mirror of
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CPU: remove AVX code, switch to __builtin for AES detection (#1959)
* [cpu] remove avx detect and code blocks, try to switch to __builtin * [cpu] use __builtin_* only on x86 systems * [cpu] perform check in separate function * [cpu] set AES definition on MSVC * update x86 and aes support checks at compile time * [cmake] update comment about AES on MSVC
This commit is contained in:
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parent
32c5ff23a6
commit
7b6aa41ca8
11 changed files with 222 additions and 232 deletions
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013-2022, The PurpleI2P Project
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* Copyright (c) 2013-2023, The PurpleI2P Project
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*
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* This file is part of Purple i2pd project and licensed under BSD3
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*
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@ -28,6 +28,12 @@
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#include "I2PEndian.h"
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#include "Log.h"
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#if defined(__AES__) && !defined(_MSC_VER) && ((defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__)))
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#define SUPPORTS_AES 1
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#else
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#define SUPPORTS_AES 0
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#endif
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namespace i2p
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{
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namespace crypto
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@ -361,7 +367,7 @@ namespace crypto
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BIGNUM * b1 = BN_CTX_get (ctx);
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BIGNUM * b = BN_CTX_get (ctx);
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// select random k
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#if defined(__x86_64__)
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#if (defined(_M_AMD64) || defined(__x86_64__))
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BN_rand (k, ELGAMAL_FULL_EXPONENT_NUM_BITS, -1, 1); // full exponent for x64
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#else
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BN_rand (k, ELGAMAL_SHORT_EXPONENT_NUM_BITS, -1, 1); // short exponent of 226 bits
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@ -428,7 +434,7 @@ namespace crypto
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void GenerateElGamalKeyPair (uint8_t * priv, uint8_t * pub)
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{
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#if defined(__x86_64__) || defined(__i386__) || defined(_MSC_VER)
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#if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__)) || defined(_MSC_VER)
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RAND_bytes (priv, 256);
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#else
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// lower 226 bits (28 bytes and 2 bits) only. short exponent
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@ -555,7 +561,7 @@ namespace crypto
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}
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// AES
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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#define KeyExpansion256(round0,round1) \
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"pshufd $0xff, %%xmm2, %%xmm2 \n" \
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"movaps %%xmm1, %%xmm4 \n" \
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@ -580,7 +586,7 @@ namespace crypto
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"movaps %%xmm3, "#round1"(%[sched]) \n"
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#endif
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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void ECBCryptoAESNI::ExpandKey (const AESKey& key)
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{
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__asm__
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@ -621,7 +627,7 @@ namespace crypto
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#endif
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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#define EncryptAES256(sched) \
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"pxor (%["#sched"]), %%xmm0 \n" \
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"aesenc 16(%["#sched"]), %%xmm0 \n" \
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@ -642,16 +648,18 @@ namespace crypto
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void ECBEncryption::Encrypt (const ChipherBlock * in, ChipherBlock * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[in]), %%xmm0 \n"
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EncryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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: : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory"
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);
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(
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"movups (%[in]), %%xmm0 \n"
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EncryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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:
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: [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out)
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: "%xmm0", "memory"
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);
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}
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else
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#endif
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@ -660,7 +668,7 @@ namespace crypto
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}
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}
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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#define DecryptAES256(sched) \
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"pxor 224(%["#sched"]), %%xmm0 \n" \
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"aesdec 208(%["#sched"]), %%xmm0 \n" \
