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authormadmaxoft <github@xoft.cz>2014-01-22 22:26:40 +0100
committermadmaxoft <github@xoft.cz>2014-01-22 22:26:40 +0100
commit34f13d589a2ebbcae9230732c7a763b3cdd88b41 (patch)
tree4f7bad4f90ca8f7a896d83951804f0207082cafb /lib/cryptopp/rijndael.cpp
parentReplacing CryptoPP with PolarSSL. (diff)
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Diffstat (limited to 'lib/cryptopp/rijndael.cpp')
-rw-r--r--lib/cryptopp/rijndael.cpp1261
1 files changed, 0 insertions, 1261 deletions
diff --git a/lib/cryptopp/rijndael.cpp b/lib/cryptopp/rijndael.cpp
deleted file mode 100644
index c185032cf..000000000
--- a/lib/cryptopp/rijndael.cpp
+++ /dev/null
@@ -1,1261 +0,0 @@
-// rijndael.cpp - modified by Chris Morgan <cmorgan@wpi.edu>
-// and Wei Dai from Paulo Baretto's Rijndael implementation
-// The original code and all modifications are in the public domain.
-
-// use "cl /EP /P /DCRYPTOPP_GENERATE_X64_MASM rijndael.cpp" to generate MASM code
-
-/*
-July 2010: Added support for AES-NI instructions via compiler intrinsics.
-*/
-
-/*
-Feb 2009: The x86/x64 assembly code was rewritten in by Wei Dai to do counter mode
-caching, which was invented by Hongjun Wu and popularized by Daniel J. Bernstein
-and Peter Schwabe in their paper "New AES software speed records". The round
-function was also modified to include a trick similar to one in Brian Gladman's
-x86 assembly code, doing an 8-bit register move to minimize the number of
-register spills. Also switched to compressed tables and copying round keys to
-the stack.
-
-The C++ implementation now uses compressed tables if
-CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS is defined.
-*/
-
-/*
-July 2006: Defense against timing attacks was added in by Wei Dai.
-
-The code now uses smaller tables in the first and last rounds,
-and preloads them into L1 cache before usage (by loading at least
-one element in each cache line).
-
-We try to delay subsequent accesses to each table (used in the first
-and last rounds) until all of the table has been preloaded. Hopefully
-the compiler isn't smart enough to optimize that code away.
-
-After preloading the table, we also try not to access any memory location
-other than the table and the stack, in order to prevent table entries from
-being unloaded from L1 cache, until that round is finished.
-(Some popular CPUs have 2-way associative caches.)
-*/
-
-// This is the original introductory comment:
-
-/**
- * version 3.0 (December 2000)
- *
- * Optimised ANSI C code for the Rijndael cipher (now AES)
- *
- * author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
- * author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
- * author Paulo Barreto <paulo.barreto@terra.com.br>
- *
- * This code is hereby placed in the public domain.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-#ifndef CRYPTOPP_GENERATE_X64_MASM
-
-#include "rijndael.h"
-#include "misc.h"
-#include "cpu.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
-namespace rdtable {CRYPTOPP_ALIGN_DATA(16) word64 Te[256+2];}
-using namespace rdtable;
-#else
-static word64 Te[256];
-#endif
-static word64 Td[256];
-#else
-static word32 Te[256*4], Td[256*4];
-#endif
-static volatile bool s_TeFilled = false, s_TdFilled = false;
-
-// ************************* Portable Code ************************************
-
-#define QUARTER_ROUND(L, T, t, a, b, c, d) \
- a ^= L(T, 3, byte(t)); t >>= 8;\
- b ^= L(T, 2, byte(t)); t >>= 8;\
- c ^= L(T, 1, byte(t)); t >>= 8;\
- d ^= L(T, 0, t);
-
-#define QUARTER_ROUND_LE(t, a, b, c, d) \
- tempBlock[a] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
- tempBlock[b] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
- tempBlock[c] = ((byte *)(Te+byte(t)))[1]; t >>= 8;\
- tempBlock[d] = ((byte *)(Te+t))[1];
-
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- #define QUARTER_ROUND_LD(t, a, b, c, d) \
- tempBlock[a] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
- tempBlock[b] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
- tempBlock[c] = ((byte *)(Td+byte(t)))[GetNativeByteOrder()*7]; t >>= 8;\
- tempBlock[d] = ((byte *)(Td+t))[GetNativeByteOrder()*7];
-#else
- #define QUARTER_ROUND_LD(t, a, b, c, d) \
- tempBlock[a] = Sd[byte(t)]; t >>= 8;\
- tempBlock[b] = Sd[byte(t)]; t >>= 8;\
- tempBlock[c] = Sd[byte(t)]; t >>= 8;\
- tempBlock[d] = Sd[t];
-#endif
-
-#define QUARTER_ROUND_E(t, a, b, c, d) QUARTER_ROUND(TL_M, Te, t, a, b, c, d)
-#define QUARTER_ROUND_D(t, a, b, c, d) QUARTER_ROUND(TL_M, Td, t, a, b, c, d)
-
-#ifdef IS_LITTLE_ENDIAN
- #define QUARTER_ROUND_FE(t, a, b, c, d) QUARTER_ROUND(TL_F, Te, t, d, c, b, a)
- #define QUARTER_ROUND_FD(t, a, b, c, d) QUARTER_ROUND(TL_F, Td, t, d, c, b, a)
- #ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- #define TL_F(T, i, x) (*(word32 *)((byte *)T + x*8 + (6-i)%4+1))
- #define TL_M(T, i, x) (*(word32 *)((byte *)T + x*8 + (i+3)%4+1))
- #else
- #define TL_F(T, i, x) rotrFixed(T[x], (3-i)*8)
- #define TL_M(T, i, x) T[i*256 + x]
- #endif
-#else
- #define QUARTER_ROUND_FE(t, a, b, c, d) QUARTER_ROUND(TL_F, Te, t, a, b, c, d)
