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Diffstat (limited to 'lib/cryptopp/gcm.cpp')
| -rw-r--r-- | lib/cryptopp/gcm.cpp | 828 |
1 files changed, 0 insertions, 828 deletions
diff --git a/lib/cryptopp/gcm.cpp b/lib/cryptopp/gcm.cpp deleted file mode 100644 index 2304f96d8..000000000 --- a/lib/cryptopp/gcm.cpp +++ /dev/null @@ -1,828 +0,0 @@ -// gcm.cpp - written and placed in the public domain by Wei Dai - -// use "cl /EP /P /DCRYPTOPP_GENERATE_X64_MASM gcm.cpp" to generate MASM code - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS -#ifndef CRYPTOPP_GENERATE_X64_MASM - -#include "gcm.h" -#include "cpu.h" - -NAMESPACE_BEGIN(CryptoPP) - -word16 GCM_Base::s_reductionTable[256]; -volatile bool GCM_Base::s_reductionTableInitialized = false; - -void GCM_Base::GCTR::IncrementCounterBy256() -{ - IncrementCounterByOne(m_counterArray+BlockSize()-4, 3); -} - -#if 0 -// preserved for testing -void gcm_gf_mult(const unsigned char *a, const unsigned char *b, unsigned char *c) -{ - word64 Z0=0, Z1=0, V0, V1; - - typedef BlockGetAndPut<word64, BigEndian> Block; - Block::Get(a)(V0)(V1); - - for (int i=0; i<16; i++) - { - for (int j=0x80; j!=0; j>>=1) - { - int x = b[i] & j; - Z0 ^= x ? V0 : 0; - Z1 ^= x ? V1 : 0; - x = (int)V1 & 1; - V1 = (V1>>1) | (V0<<63); - V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0); - } - } - Block::Put(NULL, c)(Z0)(Z1); -} - -__m128i _mm_clmulepi64_si128(const __m128i &a, const __m128i &b, int i) -{ - word64 A[1] = {ByteReverse(((word64*)&a)[i&1])}; - word64 B[1] = {ByteReverse(((word64*)&b)[i>>4])}; - - PolynomialMod2 pa((byte *)A, 8); - PolynomialMod2 pb((byte *)B, 8); - PolynomialMod2 c = pa*pb; - - __m128i output; - for (int i=0; i<16; i++) - ((byte *)&output)[i] = c.GetByte(i); - return output; -} -#endif - -#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE -inline static void SSE2_Xor16(byte *a, const byte *b, const byte *c) -{ -#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE - *(__m128i *)a = _mm_xor_si128(*(__m128i *)b, *(__m128i *)c); -#else - asm ("movdqa %1, %%xmm0; pxor %2, %%xmm0; movdqa %%xmm0, %0;" : "=m" (a[0]) : "m"(b[0]), "m"(c[0])); -#endif -} -#endif - -inline static void Xor16(byte *a, const byte *b, const byte *c) -{ - ((word64 *)a)[0] = ((word64 *)b)[0] ^ ((word64 *)c)[0]; - ((word64 *)a)[1] = ((word64 *)b)[1] ^ ((word64 *)c)[1]; -} - -#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE -static CRYPTOPP_ALIGN_DATA(16) const word64 s_clmulConstants64[] = { - W64LIT(0xe100000000000000), W64LIT(0xc200000000000000), - W64LIT(0x08090a0b0c0d0e0f), W64LIT(0x0001020304050607), - W64LIT(0x0001020304050607), W64LIT(0x08090a0b0c0d0e0f)}; -static const __m128i *s_clmulConstants = (const __m128i *)s_clmulConstants64; -static const unsigned int s_clmulTableSizeInBlocks = 8; - -inline __m128i CLMUL_Reduce(__m128i c0, __m128i c1, __m128i c2, const __m128i &r) -{ - /* - The polynomial to be reduced is c0 * x^128 + c1 * x^64 + c2. c0t below