul(&q, m); + s_mp_mod_2d(&q, DIGIT_BIT * (USED(m) + 1)); + + /* x = x - q */ + if((res = mp_sub(x, &q, x)) != MP_OKAY) + goto CLEANUP; + + /* If x < 0, add b^(k+1) to it */ + if(mp_cmp_z(x) < 0) { + mp_set(&q, 1); + if((res = s_mp_lshd(&q, USED(m) + 1)) != MP_OKAY) + goto CLEANUP; + if((res = mp_add(x, &q, x)) != MP_OKAY) + goto CLEANUP; + } + + /* Back off if it's too big */ + while(mp_cmp(x, m) >= 0) { + if((res = s_mp_sub(x, m)) != MP_OKAY) + break; + } + + CLEANUP: + mp_clear(&q); + + return res; + +} /* end s_mp_reduce() */ + +/* }}} */ + +/* }}} */ + +/* {{{ Primitive comparisons */ + +/* {{{ s_mp_cmp(a, b) */ + +/* Compare |a| <=> |b|, return 0 if equal, <0 if a0 if a>b */ +int s_mp_cmp(const mp_int *a, const mp_int *b) +{ + mp_size used_a = MP_USED(a); + { + mp_size used_b = MP_USED(b); + + if (used_a > used_b) + goto IS_GT; + if (used_a < used_b) + goto IS_LT; + } + { + mp_digit *pa, *pb; + mp_digit da = 0, db = 0; + +#define CMP_AB(n) if ((da = pa[n]) != (db = pb[n])) goto done + + pa = MP_DIGITS(a) + used_a; + pb = MP_DIGITS(b) + used_a; + while (used_a >= 4) { + pa -= 4; + pb -= 4; + used_a -= 4; + CMP_AB(3); + CMP_AB(2); + CMP_AB(1); + CMP_AB(0); + } + while (used_a-- > 0 && ((da = *--pa) == (db = *--pb))) + /* do nothing */; +done: + if (da > db) + goto IS_GT; + if (da < db) + goto IS_LT; + } + return MP_EQ; +IS_LT: + return MP_LT; +IS_GT: + return MP_GT; +} /* end s_mp_cmp() */ + +/* }}} */ + +/* {{{ s_mp_cmp_d(a, d) */ + +/* Compare |a| <=> d, return 0 if equal, <0 if a0 if a>d */ +int s_mp_cmp_d(const mp_int *a, mp_digit d) +{ + if(USED(a) > 1) + return MP_GT; + + if(DIGIT(a, 0) < d) + return MP_LT; + else if(DIGIT(a, 0) > d) + return MP_GT; + else + return MP_EQ; + +} /* end s_mp_cmp_d() */ + +/* }}} */ + +/* {{{ s_mp_ispow2(v) */ + +/* + Returns -1 if the value is not a power of two; otherwise, it returns + k such that v = 2^k, i.e. lg(v). + */ +int s_mp_ispow2(const mp_int *v) +{ + mp_digit d; + int extra = 0, ix; + + ix = MP_USED(v) - 1; + d = MP_DIGIT(v, ix); /* most significant digit of v */ + + extra = s_mp_ispow2d(d); + if (extra < 0 || ix == 0) + return extra; + + while (--ix >= 0) { + if (DIGIT(v, ix) != 0) + return -1; /* not a power of two */ + extra += MP_DIGIT_BIT; + } + + return extra; + +} /* end s_mp_ispow2() */ + +/* }}} */ + +/* {{{ s_mp_ispow2d(d) */ + +int s_mp_ispow2d(mp_digit d) +{ + if ((d != 0) && ((d & (d-1)) == 0)) { /* d is a power of 2 */ + int pow = 0; +#if defined (MP_USE_UINT_DIGIT) + if (d & 0xffff0000U) + pow += 16; + if (d & 0xff00ff00U) + pow += 8; + if (d & 0xf0f0f0f0U) + pow += 4; + if (d & 0xccccccccU) + pow += 2; + if (d & 0xaaaaaaaaU) + pow += 1; +#elif defined(MP_USE_LONG_LONG_DIGIT) + if (d & 0xffffffff00000000ULL) + pow += 32; + if (d & 0xffff0000ffff0000ULL) + pow += 16; + if (d & 0xff00ff00ff00ff00ULL) + pow += 8; + if (d & 0xf0f0f0f0f0f0f0f0ULL) + pow += 4; + if (d & 0xccccccccccccccccULL) + pow += 2; + if (d & 0xaaaaaaaaaaaaaaaaULL) + pow += 1; +#elif defined(MP_USE_LONG_DIGIT) + if (d & 0xffffffff00000000UL) + pow += 32; + if (d & 0xffff0000ffff0000UL) + pow += 16; + if (d & 0xff00ff00ff00ff00UL) + pow += 8; + if (d & 0xf0f0f0f0f0f0f0f0UL) + pow += 4; + if (d & 0xccccccccccccccccUL) + pow += 2; + if (d & 0xaaaaaaaaaaaaaaaaUL) + pow += 1; +#else +#error "unknown type for mp_digit" +#endif + return pow; + } + return -1; + +} /* end s_mp_ispow2d() */ + +/* }}} */ + +/* }}} */ + +/* {{{ Primitive I/O helpers */ + +/* {{{ s_mp_tovalue(ch, r) */ + +/* + Convert the given character to its digit value, in the given radix. + If the given character is not understood in the given radix, -1 is + returned. Otherwise the digit's numeric value is returned. + + The results will be odd if you use a radix < 2 or > 62, you are + expected to know what you're up to. + */ +int s_mp_tovalue(char ch, int r) +{ + int val, xch; + + if(r > 36) + xch = ch; + else + xch = toupper(ch); + + if(isdigit(xch)) + val = xch - '0'; + else if(isupper(xch)) + val = xch - 'A' + 10; + else if(islower(xch)) + val = xch - 'a' + 36; + else if(xch == '+') + val = 62; + else if(xch == '/') + val = 63; + else + return -1; + + if(val < 0 || val >= r) + return -1; + + return val; + +} /* end s_mp_tovalue() */ + +/* }}} */ + +/* {{{ s_mp_todigit(val, r, low) */ + +/* + Convert val to a radix-r digit, if possible. If val is out of range + for r, returns zero. Otherwise, returns an ASCII character denoting + the value in the given radix. + + The results may be odd if you use a radix < 2 or > 64, you are + expected to know what you're doing. + */ + +char s_mp_todigit(mp_digit val, int r, int low) +{ + char ch; + + if(val >= r) + return 0; + + ch = s_dmap_1[val]; + + if(r <= 36 && low) + ch = tolower(ch); + + return ch; + +} /* end s_mp_todigit() */ + +/* }}} */ + +/* {{{ s_mp_outlen(bits, radix) */ + +/* + Return an estimate for how long a string is needed to hold a radix + r representation of a number with 'bits' significant bits, plus an + extra for a zero terminator (assuming C style strings here) + */ +int s_mp_outlen(int bits, int r) +{ + return (int)((double)bits * LOG_V_2(r) + 1.5) + 1; + +} /* end s_mp_outlen() */ + +/* }}} */ + +/* }}} */ + +/* {{{ mp_read_unsigned_octets(mp, str, len) */ +/* mp_read_unsigned_octets(mp, str, len) + Read in a raw value (base 256) into the given mp_int + No sign bit, number is positive. Leading zeros ignored. + */ + +mp_err +mp_read_unsigned_octets(mp_int *mp, const unsigned char *str, mp_size len) +{ + int count; + mp_err res; + mp_digit d; + + ARGCHK(mp != NULL && str != NULL && len > 0, MP_BADARG); + + mp_zero(mp); + + count = len % sizeof(mp_digit); + if (count) { + for (d = 0; count-- > 0; --len) { + d = (d << 8) | *str++; + } + MP_DIGIT(mp, 0) = d; + } + + /* Read the rest of the digits */ + for(; len > 0; len -= sizeof(mp_digit)) { + for (d = 0, count = sizeof(mp_digit); count > 0; --count) { + d = (d << 8) | *str++; + } + if (MP_EQ == mp_cmp_z(mp)) { + if (!d) + continue; + } else { + if((res = s_mp_lshd(mp, 1)) != MP_OKAY) + return res; + } + MP_DIGIT(mp, 0) = d; + } + return MP_OKAY; +} /* end mp_read_unsigned_octets() */ +/* }}} */ + +/* {{{ mp_unsigned_octet_size(mp) */ +int +mp_unsigned_octet_size(const mp_int *mp) +{ + int bytes; + int ix; + mp_digit d = 0; + + ARGCHK(mp != NULL, MP_BADARG); + ARGCHK(MP_ZPOS == SIGN(mp), MP_BADARG); + + bytes = (USED(mp) * sizeof(mp_digit)); + + /* subtract leading zeros. */ + /* Iterate over each digit... */ + for(ix = USED(mp) - 1; ix >= 0; ix--) { + d = DIGIT(mp, ix); + if (d) + break; + bytes -= sizeof(d); + } + if (!bytes) + return 1; + + /* Have MSD, check digit bytes, high order first */ + for(ix = sizeof(mp_digit) - 1; ix >= 0; ix--) { + unsigned char x = (unsigned char)(d >> (ix * CHAR_BIT)); + if (x) + break; + --bytes; + } + return bytes; +} /* end