diff options
| -rw-r--r-- | src/add_tweakeyunrolled/tweakey.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/add_tweakeyunrolled/tweakey.c b/src/add_tweakeyunrolled/tweakey.c index 7f80a2a..cad50da 100644 --- a/src/add_tweakeyunrolled/tweakey.c +++ b/src/add_tweakeyunrolled/tweakey.c @@ -135,11 +135,13 @@ static void _multiply_MR(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 x_MR_4 = x[5] ^ x[6]<<3; + y[0] = x[2]; y[1] = x[3] ^ x[4]>>3; - y[2] = x[4] ^ x[5]>>3 ^ _M3(x[6]); - y[3] = x[5] ^ x[6]<<3; - y[4] = x[3]<<2 ^ x[6] ^ x[7]<<3; + y[2] = x[4] ^ x_MR_4>>3; + y[3] = x_MR_4; + y[4] = x[3]<<2 ^ x[6] ^ x[7]<<3; y[5] = x[4]<<2 ^ x[7]; y[6] = x[0]; y[7] = x[1]; |