HashReturn Update(hashState *state, const BitSequence *data, DataLength databitlen)
{
u_int32_t *data32, *p256;
u_int32_t XL32, XH32, TempEven32, TempOdd32;
u_int64_t *data64, *p512;
u_int64_t XL64, XH64, TempEven64, TempOdd64;
int LastBytes;
switch(state->hashbitlen)
{
case 224:
case 256:
if (state->unprocessed_bits > 0)
{
if ( state->unprocessed_bits + databitlen > BlueMidnightWish256_BLOCK_SIZE * 8)
{
return BAD_CONSECUTIVE_CALL_TO_UPDATE;
}
else
{
LastBytes = (int)databitlen >> 3; // LastBytes = databitlen / 8
memcpy(hashState256(state)->LastPart + (state->unprocessed_bits >> 3), data, LastBytes );
state->unprocessed_bits += (int)databitlen;
databitlen = state->unprocessed_bits;
data32 = (u_int32_t *)hashState256(state)->LastPart;
}
}
else
data32 = (u_int32_t *)data;
p256 = hashState256(state)->DoublePipe;
while (databitlen >= BlueMidnightWish256_BLOCK_SIZE * 8)
{
databitlen -= BlueMidnightWish256_BLOCK_SIZE * 8;
// #1 Between comments #1 and #2 add algorithm specifics
state->bits_processed += BlueMidnightWish256_BLOCK_SIZE * 8;
Compression256();
data32 += 16;
}
state->unprocessed_bits = (int)databitlen;
if (databitlen > 0)
{
LastBytes = ((~(((- (int)databitlen)>>3) & 0x01ff)) + 1) & 0x01ff; // LastBytes = Ceil(databitlen / 8)
memcpy(hashState256(state)->LastPart, data32, LastBytes );
}
int bmwUpdate(bmwParam *sp, const byte *data, size_t size)
{
uint64_t databitlen = 8 * size;
uint32_t *data32, *p256;
uint32_t XL32, XH32, TempEven32, TempOdd32;
uint32_t p256_00, p256_01, p256_02, p256_03, p256_04, p256_05, p256_06, p256_07;
uint32_t p256_08, p256_09, p256_10, p256_11, p256_12, p256_13, p256_14, p256_15;
uint32_t p256_16, p256_17, p256_18, p256_19, p256_20, p256_21, p256_22, p256_23;
uint32_t p256_24, p256_25, p256_26, p256_27, p256_28, p256_29, p256_30, p256_31;
uint64_t *data64, *p512;
uint64_t XL64, XH64, TempEven64, TempOdd64;
uint64_t p512_00, p512_01, p512_02, p512_03, p512_04, p512_05, p512_06, p512_07;
uint64_t p512_08, p512_09, p512_10, p512_11, p512_12, p512_13, p512_14, p512_15;
uint64_t p512_16, p512_17, p512_18, p512_19, p512_20, p512_21, p512_22, p512_23;
uint64_t p512_24, p512_25, p512_26, p512_27, p512_28, p512_29, p512_30, p512_31;
int ret = SUCCESS;
int LastBytes;
switch (sp->hashbitlen) {
case 224:
case 256:
if (sp->unprocessed_bits > 0) {
if ( sp->unprocessed_bits + databitlen > BlueMidnightWish256_BLOCK_SIZE * 8) {
ret = BAD_CONSECUTIVE_CALL_TO_UPDATE;
break;
}
LastBytes = (int)databitlen >> 3; // LastBytes = databitlen / 8
memcpy(bmw256(sp)->LastPart + (sp->unprocessed_bits >> 3), data, LastBytes );
sp->unprocessed_bits += (int)databitlen;
databitlen = sp->unprocessed_bits;
data32 = (uint32_t *)bmw256(sp)->LastPart;
} else
data32 = (uint32_t *)data;
p256 = bmw256(sp)->DoublePipe;
while (databitlen >= BlueMidnightWish256_BLOCK_SIZE * 8) {
databitlen -= BlueMidnightWish256_BLOCK_SIZE * 8;
sp->bits_processed += BlueMidnightWish256_BLOCK_SIZE * 8;
Compression256();
data32 += 16;
}
sp->unprocessed_bits = (int)databitlen;
if (databitlen > 0) {
LastBytes = ((~(((- (int)databitlen)>>3) & 0x01ff)) + 1) & 0x01ff; // LastBytes = Ceil(databitlen / 8)
memcpy(bmw256(sp)->LastPart, data32, LastBytes );
}