- #define QUARTER_ROUND_FD(t, a, b, c, d) QUARTER_ROUND(TL_F, Td, t, a, b, c, d)
- #ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- #define TL_F(T, i, x) (*(word32 *)((byte *)T + x*8 + (4-i)%4))
- #define TL_M TL_F
- #else
- #define TL_F(T, i, x) rotrFixed(T[x], i*8)
- #define TL_M(T, i, x) T[i*256 + x]
- #endif
-#endif
-
-
-#define f2(x) ((x<<1)^(((x>>7)&1)*0x11b))
-#define f4(x) ((x<<2)^(((x>>6)&1)*0x11b)^(((x>>6)&2)*0x11b))
-#define f8(x) ((x<<3)^(((x>>5)&1)*0x11b)^(((x>>5)&2)*0x11b)^(((x>>5)&4)*0x11b))
-
-#define f3(x) (f2(x) ^ x)
-#define f9(x) (f8(x) ^ x)
-#define fb(x) (f8(x) ^ f2(x) ^ x)
-#define fd(x) (f8(x) ^ f4(x) ^ x)
-#define fe(x) (f8(x) ^ f4(x) ^ f2(x))
-
-void Rijndael::Base::FillEncTable()
-{
- for (int i=0; i<256; i++)
- {
- byte x = Se[i];
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- word32 y = word32(x)<<8 | word32(x)<<16 | word32(f2(x))<<24;
- Te[i] = word64(y | f3(x))<<32 | y;
-#else
- word32 y = f3(x) | word32(x)<<8 | word32(x)<<16 | word32(f2(x))<<24;
- for (int j=0; j<4; j++)
- {
- Te[i+j*256] = y;
- y = rotrFixed(y, 8);
- }
-#endif
- }
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
- Te[256] = Te[257] = 0;
-#endif
- s_TeFilled = true;
-}
-
-void Rijndael::Base::FillDecTable()
-{
- for (int i=0; i<256; i++)
- {
- byte x = Sd[i];
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- word32 y = word32(fd(x))<<8 | word32(f9(x))<<16 | word32(fe(x))<<24;
- Td[i] = word64(y | fb(x))<<32 | y | x;
-#else
- word32 y = fb(x) | word32(fd(x))<<8 | word32(f9(x))<<16 | word32(fe(x))<<24;;
- for (int j=0; j<4; j++)
- {
- Td[i+j*256] = y;
- y = rotrFixed(y, 8);
- }
-#endif
- }
- s_TdFilled = true;
-}
-
-void Rijndael::Base::UncheckedSetKey(const byte *userKey, unsigned int keylen, const NameValuePairs &)
-{
- AssertValidKeyLength(keylen);
-
- m_rounds = keylen/4 + 6;
- m_key.New(4*(m_rounds+1));
-
- word32 *rk = m_key;
-
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE && (!defined(_MSC_VER) || _MSC_VER >= 1600 || CRYPTOPP_BOOL_X86)
- // MSVC 2008 SP1 generates bad code for _mm_extract_epi32() when compiling for X64
- if (HasAESNI())
- {
- static const word32 rcLE[] = {
- 0x01, 0x02, 0x04, 0x08,
- 0x10, 0x20, 0x40, 0x80,
- 0x1B, 0x36, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
- };
- const word32 *rc = rcLE;
-
- __m128i temp = _mm_loadu_si128((__m128i *)(userKey+keylen-16));
- memcpy(rk, userKey, keylen);
-
- while (true)
- {
- rk[keylen/4] = rk[0] ^ _mm_extract_epi32(_mm_aeskeygenassist_si128(temp, 0), 3) ^ *(rc++);
- rk[keylen/4+1] = rk[1] ^ rk[keylen/4];
- rk[keylen/4+2] = rk[2] ^ rk[keylen/4+1];
- rk[keylen/4+3] = rk[3] ^ rk[keylen/4+2];
-
- if (rk + keylen/4 + 4 == m_key.end())
- break;
-
- if (keylen == 24)
- {
- rk[10] = rk[ 4] ^ rk[ 9];
- rk[11] = rk[ 5] ^ rk[10];
- temp = _mm_insert_epi32(temp, rk[11], 3);
- }
- else if (keylen == 32)
- {
- temp = _mm_insert_epi32(temp, rk[11], 3);
- rk[12] = rk[ 4] ^ _mm_extract_epi32(_mm_aeskeygenassist_si128(temp, 0), 2);
- rk[13] = rk[ 5] ^ rk[12];
- rk[14] = rk[ 6] ^ rk[13];
- rk[15] = rk[ 7] ^ rk[14];
- temp = _mm_insert_epi32(temp, rk[15], 3);
- }
- else
- temp = _mm_insert_epi32(temp, rk[7], 3);
-
- rk += keylen/4;
- }
-
- if (!IsForwardTransformation())
- {
- rk = m_key;
- unsigned int i, j;
-
- std::swap(*(__m128i *)(rk), *(__m128i *)(rk+4*m_rounds));
-
- for (i = 4, j = 4*m_rounds-4; i < j; i += 4, j -= 4)
- {
- temp = _mm_aesimc_si128(*(__m128i *)(rk+i));
- *(__m128i *)(rk+i) = _mm_aesimc_si128(*(__m128i *)(rk+j));
- *(__m128i *)(rk+j) = temp;
- }
-
- *(__m128i *)(rk+i) = _mm_aesimc_si128(*(__m128i *)(rk+i));
- }
-
- return;
- }
-#endif
-
- GetUserKey(BIG_ENDIAN_ORDER, rk, keylen/4, userKey, keylen);
- const word32 *rc = rcon;
- word32 temp;
-
- while (true)
- {
- temp = rk[keylen/4-1];
- word32 x = (word32(Se[GETBYTE(temp, 2)]) << 24) ^ (word32(Se[GETBYTE(temp, 1)]) << 16) ^ (word32(Se[GETBYTE(temp, 0)]) << 8) ^ Se[GETBYTE(temp, 3)];
- rk[keylen/4] = rk[0] ^ x ^ *(rc++);
- rk[keylen/4+1] = rk[1] ^ rk[keylen/4];
- rk[keylen/4+2] = rk[2] ^ rk[keylen/4+1];
- rk[keylen/4+3] = rk[3] ^ rk[keylen/4+2];
-
- if (rk + keylen/4 + 4 == m_key.end())
- break;
-
- if (keylen == 24)
- {
- rk[10] = rk[ 4] ^ rk[ 9];
- rk[11] = rk[ 5] ^ rk[10];
- }
- else if (keylen == 32)
- {
- temp = rk[11];
- rk[12] = rk[ 4] ^ (word32(Se[GETBYTE(temp, 3)]) << 24) ^ (word32(Se[GETBYTE(temp, 2)]) << 16) ^ (word32(Se[GETBYTE(temp, 1)]) << 8) ^ Se[GETBYTE(temp, 0)];
- rk[13] = rk[ 5] ^ rk[12];
- rk[14] = rk[ 6] ^ rk[13];
- rk[15] = rk[ 7] ^ rk[14];
- }
- rk += keylen/4;
- }
-
- rk = m_key;
-
- if (IsForwardTransformation())
- {
- if (!s_TeFilled)
- FillEncTable();
-
- ConditionalByteReverse(BIG_ENDIAN_ORDER, rk, rk, 16);
- ConditionalByteReverse(BIG_ENDIAN_ORDER, rk + m_rounds*4, rk + m_rounds*4, 16);
- }
- else
- {
- if (!s_TdFilled)
- FillDecTable();
-
- unsigned int i, j;
-
-#define InverseMixColumn(x) TL_M(Td, 0, Se[GETBYTE(x, 3)]) ^ TL_M(Td, 1, Se[GETBYTE(x, 2)]) ^ TL_M(Td, 2, Se[GETBYTE(x, 1)]) ^ TL_M(Td, 3, Se[GETBYTE(x, 0)])
-
- for (i = 4, j = 4*m_rounds-4; i < j; i += 4, j -= 4)