mp_unsigned_octet_size() */ +/* }}} */ + +/* {{{ mp_to_unsigned_octets(mp, str) */ +/* output a buffer of big endian octets no longer than specified. */ +mp_err +mp_to_unsigned_octets(const mp_int *mp, unsigned char *str, mp_size maxlen) +{ + int ix, pos = 0; + int bytes; + + ARGCHK(mp != NULL && str != NULL && !SIGN(mp), MP_BADARG); + + bytes = mp_unsigned_octet_size(mp); + ARGCHK(bytes <= maxlen, MP_BADARG); + + /* Iterate over each digit... */ + for(ix = USED(mp) - 1; ix >= 0; ix--) { + mp_digit d = DIGIT(mp, ix); + int jx; + + /* Unpack digit bytes, high order first */ + for(jx = sizeof(mp_digit) - 1; jx >= 0; jx--) { + unsigned char x = (unsigned char)(d >> (jx * CHAR_BIT)); + if (!pos && !x) /* suppress leading zeros */ + continue; + str[pos++] = x; + } + } + if (!pos) + str[pos++] = 0; + return pos; +} /* end mp_to_unsigned_octets() */ +/* }}} */ + +/* {{{ mp_to_signed_octets(mp, str) */ +/* output a buffer of big endian octets no longer than specified. */ +mp_err +mp_to_signed_octets(const mp_int *mp, unsigned char *str, mp_size maxlen) +{ + int ix, pos = 0; + int bytes; + + ARGCHK(mp != NULL && str != NULL && !SIGN(mp), MP_BADARG); + + bytes = mp_unsigned_octet_size(mp); + ARGCHK(bytes <= maxlen, MP_BADARG); + + /* Iterate over each digit... */ + for(ix = USED(mp) - 1; ix >= 0; ix--) { + mp_digit d = DIGIT(mp, ix); + int jx; + + /* Unpack digit bytes, high order first */ + for(jx = sizeof(mp_digit) - 1; jx >= 0; jx--) { + unsigned char x = (unsigned char)(d >> (jx * CHAR_BIT)); + if (!pos) { + if (!x) /* suppress leading zeros */ + continue; + if (x & 0x80) { /* add one leading zero to make output positive. */ + ARGCHK(bytes + 1 <= maxlen, MP_BADARG); + if (bytes + 1 > maxlen) + return MP_BADARG; + str[pos++] = 0; + } + } + str[pos++] = x; + } + } + if (!pos) + str[pos++] = 0; + return pos; +} /* end mp_to_signed_octets() */ +/* }}} */ + +/* {{{ mp_to_fixlen_octets(mp, str) */ +/* output a buffer of big endian octets exactly as long as requested. */ +mp_err +mp_to_fixlen_octets(const mp_int *mp, unsigned char *str, mp_size length) +{ + int ix, pos = 0; + int bytes; + + ARGCHK(mp != NULL && str != NULL && !SIGN(mp), MP_BADARG); + + bytes = mp_unsigned_octet_size(mp); + ARGCHK(bytes <= length, MP_BADARG); + + /* place any needed leading zeros */ + for (;length > bytes; --length) { + *str++ = 0; + } + + /* Iterate over each digit... */ + for(ix = USED(mp) - 1; ix >= 0; ix--) { + mp_digit d = DIGIT(mp, ix); + int jx; + + /* Unpack digit bytes, high order first */ + for(jx = sizeof(mp_digit) - 1; jx >= 0; jx--) { + unsigned char x = (unsigned char)(d >> (jx * CHAR_BIT)); + if (!pos && !x) /* suppress leading zeros */ + continue; + str[pos++] = x; + } + } + if (!pos) + str[pos++] = 0; + return MP_OKAY; +} /* end mp_to_fixlen_octets() */ +/* }}} */ + + +/*------------------------------------------------------------------------*/ +/* HERE THERE BE DRAGONS */ diff --git a/src/share/native/sun/security/ec/impl/mpi.h b/src/share/native/sun/security/ec/impl/mpi.h new file mode 100644 index 000000000..5f70b7632 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpi.h @@ -0,0 +1,409 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * + * Arbitrary precision integer arithmetic library + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Netscape Communications Corporation + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MPI_H +#define _MPI_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mpi.h,v 1.22 2004/04/27 23:04:36 gerv%gerv.net Exp $ */ + +#include "mpi-config.h" + +#ifndef _WIN32 +#include +#endif /* _WIN32 */ + +#ifdef _KERNEL +#include +#include +#define assert ASSERT +#define labs(a) (a >= 0 ? a : -a) +#define UCHAR_MAX 255 +#define memset(s, c, n) bzero(s, n) +#define memcpy(a,b,c) bcopy((caddr_t)b, (caddr_t)a, c) +/* + * Generic #define's to cover missing things in the kernel + */ +#ifndef isdigit +#define isdigit(x) ((x) >= '0' && (x) <= '9') +#endif +#ifndef isupper +#define isupper(x) (((unsigned)(x) >= 'A') && ((unsigned)(x) <= 'Z')) +#endif +#ifndef islower +#define islower(x) (((unsigned)(x) >= 'a') && ((unsigned)(x) <= 'z')) +#endif +#ifndef isalpha +#define isalpha(x) (isupper(x) || islower(x)) +#endif +#ifndef toupper +#define toupper(x) (islower(x) ? (x) - 'a' + 'A' : (x)) +#endif +#ifndef tolower +#define tolower(x) (isupper(x) ? (x) + 'a' - 'A' : (x)) +#endif +#ifndef isspace +#define isspace(x) (((x) == ' ') || ((x) == '\r') || ((x) == '\n') || \ + ((x) == '\t') || ((x) == '\b')) +#endif +#endif /* _KERNEL */ + +#if MP_DEBUG +#undef MP_IOFUNC +#define MP_IOFUNC 1 +#endif + +#if MP_IOFUNC +#include +#include +#endif + +#ifndef _KERNEL +#include +#endif + +#if defined(BSDI) +#undef ULLONG_MAX +#endif + +#if defined( macintosh ) +#include +#elif defined( _WIN32_WCE) +/* #include What do we need here ?? */ +#else +#include +#endif + +#define MP_NEG 1 +#define MP_ZPOS 0 + +#define MP_OKAY 0 /* no error, all is well */ +#define MP_YES 0 /* yes (boolean result) */ +#define MP_NO -1 /* no (boolean result) */ +#define MP_MEM -2 /* out of memory */ +#define MP_RANGE -3 /* argument out of range */ +#define MP_BADARG -4 /* invalid parameter */ +#define MP_UNDEF -5 /* answer is undefined */ +#define MP_LAST_CODE MP_UNDEF + +typedef unsigned int mp_sign; +typedef unsigned int mp_size; +typedef int mp_err; +typedef int mp_flag; + +#define MP_32BIT_MAX 4294967295U + +#if !defined(ULONG_MAX) +#error "ULONG_MAX not defined" +#elif !defined(UINT_MAX) +#error "UINT_MAX not defined" +#elif !defined(USHRT_MAX) +#error "USHRT_MAX not defined" +#endif + +#if defined(ULONG_LONG_MAX) /* GCC, HPUX */ +#define MP_ULONG_LONG_MAX ULONG_LONG_MAX +#elif defined(ULLONG_MAX) /* Solaris */ +#define MP_ULONG_LONG_MAX ULLONG_MAX +/* MP_ULONG_LONG_MAX was defined to be ULLONG_MAX */ +#elif defined(ULONGLONG_MAX) /* IRIX, AIX */ +#define MP_ULONG_LONG_MAX ULONGLONG_MAX +#endif + +/* We only use unsigned long for mp_digit iff long is more than 32 bits. */ +#if !defined(MP_USE_UINT_DIGIT) && ULONG_MAX > MP_32BIT_MAX +typedef unsigned long mp_digit; +#define MP_DIGIT_MAX ULONG_MAX +#define MP_DIGIT_FMT "%016lX" /* printf() format for 1 digit */ +#define MP_HALF_DIGIT_MAX UINT_MAX +#undef MP_NO_MP_WORD +#define MP_NO_MP_WORD 1 +#undef MP_USE_LONG_DIGIT +#define MP_USE_LONG_DIGIT 1 +#undef MP_USE_LONG_LONG_DIGIT + +#elif !defined(MP_USE_UINT_DIGIT) && defined(MP_ULONG_LONG_MAX) +typedef unsigned long long mp_digit; +#define MP_DIGIT_MAX MP_ULONG_LONG_MAX +#define MP_DIGIT_FMT "%016llX" /* printf() format for 1 digit */ +#define MP_HALF_DIGIT_MAX UINT_MAX +#undef MP_NO_MP_WORD +#define MP_NO_MP_WORD 1 +#undef MP_USE_LONG_LONG_DIGIT +#define MP_USE_LONG_LONG_DIGIT 1 +#undef MP_USE_LONG_DIGIT + +#else +typedef unsigned int mp_digit; +#define MP_DIGIT_MAX UINT_MAX +#define MP_DIGIT_FMT "%08X" /* printf() format for 1 digit */ +#define MP_HALF_DIGIT_MAX USHRT_MAX +#undef MP_USE_UINT_DIGIT +#define MP_USE_UINT_DIGIT 1 +#undef MP_USE_LONG_LONG_DIGIT +#undef MP_USE_LONG_DIGIT +#endif + +#if !defined(MP_NO_MP_WORD) +#if defined(MP_USE_UINT_DIGIT) && \ + (defined(MP_ULONG_LONG_MAX) || (ULONG_MAX > UINT_MAX)) + +#if (ULONG_MAX > UINT_MAX) +typedef unsigned long mp_word; +typedef long mp_sword; +#define MP_WORD_MAX ULONG_MAX + +#else +typedef unsigned long long mp_word; +typedef long long mp_sword; +#define MP_WORD_MAX MP_ULONG_LONG_MAX +#endif + +#else +#define MP_NO_MP_WORD 1 +#endif +#endif /* !defined(MP_NO_MP_WORD) */ + +#if !defined(MP_WORD_MAX) && defined(MP_DEFINE_SMALL_WORD) +typedef unsigned int mp_word; +typedef int mp_sword; +#define MP_WORD_MAX UINT_MAX +#endif + +#ifndef CHAR_BIT +#define CHAR_BIT 8 +#endif + +#define MP_DIGIT_BIT (CHAR_BIT*sizeof(mp_digit)) +#define MP_WORD_BIT (CHAR_BIT*sizeof(mp_word)) +#define MP_RADIX (1+(mp_word)MP_DIGIT_MAX) + +#define MP_HALF_DIGIT_BIT (MP_DIGIT_BIT/2) +#define MP_HALF_RADIX (1+(mp_digit)MP_HALF_DIGIT_MAX) +/* MP_HALF_RADIX really ought to be called MP_SQRT_RADIX, but it's named +** MP_HALF_RADIX because it's the radix for MP_HALF_DIGITs, and it's +** consistent with the other _HALF_ names. +*/ + + +/* Macros for accessing the mp_int internals */ +#define MP_FLAG(MP) ((MP)->flag) +#define MP_SIGN(MP) ((MP)->sign) +#define MP_USED(MP) ((MP)->used) +#define MP_ALLOC(MP) ((MP)->alloc) +#define MP_DIGITS(MP) ((MP)->dp) +#define MP_DIGIT(MP,N) (MP)->dp[(N)] + +/* This defines the maximum I/O base (minimum is 2) */ +#define MP_MAX_RADIX 64 + +typedef struct { + mp_sign flag; /* KM_SLEEP/KM_NOSLEEP */ + mp_sign sign; /* sign of this quantity */ + mp_size alloc; /* how many digits allocated */ + mp_size used; /* how many digits used */ + mp_digit *dp; /* the digits themselves */ +} mp_int; + +/* Default precision */ +mp_size mp_get_prec(void); +void mp_set_prec(mp_size prec); + +/* Memory management */ +mp_err mp_init(mp_int *mp, int kmflag); +mp_err mp_init_size(mp_int *mp, mp_size prec, int kmflag); +mp_err mp_init_copy(mp_int *mp, const mp_int *from); +mp_err mp_copy(const mp_int *from, mp_int *to); +void mp_exch(mp_int *mp1, mp_int *mp2); +void mp_clear(mp_int *mp); +void mp_zero(mp_int *mp); +void mp_set(mp_int *mp, mp_digit d); +mp_err mp_set_int(mp_int *mp, long z); +#define mp_set_long(mp,z) mp_set_int(mp,z) +mp_err mp_set_ulong(mp_int *mp, unsigned long z); + +/* Single digit arithmetic */ +mp_err mp_add_d(const mp_int *a, mp_digit d, mp_int *b); +mp_err mp_sub_d(const mp_int *a, mp_digit d, mp_int *b); +mp_err mp_mul_d(const mp_int *a, mp_digit d, mp_int *b); +mp_err mp_mul_2(const mp_int *a, mp_int *c); +mp_err mp_div_d(const mp_int *a, mp_digit d, mp_int *q, mp_digit *r); +mp_err mp_div_2(const mp_int *a, mp_int *c); +mp_err mp_expt_d(const mp_int *a, mp_digit d, mp_int *c); + +/* Sign manipulations */ +mp_err mp_abs(const mp_int *a, mp_int *b); +mp_err mp_neg(const mp_int *a, mp_int *b); + +/* Full arithmetic */ +mp_err mp_add(const mp_int *a, const mp_int *b, mp_int *c); +mp_err mp_sub(const mp_int *a, const mp_int *b, mp_int *c); +mp_err mp_mul(const mp_int *a, const mp_int *b, mp_int *c); +#if MP_SQUARE +mp_err mp_sqr(const mp_int *a, mp_int *b); +#else +#define mp_sqr(a, b) mp_mul(a, a, b) +#endif +mp_err mp_div(const mp_int *a, const mp_int *b, mp_int *q, mp_int *r); +mp_err mp_div_2d(const mp_int *a, mp_digit d, mp_int *q, mp_int *r); +mp_err mp_expt(mp_int *a, mp_int *b, mp_int *c); +mp_err mp_2expt(mp_int *a, mp_digit k); +mp_err mp_sqrt(const mp_int *a, mp_int *b); + +/* Modular arithmetic */ +#if MP_MODARITH +mp_err mp_mod(const mp_int *a, const mp_int *m, mp_int *c); +mp_err mp_mod_d(const mp_int *a, mp_digit d, mp_digit *c); +mp_err mp_addmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c); +mp_err mp_submod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c); +mp_err mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c); +#if MP_SQUARE +mp_err mp_sqrmod(const mp_int *a, const mp_int *m, mp_int *c); +#else +#define mp_sqrmod(a, m, c) mp_mulmod(a, a, m, c) +#endif +mp_err mp_exptmod(const mp_int *a, const mp_int *b, const mp_int *m, mp_int *c); +mp_err mp_exptmod_d(const mp_int *a, mp_digit d, const mp_int *m, mp_int *c); +#endif /* MP_MODARITH */ + +/* Comparisons */ +int mp_cmp_z(const mp_int *a); +int mp_cmp_d(const mp_int *a, mp_digit d); +int mp_cmp(const mp_int *a, const mp_int *b); +int mp_cmp_mag(mp_int *a, mp_int *b); +int mp_cmp_int(const mp_int *a, long z, int kmflag); +int mp_isodd(const mp_int *a); +int mp_iseven(const mp_int *a); + +/* Number theoretic */ +#if MP_NUMTH +mp_err mp_gcd(mp_int *a, mp_int *b, mp_int *c); +mp_err mp_lcm(mp_int *a, mp_int *b, mp_int *c); +mp_err mp_xgcd(const mp_int *a, const mp_int *b, mp_int *g, mp_int *x, mp_int *y); +mp_err mp_invmod(const mp_int *a, const mp_int *m, mp_int *c); +mp_err mp_invmod_xgcd(const mp_int *a, const mp_int *m, mp_int *c); +#endif /* end MP_NUMTH */ + +/* Input and output */ +#if MP_IOFUNC +void mp_print(mp_int *mp, FILE *ofp); +#endif /* end MP_IOFUNC */ + +/* Base conversion */ +mp_err mp_read_raw(mp_int *mp, char *str, int len); +int mp_raw_size(mp_int *mp); +mp_err mp_toraw(mp_int *mp, char *str); +mp_err mp_read_radix(mp_int *mp, const char *str, int radix); +mp_err mp_read_variable_radix(mp_int *a, const char * str, int default_radix); +int mp_radix_size(mp_int *mp, int radix); +mp_err mp_toradix(mp_int *mp, char *str, int radix); +int mp_tovalue(char ch, int r); + +#define mp_tobinary(M, S) mp_toradix((M), (S), 2) +#define mp_tooctal(M, S) mp_toradix((M), (S), 8) +#define mp_todecimal(M, S) mp_toradix((M), (S), 10) +#define mp_tohex(M, S) mp_toradix((M), (S), 16) + +/* Error strings */ +const char *mp_strerror(mp_err ec); + +/* Octet string conversion functions */ +mp_err mp_read_unsigned_octets(mp_int *mp, const unsigned char *str, mp_size len); +int mp_unsigned_octet_size(const mp_int *mp); +mp_err mp_to_unsigned_octets(const mp_int *mp, unsigned char *str, mp_size maxlen); +mp_err mp_to_signed_octets(const mp_int *mp, unsigned char *str, mp_size maxlen); +mp_err mp_to_fixlen_octets(const mp_int *mp, unsigned char *str, mp_size len); + +/* Miscellaneous */ +mp_size mp_trailing_zeros(const mp_int *mp); + +#define MP_CHECKOK(x) if (MP_OKAY > (res = (x))) goto CLEANUP +#define MP_CHECKERR(x) if (MP_OKAY > (res = (x))) goto CLEANUP + +#if defined(MP_API_COMPATIBLE) +#define NEG MP_NEG +#define ZPOS MP_ZPOS +#define DIGIT_MAX MP_DIGIT_MAX +#define DIGIT_BIT MP_DIGIT_BIT +#define DIGIT_FMT MP_DIGIT_FMT +#define RADIX MP_RADIX +#define MAX_RADIX MP_MAX_RADIX +#define FLAG(MP) MP_FLAG(MP) +#define SIGN(MP) MP_SIGN(MP) +#define USED(MP) MP_USED(MP) +#define ALLOC(MP) MP_ALLOC(MP) +#define DIGITS(MP) MP_DIGITS(MP) +#define DIGIT(MP,N) MP_DIGIT(MP,N) + +#if MP_ARGCHK == 1 +#define ARGCHK(X,Y) {if(!