From 4e049c52599d4a3fd918ba8570f49d88159e551b Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Fri, 29 Mar 2013 20:45:33 +0100 Subject: [PATCH] Add AES-NI GCM stitch. --- Configure | 2 +- TABLE | 32 +- crypto/evp/e_aes.c | 101 ++- crypto/evp/evptests.txt | 2 + crypto/modes/Makefile | 2 + crypto/modes/asm/aesni-gcm-x86_64.pl | 1028 ++++++++++++++++++++++++++ 6 files changed, 1146 insertions(+), 21 deletions(-) create mode 100644 crypto/modes/asm/aesni-gcm-x86_64.pl diff --git a/Configure b/Configure index e85e5be140..24c8dc2665 100755 --- a/Configure +++ b/Configure @@ -128,7 +128,7 @@ my $x86_asm="x86cpuid.o:bn-586.o co-586.o x86-mont.o x86-gf2m.o:des-586.o crypt5 my $x86_elf_asm="$x86_asm:elf"; -my $x86_64_asm="x86_64cpuid.o:x86_64-gcc.o x86_64-mont.o x86_64-mont5.o x86_64-gf2m.o modexp512-x86_64.o::aes-x86_64.o vpaes-x86_64.o bsaes-x86_64.o aesni-x86_64.o aesni-sha1-x86_64.o::md5-x86_64.o:sha1-x86_64.o sha256-x86_64.o sha512-x86_64.o::rc4-x86_64.o rc4-md5-x86_64.o:::wp-x86_64.o:cmll-x86_64.o cmll_misc.o:ghash-x86_64.o:e_padlock-x86_64.o"; +my $x86_64_asm="x86_64cpuid.o:x86_64-gcc.o x86_64-mont.o x86_64-mont5.o x86_64-gf2m.o modexp512-x86_64.o::aes-x86_64.o vpaes-x86_64.o bsaes-x86_64.o aesni-x86_64.o aesni-sha1-x86_64.o::md5-x86_64.o:sha1-x86_64.o sha256-x86_64.o sha512-x86_64.o::rc4-x86_64.o rc4-md5-x86_64.o:::wp-x86_64.o:cmll-x86_64.o cmll_misc.o:ghash-x86_64.o aesni-gcm-x86_64.o:e_padlock-x86_64.o"; my $ia64_asm="ia64cpuid.o:bn-ia64.o ia64-mont.o::aes_core.o aes_cbc.o aes-ia64.o::md5-ia64.o:sha1-ia64.o sha256-ia64.o sha512-ia64.o::rc4-ia64.o rc4_skey.o:::::ghash-ia64.o::void"; my $sparcv9_asm="sparcv9cap.o sparccpuid.o:bn-sparcv9.o sparcv9-mont.o sparcv9a-mont.o vis3-mont.o sparct4-mont.o sparcv9-gf2m.o:des_enc-sparc.o fcrypt_b.o:aes_core.o aes_cbc.o aes-sparcv9.o aest4-sparcv9.o::md5-sparcv9.o:sha1-sparcv9.o sha256-sparcv9.o sha512-sparcv9.o::::::camellia.o cmll_misc.o cmll_cbc.o cmllt4-sparcv9.o:ghash-sparcv9.o::void"; my $sparcv8_asm=":sparcv8.o:des_enc-sparc.o fcrypt_b.o:::::::::::::void"; diff --git a/TABLE b/TABLE index 4da7f2fd83..a3ca775a61 100644 --- a/TABLE +++ b/TABLE @@ -318,7 +318,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -813,7 +813,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = auto $dso_scheme = win32 @@ -1506,7 +1506,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = macosx $dso_scheme = dlfcn @@ -1671,7 +1671,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = auto $dso_scheme = win32 @@ -1770,7 +1770,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = macosx $dso_scheme = dlfcn @@ -1836,7 +1836,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -2034,7 +2034,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -2562,7 +2562,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -2760,7 +2760,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -2826,7 +2826,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -4476,7 +4476,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -4509,7 +4509,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -4542,7 +4542,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -4740,7 +4740,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = mingw64 $dso_scheme = win32 @@ -5730,7 +5730,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn @@ -5763,7 +5763,7 @@ $rmd160_obj = $rc5_obj = $wp_obj = wp-x86_64.o $cmll_obj = cmll-x86_64.o cmll_misc.o -$modes_obj = ghash-x86_64.o +$modes_obj = ghash-x86_64.o aesni-gcm-x86_64.o $engines_obj = e_padlock-x86_64.o $perlasm_scheme = elf $dso_scheme = dlfcn diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index eb498dee14..2400d0041e 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -227,6 +227,26 @@ void aesni_ccm64_decrypt_blocks (const unsigned char *in, const unsigned char ivec[16], unsigned char cmac[16]); +#if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64) +size_t aesni_gcm_encrypt(const unsigned char *in, + unsigned char *out, + size_t len, + const void *key, + unsigned char ivec[16], + u64 *Xi); +#define AES_gcm_encrypt aesni_gcm_encrypt +size_t aesni_gcm_decrypt(const unsigned char *in, + unsigned char *out, + size_t len, + const void *key, + unsigned char ivec[16], + u64 *Xi); +#define AES_gcm_decrypt aesni_gcm_decrypt +void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *in,size_t len); +#define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \ + gctx->gcm.ghash==gcm_ghash_avx) +#endif + static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { @@ -1297,8 +1317,24 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, /* Encrypt payload */ if (gctx->ctr) { + size_t bulk=0; +#if defined(AES_GCM_ASM) + if (len>=32 && AES_GCM_ASM(gctx)) + { + if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0)) + return -1; + + bulk = AES_gcm_encrypt(in,out,len, + gctx->gcm.key, + gctx->gcm.Yi.c, + gctx->gcm.Xi.u); + gctx->gcm.len.u[1] += bulk; + } +#endif if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, - in, out, len, + in +bulk, + out+bulk, + len-bulk, gctx->ctr)) goto err; } @@ -1316,8 +1352,24 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, /* Decrypt */ if (gctx->ctr) { + size_t bulk=0; +#if defined(AES_GCM_ASM) + if (len>=16 && AES_GCM_ASM(gctx)) + { + if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0)) + return -1; + + bulk = AES_gcm_decrypt(in,out,len, + gctx->gcm.key, + gctx->gcm.Yi.c, + gctx->gcm.Xi.u); + gctx->gcm.len.u[1] += bulk; + } +#endif if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, - in, out, len, + in +bulk, + out+bulk, + len-bulk, gctx->ctr)) goto err; } @@ -1367,8 +1419,28 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, { if (gctx->ctr) { + size_t bulk=0; +#if defined(AES_GCM_ASM) + if (len>=32 && AES_GCM_ASM(gctx)) + { + size_t res = (16-gctx->gcm.mres)%16; + + if (CRYPTO_gcm128_encrypt(&gctx->gcm, + in,out,res)) + return -1; + + bulk = AES_gcm_encrypt(in+res, + out+res,len-res, gctx->gcm.key, + gctx->gcm.Yi.c, + gctx->gcm.Xi.u); + gctx->gcm.len.u[1] += bulk; + bulk += res; + } +#endif if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm, - in, out, len, + in +bulk, + out+bulk, + len-bulk, gctx->ctr)) return -1; } @@ -1381,8 +1453,29 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, { if (gctx->ctr) { + size_t bulk=0; +#if defined(AES_GCM_ASM) + if (len>=16 && AES_GCM_ASM(gctx)) + { + size_t res = (16-gctx->gcm.mres)%16; + + if (CRYPTO_gcm128_decrypt(&gctx->gcm, + in,out,res)) + return -1; + + bulk = AES_gcm_decrypt(in+res, + out+res,len-res, + gctx->gcm.key, + gctx->gcm.Yi.c, + gctx->gcm.Xi.u); + gctx->gcm.len.u[1] += bulk; + bulk += res; + } +#endif if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm, - in, out, len, + in +bulk, + out+bulk, + len-bulk, gctx->ctr)) return -1; } diff --git a/crypto/evp/evptests.txt b/crypto/evp/evptests.txt index fd142c2836..db1c2ac6ad 100644 --- a/crypto/evp/evptests.txt +++ b/crypto/evp/evptests.txt @@ -367,5 +367,7 @@ aes-128-gcm:00000000000000000000000000000000:000000000000000000000000:0000000000 aes-128-gcm:00000000000000000000000000000000:000000000000000000000000:0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000:0388dace60b6a392f328c2b971b2fe78f795aaab494b5923f7fd89ff948bc1e0200211214e7394da2089b6acd093abe0c94da219118e297d7b7ebcbcc9c388f28ade7d85a8ee35616f7124a9d527029195b84d1b96c690ff2f2de30bf2ec89e00253786e126504f0dab90c48a30321de3345e6b0461e7c9e6c6b7afedde83f40::cac45f60e31efd3b5a43b98a22ce1aa1 # 192 bytes plaintext, iv is chosen so that initial counter LSB is 0xFF aes-128-gcm:00000000000000000000000000000000:ffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000:56b3373ca9ef6e4a2b64fe1e9a17b61425f10d47a75a5fce13efc6bc784af24f4141bdd48cf7c770887afd573cca5418a9aeffcd7c5ceddfc6a78397b9a85b499da558257267caab2ad0b23ca476a53cb17fb41c4b8b475cb4f3f7165094c229c9e8c4dc0a2a5ff1903e501511221376a1cdb8364c5061a20cae74bc4acd76ceb0abc9fd3217ef9f8c90be402ddf6d8697f4f880dff15bfb7a6b28241ec8fe183c2d59e3f9dfff653c7126f0acb9e64211f42bae12af462b1070bef1ab5e3606::566f8ef683078bfdeeffa869d751a017 +# 288 bytes plaintext, iv is chosen so that initial counter LSB is 0xFF +aes-128-gcm:00000000000000000000000000000000:ffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000: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::8b307f6b33286d0ab026a9ed3fe1e85f # 80 bytes plaintext, submitted by Intel aes-128-gcm:843ffcf5d2b72694d19ed01d01249412:dbcca32ebf9b804617c3aa9e:000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f:6268c6fa2a80b2d137467f092f657ac04d89be2beaa623d61b5a868c8f03ff95d3dcee23ad2f1ab3a6c80eaf4b140eb05de3457f0fbc111a6b43d0763aa422a3013cf1dc37fe417d1fbfc449b75d4cc5:00000000000000000000000000000000101112131415161718191a1b1c1d1e1f:3b629ccfbc1119b7319e1dce2cd6fd6d diff --git a/crypto/modes/Makefile b/crypto/modes/Makefile index 811969304f..36bb812b57 100644 --- a/crypto/modes/Makefile +++ b/crypto/modes/Makefile @@ -50,6 +50,8 @@ ghash-x86.s: asm/ghash-x86.pl $(PERL) asm/ghash-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@ ghash-x86_64.s: asm/ghash-x86_64.pl $(PERL) asm/ghash-x86_64.pl $(PERLASM_SCHEME) > $@ +aesni-gcm-x86_64.s: asm/aesni-gcm-x86_64.pl + $(PERL) asm/aesni-gcm-x86_64.pl $(PERLASM_SCHEME) > $@ ghash-sparcv9.s: asm/ghash-sparcv9.pl $(PERL) asm/ghash-sparcv9.pl $@ $(CFLAGS) ghash-alpha.s: asm/ghash-alpha.pl diff --git a/crypto/modes/asm/aesni-gcm-x86_64.pl b/crypto/modes/asm/aesni-gcm-x86_64.pl new file mode 100644 index 0000000000..31987146b0 --- /dev/null +++ b/crypto/modes/asm/aesni-gcm-x86_64.pl @@ -0,0 +1,1028 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# +# AES-NI-CTR+GHASH stitch. +# +# February 2013 +# +# OpenSSL GCM implementation is organized in such way that its +# performance is rather close to the sum of its streamed components, +# in the context parallelized AES-NI CTR and modulo-scheduled +# PCLMULQDQ-enabled GHASH. Unfortunately, as no stitch implementation +# was observed to perform significantly better than the sum of the +# components on contemporary CPUs, the effort was deemed impossible to +# justify. This module is based on combination of Intel submissions, +# [1] and [2], with MOVBE twist suggested by Ilya Albrekht and Max +# Locktyukhin of Intel Corp. who verified that it reduces shuffles +# pressure with notable relative improvement on upcoming Haswell +# processor. [Exact performance numbers to be added at launch.] +# +# [1] http://rt.openssl.org/Ticket/Display.html?id=2900&user=guest&pass=guest +# [2] http://www.intel.com/content/dam/www/public/us/en/documents/software-support/enabling-high-performance-gcm.pdf + +$flavour = shift; +$output = shift; +if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } + +$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or +die "can't locate x86_64-xlate.pl"; + +if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1` + =~ /GNU assembler version ([2-9]\.[0-9]+)/) { + $avx = ($1>=2.19) + ($1>=2.22); +} + +if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) && + `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) { + $avx = ($1>=2.09) + ($1>=2.10); +} + +if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) && + `ml64 2>&1` =~ /Version ([0-9]+)\./) { + $avx = ($1>=10) + ($1>=11); +} + +open OUT,"| \"$^X\" $xlate $flavour $output"; +*STDOUT=*OUT; + +if ($avx>1) {{{ + +($inp,$out,$len,$key,$ivp,$Xip)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9"); + +($Ii,$T1,$T2,$Hkey, + $Z0,$Z1,$Z2,$Z3,$Xi) = map("%xmm$_",(0..8)); + +($inout0,$inout1,$inout2,$inout3,$inout4,$inout5,$rndkey) = map("%xmm$_",(9..15)); + +($counter,$rounds,$ret,$const,$in0,$end0)=("%ebx","%ebp","%r10","%r11","%r14","%r15"); + +$code=<<___; +.text + +.type _aesni_ctr32_ghash_6x,\@abi-omnipotent +.align 32 +_aesni_ctr32_ghash_6x: + vmovdqu 0x20($const),$T2 # borrow $T2, .Lone_msb + sub \$6,$len + vpxor $Z0,$Z0,$Z0 # $Z0 = 0 + vmovdqu 0x00-0x80($key),$rndkey + vpaddb $T2,$T1,$inout1 + vpaddb $T2,$inout1,$inout2 + vpaddb $T2,$inout2,$inout3 + vpaddb $T2,$inout3,$inout4 + vpaddb $T2,$inout4,$inout5 + vpxor $rndkey,$T1,$inout0 + vmovdqu $Z0,16+8(%rsp) # "$Z3" = 0 + jmp .Loop6x + +.align 32 +.Loop6x: + add \$6<<24,$counter + jc .Lhandle_ctr32 # discard $inout[1-5]? + vmovdqu 0x00-0x20($Xip),$Hkey # $Hkey^1 + vpaddb $T2,$inout5,$T1 # next counter value + vpxor $rndkey,$inout1,$inout1 + vpxor $rndkey,$inout2,$inout2 + +.Lresume_ctr32: + vmovdqu $T1,($ivp) # save next counter value + vpclmulqdq \$0x10,$Hkey,$Z3,$Z1 + vpxor $rndkey,$inout3,$inout3 + vmovups 0x10-0x80($key),$T2 # borrow $T2 for $rndkey + vpclmulqdq \$0x01,$Hkey,$Z3,$Z2 + xor %r12,%r12 + cmp $in0,$end0 + + vaesenc $T2,$inout0,$inout0 + vmovdqu 0x30+8(%rsp),$Ii # I[4] + vpxor $rndkey,$inout4,$inout4 + vpclmulqdq \$0x00,$Hkey,$Z3,$T1 + vaesenc $T2,$inout1,$inout1 + vpxor $rndkey,$inout5,$inout5 + setnc %r12b + vpclmulqdq \$0x11,$Hkey,$Z3,$Z3 + vaesenc $T2,$inout2,$inout2 + vmovdqu 0x10-0x20($Xip),$Hkey # $Hkey^2 + neg %r12 + vaesenc $T2,$inout3,$inout3 + vpxor $Z1,$Z2,$Z2 + vpclmulqdq \$0x00,$Hkey,$Ii,$Z1 + vpxor $Z0,$Xi,$Xi # modulo-scheduled + vaesenc $T2,$inout4,$inout4 + vpxor $Z1,$T1,$Z0 + and \$0x60,%r12 + vmovups 0x20-0x80($key),$rndkey + vpclmulqdq \$0x10,$Hkey,$Ii,$T1 + vaesenc $T2,$inout5,$inout5 + + vpclmulqdq \$0x01,$Hkey,$Ii,$T2 + lea ($in0,%r12),$in0 + vaesenc $rndkey,$inout0,$inout0 + vpxor 16+8(%rsp),$Xi,$Xi # modulo-scheduled [vpxor $Z3,$Xi,$Xi] + vpclmulqdq \$0x11,$Hkey,$Ii,$Hkey + vmovdqu 0x40+8(%rsp),$Ii # I[3] + vaesenc $rndkey,$inout1,$inout1 + movbe 0x58($in0),%r13 + vaesenc $rndkey,$inout2,$inout2 + movbe 0x50($in0),%r12 + vaesenc $rndkey,$inout3,$inout3 + mov %r13,0x20+8(%rsp) + vaesenc $rndkey,$inout4,$inout4 + mov %r12,0x28+8(%rsp) + vmovdqu 0x30-0x20($Xip),$Z1 # borrow $Z1 for $Hkey^3 + vaesenc $rndkey,$inout5,$inout5 + + vmovups 0x30-0x80($key),$rndkey + vpxor $T1,$Z2,$Z2 + vpclmulqdq \$0x00,$Z1,$Ii,$T1 + vaesenc $rndkey,$inout0,$inout0 + vpxor $T2,$Z2,$Z2 + vpclmulqdq \$0x10,$Z1,$Ii,$T2 + vaesenc $rndkey,$inout1,$inout1 + vpxor $Hkey,$Z3,$Z3 + vpclmulqdq \$0x01,$Z1,$Ii,$Hkey + vaesenc $rndkey,$inout2,$inout2 + vpclmulqdq \$0x11,$Z1,$Ii,$Z1 + vmovdqu 0x50+8(%rsp),$Ii # I[2] + vaesenc $rndkey,$inout3,$inout3 + vaesenc $rndkey,$inout4,$inout4 + vpxor $T1,$Z0,$Z0 + vmovdqu 0x40-0x20($Xip),$T1 # borrow $T1 for $Hkey^4 + vaesenc $rndkey,$inout5,$inout5 + + vmovups 0x40-0x80($key),$rndkey + vpxor $T2,$Z2,$Z2 + vpclmulqdq \$0x00,$T1,$Ii,$T2 + vaesenc $rndkey,$inout0,$inout0 + vpxor $Hkey,$Z2,$Z2 + vpclmulqdq \$0x10,$T1,$Ii,$Hkey + vaesenc $rndkey,$inout1,$inout1 + movbe 0x48($in0),%r13 + vpxor $Z1,$Z3,$Z3 + vpclmulqdq \$0x01,$T1,$Ii,$Z1 + vaesenc $rndkey,$inout2,$inout2 + movbe 0x40($in0),%r12 + vpclmulqdq \$0x11,$T1,$Ii,$T1 + vmovdqu 0x60+8(%rsp),$Ii # I[1] + vaesenc $rndkey,$inout3,$inout3 + mov %r13,0x30+8(%rsp) + vaesenc $rndkey,$inout4,$inout4 + mov %r12,0x38+8(%rsp) + vpxor $T2,$Z0,$Z0 + vmovdqu 0x60-0x20($Xip),$T2 # borrow $T2 for $Hkey^5 + vaesenc $rndkey,$inout5,$inout5 + + vmovups 0x50-0x80($key),$rndkey + vpxor $Hkey,$Z2,$Z2 + vpclmulqdq \$0x00,$T2,$Ii,$Hkey + vaesenc $rndkey,$inout0,$inout0 + vpxor $Z1,$Z2,$Z2 + vpclmulqdq \$0x10,$T2,$Ii,$Z1 + vaesenc $rndkey,$inout1,$inout1 + movbe 0x38($in0),%r13 + vpxor $T1,$Z3,$Z3 + vpclmulqdq \$0x01,$T2,$Ii,$T1 + vpxor 0x70+8(%rsp),$Xi,$Xi # accumulate I[0] + vaesenc $rndkey,$inout2,$inout2 + movbe 0x30($in0),%r12 + vpclmulqdq \$0x11,$T2,$Ii,$T2 + vaesenc $rndkey,$inout3,$inout3 + mov %r13,0x40+8(%rsp) + vaesenc $rndkey,$inout4,$inout4 + mov %r12,0x48+8(%rsp) + vpxor $Hkey,$Z0,$Z0 + vmovdqu 0x70-0x20($Xip),$Hkey # $Hkey^6 + vaesenc $rndkey,$inout5,$inout5 + + vmovups 0x60-0x80($key),$rndkey + vpxor $Z1,$Z2,$Z2 + vpclmulqdq \$0x10,$Hkey,$Xi,$Z1 + vaesenc $rndkey,$inout0,$inout0 + vpxor $T1,$Z2,$Z2 + vpclmulqdq \$0x01,$Hkey,$Xi,$T1 + vaesenc $rndkey,$inout1,$inout1 + movbe 0x28($in0),%r13 + vpxor $T2,$Z3,$Z3 + vpclmulqdq \$0x00,$Hkey,$Xi,$T2 + vaesenc $rndkey,$inout2,$inout2 + movbe 0x20($in0),%r12 + vpclmulqdq \$0x11,$Hkey,$Xi,$Xi + vaesenc $rndkey,$inout3,$inout3 + mov %r13,0x50+8(%rsp) + vaesenc $rndkey,$inout4,$inout4 + mov %r12,0x58+8(%rsp) + vpxor $Z1,$Z2,$Z2 + vaesenc $rndkey,$inout5,$inout5 + vpxor $T1,$Z2,$Z2 + + vmovups 0x70-0x80($key),$rndkey + vpslldq \$8,$Z2,$Z1 + vpxor $T2,$Z0,$Z0 + vmovdqu 0x10($const),$Hkey # .Lpoly + + vaesenc $rndkey,$inout0,$inout0 + vpxor $Xi,$Z3,$Z3 + vaesenc $rndkey,$inout1,$inout1 + vpxor $Z1,$Z0,$Z0 + movbe 0x18($in0),%r13 + vaesenc $rndkey,$inout2,$inout2 + movbe 0x10($in0),%r12 + vpalignr \$8,$Z0,$Z0,$Ii # 1st phase + vpclmulqdq \$0x10,$Hkey,$Z0,$Z0 + mov %r13,0x60+8(%rsp) + vaesenc $rndkey,$inout3,$inout3 + mov %r12,0x68+8(%rsp) + vaesenc $rndkey,$inout4,$inout4 + vmovups 0x80-0x80($key),$T1 # borrow $T1 for $rndkey + vaesenc $rndkey,$inout5,$inout5 + + vaesenc $T1,$inout0,$inout0 + vmovups 0x90-0x80($key),$rndkey + vaesenc $T1,$inout1,$inout1 + vpsrldq \$8,$Z2,$Z2 + vaesenc $T1,$inout2,$inout2 + vpxor $Z2,$Z3,$Z3 + vaesenc $T1,$inout3,$inout3 + vpxor $Ii,$Z0,$Z0 + movbe 0x08($in0),%r13 + vaesenc $T1,$inout4,$inout4 + movbe 0x00($in0),%r12 + vaesenc $T1,$inout5,$inout5 + vmovups 0xa0-0x80($key),$T1 + cmp \$11,$rounds + jb .Lenc_tail # 128-bit key + + vaesenc $rndkey,$inout0,$inout0 + vaesenc $rndkey,$inout1,$inout1 + vaesenc $rndkey,$inout2,$inout2 + vaesenc $rndkey,$inout3,$inout3 + vaesenc $rndkey,$inout4,$inout4 + vaesenc $rndkey,$inout5,$inout5 + + vaesenc $T1,$inout0,$inout0 + vaesenc $T1,$inout1,$inout1 + vaesenc $T1,$inout2,$inout2 + vaesenc $T1,$inout3,$inout3 + vaesenc $T1,$inout4,$inout4 + vmovups 0xb0-0x80($key),$rndkey + vaesenc $T1,$inout5,$inout5 + vmovups 0xc0-0x80($key),$T1 + je .Lenc_tail # 192-bit key + + vaesenc $rndkey,$inout0,$inout0 + vaesenc $rndkey,$inout1,$inout1 + vaesenc $rndkey,$inout2,$inout2 + vaesenc $rndkey,$inout3,$inout3 + vaesenc $rndkey,$inout4,$inout4 + vaesenc $rndkey,$inout5,$inout5 + + vaesenc $T1,$inout0,$inout0 + vaesenc $T1,$inout1,$inout1 + vaesenc $T1,$inout2,$inout2 + vaesenc $T1,$inout3,$inout3 + vaesenc $T1,$inout4,$inout4 + vmovups 0xd0-0x80($key),$rndkey + vaesenc $T1,$inout5,$inout5 + vmovups 0xe0-0x80($key),$T1 + jmp .Lenc_tail # 256-bit key + +.align 32 +.Lhandle_ctr32: + vmovdqu ($const),$Ii # borrow $Ii for .Lbswap_mask + vpshufb $Ii,$T1,$Z2 # byte-swap counter + vmovdqu 0x30($const),$Z1 # borrow $Z1, .Ltwo_lsb + vpaddd 0x40($const),$Z2,$inout1 # .Lone_lsb + vpaddd $Z1,$Z2,$inout2 + vmovdqu 0x00-0x20($Xip),$Hkey # $Hkey^1 + vpaddd $Z1,$inout1,$inout3 + vpshufb $Ii,$inout1,$inout1 + vpaddd $Z1,$inout2,$inout4 + vpshufb $Ii,$inout2,$inout2 + vpxor $rndkey,$inout1,$inout1 + vpaddd $Z1,$inout3,$inout5 + vpshufb $Ii,$inout3,$inout3 + vpxor $rndkey,$inout2,$inout2 + vpaddd $Z1,$inout4,$T1 # byte-swapped next counter value + vpshufb $Ii,$inout4,$inout4 + vpshufb $Ii,$inout5,$inout5 + vpshufb $Ii,$T1,$T1 # next counter value + jmp .Lresume_ctr32 + +.align 32 +.Lenc_tail: + vaesenc $rndkey,$inout0,$inout0 + vmovdqu $Z3,16+8(%rsp) # postpone vpxor $Z3,$Xi,$Xi + vpalignr \$8,$Z0,$Z0,$Xi # 2nd phase + vaesenc $rndkey,$inout1,$inout1 + vpclmulqdq \$0x10,$Hkey,$Z0,$Z0 + vpxor 0x00($inp),$T1,$T2 + vaesenc $rndkey,$inout2,$inout2 + vpxor 0x10($inp),$T1,$Ii + vaesenc $rndkey,$inout3,$inout3 + vpxor 0x20($inp),$T1,$Z1 + vaesenc $rndkey,$inout4,$inout4 + vpxor 0x30($inp),$T1,$Z2 + vaesenc $rndkey,$inout5,$inout5 + vpxor 0x40($inp),$T1,$Z3 + vpxor 0x50($inp),$T1,$Hkey + vmovdqu ($ivp),$T1 # load next counter value + + vaesenclast $T2,$inout0,$inout0 + vmovdqu 0x20($const),$T2 # borrow $T2, .Lone_msb + vaesenclast $Ii,$inout1,$inout1 + vpaddb $T2,$T1,$Ii + mov %r13,0x70+8(%rsp) + lea 0x60($inp),$inp + vaesenclast $Z1,$inout2,$inout2 + vpaddb $T2,$Ii,$Z1 + mov %r12,0x78+8(%rsp) + lea 0x60($out),$out + vmovdqu 0x00-0x80($key),$rndkey + vaesenclast $Z2,$inout3,$inout3 + vpaddb $T2,$Z1,$Z2 + vaesenclast $Z3, $inout4,$inout4 + vpaddb $T2,$Z2,$Z3 + vaesenclast $Hkey,$inout5,$inout5 + vpaddb $T2,$Z3,$Hkey + + add \$0x60,$ret + sub \$0x6,$len + jc .L6x_done + + vmovups $inout0,-0x60($out) # save output + vpxor $rndkey,$T1,$inout0 + vmovups $inout1,-0x50($out) + vmovdqa $Ii,$inout1 # 0 latency + vmovups $inout2,-0x40($out) + vmovdqa $Z1,$inout2 # 0 latency + vmovups $inout3,-0x30($out) + vmovdqa $Z2,$inout3 # 0 latency + vmovups $inout4,-0x20($out) + vmovdqa $Z3,$inout4 # 0 latency + vmovups $inout5,-0x10($out) + vmovdqa $Hkey,$inout5 # 0 latency + vmovdqu 0x20+8(%rsp),$Z3 # I[5] + jmp .Loop6x + +.L6x_done: + vpxor 16+8(%rsp),$Xi,$Xi # modulo-scheduled + vpxor $Z0,$Xi,$Xi # modulo-scheduled + + ret +.size _aesni_ctr32_ghash_6x,.-_aesni_ctr32_ghash_6x +___ +###################################################################### +# +# size_t aesni_gcm_[en|de]crypt(const void *inp, void *out, size_t len, +# const AES_KEY *key, unsigned char iv[16], +# struct { u128 Xi,H,Htbl[9]; } *Xip); +$code.=<<___; +.globl aesni_gcm_decrypt +.type aesni_gcm_decrypt,\@function,6 +.align 32 +aesni_gcm_decrypt: + xor $ret,$ret + cmp \$0x60,$len # minimal accepted length + jb .Lgcm_dec_abort + + lea (%rsp),%rax # save stack pointer + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 +___ +$code.=<<___ if ($win64); + lea -0xa8(%rsp),%rsp + movaps %xmm6,-0xd8(%rax) + movaps %xmm7,-0xc8(%rax) + movaps %xmm8,-0xb8(%rax) + movaps %xmm9,-0xa8(%rax) + movaps %xmm10,-0x98(%rax) + movaps %xmm11,-0x88(%rax) + movaps %xmm12,-0x78(%rax) + movaps %xmm13,-0x68(%rax) + movaps %xmm14,-0x58(%rax) + movaps %xmm15,-0x48(%rax) +.Lgcm_dec_body: +___ +$code.=<<___; + vzeroupper + + vmovdqu ($ivp),$T1 # input counter value + sub \$128,%rsp + mov 12($ivp),$counter + lea .Lbswap_mask(%rip),$const + vmovdqu ($Xip),$Xi # load Xi + and \$-64,%rsp # ensure stack alignment + vmovdqu ($const),$Ii # borrow $Ii for .Lbswap_mask + lea 0x80($key),$key # size optimization + lea 0x20+0x20($Xip),$Xip # size optimization + mov 0xf0-0x80($key),$rounds + vpshufb $Ii,$Xi,$Xi + + vmovdqu 0x50($inp),$Z3 # I[5] + lea ($inp),$in0 + vmovdqu 0x40($inp),$Z0 + lea -0xc0($inp,$len),$end0 + vmovdqu 0x30($inp),$Z1 + shr \$4,$len + xor $ret,$ret + vmovdqu 0x20($inp),$Z2 + vpshufb $Ii,$Z3,$Z3 # passed to _aesni_ctr32_ghash_6x + vmovdqu 0x10($inp),$T2 + vpshufb $Ii,$Z0,$Z0 + vmovdqu ($inp),$Hkey + vpshufb $Ii,$Z1,$Z1 + vmovdqu $Z0,0x30(%rsp) + vpshufb $Ii,$Z2,$Z2 + vmovdqu $Z1,0x40(%rsp) + vpshufb $Ii,$T2,$T2 + vmovdqu $Z2,0x50(%rsp) + vpshufb $Ii,$Hkey,$Hkey + vmovdqu $T2,0x60(%rsp) + vmovdqu $Hkey,0x70(%rsp) + + call _aesni_ctr32_ghash_6x + + vmovups $inout0,-0x60($out) # save output + vmovups $inout1,-0x50($out) + vmovups $inout2,-0x40($out) + vmovups $inout3,-0x30($out) + vmovups $inout4,-0x20($out) + vmovups $inout5,-0x10($out) + + vpshufb ($const),$Xi,$Xi # .Lbswap_mask + vmovdqu $Xi,-0x40($Xip) # output Xi + + vzeroupper +___ +$code.=<<___ if ($win64); + movaps -0xd8(%rax),%xmm6 + movaps -0xd8(%rax),%xmm7 + movaps -0xb8(%rax),%xmm8 + movaps -0xa8(%rax),%xmm9 + movaps -0x98(%rax),%xmm10 + movaps -0x88(%rax),%xmm11 + movaps -0x78(%rax),%xmm12 + movaps -0x68(%rax),%xmm13 + movaps -0x58(%rax),%xmm14 + movaps -0x48(%rax),%xmm15 +___ +$code.