8139565: Restrict certificates with DSA keys less than 1024 bits

Reviewed-by: xuelei

src/share/classes/sun/security/util/KeyUtil.java

 /*
- * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,6 +32,7 @@ import java.security.InvalidKeyException;
 import java.security.interfaces.ECKey;
 import java.security.interfaces.RSAKey;
 import java.security.interfaces.DSAKey;
+import java.security.interfaces.DSAParams;
 import java.security.SecureRandom;
 import java.security.spec.KeySpec;
 import javax.crypto.SecretKey;
@@ -87,7 +88,8 @@ public final class KeyUtil {
             size = pubk.getParams().getOrder().bitLength();
         } else if (key instanceof DSAKey) {
             DSAKey pubk = (DSAKey)key;
-            size = pubk.getParams().getP().bitLength();
+            DSAParams params = pubk.getParams();    // params can be null
+            size = (params != null) ? params.getP().bitLength() : -1;
         } else if (key instanceof DHKey) {
             DHKey pubk = (DHKey)key;
             size = pubk.getParams().getP().bitLength();

src/share/lib/security/java.security-aix

@@ -481,7 +481,8 @@ krb5.kdc.bad.policy = tryLast
 #   jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
 #
 #
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+    DSA keySize < 1024
 
 # Algorithm restrictions for Secure Socket Layer/Transport Layer Security
 # (SSL/TLS) processing

src/share/lib/security/java.security-linux

@@ -481,7 +481,8 @@ krb5.kdc.bad.policy = tryLast
 #   jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
 #
 #
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+    DSA keySize < 1024
 
 # Algorithm restrictions for Secure Socket Layer/Transport Layer Security
 # (SSL/TLS) processing

src/share/lib/security/java.security-macosx

@@ -484,7 +484,8 @@ krb5.kdc.bad.policy = tryLast
 #   jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
 #
 #
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+    DSA keySize < 1024
 
 # Algorithm restrictions for Secure Socket Layer/Transport Layer Security
 # (SSL/TLS) processing

src/share/lib/security/java.security-solaris

@@ -483,7 +483,8 @@ krb5.kdc.bad.policy = tryLast
 #   jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
 #
 #
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+    DSA keySize < 1024
 
 # Algorithm restrictions for Secure Socket Layer/Transport Layer Security
 # (SSL/TLS) processing

src/share/lib/security/java.security-windows

@@ -484,7 +484,8 @@ krb5.kdc.bad.policy = tryLast
 #   jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
 #
 #
-jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
+jdk.certpath.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
+    DSA keySize < 1024
 
 # Algorithm restrictions for Secure Socket Layer/Transport Layer Security
 # (SSL/TLS) processing

test/javax/net/ssl/TLSv12/DisabledShortDSAKeys.java

+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// SunJSSE does not support dynamic system properties, no way to re-use
+// system properties in samevm/agentvm mode.
+
+/*
+ * @test
+ * @bug 8139565
+ * @summary Restrict certificates with DSA keys less than 1024 bits
+ *
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1.2
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1.2
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1.1
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1.1
+ * @run main/othervm DisabledShortDSAKeys PKIX TLSv1
+ * @run main/othervm DisabledShortDSAKeys SunX509 TLSv1
+ * @run main/othervm DisabledShortDSAKeys PKIX SSLv3
+ * @run main/othervm DisabledShortDSAKeys SunX509 SSLv3
+ */
+
+import java.net.*;
+import java.util.*;
+import java.io.*;
+import javax.net.ssl.*;
+import java.security.Security;
+import java.security.KeyStore;
+import java.security.KeyFactory;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateFactory;
+import java.security.spec.*;
+import java.security.interfaces.*;
+import java.util.Base64;
+
+
+public class DisabledShortDSAKeys {
+
+    /*
+     * =============================================================
+     * Set the various variables needed for the tests, then
+     * specify what tests to run on each side.
+     */
+
+    /*
+     * Should we run the client or server in a separate thread?
+     * Both sides can throw exceptions, but do you have a preference
+     * as to which side should be the main thread.
+     */
+    static boolean separateServerThread = true;
+
+    /*
+     * Where do we find the keystores?
+     */
+    // Certificates and key used in the test.
+    static String trustedCertStr =
+        "-----BEGIN CERTIFICATE-----\n" +
+        "MIIDDjCCAs2gAwIBAgIJAO5/hbm1ByJOMAkGByqGSM44BAMwHzELMAkGA1UEBhMC\n" +
+        "VVMxEDAOBgNVBAoTB0V4YW1wbGUwHhcNMTYwMjE2MDQzNTQ2WhcNMzcwMTI2MDQz\n" +
+        "NTQ2WjAfMQswCQYDVQQGEwJVUzEQMA4GA1UEChMHRXhhbXBsZTCCAbgwggEsBgcq\n" +
+        "hkjOOAQBMIIBHwKBgQC4aSK8nBYdWJtuBkz6yoDyjZnNuGFSpDmx1ggKpLpcnPuw\n" +
+        "YKAbUhqdYhZtaIqQ4aO0T1ZS/HuOM0zvddnMUidFNX3RUvDkvdD/JYOnjqzCm+xW\n" +
+        "U0NFuPHZdapQY5KFk3ugkqZpHLY1StZbu0qugZOZjbBOMwB7cHAbMDuVpEr8DQIV\n" +
+        "AOi+ig+h3okFbWEE9MztiI2+DqNrAoGBAKh2EZbuWU9NoHglhVzfDUoz8CeyW6W6\n" +
+        "rUZuIOQsjWaYOeRPWX0UVAGq9ykIOfamEpurKt4H8ge/pHaL9iazJjonMHOXG12A\n" +
+        "0lALsMDGv22zVaJzXjOBvdPzc87opr0LIVgHASKOcDYjsICKNYPlS2cL3MJoD+bj\n" +
+        "NAR67b90VBbEA4GFAAKBgQCGrkRp2tdj2mZF7Qz0tO6p3xSysbEfN6QZxOJYPTvM\n" +
+        "yIYfLV9Yoy7XaRd/mCpJo/dqmsZMzowtyi+u+enuVpOLKiq/lyCktL+xUzZAjLT+\n" +
+        "9dafHlS1wR3pDSa1spo9xTEi4Ff/DQDHcdGalBxSXX/UdRtSecIYAp5/fkt3QZ5v\n" +
+        "0aOBkTCBjjAdBgNVHQ4EFgQUX4qbP5PgBx1J8BJ8qEgfoKVLSnQwTwYDVR0jBEgw\n" +
+        "RoAUX4qbP5PgBx1J8BJ8qEgfoKVLSnShI6QhMB8xCzAJBgNVBAYTAlVTMRAwDgYD\n" +
+        "VQQKEwdFeGFtcGxlggkA7n+FubUHIk4wDwYDVR0TAQH/BAUwAwEB/zALBgNVHQ8E\n" +
+        "BAMCAgQwCQYHKoZIzjgEAwMwADAtAhUAkr5bINXyy/McAx6qwhb6r0/QJUgCFFUP\n" +
+        "CZokA4/NqJIgq8ThpTQAE8SB\n" +
+        "-----END CERTIFICATE-----";
+
+    static String targetCertStr =
+        "-----BEGIN CERTIFICATE-----\n" +
+        "MIICUjCCAhGgAwIBAgIJAIiDrs/4W8rtMAkGByqGSM44BAMwHzELMAkGA1UEBhMC\n" +
+        "VVMxEDAOBgNVBAoTB0V4YW1wbGUwHhcNMTYwMjE2MDQzNTQ2WhcNMzUxMTAzMDQz\n" +
+        "NTQ2WjA5MQswCQYDVQQGEwJVUzEQMA4GA1UECgwHRXhhbXBsZTEYMBYGA1UEAwwP\n" +
+        "d3d3LmV4YW1wbGUuY29tMIHwMIGoBgcqhkjOOAQBMIGcAkEAs6A0p3TysTtVXGSv\n" +
+        "ThR/8GHpbL49KyWRJBMIlmLc5jl/wxJgnL1t07p4YTOEa6ecyTFos04Z8n2GARmp\n" +
+        "zYlUywIVAJLDcf4JXhZbguRFSQdWwWhZkh+LAkBLCzh3Xvpmc/5CDqU+QHqDcuSk\n" +
+        "5B8+ZHaHRi2KQ00ejilpF2qZpW5JdHe4m3Pggh0MIuaAGX+leM4JKlnObj14A0MA\n" +
+        "AkAYb+DYlFgStFhF1ip7rFzY8K6i/3ellkXI2umI/XVwxUQTHSlk5nFOep5Dfzm9\n" +
+        "pADJwuSe1qGHsHB5LpMZPVpto4GEMIGBMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgPo\n" +
+        "MB0GA1UdDgQWBBT8nsFyccF4q1dtpWE1dkNK5UiXtTAfBgNVHSMEGDAWgBRfips/\n" +
+        "k+AHHUnwEnyoSB+gpUtKdDAnBgNVHSUEIDAeBggrBgEFBQcDAQYIKwYBBQUHAwIG\n" +
+        "CCsGAQUFBwMDMAkGByqGSM44BAMDMAAwLQIUIcIlxpIwaZXdpMC+U076unR1Mp8C\n" +
+        "FQCD/NE8O0xwq57nwFfp7tUvUHYMMA==\n" +
+        "-----END CERTIFICATE-----";
+
+    // Private key in the format of PKCS#8, key size is 512 bits.
+    static String targetPrivateKey =
+        "MIHGAgEAMIGoBgcqhkjOOAQBMIGcAkEAs6A0p3TysTtVXGSvThR/8GHpbL49KyWR\n" +
+        "JBMIlmLc5jl/wxJgnL1t07p4YTOEa6ecyTFos04Z8n2GARmpzYlUywIVAJLDcf4J\n" +
+        "XhZbguRFSQdWwWhZkh+LAkBLCzh3Xvpmc/5CDqU+QHqDcuSk5B8+ZHaHRi2KQ00e\n" +
+        "jilpF2qZpW5JdHe4m3Pggh0MIuaAGX+leM4JKlnObj14BBYCFHB2Wek2g5hpNj5y\n" +
+        "RQfCc6CFO0dv";
+
+    static char passphrase[] = "passphrase".toCharArray();
+
+    /*
+     * Is the server ready to serve?
+     */
+    volatile static boolean serverReady = false;
+
+    /*
+     * Turn on SSL debugging?
+     */
+    static boolean debug = false;
+
+    /*
+     * Define the server side of the test.
+     *
+     * If the server prematurely exits, serverReady will be set to true
+     * to avoid infinite hangs.
+     */
+    void doServerSide() throws Exception {
+        SSLContext context = generateSSLContext(null, targetCertStr,
+                                            targetPrivateKey);
+        SSLServerSocketFactory sslssf = context.getServerSocketFactory();
+        SSLServerSocket sslServerSocket =
+            (SSLServerSocket)sslssf.createServerSocket(serverPort);
+        serverPort = sslServerSocket.getLocalPort();
+
+        /*
+         * Signal Client, we're ready for his connect.
+         */
+        serverReady = true;
+
+        try (SSLSocket sslSocket = (SSLSocket)sslServerSocket.accept()) {
+            try (InputStream sslIS = sslSocket.getInputStream()) {
+                sslIS.read();
+            }
+
+            throw new Exception(
+                    "DSA keys shorter than 1024 bits should be disabled");
+        } catch (SSLHandshakeException sslhe) {
+            // the expected exception, ignore
+        }
+    }
+
+    /*
+     * Define the client side of the test.
+     *
+     * If the server prematurely exits, serverReady will be set to true
+     * to avoid infinite hangs.
+     */
+    void doClientSide() throws Exception {
+
+        /*
+         * Wait for server to get started.
+         */
+        while (!serverReady) {
+            Thread.sleep(50);
+        }
+
+        SSLContext context = generateSSLContext(trustedCertStr, null, null);
+        SSLSocketFactory sslsf = context.getSocketFactory();
+
+        try (SSLSocket sslSocket =
+            (SSLSocket)sslsf.createSocket("localhost", serverPort)) {
+
+            // only enable the target protocol
+            sslSocket.setEnabledProtocols(new String[] {enabledProtocol});
+
+            // enable a block cipher
+            sslSocket.setEnabledCipherSuites(
+                new String[] {"TLS_DHE_DSS_WITH_AES_128_CBC_SHA"});
+
+            try (OutputStream sslOS = sslSocket.getOutputStream()) {
+                sslOS.write('B');
+                sslOS.flush();
+            }
+
+            throw new Exception(
+                    "DSA keys shorter than 1024 bits should be disabled");
+        } catch (SSLHandshakeException sslhe) {
+            // the expected exception, ignore
+        }
+    }
+
+    /*
+     * =============================================================
+     * The remainder is just support stuff
+     */
+    private static String tmAlgorithm;        // trust manager
+    private static String enabledProtocol;    // the target protocol
+
+    private static void parseArguments(String[] args) {
+        tmAlgorithm = args[0];
+        enabledProtocol = args[1];
+    }
+
+    private static SSLContext generateSSLContext(String trustedCertStr,
+            String keyCertStr, String keySpecStr) throws Exception {
+
+        // generate certificate from cert string
+        CertificateFactory cf = CertificateFactory.getInstance("X.509");
+
+        // create a key store
+        KeyStore ks = KeyStore.getInstance("JKS");
+        ks.load(null, null);
+
+        // import the trused cert
+        Certificate trusedCert = null;
+        ByteArrayInputStream is = null;
+        if (trustedCertStr != null) {
+            is = new ByteArrayInputStream(trustedCertStr.getBytes());
+            trusedCert = cf.generateCertificate(is);
+            is.close();
+
+            ks.setCertificateEntry("DSA Export Signer", trusedCert);
+        }
+
+        if (keyCertStr != null) {
+            // generate the private key.
+            PKCS8EncodedKeySpec priKeySpec = new PKCS8EncodedKeySpec(
+                                Base64.getMimeDecoder().decode(keySpecStr));
+            KeyFactory kf = KeyFactory.getInstance("DSA");
+            DSAPrivateKey priKey =
+                    (DSAPrivateKey)kf.generatePrivate(priKeySpec);
+
+            // generate certificate chain
+            is = new ByteArrayInputStream(keyCertStr.getBytes());
+            Certificate keyCert = cf.generateCertificate(is);
+            is.close();
+
+            Certificate[] chain = null;
+            if (trusedCert != null) {
+                chain = new Certificate[2];
+                chain[0] = keyCert;
+                chain[1] = trusedCert;
+            } else {
+                chain = new Certificate[1];
+                chain[0] = keyCert;
+            }
+
+            // import the key entry.
+            ks.setKeyEntry("Whatever", priKey, passphrase, chain);
+        }
+
+        // create SSL context
+        TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmAlgorithm);
+        tmf.init(ks);
+
+        SSLContext ctx = SSLContext.getInstance("TLS");