(X)){return (Y);}} +#elif MP_ARGCHK == 2 +#ifdef _KERNEL +#define ARGCHK(X,Y) ASSERT(X) +#else +#include +#define ARGCHK(X,Y) assert(X) +#endif +#else +#define ARGCHK(X,Y) /* */ +#endif +#endif /* defined MP_API_COMPATIBLE */ + +#endif /* _MPI_H */ diff --git a/src/share/native/sun/security/ec/impl/mplogic.c b/src/share/native/sun/security/ec/impl/mplogic.c new file mode 100644 index 000000000..6a5f00a1c --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mplogic.c @@ -0,0 +1,242 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * + * Bitwise logical operations on MPI values + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mplogic.c,v 1.15 2004/04/27 23:04:36 gerv%gerv.net Exp $ */ + +#include "mpi-priv.h" +#include "mplogic.h" + +/* {{{ Lookup table for population count */ + +static unsigned char bitc[] = { + 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 +}; + +/* }}} */ + +/* + mpl_rsh(a, b, d) - b = a >> d + mpl_lsh(a, b, d) - b = a << d + */ + +/* {{{ mpl_rsh(a, b, d) */ + +mp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_copy(a, b)) != MP_OKAY) + return res; + + s_mp_div_2d(b, d); + + return MP_OKAY; + +} /* end mpl_rsh() */ + +/* }}} */ + +/* {{{ mpl_lsh(a, b, d) */ + +mp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d) +{ + mp_err res; + + ARGCHK(a != NULL && b != NULL, MP_BADARG); + + if((res = mp_copy(a, b)) != MP_OKAY) + return res; + + return s_mp_mul_2d(b, d); + +} /* end mpl_lsh() */ + +/* }}} */ + +/*------------------------------------------------------------------------*/ +/* + mpl_set_bit + + Returns MP_OKAY or some error code. + Grows a if needed to set a bit to 1. + */ +mp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value) +{ + mp_size ix; + mp_err rv; + mp_digit mask; + + ARGCHK(a != NULL, MP_BADARG); + + ix = bitNum / MP_DIGIT_BIT; + if (ix + 1 > MP_USED(a)) { + rv = s_mp_pad(a, ix + 1); + if (rv != MP_OKAY) + return rv; + } + + bitNum = bitNum % MP_DIGIT_BIT; + mask = (mp_digit)1 << bitNum; + if (value) + MP_DIGIT(a,ix) |= mask; + else + MP_DIGIT(a,ix) &= ~mask; + s_mp_clamp(a); + return MP_OKAY; +} + +/* + mpl_get_bit + + returns 0 or 1 or some (negative) error code. + */ +mp_err mpl_get_bit(const mp_int *a, mp_size bitNum) +{ + mp_size bit, ix; + mp_err rv; + + ARGCHK(a != NULL, MP_BADARG); + + ix = bitNum / MP_DIGIT_BIT; + ARGCHK(ix <= MP_USED(a) - 1, MP_RANGE); + + bit = bitNum % MP_DIGIT_BIT; + rv = (mp_err)(MP_DIGIT(a, ix) >> bit) & 1; + return rv; +} + +/* + mpl_get_bits + - Extracts numBits bits from a, where the least significant extracted bit + is bit lsbNum. Returns a negative value if error occurs. + - Because sign bit is used to indicate error, maximum number of bits to + be returned is the lesser of (a) the number of bits in an mp_digit, or + (b) one less than the number of bits in an mp_err. + - lsbNum + numbits can be greater than the number of significant bits in + integer a, as long as bit lsbNum is in the high order digit of a. + */ +mp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits) +{ + mp_size rshift = (lsbNum % MP_DIGIT_BIT); + mp_size lsWndx = (lsbNum / MP_DIGIT_BIT); + mp_digit * digit = MP_DIGITS(a) + lsWndx; + mp_digit mask = ((1 << numBits) - 1); + + ARGCHK(numBits < CHAR_BIT * sizeof mask, MP_BADARG); + ARGCHK(MP_HOWMANY(lsbNum, MP_DIGIT_BIT) <= MP_USED(a), MP_RANGE); + + if ((numBits + lsbNum % MP_DIGIT_BIT <= MP_DIGIT_BIT) || + (lsWndx + 1 >= MP_USED(a))) { + mask &= (digit[0] >> rshift); + } else { + mask &= ((digit[0] >> rshift) | (digit[1] << (MP_DIGIT_BIT - rshift))); + } + return (mp_err)mask; +} + +/* + mpl_significant_bits + returns number of significnant bits in abs(a). + returns 1 if value is zero. + */ +mp_err mpl_significant_bits(const mp_int *a) +{ + mp_err bits = 0; + int ix; + + ARGCHK(a != NULL, MP_BADARG); + + ix = MP_USED(a); + for (ix = MP_USED(a); ix > 0; ) { + mp_digit d; + d = MP_DIGIT(a, --ix); + if (d) { + while (d) { + ++bits; + d >>= 1; + } + break; + } + } + bits += ix * MP_DIGIT_BIT; + if (!bits) + bits = 1; + return bits; +} + +/*------------------------------------------------------------------------*/ +/* HERE THERE BE DRAGONS */ diff --git a/src/share/native/sun/security/ec/impl/mplogic.h b/src/share/native/sun/security/ec/impl/mplogic.h new file mode 100644 index 000000000..97ddb49c7 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mplogic.h @@ -0,0 +1,105 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * + * Bitwise logical operations on MPI values + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MPLOGIC_H +#define _MPLOGIC_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mplogic.h,v 1.7 2004/04/27 23:04:36 gerv%gerv.net Exp $ */ + +#include "mpi.h" + +/* + The logical operations treat an mp_int as if it were a bit vector, + without regard to its sign (an mp_int is represented in a signed + magnitude format). Values are treated as if they had an infinite + string of zeros left of the most-significant bit. + */ + +/* Parity results */ + +#define MP_EVEN MP_YES +#define MP_ODD MP_NO + +/* Bitwise functions */ + +mp_err mpl_not(mp_int *a, mp_int *b); /* one's complement */ +mp_err mpl_and(mp_int *a, mp_int *b, mp_int *c); /* bitwise AND */ +mp_err mpl_or(mp_int *a, mp_int *b, mp_int *c); /* bitwise OR */ +mp_err mpl_xor(mp_int *a, mp_int *b, mp_int *c); /* bitwise XOR */ + +/* Shift functions */ + +mp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d); /* right shift */ +mp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d); /* left shift */ + +/* Bit count and parity */ + +mp_err mpl_num_set(mp_int *a, int *num); /* count set bits */ +mp_err mpl_num_clear(mp_int *a, int *num); /* count clear bits */ +mp_err mpl_parity(mp_int *a); /* determine parity */ + +/* Get & Set the value of a bit */ + +mp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value); +mp_err mpl_get_bit(const mp_int *a, mp_size bitNum); +mp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits); +mp_err mpl_significant_bits(const mp_int *a); + +#endif /* _MPLOGIC_H */ diff --git a/src/share/native/sun/security/ec/impl/mpmontg.c b/src/share/native/sun/security/ec/impl/mpmontg.c new file mode 100644 index 000000000..df17f4273 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpmontg.c @@ -0,0 +1,199 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Sheueling Chang Shantz , + * Stephen Fung , and + * Douglas Stebila of Sun Laboratories. + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* $Id: mpmontg.c,v 1.20 2006/08/29 02:41:38 nelson%bolyard.com Exp $ */ + +/* This file implements moduluar exponentiation using Montgomery's + * method for modular reduction. This file implements the method + * described as "Improvement 1" in the