=<<___; + mov -48(%rax),%r15 + mov -40(%rax),%r14 + mov -32(%rax),%r13 + mov -24(%rax),%r12 + mov -16(%rax),%rbp + mov -8(%rax),%rbx + lea (%rax),%rsp # restore %rsp +.Lgcm_dec_abort: + mov $ret,%rax # return value + ret +.size aesni_gcm_decrypt,.-aesni_gcm_decrypt +___ + +$code.=<<___; +.type _aesni_ctr32_6x,\@abi-omnipotent +.align 32 +_aesni_ctr32_6x: + vmovdqu 0x00-0x80($key),$Z0 # borrow $Z0 for $rndkey + vmovdqu 0x20($const),$T2 # borrow $T2, .Lone_msb + lea -1($rounds),%r13 + vmovups 0x10-0x80($key),$rndkey + lea 0x20-0x80($key),%r12 + vpxor $Z0,$T1,$inout0 + add \$6<<24,$counter + jc .Lhandle_ctr32_2 + vpaddb $T2,$T1,$inout1 + vpaddb $T2,$inout1,$inout2 + vpxor $Z0,$inout1,$inout1 + vpaddb $T2,$inout2,$inout3 + vpxor $Z0,$inout2,$inout2 + vpaddb $T2,$inout3,$inout4 + vpxor $Z0,$inout3,$inout3 + vpaddb $T2,$inout4,$inout5 + vpxor $Z0,$inout4,$inout4 + vpaddb $T2,$inout5,$T1 + vpxor $Z0,$inout5,$inout5 + jmp .Loop_ctr32 + +.align 16 +.Loop_ctr32: + vaesenc $rndkey,$inout0,$inout0 + vaesenc $rndkey,$inout1,$inout1 + vaesenc $rndkey,$inout2,$inout2 + vaesenc $rndkey,$inout3,$inout3 + vaesenc $rndkey,$inout4,$inout4 + vaesenc $rndkey,$inout5,$inout5 + vmovups (%r12),$rndkey + lea 0x10(%r12),%r12 + dec %r13d + jnz .Loop_ctr32 + + vmovdqu (%r12),$Hkey # last round key + vaesenc $rndkey,$inout0,$inout0 + vpxor 0x00($inp),$Hkey,$Z0 + vaesenc $rndkey,$inout1,$inout1 + vpxor 0x10($inp),$Hkey,$Z1 + vaesenc $rndkey,$inout2,$inout2 + vpxor 0x20($inp),$Hkey,$Z2 + vaesenc $rndkey,$inout3,$inout3 + vpxor 0x30($inp),$Hkey,$Xi + vaesenc $rndkey,$inout4,$inout4 + vpxor 0x40($inp),$Hkey,$T2 + vaesenc $rndkey,$inout5,$inout5 + vpxor 0x50($inp),$Hkey,$Hkey + lea 0x60($inp),$inp + + vaesenclast $Z0,$inout0,$inout0 + vaesenclast $Z1,$inout1,$inout1 + vaesenclast $Z2,$inout2,$inout2 + vaesenclast $Xi,$inout3,$inout3 + vaesenclast $T2,$inout4,$inout4 + vaesenclast $Hkey,$inout5,$inout5 + vmovups $inout0,0x00($out) + vmovups $inout1,0x10($out) + vmovups $inout2,0x20($out) + vmovups $inout3,0x30($out) + vmovups $inout4,0x40($out) + vmovups $inout5,0x50($out) + lea 0x60($out),$out + + ret +.align 32 +.Lhandle_ctr32_2: + vpshufb $Ii,$T1,$Z2 # byte-swap counter + vmovdqu 0x30($const),$Z1 # borrow $Z1, .Ltwo_lsb + vpaddd 0x40($const),$Z2,$inout1 # .Lone_lsb + vpaddd $Z1,$Z2,$inout2 + vpaddd $Z1,$inout1,$inout3 + vpshufb $Ii,$inout1,$inout1 + vpaddd $Z1,$inout2,$inout4 + vpshufb $Ii,$inout2,$inout2 + vpxor $Z0,$inout1,$inout1 + vpaddd $Z1,$inout3,$inout5 + vpshufb $Ii,$inout3,$inout3 + vpxor $Z0,$inout2,$inout2 + vpaddd $Z1,$inout4,$T1 # byte-swapped next counter value + vpshufb $Ii,$inout4,$inout4 + vpxor $Z0,$inout3,$inout3 + vpshufb $Ii,$inout5,$inout5 + vpxor $Z0,$inout4,$inout4 + vpshufb $Ii,$T1,$T1 # next counter value + vpxor $Z0,$inout5,$inout5 + jmp .Loop_ctr32 +.size _aesni_ctr32_6x,.-_aesni_ctr32_6x + +.globl aesni_gcm_encrypt +.type aesni_gcm_encrypt,\@function,6 +.align 32 +aesni_gcm_encrypt: + xor $ret,$ret + cmp \$0x60*3,$len # minimal accepted length + jb .Lgcm_enc_abort + + lea (%rsp),%rax # save stack pointer + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 +___ +$code.=<<___ if ($win64); + lea -0xa8(%rsp),%rsp + movaps %xmm6,-0xd8(%rax) + movaps %xmm7,-0xc8(%rax) + movaps %xmm8,-0xb8(%rax) + movaps %xmm9,-0xa8(%rax) + movaps %xmm10,-0x98(%rax) + movaps %xmm11,-0x88(%rax) + movaps %xmm12,-0x78(%rax) + movaps %xmm13,-0x68(%rax) + movaps %xmm14,-0x58(%rax) + movaps %xmm15,-0x48(%rax) +.Lgcm_enc_body: +___ +$code.=<<___; + vzeroupper + + vmovdqu ($ivp),$T1 # input counter value + sub \$128,%rsp + mov 12($ivp),$counter + lea .Lbswap_mask(%rip),$const + lea 0x80($key),$key # size optimization + vmovdqu ($const),$Ii # borrow $Ii for .Lbswap_mask + and \$-64,%rsp # ensure stack alignment + mov 0xf0-0x80($key),$rounds + + lea ($out),$in0 + lea -0xc0($out,$len),$end0 + shr \$4,$len + + call _aesni_ctr32_6x + vpshufb $Ii,$inout0,$Xi # save bswapped output on stack + vpshufb $Ii,$inout1,$T2 + vmovdqu $Xi,0x70(%rsp) + vpshufb $Ii,$inout2,$Z0 + vmovdqu $T2,0x60(%rsp) + vpshufb $Ii,$inout3,$Z1 + vmovdqu $Z0,0x50(%rsp) + vpshufb $Ii,$inout4,$Z2 + vmovdqu $Z1,0x40(%rsp) + vpshufb $Ii,$inout5,$Z3 # passed to _aesni_ctr32_ghash_6x + vmovdqu $Z2,0x30(%rsp) + + call _aesni_ctr32_6x + + vmovdqu ($Xip),$Xi # load Xi + lea 0x20+0x20($Xip),$Xip # size optimization + sub \$12,$len + mov \$0x60*2,$ret + vpshufb $Ii,$Xi,$Xi + + call _aesni_ctr32_ghash_6x + vmovdqu 0x20(%rsp),$Z3 # I[5] + vmovdqu ($const),$Ii # borrow $Ii for .Lbswap_mask + vmovdqu 0x00-0x20($Xip),$Hkey # $Hkey^1 + vpunpckhqdq $Z3,$Z3,$T1 + vmovdqu 0x20-0x20($Xip),$rndkey # borrow $rndkey for $HK + vmovups $inout0,-0x60($out) # save output + vpshufb $Ii,$inout0,$inout0 # but keep bswapped copy + vpxor $Z3,$T1,$T1 + vmovups $inout1,-0x50($out) + vpshufb $Ii,$inout1,$inout1 + vmovups $inout2,-0x40($out) + vpshufb $Ii,$inout2,$inout2 + vmovups $inout3,-0x30($out) + vpshufb $Ii,$inout3,$inout3 + vmovups $inout4,-0x20($out) + vpshufb $Ii,$inout4,$inout4 + vmovups $inout5,-0x10($out) + vpshufb $Ii,$inout5,$inout5 + vmovdqu $inout0,0x10(%rsp) # free $inout0 +___ +{ my ($HK,$T3)=($rndkey,$inout0); + +$code.