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update x86 and aes support checks at compile time

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Signed-off-by: r4sas <r4sas@i2pmail.org>
This commit is contained in:
r4sas 2023-08-10 14:01:03 +00:00
parent ebe9fd90af
commit 9d3d35c71c
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GPG key ID: 66F6C87B98EBCFE2
3 changed files with 172 additions and 160 deletions
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2
libi2pd/CPU.cpp
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@ -25,7 +25,7 @@ namespace cpu
inline bool cpu_support_aes()
{
#if (_M_AMD64 || __x86_64__) || (_M_IX86 || __i386__)
#if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__))
#if defined(_MSC_VER)
int cpu_info[4];
__cpuid(cpu_info, 1);

2
libi2pd/Config.cpp
View file

@ -193,7 +193,7 @@ namespace config {
options_description precomputation("Precomputation options");
precomputation.add_options()
("precomputation.elgamal",
#if defined(__x86_64__)
#if (_M_AMD64 || __x86_64__)
value<bool>()->default_value(false),
#else
value<bool>()->default_value(true),

58
libi2pd/Crypto.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2022, The PurpleI2P Project
* Copyright (c) 2013-2023, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -28,6 +28,12 @@
#include "I2PEndian.h"
#include "Log.h"
#if defined(__AES__) && !defined(_MSC_VER) && ((defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__)))
#define SUPPORTS_AES 1
#else
#define SUPPORTS_AES 0
#endif
namespace i2p
{
namespace crypto
@ -361,7 +367,7 @@ namespace crypto
BIGNUM * b1 = BN_CTX_get (ctx);
BIGNUM * b = BN_CTX_get (ctx);
// select random k
#if defined(__x86_64__)
#if (defined(_M_AMD64) || defined(__x86_64__))
BN_rand (k, ELGAMAL_FULL_EXPONENT_NUM_BITS, -1, 1); // full exponent for x64
#else
BN_rand (k, ELGAMAL_SHORT_EXPONENT_NUM_BITS, -1, 1); // short exponent of 226 bits
@ -428,7 +434,7 @@ namespace crypto
void GenerateElGamalKeyPair (uint8_t * priv, uint8_t * pub)
{
#if defined(__x86_64__) || defined(__i386__) || defined(_MSC_VER)
#if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__)) || defined(_MSC_VER)
RAND_bytes (priv, 256);
#else
// lower 226 bits (28 bytes and 2 bits) only. short exponent
@ -555,7 +561,7 @@ namespace crypto
}
// AES
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
#define KeyExpansion256(round0,round1) \
"pshufd $0xff, %%xmm2, %%xmm2 \n" \
"movaps %%xmm1, %%xmm4 \n" \
@ -580,7 +586,7 @@ namespace crypto
"movaps %%xmm3, "#round1"(%[sched]) \n"
#endif
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
void ECBCryptoAESNI::ExpandKey (const AESKey& key)
{
__asm__
@ -621,7 +627,7 @@ namespace crypto
#endif
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
#define EncryptAES256(sched) \
"pxor (%["#sched"]), %%xmm0 \n" \
"aesenc 16(%["#sched"]), %%xmm0 \n" \
@ -642,7 +648,7 @@ namespace crypto
void ECBEncryption::Encrypt (const ChipherBlock * in, ChipherBlock * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -650,7 +656,9 @@ namespace crypto
"movups (%[in]), %%xmm0 \n"
EncryptAES256(sched)
"movups %%xmm0, (%[out]) \n"
: : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory"
:
: [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out)
: "%xmm0", "memory"
);
}
else
@ -660,7 +668,7 @@ namespace crypto
}
}
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
#define DecryptAES256(sched) \
"pxor 224(%["#sched"]), %%xmm0 \n" \
"aesdec 208(%["#sched"]), %%xmm0 \n" \
@ -681,7 +689,7 @@ namespace crypto
void ECBDecryption::Decrypt (const ChipherBlock * in, ChipherBlock * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -689,7 +697,9 @@ namespace crypto
"movups (%[in]), %%xmm0 \n"
DecryptAES256(sched)
"movups %%xmm0, (%[out]) \n"
: : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory"
:
: [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out)
: "%xmm0", "memory"
);
}
else
@ -699,7 +709,7 @@ namespace crypto
}
}
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
#define CallAESIMC(offset) \
"movaps "#offset"(%[shed]), %%xmm0 \n" \
"aesimc %%xmm0, %%xmm0 \n" \
@ -708,7 +718,7 @@ namespace crypto
void ECBEncryption::SetKey (const AESKey& key)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
ExpandKey (key);
@ -722,7 +732,7 @@ namespace crypto
void ECBDecryption::SetKey (const AESKey& key)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
ExpandKey (key); // expand encryption key first
@ -742,7 +752,9 @@ namespace crypto
CallAESIMC(176)
CallAESIMC(192)
CallAESIMC(208)
: : [shed]"r"(GetKeySchedule ()) : "%xmm0", "memory"
:
: [shed]"r"(GetKeySchedule ())
: "%xmm0", "memory"
);
}
else
@ -754,7 +766,7 @@ namespace crypto
void CBCEncryption::Encrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -799,7 +811,7 @@ namespace crypto
void CBCEncryption::Encrypt (const uint8_t * in, uint8_t * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -823,7 +835,7 @@ namespace crypto
void CBCDecryption::Decrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -869,7 +881,7 @@ namespace crypto
void CBCDecryption::Decrypt (const uint8_t * in, uint8_t * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -893,7 +905,7 @@ namespace crypto
void TunnelEncryption::Encrypt (const uint8_t * in, uint8_t * out)
{
#if defined(__AES__) && (defined(__x86_64__) || defined(__i386__))
#if SUPPORTS_AES
if(i2p::cpu::aesni)
{
__asm__
@ -934,7 +946,7 @@ 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__
@ -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