paper "A Cryptogrpahic Library for + * the Motorola DSP56000" by Stephen R. Dusse' and Burton S. Kaliski Jr. + * published in "Advances in Cryptology: Proceedings of EUROCRYPT '90" + * "Lecture Notes in Computer Science" volume 473, 1991, pg 230-244, + * published by Springer Verlag. + */ + +#define MP_USING_CACHE_SAFE_MOD_EXP 1 +#ifndef _KERNEL +#include +#include /* ptrdiff_t */ +#endif +#include "mpi-priv.h" +#include "mplogic.h" +#include "mpprime.h" +#ifdef MP_USING_MONT_MULF +#include "montmulf.h" +#endif + +/* if MP_CHAR_STORE_SLOW is defined, we */ +/* need to know endianness of this platform. */ +#ifdef MP_CHAR_STORE_SLOW +#if !defined(MP_IS_BIG_ENDIAN) && !defined(MP_IS_LITTLE_ENDIAN) +#error "You must define MP_IS_BIG_ENDIAN or MP_IS_LITTLE_ENDIAN\n" \ + " if you define MP_CHAR_STORE_SLOW." +#endif +#endif + +#ifndef STATIC +#define STATIC +#endif + +#define MAX_ODD_INTS 32 /* 2 ** (WINDOW_BITS - 1) */ + +#ifndef _KERNEL +#if defined(_WIN32_WCE) +#define ABORT res = MP_UNDEF; goto CLEANUP +#else +#define ABORT abort() +#endif +#else +#define ABORT res = MP_UNDEF; goto CLEANUP +#endif /* _KERNEL */ + +/* computes T = REDC(T), 2^b == R */ +mp_err s_mp_redc(mp_int *T, mp_mont_modulus *mmm) +{ + mp_err res; + mp_size i; + + i = MP_USED(T) + MP_USED(&mmm->N) + 2; + MP_CHECKOK( s_mp_pad(T, i) ); + for (i = 0; i < MP_USED(&mmm->N); ++i ) { + mp_digit m_i = MP_DIGIT(T, i) * mmm->n0prime; + /* T += N * m_i * (MP_RADIX ** i); */ + MP_CHECKOK( s_mp_mul_d_add_offset(&mmm->N, m_i, T, i) ); + } + s_mp_clamp(T); + + /* T /= R */ + s_mp_div_2d(T, mmm->b); + + if ((res = s_mp_cmp(T, &mmm->N)) >= 0) { + /* T = T - N */ + MP_CHECKOK( s_mp_sub(T, &mmm->N) ); +#ifdef DEBUG + if ((res = mp_cmp(T, &mmm->N)) >= 0) { + res = MP_UNDEF; + goto CLEANUP; + } +#endif + } + res = MP_OKAY; +CLEANUP: + return res; +} + +#if !defined(MP_ASSEMBLY_MUL_MONT) && !defined(MP_MONT_USE_MP_MUL) +mp_err s_mp_mul_mont(const mp_int *a, const mp_int *b, mp_int *c, + mp_mont_modulus *mmm) +{ + mp_digit *pb; + mp_digit m_i; + mp_err res; + mp_size ib; + mp_size useda, usedb; + + ARGCHK(a != NULL && b != NULL && c != NULL, MP_BADARG); + + if (MP_USED(a) < MP_USED(b)) { + const mp_int *xch = b; /* switch a and b, to do fewer outer loops */ + b = a; + a = xch; + } + + MP_USED(c) = 1; MP_DIGIT(c, 0) = 0; + ib = MP_USED(a) + MP_MAX(MP_USED(b), MP_USED(&mmm->N)) + 2; + if((res = s_mp_pad(c, ib)) != MP_OKAY) + goto CLEANUP; + + useda = MP_USED(a); + pb = MP_DIGITS(b); + s_mpv_mul_d(MP_DIGITS(a), useda, *pb++, MP_DIGITS(c)); + s_mp_setz(MP_DIGITS(c) + useda + 1, ib - (useda + 1)); + m_i = MP_DIGIT(c, 0) * mmm->n0prime; + s_mp_mul_d_add_offset(&mmm->N, m_i, c, 0); + + /* Outer loop: Digits of b */ + usedb = MP_USED(b); + for (ib = 1; ib < usedb; ib++) { + mp_digit b_i = *pb++; + + /* Inner product: Digits of a */ + if (b_i) + s_mpv_mul_d_add_prop(MP_DIGITS(a), useda, b_i, MP_DIGITS(c) + ib); + m_i = MP_DIGIT(c, ib) * mmm->n0prime; + s_mp_mul_d_add_offset(&mmm->N, m_i, c, ib); + } + if (usedb < MP_USED(&mmm->N)) { + for (usedb = MP_USED(&mmm->N); ib < usedb; ++ib ) { + m_i = MP_DIGIT(c, ib) * mmm->n0prime; + s_mp_mul_d_add_offset(&mmm->N, m_i, c, ib); + } + } + s_mp_clamp(c); + s_mp_div_2d(c, mmm->b); + if (s_mp_cmp(c, &mmm->N) >= 0) { + MP_CHECKOK( s_mp_sub(c, &mmm->N) ); + } + res = MP_OKAY; + +CLEANUP: + return res; +} +#endif diff --git a/src/share/native/sun/security/ec/impl/mpprime.h b/src/share/native/sun/security/ec/impl/mpprime.h new file mode 100644 index 000000000..78bcb1835 --- /dev/null +++ b/src/share/native/sun/security/ec/impl/mpprime.h @@ -0,0 +1,89 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * + * Utilities for finding and working with prime and pseudo-prime + * integers + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library. + * + * The Initial Developer of the Original Code is + * Michael J. Fromberger. + * Portions created by the Initial Developer are Copyright (C) 1997 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _MP_PRIME_H +#define _MP_PRIME_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include "mpi.h" + +extern const int prime_tab_size; /* number of primes available */ +extern const mp_digit prime_tab[]; + +/* Tests for divisibility */ +mp_err mpp_divis(mp_int *a, mp_int *b); +mp_err mpp_divis_d(mp_int *a, mp_digit d); + +/* Random selection */ +mp_err mpp_random(mp_int *a); +mp_err mpp_random_size(mp_int *a, mp_size prec); + +/* Pseudo-primality testing */ +mp_err mpp_divis_vector(mp_int *a, const mp_digit *vec, int size, int *which); +mp_err mpp_divis_primes(mp_int *a, mp_digit *np); +mp_err mpp_fermat(mp_int *a, mp_digit w); +mp_err mpp_fermat_list(mp_int *a, const mp_digit *primes, mp_size nPrimes); +mp_err mpp_pprime(mp_int *a, int nt); +mp_err mpp_sieve(mp_int *trial, const mp_digit *primes, mp_size nPrimes, + unsigned char *sieve, mp_size nSieve); +mp_err mpp_make_prime(mp_int *start, mp_size nBits, mp_size strong, + unsigned long * nTries); + +#endif /* _MP_PRIME_H */ diff --git a/src/share/native/sun/security/ec/impl/oid.c b/src/share/native/sun/security/ec/impl/oid.c new file mode 100644 index 000000000..f3ced99bc --- /dev/null +++ b/src/share/native/sun/security/ec/impl/oid.c @@ -0,0 +1,473 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include + +#ifndef _WIN32 +#ifndef __linux__ +#include +#endif /* __linux__ */ +#include +#endif /* _WIN32 */ + +#ifdef _KERNEL +#include +#else +#include +#endif +#include "ec.h" +#include "ecl-curve.h" +#include "ecc_impl.h" +#include "secoidt.h" + +#define CERTICOM_OID 0x2b, 0x81, 0x04 +#define SECG_OID CERTICOM_OID, 0x00 + +#define ANSI_X962_OID 0x2a, 0x86, 0x48, 0xce, 0x3d +#define ANSI_X962_CURVE_OID ANSI_X962_OID, 0x03 +#define ANSI_X962_GF2m_OID ANSI_X962_CURVE_OID, 0x00 +#define ANSI_X962_GFp_OID ANSI_X962_CURVE_OID, 0x01 + +#define CONST_OID static const unsigned char + +/* ANSI X9.62 prime curve OIDs */ +/* NOTE: prime192v1 is the same as secp192r1, prime256v1 is the + * same as secp256r1 + */ +CONST_OID ansiX962prime192v1[] = { ANSI_X962_GFp_OID, 0x01 }; +CONST_OID ansiX962prime192v2[] = { ANSI_X962_GFp_OID, 0x02 }; +CONST_OID ansiX962prime192v3[] = { ANSI_X962_GFp_OID, 0x03 }; +CONST_OID ansiX962prime239v1[] = { ANSI_X962_GFp_OID, 0x04 }; +CONST_OID ansiX962prime239v2[] = { ANSI_X962_GFp_OID, 0x05 }; +CONST_OID ansiX962prime239v3[] = { ANSI_X962_GFp_OID, 0x06 }; +CONST_OID ansiX962prime256v1[] = { ANSI_X962_GFp_OID, 0x07 }; + +/* SECG prime curve OIDs */ +CONST_OID secgECsecp112r1[] = { SECG_OID, 0x06 }; +CONST_OID secgECsecp112r2[] = { SECG_OID, 0x07 }; +CONST_OID secgECsecp128r1[] = { SECG_OID, 0x1c }; +CONST_OID secgECsecp128r2[] = { SECG_OID, 0x1d }; +CONST_OID secgECsecp160k1[] = { SECG_OID, 0x09 }; +CONST_OID secgECsecp160r1[] = { SECG_OID, 0x08 }; +CONST_OID secgECsecp160r2[] = { SECG_OID, 