- {
- temp = InverseMixColumn(rk[i ]); rk[i ] = InverseMixColumn(rk[j ]); rk[j ] = temp;
- temp = InverseMixColumn(rk[i + 1]); rk[i + 1] = InverseMixColumn(rk[j + 1]); rk[j + 1] = temp;
- temp = InverseMixColumn(rk[i + 2]); rk[i + 2] = InverseMixColumn(rk[j + 2]); rk[j + 2] = temp;
- temp = InverseMixColumn(rk[i + 3]); rk[i + 3] = InverseMixColumn(rk[j + 3]); rk[j + 3] = temp;
- }
-
- rk[i+0] = InverseMixColumn(rk[i+0]);
- rk[i+1] = InverseMixColumn(rk[i+1]);
- rk[i+2] = InverseMixColumn(rk[i+2]);
- rk[i+3] = InverseMixColumn(rk[i+3]);
-
- temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[0]); rk[0] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+0]); rk[4*m_rounds+0] = temp;
- temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[1]); rk[1] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+1]); rk[4*m_rounds+1] = temp;
- temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[2]); rk[2] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+2]); rk[4*m_rounds+2] = temp;
- temp = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[3]); rk[3] = ConditionalByteReverse(BIG_ENDIAN_ORDER, rk[4*m_rounds+3]); rk[4*m_rounds+3] = temp;
- }
-
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
- if (HasAESNI())
- ConditionalByteReverse(BIG_ENDIAN_ORDER, rk+4, rk+4, (m_rounds-1)*16);
-#endif
-}
-
-void Rijndael::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
- if (HasSSE2())
-#else
- if (HasAESNI())
-#endif
- {
- Rijndael::Enc::AdvancedProcessBlocks(inBlock, xorBlock, outBlock, 16, 0);
- return;
- }
-#endif
-
- typedef BlockGetAndPut<word32, NativeByteOrder> Block;
-
- word32 s0, s1, s2, s3, t0, t1, t2, t3;
- Block::Get(inBlock)(s0)(s1)(s2)(s3);
-
- const word32 *rk = m_key;
- s0 ^= rk[0];
- s1 ^= rk[1];
- s2 ^= rk[2];
- s3 ^= rk[3];
- t0 = rk[4];
- t1 = rk[5];
- t2 = rk[6];
- t3 = rk[7];
- rk += 8;
-
- // timing attack countermeasure. see comments at top for more details
- const int cacheLineSize = GetCacheLineSize();
- unsigned int i;
- word32 u = 0;
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- for (i=0; i<2048; i+=cacheLineSize)
-#else
- for (i=0; i<1024; i+=cacheLineSize)
-#endif
- u &= *(const word32 *)(((const byte *)Te)+i);
- u &= Te[255];
- s0 |= u; s1 |= u; s2 |= u; s3 |= u;
-
- QUARTER_ROUND_FE(s3, t0, t1, t2, t3)
- QUARTER_ROUND_FE(s2, t3, t0, t1, t2)
- QUARTER_ROUND_FE(s1, t2, t3, t0, t1)
- QUARTER_ROUND_FE(s0, t1, t2, t3, t0)
-
- // Nr - 2 full rounds:
- unsigned int r = m_rounds/2 - 1;
- do
- {
- s0 = rk[0]; s1 = rk[1]; s2 = rk[2]; s3 = rk[3];
-
- QUARTER_ROUND_E(t3, s0, s1, s2, s3)
- QUARTER_ROUND_E(t2, s3, s0, s1, s2)
- QUARTER_ROUND_E(t1, s2, s3, s0, s1)
- QUARTER_ROUND_E(t0, s1, s2, s3, s0)
-
- t0 = rk[4]; t1 = rk[5]; t2 = rk[6]; t3 = rk[7];
-
- QUARTER_ROUND_E(s3, t0, t1, t2, t3)
- QUARTER_ROUND_E(s2, t3, t0, t1, t2)
- QUARTER_ROUND_E(s1, t2, t3, t0, t1)
- QUARTER_ROUND_E(s0, t1, t2, t3, t0)
-
- rk += 8;
- } while (--r);
-
- word32 tbw[4];
- byte *const tempBlock = (byte *)tbw;
-
- QUARTER_ROUND_LE(t2, 15, 2, 5, 8)
- QUARTER_ROUND_LE(t1, 11, 14, 1, 4)
- QUARTER_ROUND_LE(t0, 7, 10, 13, 0)
- QUARTER_ROUND_LE(t3, 3, 6, 9, 12)
-
- Block::Put(xorBlock, outBlock)(tbw[0]^rk[0])(tbw[1]^rk[1])(tbw[2]^rk[2])(tbw[3]^rk[3]);
-}
-
-void Rijndael::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
- if (HasAESNI())
- {
- Rijndael::Dec::AdvancedProcessBlocks(inBlock, xorBlock, outBlock, 16, 0);
- return;
- }
-#endif
-
- typedef BlockGetAndPut<word32, NativeByteOrder> Block;
-
- word32 s0, s1, s2, s3, t0, t1, t2, t3;
- Block::Get(inBlock)(s0)(s1)(s2)(s3);
-
- const word32 *rk = m_key;
- s0 ^= rk[0];
- s1 ^= rk[1];
- s2 ^= rk[2];
- s3 ^= rk[3];
- t0 = rk[4];
- t1 = rk[5];
- t2 = rk[6];
- t3 = rk[7];
- rk += 8;
-
- // timing attack countermeasure. see comments at top for more details
- const int cacheLineSize = GetCacheLineSize();
- unsigned int i;
- word32 u = 0;
-#ifdef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- for (i=0; i<2048; i+=cacheLineSize)
-#else
- for (i=0; i<1024; i+=cacheLineSize)
-#endif
- u &= *(const word32 *)(((const byte *)Td)+i);
- u &= Td[255];
- s0 |= u; s1 |= u; s2 |= u; s3 |= u;
-
- QUARTER_ROUND_FD(s3, t2, t1, t0, t3)
- QUARTER_ROUND_FD(s2, t1, t0, t3, t2)
- QUARTER_ROUND_FD(s1, t0, t3, t2, t1)
- QUARTER_ROUND_FD(s0, t3, t2, t1, t0)
-
- // Nr - 2 full rounds:
- unsigned int r = m_rounds/2 - 1;
- do
- {
- s0 = rk[0]; s1 = rk[1]; s2 = rk[2]; s3 = rk[3];
-
- QUARTER_ROUND_D(t3, s2, s1, s0, s3)
- QUARTER_ROUND_D(t2, s1, s0, s3, s2)
- QUARTER_ROUND_D(t1, s0, s3, s2, s1)
- QUARTER_ROUND_D(t0, s3, s2, s1, s0)
-
- t0 = rk[4]; t1 = rk[5]; t2 = rk[6]; t3 = rk[7];
-
- QUARTER_ROUND_D(s3, t2, t1, t0, t3)
- QUARTER_ROUND_D(s2, t1, t0, t3, t2)
- QUARTER_ROUND_D(s1, t0, t3, t2, t1)
- QUARTER_ROUND_D(s0, t3, t2, t1, t0)
-
- rk += 8;
- } while (--r);
-
-#ifndef CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
- // timing attack countermeasure. see comments at top for more details
- // If CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS is defined,
- // QUARTER_ROUND_LD will use Td, which is already preloaded.
