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path: root/src/lib/block/twofish/twofish.cpp
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-rw-r--r--src/lib/block/twofish/twofish.cpp124
1 files changed, 62 insertions, 62 deletions
diff --git a/src/lib/block/twofish/twofish.cpp b/src/lib/block/twofish/twofish.cpp
index ffdf4b198..336d73a03 100644
--- a/src/lib/block/twofish/twofish.cpp
+++ b/src/lib/block/twofish/twofish.cpp
@@ -21,42 +21,42 @@ void Twofish::encrypt_n(const byte in[], byte out[], size_t blocks) const
{
for(size_t i = 0; i != blocks; ++i)
{
- u32bit A = load_le<u32bit>(in, 0) ^ RK[0];
- u32bit B = load_le<u32bit>(in, 1) ^ RK[1];
- u32bit C = load_le<u32bit>(in, 2) ^ RK[2];
- u32bit D = load_le<u32bit>(in, 3) ^ RK[3];
+ 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];
for(size_t j = 0; j != 16; j += 2)
{
u32bit X, Y;
- X = SB[ get_byte(3, A)] ^ SB[256+get_byte(2, A)] ^
- SB[512+get_byte(1, A)] ^ SB[768+get_byte(0, A)];
- Y = SB[ get_byte(0, B)] ^ SB[256+get_byte(3, B)] ^
- SB[512+get_byte(2, B)] ^ SB[768+get_byte(1, B)];
+ X = m_SB[ get_byte(3, A)] ^ m_SB[256+get_byte(2, A)] ^
+ m_SB[512+get_byte(1, A)] ^ m_SB[768+get_byte(0, A)];
+ Y = m_SB[ get_byte(0, B)] ^ m_SB[256+get_byte(3, B)] ^
+ m_SB[512+get_byte(2, B)] ^ m_SB[768+get_byte(1, B)];
X += Y;
- Y += X + RK[2*j + 9];
- X += RK[2*j + 8];
+ Y += X + m_RK[2*j + 9];
+ X += m_RK[2*j + 8];
C = rotate_right(C ^ X, 1);
D = rotate_left(D, 1) ^ Y;
- X = SB[ get_byte(3, C)] ^ SB[256+get_byte(2, C)] ^
- SB[512+get_byte(1, C)] ^ SB[768+get_byte(0, C)];
- Y = SB[ get_byte(0, D)] ^ SB[256+get_byte(3, D)] ^
- SB[512+get_byte(2, D)] ^ SB[768+get_byte(1, D)];
+ X = m_SB[ get_byte(3, C)] ^ m_SB[256+get_byte(2, C)] ^
+ m_SB[512+get_byte(1, C)] ^ m_SB[768+get_byte(0, C)];
+ Y = m_SB[ get_byte(0, D)] ^ m_SB[256+get_byte(3, D)] ^
+ m_SB[512+get_byte(2, D)] ^ m_SB[768+get_byte(1, D)];
X += Y;
- Y += X + RK[2*j + 11];
- X += RK[2*j + 10];
+ Y += X + m_RK[2*j + 11];
+ X += m_RK[2*j + 10];
A = rotate_right(A ^ X, 1);
B = rotate_left(B, 1) ^ Y;
}
- C ^= RK[4];
- D ^= RK[5];
- A ^= RK[6];
- B ^= RK[7];
+ C ^= m_RK[4];
+ D ^= m_RK[5];
+ A ^= m_RK[6];
+ B ^= m_RK[7];
store_le(out, C, D, A, B);