0x1e }; +CONST_OID secgECsecp192k1[] = { SECG_OID, 0x1f }; +CONST_OID secgECsecp224k1[] = { SECG_OID, 0x20 }; +CONST_OID secgECsecp224r1[] = { SECG_OID, 0x21 }; +CONST_OID secgECsecp256k1[] = { SECG_OID, 0x0a }; +CONST_OID secgECsecp384r1[] = { SECG_OID, 0x22 }; +CONST_OID secgECsecp521r1[] = { SECG_OID, 0x23 }; + +/* SECG characterisitic two curve OIDs */ +CONST_OID secgECsect113r1[] = {SECG_OID, 0x04 }; +CONST_OID secgECsect113r2[] = {SECG_OID, 0x05 }; +CONST_OID secgECsect131r1[] = {SECG_OID, 0x16 }; +CONST_OID secgECsect131r2[] = {SECG_OID, 0x17 }; +CONST_OID secgECsect163k1[] = {SECG_OID, 0x01 }; +CONST_OID secgECsect163r1[] = {SECG_OID, 0x02 }; +CONST_OID secgECsect163r2[] = {SECG_OID, 0x0f }; +CONST_OID secgECsect193r1[] = {SECG_OID, 0x18 }; +CONST_OID secgECsect193r2[] = {SECG_OID, 0x19 }; +CONST_OID secgECsect233k1[] = {SECG_OID, 0x1a }; +CONST_OID secgECsect233r1[] = {SECG_OID, 0x1b }; +CONST_OID secgECsect239k1[] = {SECG_OID, 0x03 }; +CONST_OID secgECsect283k1[] = {SECG_OID, 0x10 }; +CONST_OID secgECsect283r1[] = {SECG_OID, 0x11 }; +CONST_OID secgECsect409k1[] = {SECG_OID, 0x24 }; +CONST_OID secgECsect409r1[] = {SECG_OID, 0x25 }; +CONST_OID secgECsect571k1[] = {SECG_OID, 0x26 }; +CONST_OID secgECsect571r1[] = {SECG_OID, 0x27 }; + +/* ANSI X9.62 characteristic two curve OIDs */ +CONST_OID ansiX962c2pnb163v1[] = { ANSI_X962_GF2m_OID, 0x01 }; +CONST_OID ansiX962c2pnb163v2[] = { ANSI_X962_GF2m_OID, 0x02 }; +CONST_OID ansiX962c2pnb163v3[] = { ANSI_X962_GF2m_OID, 0x03 }; +CONST_OID ansiX962c2pnb176v1[] = { ANSI_X962_GF2m_OID, 0x04 }; +CONST_OID ansiX962c2tnb191v1[] = { ANSI_X962_GF2m_OID, 0x05 }; +CONST_OID ansiX962c2tnb191v2[] = { ANSI_X962_GF2m_OID, 0x06 }; +CONST_OID ansiX962c2tnb191v3[] = { ANSI_X962_GF2m_OID, 0x07 }; +CONST_OID ansiX962c2onb191v4[] = { ANSI_X962_GF2m_OID, 0x08 }; +CONST_OID ansiX962c2onb191v5[] = { ANSI_X962_GF2m_OID, 0x09 }; +CONST_OID ansiX962c2pnb208w1[] = { ANSI_X962_GF2m_OID, 0x0a }; +CONST_OID ansiX962c2tnb239v1[] = { ANSI_X962_GF2m_OID, 0x0b }; +CONST_OID ansiX962c2tnb239v2[] = { ANSI_X962_GF2m_OID, 0x0c }; +CONST_OID ansiX962c2tnb239v3[] = { ANSI_X962_GF2m_OID, 0x0d }; +CONST_OID ansiX962c2onb239v4[] = { ANSI_X962_GF2m_OID, 0x0e }; +CONST_OID ansiX962c2onb239v5[] = { ANSI_X962_GF2m_OID, 0x0f }; +CONST_OID ansiX962c2pnb272w1[] = { ANSI_X962_GF2m_OID, 0x10 }; +CONST_OID ansiX962c2pnb304w1[] = { ANSI_X962_GF2m_OID, 0x11 }; +CONST_OID ansiX962c2tnb359v1[] = { ANSI_X962_GF2m_OID, 0x12 }; +CONST_OID ansiX962c2pnb368w1[] = { ANSI_X962_GF2m_OID, 0x13 }; +CONST_OID ansiX962c2tnb431r1[] = { ANSI_X962_GF2m_OID, 0x14 }; + +#define OI(x) { siDEROID, (unsigned char *)x, sizeof x } +#ifndef SECOID_NO_STRINGS +#define OD(oid,tag,desc,mech,ext) { OI(oid), tag, desc, mech, ext } +#else +#define OD(oid,tag,desc,mech,ext) { OI(oid), tag, 0, mech, ext } +#endif + +#define CKM_INVALID_MECHANISM 0xffffffffUL + +/* XXX this is incorrect */ +#define INVALID_CERT_EXTENSION 1 + +#define CKM_ECDSA 0x00001041 +#define CKM_ECDSA_SHA1 0x00001042 +#define CKM_ECDH1_DERIVE 0x00001050 + +static SECOidData ANSI_prime_oids[] = { + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + + OD( ansiX962prime192v1, ECCurve_NIST_P192, + "ANSI X9.62 elliptic curve prime192v1 (aka secp192r1, NIST P-192)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime192v2, ECCurve_X9_62_PRIME_192V2, + "ANSI X9.62 elliptic curve prime192v2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime192v3, ECCurve_X9_62_PRIME_192V3, + "ANSI X9.62 elliptic curve prime192v3", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime239v1, ECCurve_X9_62_PRIME_239V1, + "ANSI X9.62 elliptic curve prime239v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime239v2, ECCurve_X9_62_PRIME_239V2, + "ANSI X9.62 elliptic curve prime239v2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime239v3, ECCurve_X9_62_PRIME_239V3, + "ANSI X9.62 elliptic curve prime239v3", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962prime256v1, ECCurve_NIST_P256, + "ANSI X9.62 elliptic curve prime256v1 (aka secp256r1, NIST P-256)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ) +}; + +static SECOidData SECG_oids[] = { + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + + OD( secgECsect163k1, ECCurve_NIST_K163, + "SECG elliptic curve sect163k1 (aka NIST K-163)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect163r1, ECCurve_SECG_CHAR2_163R1, + "SECG elliptic curve sect163r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect239k1, ECCurve_SECG_CHAR2_239K1, + "SECG elliptic curve sect239k1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect113r1, ECCurve_SECG_CHAR2_113R1, + "SECG elliptic curve sect113r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect113r2, ECCurve_SECG_CHAR2_113R2, + "SECG elliptic curve sect113r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp112r1, ECCurve_SECG_PRIME_112R1, + "SECG elliptic curve secp112r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp112r2, ECCurve_SECG_PRIME_112R2, + "SECG elliptic curve secp112r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp160r1, ECCurve_SECG_PRIME_160R1, + "SECG elliptic curve secp160r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp160k1, ECCurve_SECG_PRIME_160K1, + "SECG elliptic curve secp160k1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp256k1, ECCurve_SECG_PRIME_256K1, + "SECG elliptic curve secp256k1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + OD( secgECsect163r2, ECCurve_NIST_B163, + "SECG elliptic curve sect163r2 (aka NIST B-163)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect283k1, ECCurve_NIST_K283, + "SECG elliptic curve sect283k1 (aka NIST K-283)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect283r1, ECCurve_NIST_B283, + "SECG elliptic curve sect283r1 (aka NIST B-283)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + OD( secgECsect131r1, ECCurve_SECG_CHAR2_131R1, + "SECG elliptic curve sect131r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect131r2, ECCurve_SECG_CHAR2_131R2, + "SECG elliptic curve sect131r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect193r1, ECCurve_SECG_CHAR2_193R1, + "SECG elliptic curve sect193r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect193r2, ECCurve_SECG_CHAR2_193R2, + "SECG elliptic curve sect193r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect233k1, ECCurve_NIST_K233, + "SECG elliptic curve sect233k1 (aka NIST K-233)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect233r1, ECCurve_NIST_B233, + "SECG elliptic curve sect233r1 (aka NIST B-233)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp128r1, ECCurve_SECG_PRIME_128R1, + "SECG elliptic curve secp128r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp128r2, ECCurve_SECG_PRIME_128R2, + "SECG elliptic curve