cpython: 68df416e94ba (original) (raw)

--- a/Modules/_sha3/kcp/KeccakP-1600-inplace32BI.c +++ b/Modules/_sha3/kcp/KeccakP-1600-inplace32BI.c @@ -188,17 +188,18 @@ void KeccakP1600_AddLanes(void *state, c unsigned int lanePosition; for(lanePosition=0; lanePosition<laneCount; lanePosition++) { UINT8 laneAsBytes[8];

•    UINT32 low, high, temp, temp0, temp1;[](#l1.7)

•    UINT32 *stateAsHalfLanes;[](#l1.8)
     memcpy(laneAsBytes, data+lanePosition*8, 8);[](#l1.9)

•    UINT32 low = laneAsBytes[0][](#l1.10)

•    low = laneAsBytes[0][](#l1.11)
         | ((UINT32)(laneAsBytes[1]) << 8)[](#l1.12)
         | ((UINT32)(laneAsBytes[2]) << 16)[](#l1.13)
         | ((UINT32)(laneAsBytes[3]) << 24);[](#l1.14)

•    UINT32 high = laneAsBytes[4][](#l1.15)

•    high = laneAsBytes[4][](#l1.16)
         | ((UINT32)(laneAsBytes[5]) << 8)[](#l1.17)
         | ((UINT32)(laneAsBytes[6]) << 16)[](#l1.18)
         | ((UINT32)(laneAsBytes[7]) << 24);[](#l1.19)

•    UINT32 even, odd, temp, temp0, temp1;[](#l1.20)

•    UINT32 *stateAsHalfLanes = (UINT32*)state;[](#l1.21)

•    stateAsHalfLanes = (UINT32*)state;[](#l1.22)
     toBitInterleavingAndXOR(low, high, stateAsHalfLanes[lanePosition*2+0], stateAsHalfLanes[lanePosition*2+1], temp, temp0, temp1);[](#l1.23)

  }

#endif @@ -243,17 +244,18 @@ void KeccakP1600_OverwriteLanes(void *st unsigned int lanePosition; for(lanePosition=0; lanePosition<laneCount; lanePosition++) { UINT8 laneAsBytes[8];

•    UINT32 low, high, temp, temp0, temp1;[](#l1.30)

•    UINT32 *stateAsHalfLanes;[](#l1.31)
     memcpy(laneAsBytes, data+lanePosition*8, 8);[](#l1.32)

•    UINT32 low = laneAsBytes[0][](#l1.33)

•    low = laneAsBytes[0][](#l1.34)
         | ((UINT32)(laneAsBytes[1]) << 8)[](#l1.35)
         | ((UINT32)(laneAsBytes[2]) << 16)[](#l1.36)
         | ((UINT32)(laneAsBytes[3]) << 24);[](#l1.37)

•    UINT32 high = laneAsBytes[4][](#l1.38)

•    high = laneAsBytes[4][](#l1.39)
         | ((UINT32)(laneAsBytes[5]) << 8)[](#l1.40)
         | ((UINT32)(laneAsBytes[6]) << 16)[](#l1.41)
         | ((UINT32)(laneAsBytes[7]) << 24);[](#l1.42)

•    UINT32 even, odd, temp, temp0, temp1;[](#l1.43)

•    UINT32 *stateAsHalfLanes = (UINT32*)state;[](#l1.44)

•    stateAsHalfLanes = (UINT32*)state;[](#l1.45)
     toBitInterleavingAndSet(low, high, stateAsHalfLanes[lanePosition*2+0], stateAsHalfLanes[lanePosition*2+1], temp, temp0, temp1);[](#l1.46)

  }

#endif @@ -406,8 +408,8 @@ void KeccakP1600_ExtractAndAddLanes(cons for(lanePosition=0; lanePosition<laneCount; lanePosition++) { UINT32 stateAsHalfLanes = (UINT32)state; UINT32 low, high, temp, temp0, temp1;

•    UINT8 laneAsBytes[8];[](#l1.53)
     fromBitInterleaving(stateAsHalfLanes[lanePosition*2], stateAsHalfLanes[lanePosition*2+1], low, high, temp, temp0, temp1);[](#l1.54)

•    UINT8 laneAsBytes[8];[](#l1.55)
     laneAsBytes[0] = low & 0xFF;[](#l1.56)
     laneAsBytes[1] = (low >> 8) & 0xFF;[](#l1.57)
     laneAsBytes[2] = (low >> 16) & 0xFF;[](#l1.58)