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@ -681,16 +689,18 @@ namespace crypto
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void ECBDecryption::Decrypt (const ChipherBlock * in, ChipherBlock * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[in]), %%xmm0 \n"
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DecryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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: : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory"
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);
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(
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"movups (%[in]), %%xmm0 \n"
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DecryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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:
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: [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out)
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: "%xmm0", "memory"
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);
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}
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else
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#endif
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@ -699,7 +709,7 @@ namespace crypto
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}
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}
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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#define CallAESIMC(offset) \
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"movaps "#offset"(%[shed]), %%xmm0 \n" \
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"aesimc %%xmm0, %%xmm0 \n" \
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@ -708,7 +718,7 @@ namespace crypto
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void ECBEncryption::SetKey (const AESKey& key)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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ExpandKey (key);
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@ -722,28 +732,30 @@ namespace crypto
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void ECBDecryption::SetKey (const AESKey& key)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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ExpandKey (key); // expand encryption key first
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// then invert it using aesimc
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__asm__
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(
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CallAESIMC(16)
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CallAESIMC(32)
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CallAESIMC(48)
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CallAESIMC(64)
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CallAESIMC(80)
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CallAESIMC(96)
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CallAESIMC(112)
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CallAESIMC(128)
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CallAESIMC(144)
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CallAESIMC(160)
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CallAESIMC(176)
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CallAESIMC(192)
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CallAESIMC(208)
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: : [shed]"r"(GetKeySchedule ()) : "%xmm0", "memory"
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);
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(
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CallAESIMC(16)
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CallAESIMC(32)
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CallAESIMC(48)
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CallAESIMC(64)
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CallAESIMC(80)
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CallAESIMC(96)
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CallAESIMC(112)
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CallAESIMC(128)
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CallAESIMC(144)
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CallAESIMC(160)
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CallAESIMC(176)
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CallAESIMC(192)
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CallAESIMC(208)
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:
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: [shed]"r"(GetKeySchedule ())
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: "%xmm0", "memory"
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);
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}
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else
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#endif
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@ -754,28 +766,28 @@ namespace crypto
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void CBCEncryption::Encrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[iv]), %%xmm1 \n"
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"1: \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched)
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"movaps %%xmm0, %%xmm1 \n"
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"movups %%xmm0, (%[out]) \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"dec %[num] \n"
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"jnz 1b \n"
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"movups %%xmm1, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(numBlocks)
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: "%xmm0", "%xmm1", "cc", "memory"
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);
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(
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"movups (%[iv]), %%xmm1 \n"
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"1: \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched)
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"movaps %%xmm0, %%xmm1 \n"
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"movups %%xmm0, (%[out]) \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"dec %[num] \n"
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"jnz 1b \n"
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"movups %%xmm1, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(numBlocks)
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: "%xmm0", "%xmm1", "cc", "memory"
