diff options
Diffstat (limited to 'src/ref/tweakey.c')
| -rw-r--r-- | src/ref/tweakey.c | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/src/ref/tweakey.c b/src/ref/tweakey.c index 7019037..b1f349e 100644 --- a/src/ref/tweakey.c +++ b/src/ref/tweakey.c @@ -62,63 +62,63 @@ void tweakey_state_extract( } -static void _multiply_M(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_M(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - Y[7] = X[6]; - Y[6] = X[5]; - Y[5] = X[5]<<3 ^ X[4]; - Y[4] = X[4]>>3 ^ X[3]; - Y[3] = X[2]; - Y[2] = X[6]<<2 ^ X[1]; - Y[1] = X[0]; - Y[0] = X[7]; + y[7] = x[6]; + y[6] = x[5]; + y[5] = x[5]<<3 ^ x[4]; + y[4] = x[4]>>3 ^ x[3]; + y[3] = x[2]; + y[2] = x[6]<<2 ^ x[1]; + y[1] = x[0]; + y[0] = x[7]; } -static void _multiply_M2(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_M2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - uint8_t M_X[LANE_BYTES]; - _multiply_M(X, M_X); - _multiply_M(M_X, Y); + uint8_t M_x[LANE_BYTES]; + _multiply_M(x, M_x); + _multiply_M(M_x, y); } -static void _multiply_M3(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_M3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - uint8_t M_X[LANE_BYTES]; - uint8_t M2_X[LANE_BYTES]; - _multiply_M(X, M_X); - _multiply_M(M_X, M2_X); - _multiply_M(M2_X, Y); + uint8_t M_x[LANE_BYTES]; + uint8_t M2_x[LANE_BYTES]; + _multiply_M(x, M_x); + _multiply_M(M_x, M2_x); + _multiply_M(M2_x, y); } -static void _multiply_MR(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_MR(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - Y[0] = X[1]; - Y[1] = X[2]; - Y[2] = X[3] ^ X[4]>>3; - Y[3] = X[4]; - Y[4] = X[5] ^ X[6]<<3; - Y[5] = X[3]<<2 ^ X[6]; - Y[6] = X[7]; - Y[7] = X[0]; + y[0] = x[1]; + y[1] = x[2]; + y[2] = x[3] ^ x[4]>>3; + y[3] = x[4]; + y[4] = x[5] ^ x[6]<<3; + y[5] = x[3]<<2 ^ x[6]; + y[6] = x[7]; + y[7] = x[0]; } -static void _multiply_MR2(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_MR2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - uint8_t MR_X[LANE_BYTES]; - _multiply_MR(X, MR_X); - _multiply_MR(MR_X, Y); + uint8_t MR_x[LANE_BYTES]; + _multiply_MR(x, MR_x); + _multiply_MR(MR_x, y); } -static void _multiply_MR3(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]) +static void _multiply_MR3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) { - uint8_t MR_X[LANE_BYTES]; - uint8_t MR2_X[LANE_BYTES]; - _multiply_MR(X, MR_X); - _multiply_MR(MR_X, MR2_X); - _multiply_MR(MR2_X, Y); + uint8_t MR_x[LANE_BYTES]; + uint8_t MR2_x[LANE_BYTES]; + _multiply_MR(x, MR_x); + _multiply_MR(MR_x, MR2_x); + _multiply_MR(MR2_x, y); } -typedef void (*matrix_multiplication)(const uint8_t X[LANE_BYTES], uint8_t Y[LANE_BYTES]); +typedef void (*matrix_multiplication)(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]); static const matrix_multiplication ALPHAS[6] = { _multiply_M, |