+        if (keyCertStr != null && !keyCertStr.isEmpty()) {
+            KeyManagerFactory kmf = KeyManagerFactory.getInstance("NewSunX509");
+            kmf.init(ks, passphrase);
+
+            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
+            ks = null;
+        } else {
+            ctx.init(null, tmf.getTrustManagers(), null);
+        }
+
+        return ctx;
+    }
+
+
+    // use any free port by default
+    volatile int serverPort = 0;
+
+    volatile Exception serverException = null;
+    volatile Exception clientException = null;
+
+    public static void main(String[] args) throws Exception {
+        if (debug)
+            System.setProperty("javax.net.debug", "all");
+
+        /*
+         * Get the customized arguments.
+         */
+        parseArguments(args);
+
+        /*
+         * Start the tests.
+         */
+        new DisabledShortDSAKeys();
+    }
+
+    Thread clientThread = null;
+    Thread serverThread = null;
+
+    /*
+     * Primary constructor, used to drive remainder of the test.
+     *
+     * Fork off the other side, then do your work.
+     */
+    DisabledShortDSAKeys() throws Exception {
+        Exception startException = null;
+        try {
+            if (separateServerThread) {
+                startServer(true);
+                startClient(false);
+            } else {
+                startClient(true);
+                startServer(false);
+            }
+        } catch (Exception e) {
+            startException = e;
+        }
+
+        /*
+         * Wait for other side to close down.
+         */
+        if (separateServerThread) {
+            if (serverThread != null) {
+                serverThread.join();
+            }
+        } else {
+            if (clientThread != null) {
+                clientThread.join();
+            }
+        }
+
+        /*
+         * When we get here, the test is pretty much over.
+         * Which side threw the error?
+         */
+        Exception local;
+        Exception remote;
+
+        if (separateServerThread) {
+            remote = serverException;
+            local = clientException;
+        } else {
+            remote = clientException;
+            local = serverException;
+        }
+
+        Exception exception = null;
+
+        /*
+         * Check various exception conditions.
+         */
+        if ((local != null) && (remote != null)) {
+            // If both failed, return the curthread's exception.
+            local.initCause(remote);
+            exception = local;
+        } else if (local != null) {
+            exception = local;
+        } else if (remote != null) {
+            exception = remote;
+        } else if (startException != null) {
+            exception = startException;
+        }
+
+        /*
+         * If there was an exception *AND* a startException,
+         * output it.
+         */
+        if (exception != null) {
+            if (exception != startException && startException != null) {
+                exception.addSuppressed(startException);
+            }
+            throw exception;
+        }
+
+        // Fall-through: no exception to throw!
+    }
+
+    void startServer(boolean newThread) throws Exception {
+        if (newThread) {
+            serverThread = new Thread() {
+                public void run() {
+                    try {
+                        doServerSide();
+                    } catch (Exception e) {
+                        /*
+                         * Our server thread just died.
+                         *
+                         * Release the client, if not active already...
+                         */
+                        System.err.println("Server died...");
+                        serverReady = true;
+                        serverException = e;
+                    }
+                }
+            };
+            serverThread.start();
+        } else {
+            try {
+                doServerSide();
+            } catch (Exception e) {
+                serverException = e;
+            } finally {
+                serverReady = true;
+            }
+        }
+    }
+
+    void startClient(boolean newThread) throws Exception {
+        if (newThread) {
+            clientThread = new Thread() {
+                public void run() {
+                    try {
+                        doClientSide();
+                    } catch (Exception e) {
+                        /*
+                         * Our client thread just died.
+                         */
+                        System.err.println("Client died...");
+                        clientException = e;
+                    }
+                }
+            };
+            clientThread.start();
+        } else {
+            try {
+                doClientSide();
+            } catch (Exception e) {
+                clientException = e;
+            }
+        }
+    }
+}