- u = 0;
- for (i=0; i<256; i+=cacheLineSize)
- u &= *(const word32 *)(Sd+i);
- u &= *(const word32 *)(Sd+252);
- t0 |= u; t1 |= u; t2 |= u; t3 |= u;
-#endif
-
- word32 tbw[4];
- byte *const tempBlock = (byte *)tbw;
-
- QUARTER_ROUND_LD(t2, 7, 2, 13, 8)
- QUARTER_ROUND_LD(t1, 3, 14, 9, 4)
- QUARTER_ROUND_LD(t0, 15, 10, 5, 0)
- QUARTER_ROUND_LD(t3, 11, 6, 1, 12)
-
- Block::Put(xorBlock, outBlock)(tbw[0]^rk[0])(tbw[1]^rk[1])(tbw[2]^rk[2])(tbw[3]^rk[3]);
-}
-
-// ************************* Assembly Code ************************************
-
-#pragma warning(disable: 4731) // frame pointer register 'ebp' modified by inline assembly code
-
-#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
-
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
-
-CRYPTOPP_NAKED void CRYPTOPP_FASTCALL Rijndael_Enc_AdvancedProcessBlocks(void *locals, const word32 *k)
-{
-#if CRYPTOPP_BOOL_X86
-
-#define L_REG esp
-#define L_INDEX(i) (L_REG+768+i)
-#define L_INXORBLOCKS L_INBLOCKS+4
-#define L_OUTXORBLOCKS L_INBLOCKS+8
-#define L_OUTBLOCKS L_INBLOCKS+12
-#define L_INCREMENTS L_INDEX(16*15)
-#define L_SP L_INDEX(16*16)
-#define L_LENGTH L_INDEX(16*16+4)
-#define L_KEYS_BEGIN L_INDEX(16*16+8)
-
-#define MOVD movd
-#define MM(i) mm##i
-
-#define MXOR(a,b,c) \
- AS2( movzx esi, b)\
- AS2( movd mm7, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
- AS2( pxor MM(a), mm7)\
-
-#define MMOV(a,b,c) \
- AS2( movzx esi, b)\
- AS2( movd MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
-
-#else
-
-#define L_REG r8
-#define L_INDEX(i) (L_REG+i)
-#define L_INXORBLOCKS L_INBLOCKS+8
-#define L_OUTXORBLOCKS L_INBLOCKS+16
-#define L_OUTBLOCKS L_INBLOCKS+24
-#define L_INCREMENTS L_INDEX(16*16)
-#define L_LENGTH L_INDEX(16*18+8)
-#define L_KEYS_BEGIN L_INDEX(16*19)
-
-#define MOVD mov
-#define MM_0 r9d
-#define MM_1 r12d
-#ifdef __GNUC__
-#define MM_2 r11d
-#else
-#define MM_2 r10d
-#endif
-#define MM(i) MM_##i
-
-#define MXOR(a,b,c) \
- AS2( movzx esi, b)\
- AS2( xor MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
-
-#define MMOV(a,b,c) \
- AS2( movzx esi, b)\
- AS2( mov MM(a), DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
-
-#endif
-
-#define L_SUBKEYS L_INDEX(0)
-#define L_SAVED_X L_SUBKEYS
-#define L_KEY12 L_INDEX(16*12)
-#define L_LASTROUND L_INDEX(16*13)
-#define L_INBLOCKS L_INDEX(16*14)
-#define MAP0TO4(i) (ASM_MOD(i+3,4)+1)
-
-#define XOR(a,b,c) \
- AS2( movzx esi, b)\
- AS2( xor a, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
-
-#define MOV(a,b,c) \
- AS2( movzx esi, b)\
- AS2( mov a, DWORD PTR [AS_REG_7+8*WORD_REG(si)+MAP0TO4(c)])\
-
-#ifdef CRYPTOPP_GENERATE_X64_MASM
- ALIGN 8
- Rijndael_Enc_AdvancedProcessBlocks PROC FRAME
- rex_push_reg rsi
- push_reg rdi
- push_reg rbx
- push_reg r12
- .endprolog
- mov L_REG, rcx
- mov AS_REG_7, ?Te@rdtable@CryptoPP@@3PA_KA
- mov edi, DWORD PTR [?g_cacheLineSize@CryptoPP@@3IA]
-#elif defined(__GNUC__)
- __asm__ __volatile__
- (
- ".intel_syntax noprefix;"
- #if CRYPTOPP_BOOL_X64
- AS2( mov L_REG, rcx)
- #endif
- AS_PUSH_IF86(bx)
- AS_PUSH_IF86(bp)
- AS2( mov AS_REG_7, WORD_REG(si))
-#else
- AS_PUSH_IF86(si)
- AS_PUSH_IF86(di)
- AS_PUSH_IF86(bx)
- AS_PUSH_IF86(bp)
- AS2( lea AS_REG_7, [Te])
- AS2( mov edi, [g_cacheLineSize])
-#endif
-
-#if CRYPTOPP_BOOL_X86
- AS2( mov [ecx+16*12+16*4], esp) // save esp to L_SP
- AS2( lea esp, [ecx-768])
-#endif
-
- // copy subkeys to stack
- AS2( mov WORD_REG(si), [L_KEYS_BEGIN])
- AS2( mov WORD_REG(ax), 16)
- AS2( and WORD_REG(ax), WORD_REG(si))
- AS2( movdqa xmm3, XMMWORD_PTR [WORD_REG(dx)+16+WORD_REG(ax)]) // subkey 1 (non-counter) or 2 (counter)
- AS2( movdqa [L_KEY12], xmm3)
- AS2( lea WORD_REG(ax), [WORD_REG(dx)+WORD_REG(ax)+2*16])
- AS2( sub WORD_REG(ax), WORD_REG(si))
- ASL(0)
- AS2( movdqa xmm0, [WORD_REG(ax)+WORD_REG(si)])
- AS2( movdqa XMMWORD_PTR [L_SUBKEYS+WORD_REG(si)], xmm0)
- AS2( add WORD_REG(si), 16)
- AS2( cmp WORD_REG(si), 16*12)
- ASJ( jl, 0, b)
-
- // read subkeys 0, 1 and last
- AS2( movdqa xmm4, [WORD_REG(ax)+WORD_REG(si)]) // last subkey
- AS2( movdqa xmm1, [WORD_REG(dx)]) // subkey 0
- AS2( MOVD MM(1), [WORD_REG(dx)+4*4]) // 0,1,2,3
- AS2( mov ebx, [WORD_REG(dx)+5*4]) // 4,5,6,7
- AS2( mov ecx, [WORD_REG(dx)+6*4]) // 8,9,10,11
- AS2( mov edx, [WORD_REG(dx)+7*4]) // 12,13,14,15
-
- // load table into cache
- AS2( xor WORD_REG(ax), WORD_REG(ax))
- ASL(9)
- AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