secp128r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp160r2, ECCurve_SECG_PRIME_160R2, + "SECG elliptic curve secp160r2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp192k1, ECCurve_SECG_PRIME_192K1, + "SECG elliptic curve secp192k1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp224k1, ECCurve_SECG_PRIME_224K1, + "SECG elliptic curve secp224k1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp224r1, ECCurve_NIST_P224, + "SECG elliptic curve secp224r1 (aka NIST P-224)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp384r1, ECCurve_NIST_P384, + "SECG elliptic curve secp384r1 (aka NIST P-384)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsecp521r1, ECCurve_NIST_P521, + "SECG elliptic curve secp521r1 (aka NIST P-521)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect409k1, ECCurve_NIST_K409, + "SECG elliptic curve sect409k1 (aka NIST K-409)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect409r1, ECCurve_NIST_B409, + "SECG elliptic curve sect409r1 (aka NIST B-409)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect571k1, ECCurve_NIST_K571, + "SECG elliptic curve sect571k1 (aka NIST K-571)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( secgECsect571r1, ECCurve_NIST_B571, + "SECG elliptic curve sect571r1 (aka NIST B-571)", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ) +}; + +static SECOidData ANSI_oids[] = { + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + + /* ANSI X9.62 named elliptic curves (characteristic two field) */ + OD( ansiX962c2pnb163v1, ECCurve_X9_62_CHAR2_PNB163V1, + "ANSI X9.62 elliptic curve c2pnb163v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2pnb163v2, ECCurve_X9_62_CHAR2_PNB163V2, + "ANSI X9.62 elliptic curve c2pnb163v2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2pnb163v3, ECCurve_X9_62_CHAR2_PNB163V3, + "ANSI X9.62 elliptic curve c2pnb163v3", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2pnb176v1, ECCurve_X9_62_CHAR2_PNB176V1, + "ANSI X9.62 elliptic curve c2pnb176v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb191v1, ECCurve_X9_62_CHAR2_TNB191V1, + "ANSI X9.62 elliptic curve c2tnb191v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb191v2, ECCurve_X9_62_CHAR2_TNB191V2, + "ANSI X9.62 elliptic curve c2tnb191v2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb191v3, ECCurve_X9_62_CHAR2_TNB191V3, + "ANSI X9.62 elliptic curve c2tnb191v3", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + OD( ansiX962c2pnb208w1, ECCurve_X9_62_CHAR2_PNB208W1, + "ANSI X9.62 elliptic curve c2pnb208w1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb239v1, ECCurve_X9_62_CHAR2_TNB239V1, + "ANSI X9.62 elliptic curve c2tnb239v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb239v2, ECCurve_X9_62_CHAR2_TNB239V2, + "ANSI X9.62 elliptic curve c2tnb239v2", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb239v3, ECCurve_X9_62_CHAR2_TNB239V3, + "ANSI X9.62 elliptic curve c2tnb239v3", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + { { siDEROID, NULL, 0 }, ECCurve_noName, + "Unknown OID", CKM_INVALID_MECHANISM, INVALID_CERT_EXTENSION }, + OD( ansiX962c2pnb272w1, ECCurve_X9_62_CHAR2_PNB272W1, + "ANSI X9.62 elliptic curve c2pnb272w1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2pnb304w1, ECCurve_X9_62_CHAR2_PNB304W1, + "ANSI X9.62 elliptic curve c2pnb304w1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb359v1, ECCurve_X9_62_CHAR2_TNB359V1, + "ANSI X9.62 elliptic curve c2tnb359v1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2pnb368w1, ECCurve_X9_62_CHAR2_PNB368W1, + "ANSI X9.62 elliptic curve c2pnb368w1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ), + OD( ansiX962c2tnb431r1, ECCurve_X9_62_CHAR2_TNB431R1, + "ANSI X9.62 elliptic curve c2tnb431r1", + CKM_INVALID_MECHANISM, + INVALID_CERT_EXTENSION ) +}; + +SECOidData * +SECOID_FindOID(const SECItem *oid) +{ + SECOidData *po; + SECOidData *ret; + int i; + + if (oid->len == 8) { + if (oid->data[6] == 0x00) { + /* XXX bounds check */ + po = &ANSI_oids[oid->data[7]]; + if (memcmp(oid->data, po->oid.data, 8) == 0) + ret = po; + } + if (oid->data[6] == 0x01) { + /* XXX bounds check */ + po = &ANSI_prime_oids[oid->data[7]]; + if (memcmp(oid->data, po->oid.data, 8) == 0) + ret = po; + } + } else if (oid->len == 5) { + /* XXX bounds check */ + po = &SECG_oids[oid->data[4]]; + if (memcmp(oid->data, po->oid.data, 5) == 0) + ret = po; + } else { + ret = NULL; + } + return(ret); +} + +ECCurveName +SECOID_FindOIDTag(const SECItem *oid) +{ + SECOidData *oiddata; + + oiddata = SECOID_FindOID (oid); + if (oiddata == NULL) + return ECCurve_noName; + + return oiddata->offset; +} diff --git a/src/share/native/sun/security/ec/impl/secitem.c b/src/share/native/sun/security/ec/impl/secitem.c new file mode 100644 index 000000000..d9daacc8b --- /dev/null +++ b/src/share/native/sun/security/ec/impl/secitem.c @@ -0,0 +1,199 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * Support routines for SECItem data structure. + * + * $Id: secitem.c,v 1.14 2006/05/22 22:24:34 wtchang%redhat.com Exp $ + */ + +#include + +#ifndef _WIN32 +#ifndef __linux__ +#include +#endif /* __linux__ */ +#include +#endif /* _WIN32 */ + +#ifdef _KERNEL +#include +#else +#include + +#ifndef _WIN32 +#include +#endif /* _WIN32 */ + +#include +#endif +#include "ec.h" +#include "ecl-curve.h" +#include "ecc_impl.h" + +void SECITEM_FreeItem(SECItem *, PRBool); + +SECItem * +SECITEM_AllocItem(PRArenaPool *arena, SECItem *item, unsigned int len, + int kmflag) +{ + SECItem *result = NULL; + void *mark = NULL; + + if (arena != NULL) { + mark = PORT_ArenaMark(arena); + } + + if (item == NULL) { + if (arena != NULL) { + result = PORT_ArenaZAlloc(arena, sizeof(SECItem), kmflag); + } else { + result = PORT_ZAlloc(sizeof(SECItem), kmflag); + } + if (result == NULL) { + goto loser; + } + } else { + PORT_Assert(item->data == NULL); + result = item; + } + + result->len = len; + if (len) { + if (arena != NULL) { + result->data = PORT_ArenaAlloc(arena, len, kmflag); + } else { + result->data = PORT_Alloc(len, kmflag); + } + if (result->data == NULL) { + goto loser; + } + } else { + result->data = NULL; + } + + if (mark) { + PORT_ArenaUnmark(arena, mark); + } + return(result); + +loser: + if ( arena != NULL ) { + if (mark) { + PORT_ArenaRelease(arena, mark); + } + if (item != NULL) { + item->data = NULL; + item->len = 0; + } + } else { + if (result != NULL) { + SECITEM_FreeItem(result, (item == NULL) ? PR_TRUE : PR_FALSE); + } + /* + * If item is not NULL, the above has set item->data and + * item->len to 0. + */ + } + return(NULL); +} + +SECStatus +SECITEM_CopyItem(PRArenaPool *arena, SECItem *to, const SECItem *from, + int kmflag) +{ + to->type = from->type; + if (from->data && from->len) { + if ( arena ) { + to->data = (unsigned char*) PORT_ArenaAlloc(arena, from->len, + kmflag); + } else { + to->data = (unsigned char*) PORT_Alloc(from->len, kmflag); + } + + if (!to->data) { + return SECFailure; + } + PORT_Memcpy(to->data, from->data, from->len); + to->len = from->len; + } else { + to->data = 0; + to->len = 0; + } + return SECSuccess; +} + +void +SECITEM_FreeItem(SECItem *zap, PRBool freeit) +{ + if (zap) { +#ifdef _KERNEL + kmem_free(zap->data, zap->len); +#else + free(zap->data); +#endif + zap->data = 0; + zap->len = 0; + if (freeit) { +#ifdef _KERNEL + kmem_free(zap, sizeof (SECItem)); +#else + free(zap); +#endif + } + } +} diff --git a/src/share/native/sun/security/ec/impl/secoidt.h b/src/share/native/sun/security/ec/impl/secoidt.h new file mode 100644 index 000000000..0935388cd --- /dev/null +++ b/src/share/native/sun/security/ec/impl/secoidt.h @@ -0,0 +1,103 @@ +/* ********************************************************************* + * + * Sun elects to have this file available under and governed by the + * Mozilla Public License Version 1.1 ("MPL") (see + * http://www.mozilla.org/MPL/ for full license text). For the avoidance + * of doubt and subject to the following, Sun also elects to allow + * licensees to use this file under the MPL, the GNU General Public + * License version 2 only or the Lesser General Public License version + * 2.1 only. Any references to the "GNU General Public License version 2 + * or later" or "GPL" in the following shall be construed to mean the + * GNU General Public License version 2 only. Any references to the "GNU + * Lesser General Public License version 2.1 or later" or "LGPL" in the + * following shall be construed to mean the GNU Lesser General Public + * License version 2.1 only. However, the following notice accompanied + * the original version of this file: + * + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Dr Vipul Gupta , Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + *********************************************************************** */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SECOIDT_H_ +#define _SECOIDT_H_ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * secoidt.h - public data structures for ASN.1 OID functions + * + * $Id: secoidt.h,v 1.23 2007/05/05 22:45:16 nelson%bolyard.com Exp $ + */ + +typedef struct SECOidDataStr SECOidData; +typedef struct SECAlgorithmIDStr SECAlgorithmID; + +/* +** An X.500 algorithm identifier +*/ +struct SECAlgorithmIDStr { + SECItem algorithm; + SECItem parameters; +}; + +#define SEC_OID_SECG_EC_SECP192R1 SEC_OID_ANSIX962_EC_PRIME192V1 +#define SEC_OID_SECG_EC_SECP256R1 SEC_OID_ANSIX962_EC_PRIME256V1 +#define SEC_OID_PKCS12_KEY_USAGE SEC_OID_X509_KEY_USAGE + +/* fake OID for DSS sign/verify */ +#define SEC_OID_SHA SEC_OID_MISS_DSS + +typedef enum { + INVALID_CERT_EXTENSION = 0, + UNSUPPORTED_CERT_EXTENSION = 1, + SUPPORTED_CERT_EXTENSION = 2 +} SECSupportExtenTag; + +struct SECOidDataStr { + SECItem oid; + ECCurveName offset; + const char * desc; + unsigned long mechanism; + SECSupportExtenTag supportedExtension; + /* only used for x.509 v3 extensions, so + that we can print the names of those + extensions that we don't even support */ +}; + +#endif /* _SECOIDT_H_ */ diff --git a/test/sun/security/ec/TestEC.java b/test/sun/security/ec/TestEC.java index 12694a03c..5429e5139 100644 --- a/test/sun/security/ec/TestEC.java +++ b/test/sun/security/ec/TestEC.java @@ -27,6 +27,8 @@ * @summary Provide out-of-the-box support for ECC algorithms * @library ../pkcs11 * @library ../pkcs11/ec + * @library ../pkcs11/sslecc + * @compile -XDignore.symbol.file TestEC.java * @run main TestEC */ @@ -35,12 +37,15 @@ import java.security.Provider; /* * Leverage the collection of EC tests used by PKCS11 * - * NOTE: the following files were copied here from the PKCS11 EC Test area + * NOTE: the following 6 files were copied here from the PKCS11 EC Test area * and must be kept in sync with the originals: * * ../pkcs11/ec/p12passwords.txt + * ../pkcs11/ec/certs/sunlabscerts.pem * ../pkcs11/ec/pkcs12/secp256r1server-secp384r1ca.p12 * ../pkcs11/ec/pkcs12/sect193r1server-rsa1024ca.p12 + * ../pkcs11/sslecc/keystore + * ../pkcs11/sslecc/truststore */ public class TestEC { @@ -49,18 +54,23 @@ public class TestEC { Provider p = new sun.security.ec.SunEC(); System.out.println("Running tests with " + p.getName() + " provider...\n"); - long start = System.currentTimeMillis(); + + /* + * The entry point used for each test is its instance method + * called main (not its static method called main). + */ new TestECDH().main(p); new TestECDSA().main(p); new TestCurves().main(p); new TestKeyFactory().main(p); new TestECGenSpec().main(p); new ReadPKCS12().main(p); - //new ReadCertificates().main(p); - long stop = System.currentTimeMillis(); + new ReadCertificates().main(p); + new ClientJSSEServerJSSE().main(p); + long stop = System.currentTimeMillis(); System.out.println("\nCompleted tests with " + p.getName() + - " provider (" + (stop - start) + " ms)."); + " provider (" + ((stop - start) / 1000.0) + " seconds)."); } } diff --git a/test/sun/security/ec/certs/sunlabscerts.pem b/test/sun/security/ec/certs/sunlabscerts.pem new file mode 100644 index 000000000..5dfb35240 --- /dev/null +++ b/test/sun/security/ec/certs/sunlabscerts.pem @@ -0,0 +1,1317 @@ +-----BEGIN CERTIFICATE----- +MIIDyDCCAzGgAwIBAgIJAJh6e4zfP9lXMA0GCSqGSIb3DQEBBQUAMIGfMQswCQYD +VQQGEwJVUzELMAkGA1UECAwCQ0ExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxJjAk +BgNVBAoMHVN1biBNaWNyb3N5c3RlbXMgTGFib3JhdG9yaWVzMR8wHQYDVQQLDBZU +ZXN0IFNlcnZlciAoUlNBIDEwMjQpMSIwIAYDVQQDDBlkZXYuZXhwZXJpbWVudGFs +c3R1ZmYuY29tMB4XDTA1MTIwNjIxMjk1OFoXDTEwMDExNDIxMjk1OFowgZ8xCzAJ +BgNVBAYTAlVTMQswCQYDVQQIDAJDQTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEm +MCQGA1UECgwdU3VuIE1pY3Jvc3lzdGVtcyBMYWJvcmF0b3JpZXMxHzAdBgNVBAsM +FlRlc3QgU2VydmVyIChSU0EgMTAyNCkxIjAgBgNVBAMMGWRldi5leHBlcmltZW50 +YWxzdHVmZi5jb20wgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAJrKL3D9xOca 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cert.verify(key, p.getName()); + } catch (NoSuchAlgorithmException e) { + System.out.println("Warning: " + e.getMessage() + + ". Trying another provider..."); + cert.verify(key); + } } // try some random invalid signatures to make sure we get the correct diff --git a/test/sun/security/pkcs11/sslecc/CipherTest.java b/test/sun/security/pkcs11/sslecc/CipherTest.java index 6777eca50..8d0dc3431 100644 --- a/test/sun/security/pkcs11/sslecc/CipherTest.java +++ b/test/sun/security/pkcs11/sslecc/CipherTest.java @@ -298,7 +298,7 @@ public class CipherTest { throws Exception { long time = System.currentTimeMillis(); String relPath; - if ((args.length > 0) && args[0].equals("sh")) { + if ((args != null) && (args.length > 0) && args[0].equals("sh")) { relPath = pathToStoresSH; } else { relPath = pathToStores; -- GitLab