diff options
Diffstat (limited to 'src/lib/block/twofish/twofish.cpp')
| -rw-r--r-- | src/lib/block/twofish/twofish.cpp | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/src/lib/block/twofish/twofish.cpp b/src/lib/block/twofish/twofish.cpp index 336d73a03..a98ae8e70 100644 --- a/src/lib/block/twofish/twofish.cpp +++ b/src/lib/block/twofish/twofish.cpp @@ -19,12 +19,15 @@ namespace Botan { */ void Twofish::encrypt_n(const byte in[], byte out[], size_t blocks) const { - for(size_t i = 0; i != blocks; ++i) + BOTAN_PARALLEL_FOR(size_t i = 0; i < blocks; ++i) { - u32bit A = load_le<u32bit>(in, 0) ^ m_RK[0]; - u32bit B = load_le<u32bit>(in, 1) ^ m_RK[1]; - u32bit C = load_le<u32bit>(in, 2) ^ m_RK[2]; - u32bit D = load_le<u32bit>(in, 3) ^ m_RK[3]; + u32bit A, B, C, D; + load_le(in + BLOCK_SIZE*i, A, B, C, D); + + A ^= m_RK[0]; + B ^= m_RK[1]; + C ^= m_RK[2]; + D ^= m_RK[3]; for(size_t j = 0; j != 16; j += 2) { @@ -58,10 +61,7 @@ void Twofish::encrypt_n(const byte in[], byte out[], size_t blocks) const A ^= m_RK[6]; B ^= m_RK[7]; - store_le(out, C, D, A, B); - - in += BLOCK_SIZE; - out += BLOCK_SIZE; + store_le(out + BLOCK_SIZE*i, C, D, A, B); } } @@ -70,12 +70,15 @@ void Twofish::encrypt_n(const byte in[], byte out[], size_t blocks) const */ void Twofish::decrypt_n(const byte in[], byte out[], size_t blocks) const { - for(size_t i = 0; i != blocks; ++i) + BOTAN_PARALLEL_FOR(size_t i = 0; i < blocks; ++i) { - u32bit A = load_le<u32bit>(in, 0) ^ m_RK[4]; - u32bit B = load_le<u32bit>(in, 1) ^ m_RK[5]; - u32bit C = load_le<u32bit>(in, 2) ^ m_RK[6]; - u32bit D = load_le<u32bit>(in, 3) ^ m_RK[7]; + u32bit A, B, C, D; + load_le(in + BLOCK_SIZE*i, A, B, C, D); + + A ^= m_RK[4]; + B ^= m_RK[5]; + C ^= m_RK[6]; + D ^= m_RK[7]; for(size_t j = 0; j != 16; j += 2) { @@ -109,10 +112,7 @@ void Twofish::decrypt_n(const byte in[], byte out[], size_t blocks) const A ^= m_RK[2]; B ^= m_RK[3]; - store_le(out, C, D, A, B); - - in += BLOCK_SIZE; - out += BLOCK_SIZE; + store_le(out + BLOCK_SIZE*i, C, D, A, B); } } @@ -139,7 +139,7 @@ void Twofish::key_schedule(const byte key[], size_t length) m_SB[768+i] = MDS3[Q1[Q1[i]^S[ 3]]^S[ 7]]; } - for(size_t i = 0; i != 40; i += 2) + BOTAN_PARALLEL_FOR(size_t i = 0; i < 40; i += 2) { u32bit X = MDS0[Q0[Q0[i ]^key[ 8]]^key[ 0]] ^ MDS1[Q0[Q1[i ]^key[ 9]]^key[ 1]] ^ @@ -166,7 +166,7 @@ void Twofish::key_schedule(const byte key[], size_t length) m_SB[768+i] = MDS3[Q1[Q1[Q0[i]^S[ 3]]^S[ 7]]^S[11]]; } - for(size_t i = 0; i != 40; i += 2) + BOTAN_PARALLEL_FOR(size_t i = 0; i < 40; i += 2) { u32bit X = MDS0[Q0[Q0[Q1[i ]^key[16]]^key[ 8]]^key[ 0]] ^ MDS1[Q0[Q1[Q1[i ]^key[17]]^key[ 9]]^key[ 1]] ^ @@ -193,7 +193,7 @@ void Twofish::key_schedule(const byte key[], size_t length) m_SB[768+i] = MDS3[Q1[Q1[Q0[Q1[i]^S[ 3]]^S[ 7]]^S[11]]^S[15]]; } - for(size_t i = 0; i != 40; i += 2) + BOTAN_PARALLEL_FOR(size_t i = 0; i < 40; i += 2) { u32bit X = MDS0[Q0[Q0[Q1[Q1[i ]^key[24]]^key[16]]^key[ 8]]^key[ 0]] ^ MDS1[Q0[Q1[Q1[Q0[i ]^key[25]]^key[17]]^key[ 9]]^key[ 1]] ^ |