- AS2( add WORD_REG(ax), WORD_REG(di))
- AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
- AS2( add WORD_REG(ax), WORD_REG(di))
- AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
- AS2( add WORD_REG(ax), WORD_REG(di))
- AS2( mov esi, [AS_REG_7+WORD_REG(ax)])
- AS2( add WORD_REG(ax), WORD_REG(di))
- AS2( cmp WORD_REG(ax), 2048)
- ASJ( jl, 9, b)
- AS1( lfence)
-
- AS2( test DWORD PTR [L_LENGTH], 1)
- ASJ( jz, 8, f)
-
- // counter mode one-time setup
- AS2( mov WORD_REG(si), [L_INBLOCKS])
- AS2( movdqu xmm2, [WORD_REG(si)]) // counter
- AS2( pxor xmm2, xmm1)
- AS2( psrldq xmm1, 14)
- AS2( movd eax, xmm1)
- AS2( mov al, BYTE PTR [WORD_REG(si)+15])
- AS2( MOVD MM(2), eax)
-#if CRYPTOPP_BOOL_X86
- AS2( mov eax, 1)
- AS2( movd mm3, eax)
-#endif
-
- // partial first round, in: xmm2(15,14,13,12;11,10,9,8;7,6,5,4;3,2,1,0), out: mm1, ebx, ecx, edx
- AS2( movd eax, xmm2)
- AS2( psrldq xmm2, 4)
- AS2( movd edi, xmm2)
- AS2( psrldq xmm2, 4)
- MXOR( 1, al, 0) // 0
- XOR( edx, ah, 1) // 1
- AS2( shr eax, 16)
- XOR( ecx, al, 2) // 2
- XOR( ebx, ah, 3) // 3
- AS2( mov eax, edi)
- AS2( movd edi, xmm2)
- AS2( psrldq xmm2, 4)
- XOR( ebx, al, 0) // 4
- MXOR( 1, ah, 1) // 5
- AS2( shr eax, 16)
- XOR( edx, al, 2) // 6
- XOR( ecx, ah, 3) // 7
- AS2( mov eax, edi)
- AS2( movd edi, xmm2)
- XOR( ecx, al, 0) // 8
- XOR( ebx, ah, 1) // 9
- AS2( shr eax, 16)
- MXOR( 1, al, 2) // 10
- XOR( edx, ah, 3) // 11
- AS2( mov eax, edi)
- XOR( edx, al, 0) // 12
- XOR( ecx, ah, 1) // 13
- AS2( shr eax, 16)
- XOR( ebx, al, 2) // 14
- AS2( psrldq xmm2, 3)
-
- // partial second round, in: ebx(4,5,6,7), ecx(8,9,10,11), edx(12,13,14,15), out: eax, ebx, edi, mm0
- AS2( mov eax, [L_KEY12+0*4])
- AS2( mov edi, [L_KEY12+2*4])
- AS2( MOVD MM(0), [L_KEY12+3*4])
- MXOR( 0, cl, 3) /* 11 */
- XOR( edi, bl, 3) /* 7 */
- MXOR( 0, bh, 2) /* 6 */
- AS2( shr ebx, 16) /* 4,5 */
- XOR( eax, bl, 1) /* 5 */
- MOV( ebx, bh, 0) /* 4 */
- AS2( xor ebx, [L_KEY12+1*4])
- XOR( eax, ch, 2) /* 10 */
- AS2( shr ecx, 16) /* 8,9 */
- XOR( eax, dl, 3) /* 15 */
- XOR( ebx, dh, 2) /* 14 */
- AS2( shr edx, 16) /* 12,13 */
- XOR( edi, ch, 0) /* 8 */
- XOR( ebx, cl, 1) /* 9 */
- XOR( edi, dl, 1) /* 13 */
- MXOR( 0, dh, 0) /* 12 */
-
- AS2( movd ecx, xmm2)
- AS2( MOVD edx, MM(1))
- AS2( MOVD [L_SAVED_X+3*4], MM(0))
- AS2( mov [L_SAVED_X+0*4], eax)
- AS2( mov [L_SAVED_X+1*4], ebx)
- AS2( mov [L_SAVED_X+2*4], edi)
- ASJ( jmp, 5, f)
-
- ASL(3)
- // non-counter mode per-block setup
- AS2( MOVD MM(1), [L_KEY12+0*4]) // 0,1,2,3
- AS2( mov ebx, [L_KEY12+1*4]) // 4,5,6,7
- AS2( mov ecx, [L_KEY12+2*4]) // 8,9,10,11
- AS2( mov edx, [L_KEY12+3*4]) // 12,13,14,15
- ASL(8)
- AS2( mov WORD_REG(ax), [L_INBLOCKS])
- AS2( movdqu xmm2, [WORD_REG(ax)])
- AS2( mov WORD_REG(si), [L_INXORBLOCKS])
- AS2( movdqu xmm5, [WORD_REG(si)])
- AS2( pxor xmm2, xmm1)
- AS2( pxor xmm2, xmm5)
-
- // first round, in: xmm2(15,14,13,12;11,10,9,8;7,6,5,4;3,2,1,0), out: eax, ebx, ecx, edx
- AS2( movd eax, xmm2)
- AS2( psrldq xmm2, 4)
- AS2( movd edi, xmm2)
- AS2( psrldq xmm2, 4)
- MXOR( 1, al, 0) // 0
- XOR( edx, ah, 1) // 1
- AS2( shr eax, 16)
- XOR( ecx, al, 2) // 2
- XOR( ebx, ah, 3) // 3
- AS2( mov eax, edi)
- AS2( movd edi, xmm2)
- AS2( psrldq xmm2, 4)
- XOR( ebx, al, 0) // 4
- MXOR( 1, ah, 1) // 5
- AS2( shr eax, 16)
- XOR( edx, al, 2) // 6
- XOR( ecx, ah, 3) // 7
- AS2( mov eax, edi)
- AS2( movd edi, xmm2)
- XOR( ecx, al, 0) // 8
- XOR( ebx, ah, 1) // 9
- AS2( shr eax, 16)
- MXOR( 1, al, 2) // 10
- XOR( edx, ah, 3) // 11
- AS2( mov eax, edi)
- XOR( edx, al, 0) // 12
- XOR( ecx, ah, 1) // 13
- AS2( shr eax, 16)
- XOR( ebx, al, 2) // 14
- MXOR( 1, ah, 3) // 15
- AS2( MOVD eax, MM(1))
-
- AS2( add L_REG, [L_KEYS_BEGIN])
- AS2( add L_REG, 4*16)
- ASJ( jmp, 2, f)
-
- ASL(1)
- // counter-mode per-block setup
- AS2( MOVD ecx, MM(2))
- AS2( MOVD edx, MM(1))
- AS2( mov eax, [L_SAVED_X+0*4])
- AS2( mov ebx, [L_SAVED_X+1*4])
- AS2( xor cl, ch)
- AS2( and WORD_REG(cx), 255)
- ASL(5)
-#if CRYPTOPP_BOOL_X86
- AS2( paddb MM(2), mm3)
-#else
- AS2( add MM(2), 1)
-#endif
- // remaining part of second round, in: edx(previous round),esi(keyed counter byte) eax,ebx,[L_SAVED_X+2*4],[L_SAVED_X+3*4], out: eax,ebx,ecx,edx
- AS2( xor edx, DWORD PTR [AS_REG_7+WORD_REG(cx)*8+3])
- XOR( ebx, dl, 3)
- MOV( ecx, dh, 2)
- AS2( shr edx, 16)
- AS2( xor ecx, [L_SAVED_X+2*4])
- XOR( eax, dh, 0)