refers to the most - significant half of c0 as a polynomial, which, due to GCM's bit reflection, are in the - rightmost bit positions, and the lowest byte addresses. - - c1 ^= c0t * 0xc200000000000000 - c2t ^= c0t - t = shift (c1t ^ c0b) left 1 bit - c2 ^= t * 0xe100000000000000 - c2t ^= c1b - shift c2 left 1 bit and xor in lowest bit of c1t - */ -#if 0 // MSVC 2010 workaround: see http://connect.microsoft.com/VisualStudio/feedback/details/575301 - c2 = _mm_xor_si128(c2, _mm_move_epi64(c0)); -#else - c1 = _mm_xor_si128(c1, _mm_slli_si128(c0, 8)); -#endif - c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(c0, r, 0x10)); - c0 = _mm_srli_si128(c0, 8); - c0 = _mm_xor_si128(c0, c1); - c0 = _mm_slli_epi64(c0, 1); - c0 = _mm_clmulepi64_si128(c0, r, 0); - c2 = _mm_xor_si128(c2, c0); - c2 = _mm_xor_si128(c2, _mm_srli_si128(c1, 8)); - c1 = _mm_unpacklo_epi64(c1, c2); - c1 = _mm_srli_epi64(c1, 63); - c2 = _mm_slli_epi64(c2, 1); - return _mm_xor_si128(c2, c1); -} - -inline __m128i CLMUL_GF_Mul(const __m128i &x, const __m128i &h, const __m128i &r) -{ - __m128i c0 = _mm_clmulepi64_si128(x,h,0); - __m128i c1 = _mm_xor_si128(_mm_clmulepi64_si128(x,h,1), _mm_clmulepi64_si128(x,h,0x10)); - __m128i c2 = _mm_clmulepi64_si128(x,h,0x11); - - return CLMUL_Reduce(c0, c1, c2, r); -} -#endif - -void GCM_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms) -{ - BlockCipher &blockCipher = AccessBlockCipher(); - blockCipher.SetKey(userKey, keylength, params); - - if (blockCipher.BlockSize() != REQUIRED_BLOCKSIZE) - throw InvalidArgument(AlgorithmName() + ": block size of underlying block cipher is not 16"); - - int tableSize, i, j, k; - -#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE - if (HasCLMUL()) - { - params.GetIntValue(Name::TableSize(), tableSize); // avoid "parameter not used" error - tableSize = s_clmulTableSizeInBlocks * REQUIRED_BLOCKSIZE; - } - else -#endif - { - if (params.GetIntValue(Name::TableSize(), tableSize)) - tableSize = (tableSize >= 64*1024) ? 64*1024 : 2*1024; - else - tableSize = (GetTablesOption() == GCM_64K_Tables) ? 64*1024 : 2*1024; - -#if defined(_MSC_VER) && (_MSC_VER >= 1300 && _MSC_VER < 1400) - // VC 2003 workaround: compiler generates bad code for 64K tables - tableSize = 2*1024; -#endif - } - - m_buffer.resize(3*REQUIRED_BLOCKSIZE + tableSize); - byte *table = MulTable(); - byte *hashKey = HashKey(); - memset(hashKey, 0, REQUIRED_BLOCKSIZE); - blockCipher.ProcessBlock(hashKey); - -#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE - if (HasCLMUL()) - { - const __m128i r = s_clmulConstants[0]; - __m128i h0 = _mm_shuffle_epi8(_mm_load_si128((__m128i *)hashKey), s_clmulConstants[1]); - __m128i h = h0; - - for (i=0; i<tableSize; i+=32) - { - __m128i h1 = CLMUL_GF_Mul(h, h0, r); - _mm_storel_epi64((__m128i *)(table+i), h); - _mm_storeu_si128((__m128i *)(table+i+16), h1); - _mm_storeu_si128((__m128i *)(table+i+8), h); - _mm_storel_epi64((__m128i *)(table+i+8), h1); - h = CLMUL_GF_Mul(h1, h0, r); - } - - return; - } -#endif - - word64 V0, V1; - typedef BlockGetAndPut<word64, BigEndian> Block; - Block::Get(hashKey)(V0)(V1); - - if (tableSize == 64*1024) - { - for (i=0; i<128; i++) - { - k = i%8; - Block::Put(NULL, table+(i/8)*256*16+(size_t(1)<<(11-k)))(V0)(V1); - - int x = (int)V1 & 1; - V1 = (V1>>1) | (V0<<63); - V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0); - } - - for (i=0; i<16; i++) - { - memset(table+i*256*16, 0, 16); -#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE - if (HasSSE2()) - for (j=2; j<=0x80; j*=2) - for (k=1; k<j; k++) - SSE2_Xor16(table+i*256*16+(j+k)*16, table+i*256*16+j*16, table+i*256*16+k*16); - else -#endif - for (j=2; j<=0x80; j*=2) - for (k=1; k<j; k++) - Xor16(table+i*256*16+(j+k)*16, table+i*256*16+j*16, table+i*256*16+k*16); - } - } - else - { - if (!s_reductionTableInitialized) - { - s_reductionTable[0] = 0; - word16 x = 0x01c2; - s_reductionTable[1] = ByteReverse(x); - for (int i=2; i<=0x80; i*=2) - { - x <<= 1; - s_reductionTable[i] = ByteReverse(x); - for (int j=1; j<i; j++) - s_reductionTable[i+j] = s_reductionTable[i] ^ s_reductionTable[j]; - } - s_reductionTableInitialized = true; - } - - for (i=0; i<128-24; i++) - { - k = i%32; - if (k < 4) - Block::Put(NULL, table+1024+(i/32)*256+(size_t(1)<<(7-k)))(V0)(V1); - else if (k < 8) - Block::Put(NULL, table+(i/32)*256+(size_t(1)<<(11-k)))(V0)(V1); - - int x = (int)V1 & 1; - V1 = (V1>>1) | (V0<<63); - V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0); - } - - for (i=0; i<4; i++) - { - memset(table+i*256, 0, 16); - memset(table+1024+i*256, 0, 16); -#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE - if (HasSSE2()) - for (j=2; j<=8; j*=2) - for (k=1; k<j; k++) - { - SSE2_Xor16(table+i*256+(j+k)*16, table+i*256+j*16, table+i*256+k*16); - SSE2_Xor16(table+1024+i*256+(j+k)*16, table+1024+i*256+j*16, table+1024+i*256+k*16); - } - else -#endif - for (j=2; j<=8; j*=2) - for (k=1; k<j; k++) - { - Xor16(table+i*256+(j+k)*16, table+i*256+j*16, table+i*256+k*16); - Xor16(table+1024+i*256+(j+k)*16, table+1024+i*256+j*16, table+1024+i*256+k*16); - } - } - } -} - -inline void GCM_Base::ReverseHashBufferIfNeeded() -{ -#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE - if (HasCLMUL()) - { - __m128i &x = *(__m128i *)HashBuffer(); - x = _mm_shuffle_epi8(x, s_clmulConstants[1]); - } -#endif -} - -void GCM_Base::Resync(const byte *iv, size_t len) -{ - BlockCipher &cipher = AccessBlockCipher(); - byte *hashBuffer = HashBuffer(); - - if (len == 12) - { - memcpy(hashBuffer, iv, len); - memset(hashBuffer+len, 0, 3); - hashBuffer[len+3] = 1; - } - else - { - size_t origLen = len; - memset(hashBuffer, 0, HASH_BLOCKSIZE); - - if (len >= HASH_BLOCKSIZE) - { - len = GCM_Base::AuthenticateBlocks(iv, len); - iv += (origLen - len); - } - - if (len > 0) - { - memcpy(m_buffer, iv, len); - memset(m_buffer+len, 0, HASH_BLOCKSIZE-len); - GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE); - } - - PutBlock<word64, BigEndian, true>(NULL, m_buffer)(0)(origLen*8); - GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE); - - ReverseHashBufferIfNeeded(); - } - - if (m_state >= State_IVSet) - m_ctr.Resynchronize(hashBuffer, REQUIRED_BLOCKSIZE); - else - m_ctr.SetCipherWithIV(cipher, hashBuffer); - - m_ctr.Seek(HASH_BLOCKSIZE); - - memset(hashBuffer, 0, HASH_BLOCKSIZE); -} - -unsigned int GCM_Base::OptimalDataAlignment() const -{ - return -#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE) - HasSSE2() ? 16 : -#endif - GetBlockCipher().OptimalDataAlignment(); -} - -#pragma warning(disable: 4731) // frame pointer register 'ebp' modified by inline assembly code - -#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM - -#ifdef CRYPTOPP_X64_MASM_AVAILABLE -extern "C" { -void GCM_AuthenticateBlocks_2K(const byte *data, size_t blocks, word64 *hashBuffer, const word16 *reductionTable); -void GCM_AuthenticateBlocks_64K(const byte *data, size_t blocks, word64 *hashBuffer); -} -#endif - -#ifndef CRYPTOPP_GENERATE_X64_MASM - -size_t GCM_Base::AuthenticateBlocks(const byte *data, size_t len) -{ -#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE - if (HasCLMUL()) - { - const __m128i *table = (const __m128i *)MulTable(); - __m128i x = _mm_load_si128((__m128i *)HashBuffer()); - const __m128i r = s_clmulConstants[0], bswapMask = s_clmulConstants[1], bswapMask2 = s_clmulConstants[2]; - - while (len >= 16) - { - size_t s = UnsignedMin(len/16, s_clmulTableSizeInBlocks), i=0; - __m128i d, d2 = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-1)*16)), bswapMask2);; - __m128i c0 = _mm_setzero_si128(); - __m128i c1 = _mm_setzero_si128(); - __m128i c2 = _mm_setzero_si128(); - - while (true) - { - __m128i h0 = _mm_load_si128(table+i); - __m128i h1 = _mm_load_si128(table+i+1); - __m128i h01 = _mm_xor_si128(h0, h1); - - if (++i == s) - { - d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)data), bswapMask); - d = _mm_xor_si128(d, x); - c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0)); - c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 1)); - d = _mm_xor_si128(d, _mm_shuffle_epi32(d, _MM_SHUFFLE(1, 0, 3, 2))); - c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0)); - break; - } - - d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-i)*16-8)), bswapMask2); - c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d2, h0, 1)); - c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 1)); - d2 = _mm_xor_si128(d2, d); - c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d2, h01, 1)); - - if (++i == s) - { - d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)data), bswapMask); - d = _mm_xor_si128(d, x); - c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0x10)); - c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 0x11)); - d = _mm_xor_si128(d, _mm_shuffle_epi32(d, _MM_SHUFFLE(1, 0, 3, 2))); - c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0x10)); - break; - } - - d2 = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-i)*16-8)), bswapMask); - c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0x10)); - c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d2, h1, 0x10)); - d = _mm_xor_si128(d, d2); - c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0x10)); - } - data += s*16; - len -= s*16; - - c1 = _mm_xor_si128(_mm_xor_si128(c1, c0), c2); - x = CLMUL_Reduce(c0, c1, c2, r); - } - - _mm_store_si128((__m128i *)HashBuffer(), x); - return len; - } -#endif - - typedef BlockGetAndPut<word64, NativeByteOrder> Block; - word64 *hashBuffer = (word64 *)HashBuffer(); - - switch (2*(m_buffer.size()>=64*1024) -#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE) - + HasSSE2() -#endif - ) - { - case 0: // non-SSE2 and 2K tables - { - byte *table = MulTable(); - word64 x0 = hashBuffer[0], x1 = hashBuffer[1]; - - do - { - word64 y0, y1, a0, a1, b0, b1, c0, c1, d0, d1; - Block::Get(data)(y0)(y1); - x0 ^= y0; - x1 ^= y1; - - data += HASH_BLOCKSIZE; - len -= HASH_BLOCKSIZE; - - #define READ_TABLE_WORD64_COMMON(a, b, c, d) *(word64 *)(table+(a*1024)+(b*256)+c+d*8) - - #ifdef IS_LITTLE_ENDIAN - #if CRYPTOPP_BOOL_SLOW_WORD64 - word32 z0 = (word32)x0; - word32 z1 = (word32)(x0>>32); - word32 z2 = (word32)x1; - word32 z3 = (word32)(x1>>32); - #define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((d%2), c, (d?(z##c>>((d?d-1:0)*4))&0xf0:(z##c&0xf)<<4), e) - #else - #define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((d%2), c, ((d+8*b)?(x##a>>(((d+8*b)?(d+8*b)-1:1)*4))&0xf0:(x##a&0xf)<<4), e) - #endif - #define GF_MOST_SIG_8BITS(a) (a##1 >> 7*8) - #define GF_SHIFT_8(a) a##1 = (a##1 << 8) ^ (a##0 >> 7*8); a##0 <<= 8; - #else - #define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((1-d%2), c, ((15-d-8*b)?(x##a>>(((15-d-8*b)?(15-d-8*b)-1:0)*4))&0xf0:(x##a&0xf)<<4), e) - #define GF_MOST_SIG_8BITS(a) (a##1 & 0xff) - #define GF_SHIFT_8(a) a##1 = (a##1 >> 8) ^ (a##0 << 7*8); a##0 >>= 8; - #endif - - #define GF_MUL_32BY128(op, a, b, c) \ - a0 op READ_TABLE_WORD64(a, b, c, 0, 0) ^ READ_TABLE_WORD64(a, b, c, 1, 0);\ - a1 op READ_TABLE_WORD64(a, b, c, 0, 1) ^ READ_TABLE_WORD64(a, b, c, 1, 1);\ - b0 op READ_TABLE_WORD64(a, b, c, 2, 0) ^ READ_TABLE_WORD64(a, b, c, 3, 0);\ - b1 op READ_TABLE_WORD64(a, b, c, 2, 1) ^ READ_TABLE_WORD64(a, b, c, 3, 1);\ - c0 op READ_TABLE_WORD64(a, b, c, 4, 0) ^ READ_TABLE_WORD64(a, b, c, 5, 0);\ - c1 op READ_TABLE_WORD64(a, b, c, 4, 1) ^ READ_TABLE_WORD64(a, b, c, 5, 1);\ - d0 op READ_TABLE_WORD64(a, b, c, 6, 0) ^ READ_TABLE_WORD64(a, b, c, 7, 0);\ - d1 op READ_TABLE_WORD64(a, b, c, 6, 1) ^ READ_TABLE_WORD64(a, b, c, 7, 1);\ - - GF_MUL_32BY128(=, 0, 0, 0) - GF_MUL_32BY128(^=, 0, 1, 1) - GF_MUL_32BY128(^=, 1, 0, 2) - GF_MUL_32BY128(^=, 1, 1, 3) - - word32 r = (word32)s_reductionTable[GF_MOST_SIG_8BITS(d)] << 16; - GF_SHIFT_8(d) - c0 ^= d0; c1 ^= d1; - r ^= (word32)s_reductionTable[GF_MOST_SIG_8BITS(c)] << 8; - GF_SHIFT_8(c) - b0 ^= c0; b1 ^= c1; - r ^= s_reductionTable[GF_MOST_SIG_8BITS(b)]; - GF_SHIFT_8(b) - a0 ^= b0; a1 ^= b1; - a0 ^= ConditionalByteReverse<word64>(LITTLE_ENDIAN_ORDER, r); - x0 = a0; x1 = a1; - } - while (len >= HASH_BLOCKSIZE); - - hashBuffer[0] = x0; hashBuffer[1] = x1; - return len; - } - - case 2: // non-SSE2 and 64K tables - { - byte *table = MulTable(); - word64 x0 = hashBuffer[0], x1 = hashBuffer[1]; - - do - { - word64 y0, y1, a0, a1; - Block::Get(data)(y0)(y1); - x0 ^= y0; - x1 ^= y1; - - data += HASH_BLOCKSIZE; - len -= HASH_BLOCKSIZE; - - #undef READ_TABLE_WORD64_COMMON - #undef READ_TABLE_WORD64 - - #define READ_TABLE_WORD64_COMMON(a, c, d) *(word64 *)(table+(a)*256*16+(c)+(d)*8) - - #ifdef IS_LITTLE_ENDIAN - #if CRYPTOPP_BOOL_SLOW_WORD64 - word32 z0 = (word32)x0; - word32 z1 = (word32)(x0>>32); - word32 z2 = (word32)x1; - word32 z3 = (word32)(x1>>32); - #define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, (d?(z##c>>((d?d:1)*8-4))&0xff0:(z##c&0xff)<<4), e) - #else - #define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, ((d+4*(c%2))?(x##b>>(((d+4*(c%2))?(d+4*(c%2)):1)*8-4))&0xff0:(x##b&0xff)<<4), e) - #endif - #else - #define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, ((7-d-4*(c%2))?(x##b>>(((7-d-4*(c%2))?(7-d-4*(c%2)):1)*8-4))&0xff0:(x##b&0xff)<<4), e) - #endif - - #define GF_MUL_8BY128(op, b, c, d) \ - a0 op READ_TABLE_WORD64(b, c, d, 0);\ - a1 op READ_TABLE_WORD64(b, c, d, 1);\ - - GF_MUL_8BY128(=, 0, 0, 0) - GF_MUL_8BY128(^=, 0, 0, 1) - GF_MUL_8BY128(^=, 0, 0, 2) - GF_MUL_8BY128(^=, 0, 0, 3) - GF_MUL_8BY128(^=, 0, 1, 0) - GF_MUL_8BY128(^=, 0, 1, 1) - GF_MUL_8BY128(^=, 0, 1, 2) - GF_MUL_8BY128(^=, 0, 1, 3) - GF_MUL_8BY128(^=, 1, 2, 0) - GF_MUL_8BY128(^=, 1, 2, 1) - GF_MUL_8BY128(^=, 1, 2, 2) - GF_MUL_8BY128(^=, 1, 2, 3) - GF_MUL_8BY128(^=, 1, 3, 0) - GF_MUL_8BY128(^=, 1, 3, 1) - GF_MUL_8BY128(^=, 1, 3, 2) - GF_MUL_8BY128(^=, 1, 3, 3) - - x0 = a0; x1 = a1; - } - while (len >= HASH_BLOCKSIZE); - - hashBuffer[0] = x0; hashBuffer[1] = x1; - return len; - } -#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM - -#ifdef CRYPTOPP_X64_MASM_AVAILABLE - case 1: // SSE2 and 2K tables - GCM_AuthenticateBlocks_2K(data, len/16, hashBuffer, s_reductionTable); - return len % 16; - case 3: // SSE2 and 64K tables - GCM_AuthenticateBlocks_64K(data, len/16, hashBuffer); - return len % 16; -#endif - -#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE - case 1: // SSE2 and 2K tables - { - #ifdef __GNUC__ - __asm__ __volatile__ - ( - ".intel_syntax noprefix;" - #elif defined(CRYPTOPP_GENERATE_X64_MASM) - ALIGN 8 - GCM_AuthenticateBlocks_2K PROC FRAME - rex_push_reg rsi - push_reg rdi - push_reg rbx - .endprolog - mov rsi, r8 - mov r11, r9 - #else - AS2( mov WORD_REG(cx), data ) - AS2( mov WORD_REG(dx), len ) - AS2( mov WORD_REG(si), hashBuffer ) - AS2( shr WORD_REG(dx), 4 ) - #endif - - AS_PUSH_IF86( bx) - AS_PUSH_IF86( bp) - - #ifdef __GNUC__ - AS2( mov AS_REG_7, WORD_REG(di)) - #elif CRYPTOPP_BOOL_X86 - AS2( lea AS_REG_7, s_reductionTable) - #endif - - AS2( movdqa xmm0, [WORD_REG(si)] ) - - #define MUL_TABLE_0 WORD_REG(si) + 32 - #define MUL_TABLE_1 WORD_REG(si) + 32 + 1024 - #define RED_TABLE AS_REG_7 - - ASL(0) - AS2( movdqu xmm4, [WORD_REG(cx)] ) - AS2( pxor xmm0, xmm4 ) - - AS2( movd ebx, xmm0 ) - AS2( mov eax, AS_HEX(f0f0f0f0) ) - AS2( and eax, ebx ) - AS2( shl ebx, 4 ) - AS2( and ebx, AS_HEX(f0f0f0f0) ) - AS2( movzx edi, ah ) - AS2( movdqa xmm5, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] ) - AS2( movzx edi, al ) - AS2( movdqa xmm4, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] ) - AS2( shr eax, 16 ) - AS2( movzx edi, ah ) - AS2( movdqa xmm3, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] ) - AS2( movzx edi, al ) - AS2( movdqa xmm2, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] ) - - #define SSE2_MUL_32BITS(i) \ - AS2( psrldq xmm0, 4 )\ - AS2( movd eax, xmm0 )\ - AS2( and eax, AS_HEX(f0f0f0f0) )\ - AS2( movzx edi, bh )\ - AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\ - AS2( movzx edi, bl )\ - AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\ - AS2( shr ebx, 16 )\ - AS2( movzx edi, bh )\ - AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\ - AS2( movzx edi, bl )\ - AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\ - AS2( movd ebx, xmm0 )\ - AS2( shl ebx, 4 )\ - AS2( and ebx, AS_HEX(f0f0f0f0) )\ - AS2( movzx edi, ah )\ - AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\ - AS2( movzx edi, al )\ - AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\ - AS2( shr eax, 16 )\ - AS2( movzx edi, ah )\ - AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\ - AS2( movzx edi, al )\ - AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\ - - SSE2_MUL_32BITS(1) - SSE2_MUL_32BITS(2) - SSE2_MUL_32BITS(3) - - AS2( movzx edi, bh ) - AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] ) - AS2( movzx edi, bl ) - AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] ) - AS2( shr ebx, 16 ) - AS2( movzx edi, bh ) - AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] ) - AS2( movzx edi, bl ) - AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] ) - - AS2( movdqa xmm0, xmm3 ) - AS2( pslldq xmm3, 1 ) - AS2( pxor xmm2, xmm3 ) - AS2( movdqa xmm1, xmm2 ) - AS2( pslldq xmm2, 1 ) - AS2( pxor xmm5, xmm2 ) - - AS2( psrldq xmm0, 15 ) - AS2( movd WORD_REG(di), xmm0 ) - AS2( movzx eax, WORD PTR [RED_TABLE + WORD_REG(di)*2] ) - AS2( shl eax, 8 ) - - AS2( movdqa xmm0, xmm5 ) - AS2( pslldq xmm5, 1 ) - AS2( pxor xmm4, xmm5 ) - - AS2( psrldq xmm1, 15 ) - AS2( movd WORD_REG(di), xmm1 ) - AS2( xor ax, WORD PTR [RED_TABLE + WORD_REG(di)*2] ) - AS2( shl eax, 8 ) - - AS2( psrldq xmm0, 15 ) - AS2( movd WORD_REG(di), xmm0 ) - AS2( xor ax, WORD PTR [RED_TABLE + WORD_REG(di)*2] ) - - AS2( movd xmm0, eax ) - AS2( pxor xmm0, xmm4 ) - - AS2( add WORD_REG(cx), 16 ) - AS2( sub WORD_REG(dx), 1 ) - ASJ( jnz, 0, b ) - AS2( movdqa [WORD_REG(si)], xmm0 ) - - AS_POP_IF86( bp) - AS_POP_IF86( bx) - - #ifdef __GNUC__ - ".att_syntax prefix;" - : - : "c" (data), "d" (len/16), "S" (hashBuffer), "D" (s_reductionTable) - : "memory", "cc", "%eax" - #if CRYPTOPP_BOOL_X64 - , "%ebx", "%r11" - #endif - ); - #elif defined(CRYPTOPP_GENERATE_X64_MASM) - pop rbx - pop rdi - pop rsi - ret - GCM_AuthenticateBlocks_2K ENDP - #endif - - return len%16; - } - case 3: // SSE2 and 64K tables - { - #ifdef __GNUC__ - __asm__ __volatile__ - ( - ".intel_syntax noprefix;" - #elif defined(CRYPTOPP_GENERATE_X64_MASM) - ALIGN 8 - GCM_AuthenticateBlocks_64K PROC FRAME - rex_push_reg rsi - push_reg rdi - .endprolog - mov rsi, r8 - #else - AS2( mov WORD_REG(cx), data ) - AS2( mov WORD_REG(dx), len ) - AS2( mov WORD_REG(si), hashBuffer ) - AS2( shr WORD_REG(dx), 4 ) - #endif - - AS2( movdqa xmm0, [WORD_REG(si)] ) - - #undef MUL_TABLE - #define MUL_TABLE(i,j) WORD_REG(si) + 32 + (i*4+j)*256*16 - - ASL(1) - AS2( movdqu xmm1, [WORD_REG(cx)] ) - AS2( pxor xmm1, xmm0 ) - AS2( pxor xmm0, xmm0 ) - - #undef SSE2_MUL_32BITS - #define SSE2_MUL_32BITS(i) \ - AS2( movd eax, xmm1 )\ - AS2( psrldq xmm1, 4 )\ - AS2( movzx edi, al )\ - AS2( add WORD_REG(di), WORD_REG(di) )\ - AS2( pxor xmm0, [MUL_TABLE(i,0) + WORD_REG(di)*8] )\ - AS2( movzx edi, ah )\ - AS2( add WORD_REG(di), WORD_REG(di) )\ - AS2( pxor xmm0, [MUL_TABLE(i,1) + WORD_REG(di)*8] )\ - AS2( shr eax, 16 )\ - AS2( movzx edi, al )\ - AS2( add WORD_REG(di), WORD_REG(di) )\ - AS2( pxor xmm0, [MUL_TABLE(i,2) + WORD_REG(di)*8] )\ - AS2( movzx edi, ah )\ - AS2( add WORD_REG(di), WORD_REG(di) )\ - AS2( pxor xmm0, [MUL_TABLE(i,3) + WORD_REG(di)*8] )\ - - SSE2_MUL_32BITS(0) - SSE2_MUL_32BITS(1) - SSE2_MUL_32BITS(2) - SSE2_MUL_32BITS(3) - - AS2( add WORD_REG(cx), 16 ) - AS2( sub WORD_REG(dx), 1 ) - ASJ( jnz, 1, b ) - AS2( movdqa [WORD_REG(si)], xmm0 ) - - #ifdef __GNUC__ - ".att_syntax prefix;" - : - : "c" (data), "d" (len/16), "S" (hashBuffer) - : "memory", "cc", "%edi", "%eax" - ); - #elif defined(CRYPTOPP_GENERATE_X64_MASM) - pop rdi - pop rsi - ret - GCM_AuthenticateBlocks_64K ENDP - #endif - - return len%16; - } -#endif -#ifndef CRYPTOPP_GENERATE_X64_MASM - } - - return len%16; -} - -void GCM_Base::AuthenticateLastHeaderBlock() -{ - if (m_bufferedDataLength > 0) - { - memset(m_buffer+m_bufferedDataLength, 0, HASH_BLOCKSIZE-m_bufferedDataLength); - m_bufferedDataLength = 0; - GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE); - } -} - -void GCM_Base::AuthenticateLastConfidentialBlock() -{ - GCM_Base::AuthenticateLastHeaderBlock(); - PutBlock<word64, BigEndian, true>(NULL, m_buffer)(m_totalHeaderLength*8)(m_totalMessageLength*8); - GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE); -} - -void GCM_Base::AuthenticateLastFooterBlock(byte *mac, size_t macSize) -{ - m_ctr.Seek(0); - ReverseHashBufferIfNeeded(); - m_ctr.ProcessData(mac, HashBuffer(), macSize); -} - -NAMESPACE_END - -#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM -#endif |