diff options
author | lloyd <[email protected]> | 2014-01-10 03:41:59 +0000 |
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committer | lloyd <[email protected]> | 2014-01-10 03:41:59 +0000 |
commit | 6894dca64c04936d07048c0e8cbf7e25858548c3 (patch) | |
tree | 5d572bfde9fe667dab14e3f04b5285a85d8acd95 /src/lib/block/aes_ssse3 | |
parent | 9efa3be92442afb3d0b69890a36c7f122df18eda (diff) |
Move lib into src
Diffstat (limited to 'src/lib/block/aes_ssse3')
-rw-r--r-- | src/lib/block/aes_ssse3/aes_ssse3.cpp | 608 | ||||
-rw-r--r-- | src/lib/block/aes_ssse3/aes_ssse3.h | 71 | ||||
-rw-r--r-- | src/lib/block/aes_ssse3/info.txt | 17 |
3 files changed, 696 insertions, 0 deletions
diff --git a/src/lib/block/aes_ssse3/aes_ssse3.cpp b/src/lib/block/aes_ssse3/aes_ssse3.cpp new file mode 100644 index 000000000..476b004bb --- /dev/null +++ b/src/lib/block/aes_ssse3/aes_ssse3.cpp @@ -0,0 +1,608 @@ +/* +* AES using SSSE3 +* (C) 2010 Jack Lloyd +* +* This is more or less a direct translation of public domain x86-64 +* assembly written by Mike Hamburg, described in "Accelerating AES +* with Vector Permute Instructions" (CHES 2009). His original code is +* available at http://crypto.stanford.edu/vpaes/ +* +* Distributed under the terms of the Botan license +*/ + +#include <botan/aes_ssse3.h> +#include <tmmintrin.h> + +namespace Botan { + +namespace { + +const __m128i low_nibs = _mm_set1_epi8(0x0F); + +const __m128i k_ipt1 = _mm_set_epi32( + 0xCABAE090, 0x52227808, 0xC2B2E898, 0x5A2A7000); +const __m128i k_ipt2 = _mm_set_epi32( + 0xCD80B1FC, 0xB0FDCC81, 0x4C01307D, 0x317C4D00); + +const __m128i k_inv1 = _mm_set_epi32( + 0x04070309, 0x0A0B0C02, 0x0E05060F, 0x0D080180); +const __m128i k_inv2 = _mm_set_epi32( + 0x030D0E0C, 0x02050809, 0x01040A06, 0x0F0B0780); + +const __m128i sb1u = _mm_set_epi32( + 0xA5DF7A6E, 0x142AF544, 0xB19BE18F, 0xCB503E00); +const __m128i sb1t = _mm_set_epi32( + 0x3BF7CCC1, 0x0D2ED9EF, 0x3618D415, 0xFAE22300); + +const __m128i mc_forward[4] = { + _mm_set_epi32(0x0C0F0E0D, 0x080B0A09, 0x04070605, 0x00030201), + _mm_set_epi32(0x00030201, 0x0C0F0E0D, 0x080B0A09, 0x04070605), + _mm_set_epi32(0x04070605, 0x00030201, 0x0C0F0E0D, 0x080B0A09), + _mm_set_epi32(0x080B0A09, 0x04070605, 0x00030201, 0x0C0F0E0D) +}; + +const __m128i sr[4] = { + _mm_set_epi32(0x0F0E0D0C, 0x0B0A0908, 0x07060504, 0x03020100), + _mm_set_epi32(0x0B06010C, 0x07020D08, 0x030E0904, 0x0F0A0500), + _mm_set_epi32(0x070E050C, 0x030A0108, 0x0F060D04, 0x0B020900), + _mm_set_epi32(0x0306090C, 0x0F020508, 0x0B0E0104, 0x070A0D00), +}; + +#define mm_xor3(x, y, z) _mm_xor_si128(x, _mm_xor_si128(y, z)) + +__m128i aes_schedule_transform(__m128i input, + __m128i table_1, + __m128i table_2) + { + __m128i i_1 = _mm_and_si128(low_nibs, input); + __m128i