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);
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}
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else
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#endif
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@ -799,22 +811,22 @@ namespace crypto
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void CBCEncryption::Encrypt (const uint8_t * in, uint8_t * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[iv]), %%xmm1 \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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"movups %%xmm0, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out)
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: "%xmm0", "%xmm1", "memory"
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);
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(
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"movups (%[iv]), %%xmm1 \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched)
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"movups %%xmm0, (%[out]) \n"
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"movups %%xmm0, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out)
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: "%xmm0", "%xmm1", "memory"
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);
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}
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else
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#endif
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@ -823,29 +835,29 @@ namespace crypto
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void CBCDecryption::Decrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[iv]), %%xmm1 \n"
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"1: \n"
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"movups (%[in]), %%xmm0 \n"
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"movaps %%xmm0, %%xmm2 \n"
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DecryptAES256(sched)
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"pxor %%xmm1, %%xmm0 \n"
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"movups %%xmm0, (%[out]) \n"
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"movaps %%xmm2, %%xmm1 \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"dec %[num] \n"
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"jnz 1b \n"
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"movups %%xmm1, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(numBlocks)
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: "%xmm0", "%xmm1", "%xmm2", "cc", "memory"
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);
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(
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"movups (%[iv]), %%xmm1 \n"
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"1: \n"
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"movups (%[in]), %%xmm0 \n"
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"movaps %%xmm0, %%xmm2 \n"
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DecryptAES256(sched)
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"pxor %%xmm1, %%xmm0 \n"
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"movups %%xmm0, (%[out]) \n"
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"movaps %%xmm2, %%xmm1 \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"dec %[num] \n"
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"jnz 1b \n"
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"movups %%xmm1, (%[iv]) \n"
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:
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: [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(numBlocks)
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: "%xmm0", "%xmm1", "%xmm2", "cc", "memory"
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);
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}
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else
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#endif
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@ -869,22 +881,22 @@ namespace crypto
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void CBCDecryption::Decrypt (const uint8_t * in, uint8_t * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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"movups (%[iv]), %%xmm1 \n"
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"movups (%[in]), %%xmm0 \n"
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"movups %%xmm0, (%[iv]) \n"
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DecryptAES256(sched)
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"pxor %%xmm1, %%xmm0 \n"
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"movups %%xmm0, (%[out]) \n"
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:
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: [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out)
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: "%xmm0", "%xmm1", "memory"
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);
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(
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"movups (%[iv]), %%xmm1 \n"
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"movups (%[in]), %%xmm0 \n"
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"movups %%xmm0, (%[iv]) \n"
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DecryptAES256(sched)
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"pxor %%xmm1, %%xmm0 \n"
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"movups %%xmm0, (%[out]) \n"
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:
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: [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out)
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: "%xmm0", "%xmm1", "memory"
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);
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}
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else
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#endif
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@ -893,34 +905,34 @@ namespace crypto
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void TunnelEncryption::Encrypt (const uint8_t * in, uint8_t * out)
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{
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#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
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#if SUPPORTS_AES
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if(i2p::cpu::aesni)
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{