@@ -72,42 +72,42 @@ void Twofish::decrypt_n(const byte in[], byte out[], size_t blocks) const
{
for(size_t i = 0; i != blocks; ++i)
{
- u32bit A = load_le<u32bit>(in, 0) ^ RK[4];
- u32bit B = load_le<u32bit>(in, 1) ^ RK[5];
- u32bit C = load_le<u32bit>(in, 2) ^ RK[6];
- u32bit D = load_le<u32bit>(in, 3) ^ RK[7];
+ 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];
for(size_t j = 0; j != 16; j += 2)
{
u32bit X, Y;
- X = SB[ get_byte(3, A)] ^ SB[256+get_byte(2, A)] ^
- SB[512+get_byte(1, A)] ^ SB[768+get_byte(0, A)];
- Y = SB[ get_byte(0, B)] ^ SB[256+get_byte(3, B)] ^
- SB[512+get_byte(2, B)] ^ SB[768+get_byte(1, B)];
+ X = m_SB[ get_byte(3, A)] ^ m_SB[256+get_byte(2, A)] ^
+ m_SB[512+get_byte(1, A)] ^ m_SB[768+get_byte(0, A)];
+ Y = m_SB[ get_byte(0, B)] ^ m_SB[256+get_byte(3, B)] ^
+ m_SB[512+get_byte(2, B)] ^ m_SB[768+get_byte(1, B)];
X += Y;
- Y += X + RK[39 - 2*j];
- X += RK[38 - 2*j];
+ Y += X + m_RK[39 - 2*j];
+ X += m_RK[38 - 2*j];
C = rotate_left(C, 1) ^ X;
D = rotate_right(D ^ Y, 1);
- X = SB[ get_byte(3, C)] ^ SB[256+get_byte(2, C)] ^
- SB[512+get_byte(1, C)] ^ SB[768+get_byte(0, C)];
- Y = SB[ get_byte(0, D)] ^ SB[256+get_byte(3, D)] ^
- SB[512+get_byte(2, D)] ^ SB[768+get_byte(1, D)];
+ X = m_SB[ get_byte(3, C)] ^ m_SB[256+get_byte(2, C)] ^
+ m_SB[512+get_byte(1, C)] ^ m_SB[768+get_byte(0, C)];
+ Y = m_SB[ get_byte(0, D)] ^ m_SB[256+get_byte(3, D)] ^
+ m_SB[512+get_byte(2, D)] ^ m_SB[768+get_byte(1, D)];
X += Y;
- Y += X + RK[37 - 2*j];
- X += RK[36 - 2*j];
+ Y += X + m_RK[37 - 2*j];
+ X += m_RK[36 - 2*j];
A = rotate_left(A, 1) ^ X;
B = rotate_right(B ^ Y, 1);
}
- C ^= RK[0];
- D ^= RK[1];
- A ^= RK[2];
- B ^= RK[3];
+ C ^= m_RK[0];
+ D ^= m_RK[1];
+ A ^= m_RK[2];
+ B ^= m_RK[3];
store_le(out, C, D, A, B);
@@ -121,8 +121,8 @@ void Twofish::decrypt_n(const byte in[], byte out[], size_t blocks) const
*/
void Twofish::key_schedule(const byte key[], size_t length)
{
- SB.resize(1024);
- RK.resize(40);
+ m_SB.resize(1024);
+ m_RK.resize(40);
secure_vector<byte> S(16);
@@ -133,10 +133,10 @@ void Twofish::key_schedule(const byte key[], size_t length)
{
for(size_t i = 0; i != 256; ++i)
{
- SB[ i] = MDS0[Q0[Q0[i]^S[ 0]]^S[ 4]];
- SB[256+i] = MDS1[Q0[Q1[i]^S[ 1]]^S[ 5]];
- SB[512+i] = MDS2[Q1[Q0[i]^S[ 2]]^S[ 6]];