i_2 = _mm_srli_epi32(_mm_andnot_si128(low_nibs, input), 4); + + input = _mm_and_si128(low_nibs, input); + + return _mm_xor_si128( + _mm_shuffle_epi8(table_1, i_1), + _mm_shuffle_epi8(table_2, i_2)); + } + +__m128i aes_schedule_mangle(__m128i k, byte round_no) + { + __m128i t = _mm_shuffle_epi8(_mm_xor_si128(k, _mm_set1_epi8(0x5B)), + mc_forward[0]); + + __m128i t2 = t; + + t = _mm_shuffle_epi8(t, mc_forward[0]); + + t2 = mm_xor3(t2, t, _mm_shuffle_epi8(t, mc_forward[0])); + + return _mm_shuffle_epi8(t2, sr[round_no % 4]); + } + +__m128i aes_schedule_192_smear(__m128i x, __m128i y) + { + return mm_xor3(y, + _mm_shuffle_epi32(x, 0xFE), + _mm_shuffle_epi32(y, 0x80)); + } + +__m128i aes_schedule_mangle_dec(__m128i k, byte round_no) + { + const __m128i dsk[8] = { + _mm_set_epi32(0x4AED9334, 0x82255BFC, 0xB6116FC8, 0x7ED9A700), + _mm_set_epi32(0x8BB89FAC, 0xE9DAFDCE, 0x45765162, 0x27143300), + _mm_set_epi32(0x4622EE8A, 0xADC90561, 0x27438FEB, 0xCCA86400), + _mm_set_epi32(0x73AEE13C, 0xBD602FF2, 0x815C13CE, 0x4F92DD00), + _mm_set_epi32(0xF83F3EF9, 0xFA3D3CFB, 0x03C4C502, 0x01C6C700), + _mm_set_epi32(0xA5526A9D, 0x7384BC4B, 0xEE1921D6, 0x38CFF700), + _mm_set_epi32(0xA080D3F3, 0x10306343, 0xE3C390B0, 0x53732000), + _mm_set_epi32(0x2F45AEC4, 0x8CE60D67, 0xA0CA214B, 0x036982E8) + }; + + __m128i t = aes_schedule_transform(k, dsk[0], dsk[1]); + __m128i output = _mm_shuffle_epi8(t, mc_forward[0]); + + t = aes_schedule_transform(t, dsk[2], dsk[3]); + output = _mm_shuffle_epi8(_mm_xor_si128(t, output), mc_forward[0]); + + t = aes_schedule_transform(t, dsk[4], dsk[5]); + output = _mm_shuffle_epi8(_mm_xor_si128(t, output), mc_forward[0]); + + t = aes_schedule_transform(t, dsk[6], dsk[7]); + output = _mm_shuffle_epi8(_mm_xor_si128(t, output), mc_forward[0]); + + return _mm_shuffle_epi8(output, sr[round_no % 4]); + } + +__m128i aes_schedule_mangle_last(__m128i k, byte round_no) + { + const __m128i out_tr1 = _mm_set_epi32( + 0xF7974121, 0xDEBE6808, 0xFF9F4929, 0xD6B66000); + const __m128i out_tr2 = _mm_set_epi32( + 0xE10D5DB1, 0xB05C0CE0, 0x01EDBD51, 0x50BCEC00); + + k = _mm_shuffle_epi8(k, sr[round_no % 4]); + k = _mm_xor_si128(k, _mm_set1_epi8(0x5B)); + return aes_schedule_transform(k, out_tr1, out_tr2); + } + +__m128i aes_schedule_mangle_last_dec(__m128i k) + { + const __m128i deskew1 = _mm_set_epi32( + 0x1DFEB95A, 0x5DBEF91A, 0x07E4A340, 0x47A4E300); + const __m128i deskew2 = _mm_set_epi32( + 0x2841C2AB, 0xF49D1E77, 0x5F36B5DC, 0x83EA6900); + + k = _mm_xor_si128(k, _mm_set1_epi8(0x5B)); + return aes_schedule_transform(k, deskew1, deskew2); + } + +__m128i aes_schedule_round(__m128i* rcon, __m128i input1, __m128i input2) + { + if(rcon) + { + input2 = _mm_xor_si128(_mm_alignr_epi8(_mm_setzero_si128(), *rcon, 15), + input2); + + *rcon = _mm_alignr_epi8(*rcon, *rcon, 15); // next rcon + + input1 = _mm_shuffle_epi32(input1, 0xFF); // rotate + input1 = _mm_alignr_epi8(input1, input1, 1); + } + + __m128i smeared = _mm_xor_si128(input2, _mm_slli_si128(input2, 4)); + smeared = mm_xor3(smeared, _mm_slli_si128(smeared, 8), _mm_set1_epi8(0x5B)); + + __m128i t = _mm_srli_epi32(_mm_andnot_si128(low_nibs, input1), 4); + + input1 = _mm_and_si128(low_nibs, input1); + + __m128i t2 = _mm_shuffle_epi8(k_inv2, input1); + + input1 = _mm_xor_si128(input1, t); + + __m128i t3 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, t)); + __m128i t4 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, input1)); + + __m128i t5 = _mm_xor_si128(input1, _mm_shuffle_epi8(k_inv1, t3)); + __m128i t6 = _mm_xor_si128(t, _mm_shuffle_epi8(k_inv1, t4)); + + return mm_xor3(_mm_shuffle_epi8(sb1u, t5), + _mm_shuffle_epi8(sb1t, t6), + smeared); + } + +__m128i aes_ssse3_encrypt(__m128i B, const __m128i* keys, size_t rounds) + { + const __m128i sb2u = _mm_set_epi32( + 0x5EB7E955, 0xBC982FCD, 0xE27A93C6, 0x0B712400); + const __m128i sb2t = _mm_set_epi32( + 0xC2A163C8, 0xAB82234A, 0x69EB8840, 0x0AE12900); + + const __m128i sbou = _mm_set_epi32( + 0x15AABF7A, 0xC502A878, 0xD0D26D17, 0x6FBDC700); + const __m128i sbot = _mm_set_epi32( + 0x8E1E90D1, 0x412B35FA, 0xCFE474A5, 0x5FBB6A00); + + const __m128i mc_backward[4] = { + _mm_set_epi32(0x0E0D0C0F, 0x0A09080B, 0x06050407, 0x02010003), + _mm_set_epi32(0x0A09080B, 0x06050407, 0x02010003, 0x0E0D0C0F), + _mm_set_epi32(0x06050407, 0x02010003, 0x0E0D0C0F, 0x0A09080B), + _mm_set_epi32(0x02010003, 0x0E0D0C0F, 0x0A09080B, 0x06050407), + }; + + B = mm_xor3(_mm_shuffle_epi8(k_ipt1, _mm_and_si128(low_nibs, B)), + _mm_shuffle_epi8(k_ipt2, + _mm_srli_epi32( + _mm_andnot_si128(low_nibs, B), + 4)), + _mm_loadu_si128(keys)); + + for(size_t r = 1; ; ++r) + { + const __m128i K = _mm_loadu_si128(keys + r); + + __m128i t = _mm_srli_epi32(_mm_andnot_si128(low_nibs, B), 4); + + B = _mm_and_si128(low_nibs, B); + + __m128i t2 = _mm_shuffle_epi8(k_inv2, B); + + B = _mm_xor_si128(B, t); + + __m128i t3 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, t)); + __m128i t4 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, B)); + + __m128i t5 = _mm_xor_si128(B, _mm_shuffle_epi8(k_inv1, t3)); + __m128i t6 = _mm_xor_si128(t, _mm_shuffle_epi8(k_inv1, t4)); + + if(r == rounds) + { + B = _mm_shuffle_epi8( + mm_xor3(_mm_shuffle_epi8(sbou, t5), + _mm_shuffle_epi8(sbot, t6), + K), + sr[r % 4]); + + return B; + } + + __m128i t7 = mm_xor3(_mm_shuffle_epi8(sb1t, t6), + _mm_shuffle_epi8(sb1u, t5), + K); + + __m128i t8 = mm_xor3(_mm_shuffle_epi8(sb2t, t6), + _mm_shuffle_epi8(sb2u, t5), + _mm_shuffle_epi8(t7, mc_forward[r % 4])); + + B = mm_xor3(_mm_shuffle_epi8(t8, mc_forward[r % 4]), + _mm_shuffle_epi8(t7, mc_backward[r % 4]), + t8); + } + } + +__m128i aes_ssse3_decrypt(__m128i B, const __m128i* keys, size_t rounds) + { + const __m128i k_dipt1 = _mm_set_epi32( + 0x154A411E, 0x114E451A, 0x0F505B04, 0x0B545F00); + const __m128i k_dipt2 = _mm_set_epi32( + 0x12771772, 0xF491F194, 0x86E383E6, 0x60056500); + + const __m128i sb9u = _mm_set_epi32( + 0xCAD51F50, 0x4F994CC9, 0x851C0353, 0x9A86D600); + const __m128i sb9t = _mm_set_epi32( + 0x725E2C9E, 0xB2FBA565, 0xC03B1789, 0xECD74900); + + const __m128i sbeu = _mm_set_epi32( + 0x22426004, 0x64B4F6B0, 0x46F29296, 0x26D4D000); + const __m128i sbet = _mm_set_epi32( + 0x9467F36B, 0x98593E32, 0x0C55A6CD, 0xFFAAC100); + + const __m128i sbdu = _mm_set_epi32( + 0xF56E9B13, 0x882A4439, 0x7D57CCDF, 0xE6B1A200); + const __m128i sbdt = _mm_set_epi32( + 0x2931180D, 0x15DEEFD3, 0x3CE2FAF7, 0x24C6CB00); + + const __m128i sbbu = _mm_set_epi32( + 0x602646F6, 0xB0F2D404, 0xD0226492, 0x96B44200); + const __m128i sbbt = _mm_set_epi32( + 0xF3FF0C3E, 0x3255AA6B, 0xC19498A6, 0xCD596700); + + __m128i mc = mc_forward[3]; + + __m128i t = + _mm_shuffle_epi8(k_dipt2, + _mm_srli_epi32( + _mm_andnot_si128(low_nibs, B), + 4)); + + B = mm_xor3(t, _mm_loadu_si128(keys), + _mm_shuffle_epi8(k_dipt1, _mm_and_si128(B, low_nibs))); + + for(size_t r = 1; ; ++r) + { + const __m128i K = _mm_loadu_si128(keys + r); + + t = _mm_srli_epi32(_mm_andnot_si128(low_nibs, B), 4); + + B = _mm_and_si128(low_nibs, B); + + __m128i t2 = _mm_shuffle_epi8(k_inv2, B); + + B = _mm_xor_si128(B, t); + + __m128i t3 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, t)); + __m128i t4 = _mm_xor_si128(t2, _mm_shuffle_epi8(k_inv1, B)); + __m128i t5 = _mm_xor_si128(B, _mm_shuffle_epi8(k_inv1, t3)); + __m128i t6 = _mm_xor_si128(t, _mm_shuffle_epi8(k_inv1, t4)); + + if(r == rounds) + { + const __m128i sbou = _mm_set_epi32( + 0xC7AA6DB9, 0xD4943E2D, 0x1387EA53, 0x7EF94000); + const __m128i sbot = _mm_set_epi32( + 0xCA4B8159, 0xD8C58E9C, 0x12D7560F, 0x93441D00); + + __m128i x = _mm_shuffle_epi8(sbou, t5); + __m128i y = _mm_shuffle_epi8(sbot, t6); + x = _mm_xor_si128(x, K); + x = _mm_xor_si128(x, y); + + const u32bit which_sr = ((((rounds - 1) << 4) ^ 48) & 48) / 16; + return _mm_shuffle_epi8(x, sr[which_sr]); + } + + __m128i t8 = _mm_xor_si128(_mm_shuffle_epi8(sb9t, t6), + _mm_xor_si128(_mm_shuffle_epi8(sb9u, t5), K)); + + __m128i t9 = mm_xor3(_mm_shuffle_epi8(t8, mc), + _mm_shuffle_epi8(sbdu, t5), + _mm_shuffle_epi8(sbdt, t6)); + + __m128i t12 = _mm_xor_si128( + _mm_xor_si128( + _mm_shuffle_epi8(t9, mc), + _mm_shuffle_epi8(sbbu, t5)), + _mm_shuffle_epi8(sbbt, t6)); + + B = _mm_xor_si128(_mm_xor_si128(_mm_shuffle_epi8(t12, mc), + _mm_shuffle_epi8(sbeu, t5)), + _mm_shuffle_epi8(sbet, t6)); + + mc = _mm_alignr_epi8(mc, mc, 12); + } + } + +} + +/* +* AES-128 Encryption +*/ +void AES_128_SSSE3::encrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&EK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_encrypt(B, keys, 10)); + } + } + +/* +* AES-128 Decryption +*/ +void AES_128_SSSE3::decrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&DK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_decrypt(B, keys, 10)); + } + } + +/* +* AES-128 Key Schedule +*/ +void AES_128_SSSE3::key_schedule(const byte keyb[], size_t) + { + __m128i rcon = _mm_set_epi32(0x702A9808, 0x4D7C7D81, + 0x1F8391B9, 0xAF9DEEB6); + + __m128i key = _mm_loadu_si128(reinterpret_cast<const __m128i*>(keyb)); + + EK.resize(11*4); + DK.resize(11*4); + + __m128i* EK_mm = reinterpret_cast<__m128i*>(&EK[0]); + __m128i* DK_mm = reinterpret_cast<__m128i*>(&DK[0]); + + _mm_storeu_si128(DK_mm + 10, _mm_shuffle_epi8(key, sr[2])); + + key = aes_schedule_transform(key, k_ipt1, k_ipt2); + + _mm_storeu_si128(EK_mm, key); + + for(size_t i = 1; i != 10; ++i) + { + key = aes_schedule_round(&rcon, key, key); + + _mm_storeu_si128(EK_mm + i, + aes_schedule_mangle(key, (12-i) % 4)); + + _mm_storeu_si128(DK_mm + (10-i), + aes_schedule_mangle_dec(key, (10-i) % 4)); + } + + key = aes_schedule_round(&rcon, key, key); + _mm_storeu_si128(EK_mm + 10, aes_schedule_mangle_last(key, 2)); + _mm_storeu_si128(DK_mm, aes_schedule_mangle_last_dec(key)); + } + +void AES_128_SSSE3::clear() + { + zap(EK); + zap(DK); + } + +/* +* AES-192 Encryption +*/ +void AES_192_SSSE3::encrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&EK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_encrypt(B, keys, 12)); + } + } + +/* +* AES-192 Decryption +*/ +void AES_192_SSSE3::decrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&DK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_decrypt(B, keys, 12)); + } + } + +/* +* AES-192 Key Schedule +*/ +void AES_192_SSSE3::key_schedule(const byte keyb[], size_t) + { + __m128i rcon = _mm_set_epi32(0x702A9808, 0x4D7C7D81, + 0x1F8391B9, 0xAF9DEEB6); + + EK.resize(13*4); + DK.resize(13*4); + + __m128i* EK_mm = reinterpret_cast<__m128i*>(&EK[0]); + __m128i* DK_mm = reinterpret_cast<__m128i*>(&DK[0]); + + __m128i key1 = _mm_loadu_si128(reinterpret_cast<const __m128i*>(keyb)); + __m128i key2 = _mm_loadu_si128(reinterpret_cast<const __m128i*>((keyb + 8))); + + _mm_storeu_si128(DK_mm + 12, _mm_shuffle_epi8(key1, sr[0])); + + key1 = aes_schedule_transform(key1, k_ipt1, k_ipt2); + key2 = aes_schedule_transform(key2, k_ipt1, k_ipt2); + + _mm_storeu_si128(EK_mm + 0, key1); + + // key2 with 8 high bytes masked off + __m128i t = _mm_slli_si128(_mm_srli_si128(key2, 8), 8); + + for(size_t i = 0; i != 4; ++i) + { + key2 = aes_schedule_round(&rcon, key2, key1); + + _mm_storeu_si128(EK_mm + 3*i+1, + aes_schedule_mangle(_mm_alignr_epi8(key2, t, 8), (i+3)%4)); + _mm_storeu_si128(DK_mm + 11-3*i, + aes_schedule_mangle_dec(_mm_alignr_epi8(key2, t, 8), (i+3)%4)); + + t = aes_schedule_192_smear(key2, t); + + _mm_storeu_si128(EK_mm + 3*i+2, + aes_schedule_mangle(t, (i+2)%4)); + _mm_storeu_si128(DK_mm + 10-3*i, + aes_schedule_mangle_dec(t, (i+2)%4)); + + key2 = aes_schedule_round(&rcon, t, key2); + + if(i == 3) + { + _mm_storeu_si128(EK_mm + 3*i+3, + aes_schedule_mangle_last(key2, (i+1)%4)); + _mm_storeu_si128(DK_mm + 9-3*i, + aes_schedule_mangle_last_dec(key2)); + } + else + { + _mm_storeu_si128(EK_mm + 3*i+3, + aes_schedule_mangle(key2, (i+1)%4)); + _mm_storeu_si128(DK_mm + 9-3*i, + aes_schedule_mangle_dec(key2, (i+1)%4)); + } + + key1 = key2; + key2 = aes_schedule_192_smear(key2, + _mm_slli_si128(_mm_srli_si128(t, 8), 8)); + t = _mm_slli_si128(_mm_srli_si128(key2, 8), 8); + } + } + +void AES_192_SSSE3::clear() + { + zap(EK); + zap(DK); + } + +/* +* AES-256 Encryption +*/ +void AES_256_SSSE3::encrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&EK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_encrypt(B, keys, 14)); + } + } + +/* +* AES-256 Decryption +*/ +void AES_256_SSSE3::decrypt_n(const byte in[], byte out[], size_t blocks) const + { + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); + __m128i* out_mm = reinterpret_cast<__m128i*>(out); + + const __m128i* keys = reinterpret_cast<const __m128i*>(&DK[0]); + + for(size_t i = 0; i != blocks; ++i) + { + __m128i B = _mm_loadu_si128(in_mm + i); + _mm_storeu_si128(out_mm + i, aes_ssse3_decrypt(B, keys, 14)); + } + } + +/* +* AES-256 Key Schedule +*/ +void AES_256_SSSE3::key_schedule(const byte keyb[], size_t) + { + __m128i rcon = _mm_set_epi32(0x702A9808, 0x4D7C7D81, + 0x1F8391B9, 0xAF9DEEB6); + + EK.resize(15*4); + DK.resize(15*4); + + __m128i* EK_mm = reinterpret_cast<__m128i*>(&EK[0]); + __m128i* DK_mm = reinterpret_cast<__m128i*>(&DK[0]); + + __m128i key1 = _mm_loadu_si128(reinterpret_cast<const __m128i*>(keyb)); + __m128i key2 = _mm_loadu_si128(reinterpret_cast<const __m128i*>((keyb + 16))); + + _mm_storeu_si128(DK_mm + 14, _mm_shuffle_epi8(key1, sr[2])); + + key1 = aes_schedule_transform(key1, k_ipt1, k_ipt2); + key2 = aes_schedule_transform(key2, k_ipt1, k_ipt2); + + _mm_storeu_si128(EK_mm + 0, key1); + _mm_storeu_si128(EK_mm + 1, aes_schedule_mangle(key2, 3)); + + _mm_storeu_si128(DK_mm + 13, aes_schedule_mangle_dec(key2, 1)); + + for(size_t i = 2; i != 14; i += 2) + { + __m128i k_t = key2; + key1 = key2 = aes_schedule_round(&rcon, key2, key1); + + _mm_storeu_si128(EK_mm + i, aes_schedule_mangle(key2, i % 4)); + _mm_storeu_si128(DK_mm + (14-i), aes_schedule_mangle_dec(key2, (i+2) % 4)); + + key2 = aes_schedule_round(nullptr, _mm_shuffle_epi32(key2, 0xFF), k_t); + _mm_storeu_si128(EK_mm + i + 1, aes_schedule_mangle(key2, (i - 1) % 4)); + _mm_storeu_si128(DK_mm + (13-i), aes_schedule_mangle_dec(key2, (i+1) % 4)); + } + + key2 = aes_schedule_round(&rcon, key2, key1); + + _mm_storeu_si128(EK_mm + 14, aes_schedule_mangle_last(key2, 2)); + _mm_storeu_si128(DK_mm + 0, aes_schedule_mangle_last_dec(key2)); + } + +void AES_256_SSSE3::clear() + { + zap(EK); + zap(DK); + } + +} diff --git a/src/lib/block/aes_ssse3/aes_ssse3.h b/src/lib/block/aes_ssse3/aes_ssse3.h new file mode 100644 index 000000000..938abeae3 --- /dev/null +++ b/src/lib/block/aes_ssse3/aes_ssse3.h @@ -0,0 +1,71 @@ +/* +* AES using SSSE3 +* (C) 2010 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_AES_SSSE3_H__ +#define BOTAN_AES_SSSE3_H__ + +#include <botan/block_cipher.h> + +namespace Botan { + +/** +* AES-128 using SSSE3 +*/ +class BOTAN_DLL AES_128_SSSE3 : public Block_Cipher_Fixed_Params<16, 16> + { + public: + void encrypt_n(const byte in[], byte out[], size_t blocks) const; + void decrypt_n(const byte in[], byte out[], size_t blocks) const; + + void clear(); + std::string name() const { return "AES-128"; } + BlockCipher* clone() const { return new AES_128_SSSE3; } + private: + void key_schedule(const byte[], size_t); + + secure_vector<u32bit> EK, DK; + }; + +/** +* AES-192 using SSSE3 +*/ +class BOTAN_DLL AES_192_SSSE3 : public Block_Cipher_Fixed_Params<16, 24> + { + public: + void encrypt_n(const byte in[], byte out[], size_t blocks) const; + void decrypt_n(const byte in[], byte out[], size_t blocks) const; + + void clear(); + std::string name() const { return "AES-192"; } + BlockCipher* clone() const { return new AES_192_SSSE3; } + private: + void key_schedule(const byte[], size_t); + + secure_vector<u32bit> EK, DK; + }; + +/** +* AES-256 using SSSE3 +*/ +class BOTAN_DLL AES_256_SSSE3 : public Block_Cipher_Fixed_Params<16, 32> + { + public: + void encrypt_n(const byte in[], byte out[], size_t blocks) const; + void decrypt_n(const byte in[], byte out[], size_t blocks) const; + + void clear(); + std::string name() const { return "AES-256"; } + BlockCipher* clone() const { return new AES_256_SSSE3; } + private: + void key_schedule(const byte[], size_t); + + secure_vector<u32bit> EK, DK; + }; + +} + +#endif diff --git a/src/lib/block/aes_ssse3/info.txt b/src/lib/block/aes_ssse3/info.txt new file mode 100644 index 000000000..4b1aec535 --- /dev/null +++ b/src/lib/block/aes_ssse3/info.txt @@ -0,0 +1,17 @@ +define AES_SSSE3 20131128 + +load_on auto + +need_isa ssse3 + +<requires> +simd_engine +</requires> + +# Intel C++ can't deal with syntax for defining constants :( +<cc> +gcc +clang +msvc +sunstudio +</cc> |