- MOV( edx, dl, 1)
- AS2( xor edx, [L_SAVED_X+3*4])
-
- AS2( add L_REG, [L_KEYS_BEGIN])
- AS2( add L_REG, 3*16)
- ASJ( jmp, 4, f)
-
-// in: eax(0,1,2,3), ebx(4,5,6,7), ecx(8,9,10,11), edx(12,13,14,15)
-// out: eax, ebx, edi, mm0
-#define ROUND() \
- MXOR( 0, cl, 3) /* 11 */\
- AS2( mov cl, al) /* 8,9,10,3 */\
- XOR( edi, ah, 2) /* 2 */\
- AS2( shr eax, 16) /* 0,1 */\
- XOR( edi, bl, 3) /* 7 */\
- MXOR( 0, bh, 2) /* 6 */\
- AS2( shr ebx, 16) /* 4,5 */\
- MXOR( 0, al, 1) /* 1 */\
- MOV( eax, ah, 0) /* 0 */\
- XOR( eax, bl, 1) /* 5 */\
- MOV( ebx, bh, 0) /* 4 */\
- XOR( eax, ch, 2) /* 10 */\
- XOR( ebx, cl, 3) /* 3 */\
- AS2( shr ecx, 16) /* 8,9 */\
- XOR( eax, dl, 3) /* 15 */\
- XOR( ebx, dh, 2) /* 14 */\
- AS2( shr edx, 16) /* 12,13 */\
- XOR( edi, ch, 0) /* 8 */\
- XOR( ebx, cl, 1) /* 9 */\
- XOR( edi, dl, 1) /* 13 */\
- MXOR( 0, dh, 0) /* 12 */\
-
- ASL(2) // 2-round loop
- AS2( MOVD MM(0), [L_SUBKEYS-4*16+3*4])
- AS2( mov edi, [L_SUBKEYS-4*16+2*4])
- ROUND()
- AS2( mov ecx, edi)
- AS2( xor eax, [L_SUBKEYS-4*16+0*4])
- AS2( xor ebx, [L_SUBKEYS-4*16+1*4])
- AS2( MOVD edx, MM(0))
-
- ASL(4)
- AS2( MOVD MM(0), [L_SUBKEYS-4*16+7*4])
- AS2( mov edi, [L_SUBKEYS-4*16+6*4])
- ROUND()
- AS2( mov ecx, edi)
- AS2( xor eax, [L_SUBKEYS-4*16+4*4])
- AS2( xor ebx, [L_SUBKEYS-4*16+5*4])
- AS2( MOVD edx, MM(0))
-
- AS2( add L_REG, 32)
- AS2( test L_REG, 255)
- ASJ( jnz, 2, b)
- AS2( sub L_REG, 16*16)
-
-#define LAST(a, b, c) \
- AS2( movzx esi, a )\
- AS2( movzx edi, BYTE PTR [AS_REG_7+WORD_REG(si)*8+1] )\
- AS2( movzx esi, b )\
- AS2( xor edi, DWORD PTR [AS_REG_7+WORD_REG(si)*8+0] )\
- AS2( mov WORD PTR [L_LASTROUND+c], di )\
-
- // last round
- LAST(ch, dl, 2)
- LAST(dh, al, 6)
- AS2( shr edx, 16)
- LAST(ah, bl, 10)
- AS2( shr eax, 16)
- LAST(bh, cl, 14)
- AS2( shr ebx, 16)
- LAST(dh, al, 12)
- AS2( shr ecx, 16)
- LAST(ah, bl, 0)
- LAST(bh, cl, 4)
- LAST(ch, dl, 8)
-
- AS2( mov WORD_REG(ax), [L_OUTXORBLOCKS])
- AS2( mov WORD_REG(bx), [L_OUTBLOCKS])
-
- AS2( mov WORD_REG(cx), [L_LENGTH])
- AS2( sub WORD_REG(cx), 16)
-
- AS2( movdqu xmm2, [WORD_REG(ax)])
- AS2( pxor xmm2, xmm4)
-
-#if CRYPTOPP_BOOL_X86
- AS2( movdqa xmm0, [L_INCREMENTS])
- AS2( paddd xmm0, [L_INBLOCKS])
- AS2( movdqa [L_INBLOCKS], xmm0)
-#else
- AS2( movdqa xmm0, [L_INCREMENTS+16])
- AS2( paddq xmm0, [L_INBLOCKS+16])
- AS2( movdqa [L_INBLOCKS+16], xmm0)
-#endif
-
- AS2( pxor xmm2, [L_LASTROUND])
- AS2( movdqu [WORD_REG(bx)], xmm2)
-
- ASJ( jle, 7, f)
- AS2( mov [L_LENGTH], WORD_REG(cx))
- AS2( test WORD_REG(cx), 1)
- ASJ( jnz, 1, b)
-#if CRYPTOPP_BOOL_X64
- AS2( movdqa xmm0, [L_INCREMENTS])
- AS2( paddq xmm0, [L_INBLOCKS])
- AS2( movdqa [L_INBLOCKS], xmm0)
-#endif
- ASJ( jmp, 3, b)
-
- ASL(7)
- // erase keys on stack
- AS2( xorps xmm0, xmm0)
- AS2( lea WORD_REG(ax), [L_SUBKEYS+7*16])
- AS2( movaps [WORD_REG(ax)-7*16], xmm0)
- AS2( movaps [WORD_REG(ax)-6*16], xmm0)
- AS2( movaps [WORD_REG(ax)-5*16], xmm0)
- AS2( movaps [WORD_REG(ax)-4*16], xmm0)
- AS2( movaps [WORD_REG(ax)-3*16], xmm0)
- AS2( movaps [WORD_REG(ax)-2*16], xmm0)
- AS2( movaps [WORD_REG(ax)-1*16], xmm0)
- AS2( movaps [WORD_REG(ax)+0*16], xmm0)
- AS2( movaps [WORD_REG(ax)+1*16], xmm0)
- AS2( movaps [WORD_REG(ax)+2*16], xmm0)
- AS2( movaps [WORD_REG(ax)+3*16], xmm0)
- AS2( movaps [WORD_REG(ax)+4*16], xmm0)
- AS2( movaps [WORD_REG(ax)+5*16], xmm0)
- AS2( movaps [WORD_REG(ax)+6*16], xmm0)
-#if CRYPTOPP_BOOL_X86
- AS2( mov esp, [L_SP])
- AS1( emms)
-#endif
- AS_POP_IF86(bp)
- AS_POP_IF86(bx)
-#if defined(_MSC_VER) && CRYPTOPP_BOOL_X86
- AS_POP_IF86(di)
- AS_POP_IF86(si)
- AS1(ret)
-#endif
-#ifdef CRYPTOPP_GENERATE_X64_MASM
- pop r12
- pop rbx
- pop rdi
- pop rsi
- ret
- Rijndael_Enc_AdvancedProcessBlocks ENDP
-#endif
-#ifdef __GNUC__
- ".att_syntax prefix;"
- :
- : "c" (locals), "d" (k), "S" (Te), "D" (g_cacheLineSize)
- : "memory", "cc", "%eax"
- #if CRYPTOPP_BOOL_X64
- , "%rbx", "%r8", "%r9", "%r10", "%r11", "%r12"
- #endif
- );
-#endif
-}
-
-#endif
-
-#ifndef CRYPTOPP_GENERATE_X64_MASM
-
-#ifdef CRYPTOPP_X64_MASM_AVAILABLE
-extern "C" {
-void Rijndael_Enc_AdvancedProcessBlocks(void *locals, const word32 *k);
-}
-#endif
-
-#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X86
-
-static inline bool AliasedWithTable(const byte *begin, const byte *end)
-{
- size_t s0 = size_t(begin)%4096, s1 = size_t(end)%4096;
- size_t t0 = size_t(Te)%4096, t1 = (size_t(Te)+sizeof(Te))%4096;
- if (t1 > t0)
- return (s0 >= t0 && s0 < t1) || (s1 > t0 && s1 <= t1);
- else
- return (s0 < t1 || s1 <= t1) || (s0 >= t0 || s1 > t0);
-}
-
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
-
-inline void AESNI_Enc_Block(__m128i &block, const __m128i *subkeys, unsigned int rounds)
-{
- block = _mm_xor_si128(block, subkeys[0]);
- for (unsigned int i=1; i<rounds-1; i+=2)
- {
- block = _mm_aesenc_si128(block, subkeys[i]);
- block = _mm_aesenc_si128(block, subkeys[i+1]);
- }
- block = _mm_aesenc_si128(block, subkeys[rounds-1]);
- block = _mm_aesenclast_si128(block, subkeys[rounds]);
-}
-
-inline void AESNI_Enc_4_Blocks(__m128i &block0, __m128i &block1, __m128i &block2, __m128i &block3, const __m128i *subkeys, unsigned int rounds)
-{
- __m128i rk = subkeys[0];
- block0 = _mm_xor_si128(block0, rk);
- block1 = _mm_xor_si128(block1, rk);
- block2 = _mm_xor_si128(block2, rk);
- block3 = _mm_xor_si128(block3, rk);
- for (unsigned int i=1; i<rounds; i++)
- {
- rk = subkeys[i];
- block0 = _mm_aesenc_si128(block0, rk);
- block1 = _mm_aesenc_si128(block1, rk);
- block2 = _mm_aesenc_si128(block2, rk);
- block3 = _mm_aesenc_si128(block3, rk);
- }
- rk = subkeys[rounds];
- block0 = _mm_aesenclast_si128(block0, rk);
- block1 = _mm_aesenclast_si128(block1, rk);
- block2 = _mm_aesenclast_si128(block2, rk);
- block3 = _mm_aesenclast_si128(block3, rk);
-}
-
-inline void AESNI_Dec_Block(__m128i &block, const __m128i *subkeys, unsigned int rounds)
-{
- block = _mm_xor_si128(block, subkeys[0]);
- for (unsigned int i=1; i<rounds-1; i+=2)
- {
- block = _mm_aesdec_si128(block, subkeys[i]);
- block = _mm_aesdec_si128(block, subkeys[i+1]);
- }
- block = _mm_aesdec_si128(block, subkeys[rounds-1]);
- block = _mm_aesdeclast_si128(block, subkeys[rounds]);
-}
-
-inline void AESNI_Dec_4_Blocks(__m128i &block0, __m128i &block1, __m128i &block2, __m128i &block3, const __m128i *subkeys, unsigned int rounds)
-{
- __m128i rk = subkeys[0];
- block0 = _mm_xor_si128(block0, rk);
- block1 = _mm_xor_si128(block1, rk);
- block2 = _mm_xor_si128(block2, rk);
- block3 = _mm_xor_si128(block3, rk);
- for (unsigned int i=1; i<rounds; i++)
- {
- rk = subkeys[i];
- block0 = _mm_aesdec_si128(block0, rk);
- block1 = _mm_aesdec_si128(block1, rk);
- block2 = _mm_aesdec_si128(block2, rk);
- block3 = _mm_aesdec_si128(block3, rk);
- }
- rk = subkeys[rounds];
- block0 = _mm_aesdeclast_si128(block0, rk);
- block1 = _mm_aesdeclast_si128(block1, rk);
- block2 = _mm_aesdeclast_si128(block2, rk);
- block3 = _mm_aesdeclast_si128(block3, rk);
-}
-
-static CRYPTOPP_ALIGN_DATA(16) const word32 s_one[] = {0, 0, 0, 1<<24};
-
-template <typename F1, typename F4>
-inline size_t AESNI_AdvancedProcessBlocks(F1 func1, F4 func4, const __m128i *subkeys, unsigned int rounds, const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
-{
- size_t blockSize = 16;
- size_t inIncrement = (flags & (BlockTransformation::BT_InBlockIsCounter|BlockTransformation::BT_DontIncrementInOutPointers)) ? 0 : blockSize;
- size_t xorIncrement = xorBlocks ? blockSize : 0;
- size_t outIncrement = (flags & BlockTransformation::BT_DontIncrementInOutPointers) ? 0 : blockSize;
-
- if (flags & BlockTransformation::BT_ReverseDirection)
- {
- assert(length % blockSize == 0);
- inBlocks += length - blockSize;
- xorBlocks += length - blockSize;
- outBlocks += length - blockSize;
- inIncrement = 0-inIncrement;
- xorIncrement = 0-xorIncrement;
- outIncrement = 0-outIncrement;
- }
-
- if (flags & BlockTransformation::BT_AllowParallel)
- {
- while (length >= 4*blockSize)
- {
- __m128i block0 = _mm_loadu_si128((const __m128i *)inBlocks), block1, block2, block3;
- if (flags & BlockTransformation::BT_InBlockIsCounter)
- {
- const __m128i be1 = *(const __m128i *)s_one;
- block1 = _mm_add_epi32(block0, be1);
- block2 = _mm_add_epi32(block1, be1);
- block3 = _mm_add_epi32(block2, be1);
- _mm_storeu_si128((__m128i *)inBlocks, _mm_add_epi32(block3, be1));
- }
- else
- {
- inBlocks += inIncrement;
- block1 = _mm_loadu_si128((const __m128i *)inBlocks);
- inBlocks += inIncrement;
- block2 = _mm_loadu_si128((const __m128i *)inBlocks);
- inBlocks += inIncrement;
- block3 = _mm_loadu_si128((const __m128i *)inBlocks);
- inBlocks += inIncrement;
- }
-
- if (flags & BlockTransformation::BT_XorInput)
- {
- block0 = _mm_xor_si128(block0, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block1 = _mm_xor_si128(block1, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block2 = _mm_xor_si128(block2, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block3 = _mm_xor_si128(block3, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- }
-
- func4(block0, block1, block2, block3, subkeys, rounds);
-
- if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
- {
- block0 = _mm_xor_si128(block0, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block1 = _mm_xor_si128(block1, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block2 = _mm_xor_si128(block2, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- block3 = _mm_xor_si128(block3, _mm_loadu_si128((const __m128i *)xorBlocks));
- xorBlocks += xorIncrement;
- }
-
- _mm_storeu_si128((__m128i *)outBlocks, block0);
- outBlocks += outIncrement;
- _mm_storeu_si128((__m128i *)outBlocks, block1);
- outBlocks += outIncrement;
- _mm_storeu_si128((__m128i *)outBlocks, block2);
- outBlocks += outIncrement;
- _mm_storeu_si128((__m128i *)outBlocks, block3);
- outBlocks += outIncrement;
-
- length -= 4*blockSize;
- }
- }
-
- while (length >= blockSize)
- {
- __m128i block = _mm_loadu_si128((const __m128i *)inBlocks);
-
- if (flags & BlockTransformation::BT_XorInput)
- block = _mm_xor_si128(block, _mm_loadu_si128((const __m128i *)xorBlocks));
-
- if (flags & BlockTransformation::BT_InBlockIsCounter)
- const_cast<byte *>(inBlocks)[15]++;
-
- func1(block, subkeys, rounds);
-
- if (xorBlocks && !(flags & BlockTransformation::BT_XorInput))
- block = _mm_xor_si128(block, _mm_loadu_si128((const __m128i *)xorBlocks));
-
- _mm_storeu_si128((__m128i *)outBlocks, block);
-
- inBlocks += inIncrement;
- outBlocks += outIncrement;
- xorBlocks += xorIncrement;
- length -= blockSize;
- }
-
- return length;
-}
-#endif
-
-size_t Rijndael::Enc::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
-{
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
- if (HasAESNI())
- return AESNI_AdvancedProcessBlocks(AESNI_Enc_Block, AESNI_Enc_4_Blocks, (const __m128i *)m_key.begin(), m_rounds, inBlocks, xorBlocks, outBlocks, length, flags);
-#endif
-
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
- if (HasSSE2())
- {
- if (length < BLOCKSIZE)
- return length;
-
- struct Locals
- {
- word32 subkeys[4*12], workspace[8];
- const byte *inBlocks, *inXorBlocks, *outXorBlocks;
- byte *outBlocks;
- size_t inIncrement, inXorIncrement, outXorIncrement, outIncrement;
- size_t regSpill, lengthAndCounterFlag, keysBegin;
- };
-
- size_t increment = BLOCKSIZE;
- const byte* zeros = (byte *)(Te+256);
- byte *space;
-
- do {
- space = (byte *)alloca(255+sizeof(Locals));
- space += (256-(size_t)space%256)%256;
- }
- while (AliasedWithTable(space, space+sizeof(Locals)));
-
- if (flags & BT_ReverseDirection)
- {
- assert(length % BLOCKSIZE == 0);
- inBlocks += length - BLOCKSIZE;
- xorBlocks += length - BLOCKSIZE;
- outBlocks += length - BLOCKSIZE;
- increment = 0-increment;
- }
-
- Locals &locals = *(Locals *)space;
-
- locals.inBlocks = inBlocks;
- locals.inXorBlocks = (flags & BT_XorInput) && xorBlocks ? xorBlocks : zeros;
- locals.outXorBlocks = (flags & BT_XorInput) || !xorBlocks ? zeros : xorBlocks;
- locals.outBlocks = outBlocks;
-
- locals.inIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : increment;
- locals.inXorIncrement = (flags & BT_XorInput) && xorBlocks ? increment : 0;
- locals.outXorIncrement = (flags & BT_XorInput) || !xorBlocks ? 0 : increment;
- locals.outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : increment;
-
- locals.lengthAndCounterFlag = length - (length%16) - bool(flags & BT_InBlockIsCounter);
- int keysToCopy = m_rounds - (flags & BT_InBlockIsCounter ? 3 : 2);
- locals.keysBegin = (12-keysToCopy)*16;
-
- Rijndael_Enc_AdvancedProcessBlocks(&locals, m_key);
- return length % BLOCKSIZE;
- }
-#endif
-
- return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
-}
-
-#endif
-
-#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
-
-size_t Rijndael::Dec::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
-{
- if (HasAESNI())
- return AESNI_AdvancedProcessBlocks(AESNI_Dec_Block, AESNI_Dec_4_Blocks, (const __m128i *)m_key.begin(), m_rounds, inBlocks, xorBlocks, outBlocks, length, flags);
-
- return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
-}
-
-#endif // #if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
-
-NAMESPACE_END
-
-#endif
-#endif