=<<___; + vmovdqu 0x30(%rsp),$Z2 # I[4] + vmovdqu 0x10-0x20($Xip),$Ii # borrow $Ii for $Hkey^2 + vpunpckhqdq $Z2,$Z2,$T2 + vpclmulqdq \$0x00,$Hkey,$Z3,$Z1 + vpxor $Z2,$T2,$T2 + vpclmulqdq \$0x11,$Hkey,$Z3,$Z3 + vpclmulqdq \$0x00,$HK,$T1,$T1 + + vmovdqu 0x40(%rsp),$T3 # I[3] + vpclmulqdq \$0x00,$Ii,$Z2,$Z0 + vmovdqu 0x30-0x20($Xip),$Hkey # $Hkey^3 + vpxor $Z1,$Z0,$Z0 + vpunpckhqdq $T3,$T3,$Z1 + vpclmulqdq \$0x11,$Ii,$Z2,$Z2 + vpxor $T3,$Z1,$Z1 + vpxor $Z3,$Z2,$Z2 + vpclmulqdq \$0x10,$HK,$T2,$T2 + vmovdqu 0x50-0x20($Xip),$HK + vpxor $T1,$T2,$T2 + + vmovdqu 0x50(%rsp),$T1 # I[2] + vpclmulqdq \$0x00,$Hkey,$T3,$Z3 + vmovdqu 0x40-0x20($Xip),$Ii # borrow $Ii for $Hkey^4 + vpxor $Z0,$Z3,$Z3 + vpunpckhqdq $T1,$T1,$Z0 + vpclmulqdq \$0x11,$Hkey,$T3,$T3 + vpxor $T1,$Z0,$Z0 + vpxor $Z2,$T3,$T3 + vpclmulqdq \$0x00,$HK,$Z1,$Z1 + vpxor $T2,$Z1,$Z1 + + vmovdqu 0x60(%rsp),$T2 # I[1] + vpclmulqdq \$0x00,$Ii,$T1,$Z2 + vmovdqu 0x60-0x20($Xip),$Hkey # $Hkey^5 + vpxor $Z3,$Z2,$Z2 + vpunpckhqdq $T2,$T2,$Z3 + vpclmulqdq \$0x11,$Ii,$T1,$T1 + vpxor $T2,$Z3,$Z3 + vpxor $T3,$T1,$T1 + vpclmulqdq \$0x10,$HK,$Z0,$Z0 + vmovdqu 0x80-0x20($Xip),$HK + vpxor $Z1,$Z0,$Z0 + + vpxor 0x70(%rsp),$Xi,$Xi # accumulate I[0] + vpclmulqdq \$0x00,$Hkey,$T2,$Z1 + vmovdqu 0x70-0x20($Xip),$Ii # borrow $Ii for $Hkey^6 + vpunpckhqdq $Xi,$Xi,$T3 + vpxor $Z2,$Z1,$Z1 + vpclmulqdq \$0x11,$Hkey,$T2,$T2 + vpxor $Xi,$T3,$T3 + vpxor $T1,$T2,$T2 + vpclmulqdq \$0x00,$HK,$Z3,$Z3 + vpxor $Z0,$Z3,$Z0 + + vpclmulqdq \$0x00,$Ii,$Xi,$Z2 + vmovdqu 0x00-0x20($Xip),$Hkey # $Hkey^1 + vpunpckhqdq $inout5,$inout5,$T1 + vpclmulqdq \$0x11,$Ii,$Xi,$Xi + vpxor $inout5,$T1,$T1 + vpxor $Z1,$Z2,$Z1 + vpclmulqdq \$0x10,$HK,$T3,$T3 + vmovdqu 0x20-0x20($Xip),$HK + vpxor $T2,$Xi,$Z3 + vpxor $Z0,$T3,$Z2 + + vmovdqu 0x10-0x20($Xip),$Ii # borrow $Ii for $Hkey^2 + vpxor $Z1,$Z3,$T3 # aggregated Karatsuba post-processing + vpclmulqdq \$0x00,$Hkey,$inout5,$Z0 + vpxor $T3,$Z2,$Z2 + vpunpckhqdq $inout4,$inout4,$T2 + vpclmulqdq \$0x11,$Hkey,$inout5,$inout5 + vpxor $inout4,$T2,$T2 + vpslldq \$8,$Z2,$T3 + vpclmulqdq \$0x00,$HK,$T1,$T1 + vpxor $T3,$Z1,$Xi + vpsrldq \$8,$Z2,$Z2 + vpxor $Z2,$Z3,$Z3 + + vpclmulqdq \$0x00,$Ii,$inout4,$Z1 + vmovdqu 0x30-0x20($Xip),$Hkey # $Hkey^3 + vpxor $Z0,$Z1,$Z1 + vpunpckhqdq $inout3,$inout3,$T3 + vpclmulqdq \$0x11,$Ii,$inout4,$inout4 + vpxor $inout3,$T3,$T3 + vpxor $inout5,$inout4,$inout4 + vpalignr \$8,$Xi,$Xi,$inout5 # 1st phase + vpclmulqdq \$0x10,$HK,$T2,$T2 + vmovdqu 0x50-0x20($Xip),$HK + vpxor $T1,$T2,$T2 + + vpclmulqdq \$0x00,$Hkey,$inout3,$Z0 + vmovdqu 0x40-0x20($Xip),$Ii # borrow $Ii for $Hkey^4 + vpxor $Z1,$Z0,$Z0 + vpunpckhqdq $inout2,$inout2,$T1 + vpclmulqdq \$0x11,$Hkey,$inout3,$inout3 + vpxor $inout2,$T1,$T1 + vpxor $inout4,$inout3,$inout3 + vxorps 0x10(%rsp),$Z3,$Z3 # accumulate $inout0 + vpclmulqdq \$0x00,$HK,$T3,$T3 + vpxor $T2,$T3,$T3 + + vpclmulqdq \$0x10,0x10($const),$Xi,$Xi + vxorps $inout5,$Xi,$Xi + + vpclmulqdq \$0x00,$Ii,$inout2,$Z1 + vmovdqu 0x60-0x20($Xip),$Hkey # $Hkey^5 + vpxor $Z0,$Z1,$Z1 + vpunpckhqdq $inout1,$inout1,$T2 + vpclmulqdq \$0x11,$Ii,$inout2,$inout2 + vpxor $inout1,$T2,$T2 + vpalignr \$8,$Xi,$Xi,$inout5 # 2nd phase + vpxor $inout3,$inout2,$inout2 + vpclmulqdq \$0x10,$HK,$T1,$T1 + vmovdqu 0x80-0x20($Xip),$HK + vpxor $T3,$T1,$T1 + + vxorps $Z3,$inout5,$inout5 + vpclmulqdq \$0x10,0x10($const),$Xi,$Xi + vxorps $inout5,$Xi,$Xi + + vpclmulqdq \$0x00,$Hkey,$inout1,$Z0 + vmovdqu 0x70-0x20($Xip),$Ii # borrow $Ii for $Hkey^6 + vpxor $Z1,$Z0,$Z0 + vpunpckhqdq $Xi,$Xi,$T3 + vpclmulqdq \$0x11,$Hkey,$inout1,$inout1 + vpxor $Xi,$T3,$T3 + vpxor $inout2,$inout1,$inout1 + vpclmulqdq \$0x00,$HK,$T2,$T2 + vpxor $T1,$T2,$T2 + + vpclmulqdq \$0x00,$Ii,$Xi,$Z1 + vpclmulqdq \$0x11,$Ii,$Xi,$Z3 + vpxor $Z0,$Z1,$Z1 + vpclmulqdq \$0x10,$HK,$T3,$Z2 + vpxor $inout1,$Z3,$Z3 + vpxor $T2,$Z2,$Z2 + + vpxor $Z1,$Z3,$Z0 # aggregated Karatsuba post-processing + vpxor $Z0,$Z2,$Z2 + vpslldq \$8,$Z2,$T1 + vmovdqu 0x10($const),$Hkey # .Lpoly + vpsrldq \$8,$Z2,$Z2 + vpxor $T1,$Z1,$Xi + vpxor $Z2,$Z3,$Z3 + + vpalignr \$8,$Xi,$Xi,$T2 # 1st phase + vpclmulqdq \$0x10,$Hkey,$Xi,$Xi + vpxor $T2,$Xi,$Xi + + vpalignr \$8,$Xi,$Xi,$T2 # 2nd phase + vpclmulqdq \$0x10,$Hkey,$Xi,$Xi + vpxor $Z3,$T2,$T2 + vpxor $T2,$Xi,$Xi +___ +} +$code.