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__asm__
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(
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// encrypt IV
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"movups (%[in]), %%xmm0 \n"
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EncryptAES256(sched_iv)
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"movaps %%xmm0, %%xmm1 \n"
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// double IV encryption
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EncryptAES256(sched_iv)
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"movups %%xmm0, (%[out]) \n"
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// encrypt data, IV is xmm1
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"1: \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched_l)
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"movaps %%xmm0, %%xmm1 \n"
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"movups %%xmm0, (%[out]) \n"
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"dec %[num] \n"
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"jnz 1b \n"
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:
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: [sched_iv]"r"(m_IVEncryption.GetKeySchedule ()), [sched_l]"r"(m_LayerEncryption.ECB().GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes
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: "%xmm0", "%xmm1", "cc", "memory"
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);
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(
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// encrypt IV
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"movups (%[in]), %%xmm0 \n"
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EncryptAES256(sched_iv)
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"movaps %%xmm0, %%xmm1 \n"
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// double IV encryption
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EncryptAES256(sched_iv)
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"movups %%xmm0, (%[out]) \n"
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// encrypt data, IV is xmm1
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"1: \n"
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"add $16, %[in] \n"
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"add $16, %[out] \n"
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"movups (%[in]), %%xmm0 \n"
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"pxor %%xmm1, %%xmm0 \n"
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EncryptAES256(sched_l)
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"movaps %%xmm0, %%xmm1 \n"
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"movups %%xmm0, (%[out]) \n"
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"dec %[num] \n"
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"jnz 1b \n"
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:
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: [sched_iv]"r"(m_IVEncryption.GetKeySchedule ()), [sched_l]"r"(m_LayerEncryption.ECB().GetKeySchedule ()),
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[in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes
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: "%xmm0", "%xmm1", "cc", "memory"
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);
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}
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else
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#endif
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@ -934,35 +946,35 @@ namespace crypto
|
|||
|
||||
void TunnelDecryption::Decrypt (const uint8_t * in, uint8_t * out)
|
||||
{
|
||||
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
|
||||
#if SUPPORTS_AES
|
||||
if(i2p::cpu::aesni)
|
||||
{
|
||||
__asm__
|
||||
(
|
||||
// decrypt IV
|
||||
"movups (%[in]), %%xmm0 \n"
|
||||
DecryptAES256(sched_iv)
|
||||
"movaps %%xmm0, %%xmm1 \n"
|
||||
// double IV encryption
|
||||
DecryptAES256(sched_iv)
|
||||
"movups %%xmm0, (%[out]) \n"
|
||||
// decrypt data, IV is xmm1
|
||||
"1: \n"
|
||||
"add $16, %[in] \n"
|
||||
"add $16, %[out] \n"
|
||||
"movups (%[in]), %%xmm0 \n"
|
||||
"movaps %%xmm0, %%xmm2 \n"
|
||||
DecryptAES256(sched_l)
|
||||
"pxor %%xmm1, %%xmm0 \n"
|
||||
"movups %%xmm0, (%[out]) \n"
|
||||
"movaps %%xmm2, %%xmm1 \n"
|
||||
"dec %[num] \n"
|
||||
"jnz 1b \n"
|
||||
:
|
||||
: [sched_iv]"r"(m_IVDecryption.GetKeySchedule ()), [sched_l]"r"(m_LayerDecryption.ECB().GetKeySchedule ()),
|
||||
[in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes
|
||||
: "%xmm0", "%xmm1", "%xmm2", "cc", "memory"
|
||||
);
|
||||
(
|
||||
// decrypt IV
|
||||
"movups (%[in]), %%xmm0 \n"
|
||||
DecryptAES256(sched_iv)
|
||||
"movaps %%xmm0, %%xmm1 \n"
|
||||
// double IV encryption
|
||||
DecryptAES256(sched_iv)
|
||||
"movups %%xmm0, (%[out]) \n"
|
||||
// decrypt data, IV is xmm1
|
||||
"1: \n"
|
||||
"add $16, %[in] \n"
|
||||
"add $16, %[out] \n"
|
||||
"movups (%[in]), %%xmm0 \n"
|
||||
"movaps %%xmm0, %%xmm2 \n"
|
||||
DecryptAES256(sched_l)
|
||||
"pxor %%xmm1, %%xmm0 \n"
|
||||
"movups %%xmm0, (%[out]) \n"
|
||||
"movaps %%xmm2, %%xmm1 \n"
|
||||
"dec %[num] \n"
|
||||
"jnz 1b \n"
|
||||
:
|
||||
: [sched_iv]"r"(m_IVDecryption.GetKeySchedule ()), [sched_l]"r"(m_LayerDecryption.ECB().GetKeySchedule ()),
|
||||
[in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes
|
||||
: "%xmm0", "%xmm1", "%xmm2", "cc", "memory"
|
||||
);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
|
|
@ -1285,9 +1297,9 @@ namespace crypto
|
|||
}
|
||||
}*/
|
||||
|
||||
void InitCrypto (bool precomputation, bool aesni, bool avx, bool force)
|
||||
void InitCrypto (bool precomputation, bool aesni, bool force)
|
||||
{
|
||||
i2p::cpu::Detect (aesni, avx, force);
|
||||
i2p::cpu::Detect (aesni, force);
|
||||
#if LEGACY_OPENSSL
|
||||
SSL_library_init ();
|
||||
#endif
|
||||
|
|
@ -1297,7 +1309,7 @@ namespace crypto
|
|||
CRYPTO_set_locking_callback (OpensslLockingCallback);*/
|
||||
if (precomputation)
|
||||
{
|
||||
#if defined(__x86_64__)
|
||||
#if (defined(_M_AMD64) || defined(__x86_64__))
|
||||
g_ElggTable = new BIGNUM * [ELGAMAL_FULL_EXPONENT_NUM_BYTES][255];
|
||||
PrecalculateElggTable (g_ElggTable, ELGAMAL_FULL_EXPONENT_NUM_BYTES);
|
||||
#else
|
||||
|
|
@ -1312,7 +1324,7 @@ namespace crypto
|
|||
if (g_ElggTable)
|
||||
{
|
||||
DestroyElggTable (g_ElggTable,
|
||||
#if defined(__x86_64__)
|
||||
#if (defined(_M_AMD64) || defined(__x86_64__))
|
||||
ELGAMAL_FULL_EXPONENT_NUM_BYTES
|
||||
#else
|
||||
ELGAMAL_SHORT_EXPONENT_NUM_BYTES
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue