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};
static OF_INLINE void
byteSwapVectorIfBE(uint32_t *vector, uint_fast8_t length)
{
#ifdef OF_BIG_ENDIAN
for (uint_fast8_t i = 0; i < length; i++)
vector[i] = OF_BSWAP32(vector[i]);
#endif
}
static void
processBlock(uint32_t *state, uint32_t *buffer)
{
uint32_t new[4];
uint_fast8_t i = 0;
new[0] = state[0];
new[1] = state[1];
new[2] = state[2];
new[3] = state[3];
byteSwapVectorIfBE(buffer, 16);
#define LOOP_BODY(f) \
{ \
uint32_t tmp = new[3]; \
tmp = new[3]; \
new[0] += f(new[1], new[2], new[3]) + \
buffer[wordOrder[i]] + table[i]; \
new[3] = new[2]; \
new[2] = new[1]; \
new[1] += OF_ROL(new[0], rotateBits[(i % 4) + (i / 16) * 4]); \
new[0] = tmp;\
}
for (; i < 16; i++)
LOOP_BODY(F)
for (; i < 32; i++)
LOOP_BODY(G)
for (; i < 48; i++)
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};
static OF_INLINE void
byteSwapVectorIfBE(uint32_t *vector, uint_fast8_t length)
{
#ifdef OF_BIG_ENDIAN
for (uint_fast8_t i = 0; i < length; i++)
vector[i] = OFByteSwap32(vector[i]);
#endif
}
static void
processBlock(uint32_t *state, uint32_t *buffer)
{
uint32_t new[4];
uint_fast8_t i = 0;
new[0] = state[0];
new[1] = state[1];
new[2] = state[2];
new[3] = state[3];
byteSwapVectorIfBE(buffer, 16);
#define LOOP_BODY(f) \
{ \
uint32_t tmp = new[3]; \
tmp = new[3]; \
new[0] += f(new[1], new[2], new[3]) + \
buffer[wordOrder[i]] + table[i]; \
new[3] = new[2]; \
new[2] = new[1]; \
new[1] += OFRotateLeft(new[0], \
rotateBits[(i % 4) + (i / 16) * 4]); \
new[0] = tmp; \
}
for (; i < 16; i++)
LOOP_BODY(F)
for (; i < 32; i++)
LOOP_BODY(G)
for (; i < 48; i++)
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- (const unsigned char *)digest
{
if (_calculated)
return (const unsigned char *)_iVars->state;
_iVars->buffer.bytes[_iVars->bufferLength] = 0x80;
of_explicit_memset(_iVars->buffer.bytes + _iVars->bufferLength + 1, 0,
64 - _iVars->bufferLength - 1);
if (_iVars->bufferLength >= 56) {
processBlock(_iVars->state, _iVars->buffer.words);
of_explicit_memset(_iVars->buffer.bytes, 0, 64);
}
_iVars->buffer.words[14] =
OF_BSWAP32_IF_BE((uint32_t)(_iVars->bits & 0xFFFFFFFF));
_iVars->buffer.words[15] =
OF_BSWAP32_IF_BE((uint32_t)(_iVars->bits >> 32));
processBlock(_iVars->state, _iVars->buffer.words);
of_explicit_memset(&_iVars->buffer, 0, sizeof(_iVars->buffer));
byteSwapVectorIfBE(_iVars->state, 4);
_calculated = true;
return (const unsigned char *)_iVars->state;
}
- (void)reset
{
[self of_resetState];
_iVars->bits = 0;
of_explicit_memset(&_iVars->buffer, 0, sizeof(_iVars->buffer));
_iVars->bufferLength = 0;
_calculated = false;
}
@end
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- (const unsigned char *)digest
{
if (_calculated)
return (const unsigned char *)_iVars->state;
_iVars->buffer.bytes[_iVars->bufferLength] = 0x80;
OFZeroMemory(_iVars->buffer.bytes + _iVars->bufferLength + 1,
64 - _iVars->bufferLength - 1);
if (_iVars->bufferLength >= 56) {
processBlock(_iVars->state, _iVars->buffer.words);
OFZeroMemory(_iVars->buffer.bytes, 64);
}
_iVars->buffer.words[14] =
OFToLittleEndian32((uint32_t)(_iVars->bits & 0xFFFFFFFF));
_iVars->buffer.words[15] =
OFToLittleEndian32((uint32_t)(_iVars->bits >> 32));
processBlock(_iVars->state, _iVars->buffer.words);
OFZeroMemory(&_iVars->buffer, sizeof(_iVars->buffer));
byteSwapVectorIfBE(_iVars->state, 4);
_calculated = true;
return (const unsigned char *)_iVars->state;
}
- (void)reset
{
[self of_resetState];
_iVars->bits = 0;
OFZeroMemory(&_iVars->buffer, sizeof(_iVars->buffer));
_iVars->bufferLength = 0;
_calculated = false;
}
@end
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