=<<___; + vpshufb ($const),$Xi,$Xi # .Lbswap_mask + vmovdqu $Xi,-0x40($Xip) # output Xi + + vzeroupper +___ +$code.=<<___ if ($win64); + movaps -0xd8(%rax),%xmm6 + movaps -0xc8(%rax),%xmm7 + movaps -0xb8(%rax),%xmm8 + movaps -0xa8(%rax),%xmm9 + movaps -0x98(%rax),%xmm10 + movaps -0x88(%rax),%xmm11 + movaps -0x78(%rax),%xmm12 + movaps -0x68(%rax),%xmm13 + movaps -0x58(%rax),%xmm14 + movaps -0x48(%rax),%xmm15 +___ +$code.=<<___; + mov -48(%rax),%r15 + mov -40(%rax),%r14 + mov -32(%rax),%r13 + mov -24(%rax),%r12 + mov -16(%rax),%rbp + mov -8(%rax),%rbx + lea (%rax),%rsp # restore %rsp +.Lgcm_enc_abort: + mov $ret,%rax # return value + ret +.size aesni_gcm_encrypt,.-aesni_gcm_encrypt +___ + +$code.=<<___; +.align 64 +.Lbswap_mask: + .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 +.Lpoly: + .byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2 +.Lone_msb: + .byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 +.Ltwo_lsb: + .byte 2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 +.Lone_lsb: + .byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 +.asciz "AES-NI GCM module for x86_64, CRYPTOGAMS by " +.align 64 +___ +if ($win64) { +$rec="%rcx"; +$frame="%rdx"; +$context="%r8"; +$disp="%r9"; + +$code.=<<___ +.extern __imp_RtlVirtualUnwind +.type gcm_se_handler,\@abi-omnipotent +.align 16 +gcm_se_handler: + push %rsi + push %rdi + push %rbx + push %rbp + push %r12 + push %r13 + push %r14 + push %r15 + pushfq + sub \$64,%rsp + + mov 120($context),%rax # pull context->Rax + mov 248($context),%rbx # pull context->Rip + + mov 8($disp),%rsi # disp->ImageBase + mov 56($disp),%r11 # disp->HandlerData + + mov 0(%r11),%r10d # HandlerData[0] + lea (%rsi,%r10),%r10 # prologue label + cmp %r10,%rbx # context->RipRsp + + mov 4(%r11),%r10d # HandlerData[1] + lea (%rsi,%r10),%r10 # epilogue label + cmp %r10,%rbx # context->Rip>=epilogue label + jae .Lcommon_seh_tail + + mov 120($context),%rax # pull context->Rax + + mov -48(%rax),%r15 + mov -40(%rax),%r14 + mov -32(%rax),%r13 + mov -24(%rax),%r12 + mov -16(%rax),%rbp + mov -8(%rax),%rbx + mov %r15,240($context) + mov %r14,232($context) + mov %r13,224($context) + mov %r12,216($context) + mov %rbp,160($context) + mov %rbx,144($context) + + lea -0xd8(%rax),%rsi # %xmm save area + lea 512($context),%rdi # & context.Xmm6 + mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) + .long 0xa548f3fc # cld; rep movsq + +.Lcommon_seh_tail: + mov 8(%rax),%rdi + mov 16(%rax),%rsi + mov %rax,152($context) # restore context->Rsp + mov %rsi,168($context) # restore context->Rsi + mov %rdi,176($context) # restore context->Rdi + + mov 40($disp),%rdi # disp->ContextRecord + mov $context,%rsi # context + mov \$154,%ecx # sizeof(CONTEXT) + .long 0xa548f3fc # cld; rep movsq + + mov $disp,%rsi + xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER + mov 8(%rsi),%rdx # arg2, disp->ImageBase + mov 0(%rsi),%r8 # arg3, disp->ControlPc + mov 16(%rsi),%r9 # arg4, disp->FunctionEntry + mov 40(%rsi),%r10 # disp->ContextRecord + lea 56(%rsi),%r11 # &disp->HandlerData + lea 24(%rsi),%r12 # &disp->EstablisherFrame + mov %r10,32(%rsp) # arg5 + mov %r11,40(%rsp) # arg6 + mov %r12,48(%rsp) # arg7 + mov %rcx,56(%rsp) # arg8, (NULL) + call *__imp_RtlVirtualUnwind(%rip) + + mov \$1,%eax # ExceptionContinueSearch + add \$64,%rsp + popfq + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbp + pop %rbx + pop %rdi + pop %rsi + ret +.size gcm_se_handler,.-gcm_se_handler + +.section .pdata +.align 4 + .rva .LSEH_begin_aesni_gcm_decrypt + .rva .LSEH_end_aesni_gcm_decrypt + .rva .LSEH_gcm_dec_info + + .rva .LSEH_begin_aesni_gcm_encrypt + .rva .LSEH_end_aesni_gcm_encrypt + .rva .LSEH_gcm_enc_info +.section .xdata +.align 8 +.LSEH_gcm_dec_info: + .byte 9,0,0,0 + .rva gcm_se_handler + .rva .Lgcm_dec_body,.Lgcm_dec_abort +.LSEH_gcm_enc_info: + .byte 9,0,0,0 + .rva gcm_se_handler + .rva .Lgcm_enc_body,.Lgcm_enc_abort +___ +} +}}} else {{{ +$code=<<___; # assembler is too old +.text + +.globl aesni_gcm_encrypt +.type aesni_gcm_encrypt,\@abi-omnipotent +aesni_gcm_encrypt: + xor %eax,%eax + ret +.size aesni_gcm_encrypt,.-aesni_gcm_encrypt + +.globl aesni_gcm_decrypt +.type aesni_gcm_decrypt,\@abi-omnipotent +aesni_gcm_decrypt: + xor %eax,%eax + ret +.size aesni_gcm_decrypt,.-aesni_gcm_decrypt +___ +}}} + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +print $code; + +close STDOUT; -- GitLab