- SB[768+i] = MDS3[Q1[Q1[i]^S[ 3]]^S[ 7]];
+ m_SB[ i] = MDS0[Q0[Q0[i]^S[ 0]]^S[ 4]];
+ m_SB[256+i] = MDS1[Q0[Q1[i]^S[ 1]]^S[ 5]];
+ m_SB[512+i] = MDS2[Q1[Q0[i]^S[ 2]]^S[ 6]];
+ m_SB[768+i] = MDS3[Q1[Q1[i]^S[ 3]]^S[ 7]];
}
for(size_t i = 0; i != 40; i += 2)
@@ -152,18 +152,18 @@ void Twofish::key_schedule(const byte key[], size_t length)
Y = rotate_left(Y, 8);
X += Y; Y += X;
- RK[i] = X;
- RK[i+1] = rotate_left(Y, 9);
+ m_RK[i] = X;
+ m_RK[i+1] = rotate_left(Y, 9);
}
}
else if(length == 24)
{
for(size_t i = 0; i != 256; ++i)
{
- SB[ i] = MDS0[Q0[Q0[Q1[i]^S[ 0]]^S[ 4]]^S[ 8]];
- SB[256+i] = MDS1[Q0[Q1[Q1[i]^S[ 1]]^S[ 5]]^S[ 9]];
- SB[512+i] = MDS2[Q1[Q0[Q0[i]^S[ 2]]^S[ 6]]^S[10]];
- SB[768+i] = MDS3[Q1[Q1[Q0[i]^S[ 3]]^S[ 7]]^S[11]];
+ m_SB[ i] = MDS0[Q0[Q0[Q1[i]^S[ 0]]^S[ 4]]^S[ 8]];
+ m_SB[256+i] = MDS1[Q0[Q1[Q1[i]^S[ 1]]^S[ 5]]^S[ 9]];
+ m_SB[512+i] = MDS2[Q1[Q0[Q0[i]^S[ 2]]^S[ 6]]^S[10]];
+ m_SB[768+i] = MDS3[Q1[Q1[Q0[i]^S[ 3]]^S[ 7]]^S[11]];
}
for(size_t i = 0; i != 40; i += 2)
@@ -179,18 +179,18 @@ void Twofish::key_schedule(const byte key[], size_t length)
Y = rotate_left(Y, 8);
X += Y; Y += X;
- RK[i] = X;
- RK[i+1] = rotate_left(Y, 9);
+ m_RK[i] = X;
+ m_RK[i+1] = rotate_left(Y, 9);
}
}
else if(length == 32)
{
for(size_t i = 0; i != 256; ++i)
{
- SB[ i] = MDS0[Q0[Q0[Q1[Q1[i]^S[ 0]]^S[ 4]]^S[ 8]]^S[12]];
- SB[256+i] = MDS1[Q0[Q1[Q1[Q0[i]^S[ 1]]^S[ 5]]^S[ 9]]^S[13]];
- SB[512+i] = MDS2[Q1[Q0[Q0[Q0[i]^S[ 2]]^S[ 6]]^S[10]]^S[14]];
- SB[768+i] = MDS3[Q1[Q1[Q0[Q1[i]^S[ 3]]^S[ 7]]^S[11]]^S[15]];
+ m_SB[ i] = MDS0[Q0[Q0[Q1[Q1[i]^S[ 0]]^S[ 4]]^S[ 8]]^S[12]];
+ m_SB[256+i] = MDS1[Q0[Q1[Q1[Q0[i]^S[ 1]]^S[ 5]]^S[ 9]]^S[13]];
+ m_SB[512+i] = MDS2[Q1[Q0[Q0[Q0[i]^S[ 2]]^S[ 6]]^S[10]]^S[14]];
+ 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)
@@ -206,8 +206,8 @@ void Twofish::key_schedule(const byte key[], size_t length)
Y = rotate_left(Y, 8);
X += Y; Y += X;
- RK[i] = X;
- RK[i+1] = rotate_left(Y, 9);
+ m_RK[i] = X;
+ m_RK[i+1] = rotate_left(Y, 9);
}
}
}
@@ -238,8 +238,8 @@ void Twofish::rs_mul(byte S[4], byte key, size_t offset)
*/
void Twofish::clear()
{
- zap(SB);
- zap(RK);
+ zap(m_SB);
+ zap(m_RK);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 08:29:40 +0000