void KeccakP800_OverwriteBytes(void *argState, const unsigned char *data, unsigned int offset, unsigned int length)
{
#if (PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN)
#ifdef KeccakP800_useLaneComplementing
unsigned int sizeLeft = length;
unsigned int lanePosition = offset/4;
unsigned int offsetInLane = offset%4;
const unsigned char *curData = data;
UINT32 *state = (UINT32*)argState;
if ((sizeLeft > 0) && (offsetInLane != 0)) {
unsigned int bytesInLane = 4 - offsetInLane;
unsigned char laneComplement = (unsigned char)KeccakP800LaneComplement[lanePosition];
if (bytesInLane > sizeLeft)
bytesInLane = sizeLeft;
sizeLeft -= bytesInLane;
do {
*(((unsigned char *)&state[lanePosition] + offsetInLane)) = *curData++ ^ laneComplement;
++offsetInLane;
}
while ( --bytesInLane != 0);
lanePosition++;
}
while(sizeLeft >= 4) {
state[lanePosition] = READ32_UNALIGNED( curData ) ^ KeccakP800LaneComplement[lanePosition];
sizeLeft -= 4;
lanePosition++;
curData += 4;
}
if (sizeLeft > 0) {
unsigned char laneComplement = (unsigned char)KeccakP800LaneComplement[lanePosition];
unsigned int i;
for ( i = 0; i < sizeLeft; ++i ) {
*((unsigned char *)&state[lanePosition] + i) = *curData++ ^ laneComplement;
}
}
#else
memcpy((unsigned char*)argState+offset, data, length);
#endif
#else
#error "Not yet implemented"
#endif
}
void KeccakF800_StateXORBytes(void *argState, const unsigned char *data, unsigned int offset, unsigned int length)
{
#if (PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN)
unsigned int sizeLeft = length;
unsigned int lanePosition = offset/KeccakF_laneInBytes;
unsigned int offsetInLane = offset%KeccakF_laneInBytes;
const unsigned char *curData = data;
UINT32 *state = argState;
if ((sizeLeft > 0) && (offsetInLane != 0)) {
unsigned int bytesInLane = KeccakF_laneInBytes - offsetInLane;
UINT32 lane = 0;
if (bytesInLane > sizeLeft)
bytesInLane = sizeLeft;
memcpy((unsigned char*)&lane + offsetInLane, curData, bytesInLane);
state[lanePosition] ^= lane;
sizeLeft -= bytesInLane;
lanePosition++;
curData += bytesInLane;
}
while(sizeLeft >= KeccakF_laneInBytes) {
state[lanePosition] ^= READ32_UNALIGNED( curData );
sizeLeft -= KeccakF_laneInBytes;
lanePosition++;
curData += KeccakF_laneInBytes;
}
if (sizeLeft > 0) {
UINT32 lane = 0;
memcpy(&lane, curData, sizeLeft);
state[lanePosition] ^= lane;
}
#else
#error "Not yet implemented"
#endif
}
void Xoodoo_AddBytes(void *argState, const unsigned char *data, unsigned int offset, unsigned int length)
{
#if (PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN)
unsigned int sizeLeft = length;
unsigned int lanePosition = offset/4;
unsigned int offsetInLane = offset%4;
const unsigned char *curData = data;
uint32_t *state = (uint32_t*)argState;
state += lanePosition;
if ((sizeLeft > 0) && (offsetInLane != 0)) {
unsigned int bytesInLane = 4 - offsetInLane;
uint32_t lane = 0;
if (bytesInLane > sizeLeft)
bytesInLane = sizeLeft;
memcpy((unsigned char*)&lane + offsetInLane, curData, bytesInLane);
*state++ ^= lane;
sizeLeft -= bytesInLane;
curData += bytesInLane;
}
while(sizeLeft >= 4) {
*state++ ^= READ32_UNALIGNED( curData );
sizeLeft -= 4;
curData += 4;
}
if (sizeLeft > 0) {
uint32_t lane = 0;
memcpy(&lane, curData, sizeLeft);
*state ^= lane;
}
#else
#error "Not yet implemented"
#endif
}
void KeccakF800_StateExtractAndXORBytes(const void *argState, unsigned char *data, unsigned int offset, unsigned int length)
{
#if (PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN)
#ifdef UseLaneComplementing
unsigned int sizeLeft = length;
unsigned int lanePosition = offset/KeccakF_laneInBytes;
unsigned int offsetInLane = offset%KeccakF_laneInBytes;
unsigned char *curData = data;
const UINT32 *state = (UINT32*)argState;
if ((sizeLeft > 0) && (offsetInLane != 0)) {
unsigned int bytesInLane = KeccakF_laneInBytes - offsetInLane;
unsigned char laneComplement = (unsigned char)KeccakF800LaneComplement[lanePosition];
if (bytesInLane > sizeLeft)
bytesInLane = sizeLeft;
sizeLeft -= bytesInLane;
do {
*curData++ ^= *(((unsigned char *)&state[lanePosition]) + offsetInLane) ^ laneComplement;
++offsetInLane;
}
while ( --bytesInLane != 0);
lanePosition++;
}
while(sizeLeft >= KeccakF_laneInBytes) {
WRITE32_UNALIGNED( curData, READ32_UNALIGNED( curData ) ^ state[lanePosition] ^ KeccakF800LaneComplement[lanePosition] );
sizeLeft -= KeccakF_laneInBytes;
lanePosition++;
curData += KeccakF_laneInBytes;
}
if (sizeLeft > 0) {
unsigned char laneComplement = (unsigned char)KeccakF800LaneComplement[lanePosition];
unsigned int i;
for ( i = 0; i < sizeLeft; ++i ) {
*curData++ ^= *(((unsigned char *)&state[lanePosition]) + i) ^ laneComplement;
}
}
#else
unsigned int sizeLeft = length;
unsigned int lanePosition = offset/KeccakF_laneInBytes;
unsigned int offsetInLane = offset%KeccakF_laneInBytes;
unsigned char *curData = data;
const UINT32 *state = (UINT32*)argState;
if ((sizeLeft > 0) && (offsetInLane != 0)) {
unsigned int bytesInLane = KeccakF_laneInBytes - offsetInLane;
if (bytesInLane > sizeLeft)
bytesInLane = sizeLeft;
sizeLeft -= bytesInLane;
do {
*curData++ ^= *(((unsigned char *)&state[lanePosition]) + offsetInLane);
++offsetInLane;
}
while ( --bytesInLane != 0);
lanePosition++;
}
while(sizeLeft >= KeccakF_laneInBytes) {
WRITE32_UNALIGNED( curData, READ32_UNALIGNED( curData ) ^ state[lanePosition] );
sizeLeft -= KeccakF_laneInBytes;
lanePosition++;
curData += KeccakF_laneInBytes;
}
if (sizeLeft > 0) {
unsigned int i;
for ( i = 0; i < sizeLeft; ++i ) {
*curData++ ^= *(((unsigned char *)&state[lanePosition]) + i);
}
}
#endif
#else
#error "Not yet implemented"
#endif
}
