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- (void)updateWithBuffer: (const char*)buf
ofSize: (size_t)size
{
if (size == 0)
return;
if (calculated)
@throw [OFHashAlreadyCalculatedException newWithClass: isa];
sha1_update(state, &count, buffer, buf, size);
}
- (uint8_t*)digest
{
size_t i;
char finalcount[8];
if (calculated)
return digest;
for (i = 0; i < 8; i++)
/* Endian independent */
finalcount[i] = (char)((count >> ((7 - (i & 7)) * 8)) & 255);
sha1_update(state, &count, buffer, "\200", 1);
while ((count & 504) != 448)
sha1_update(state, &count, buffer, "\0", 1);
/* Should cause a sha1_transform() */
sha1_update(state, &count, buffer, finalcount, 8);
for (i = 0; i < OF_SHA1_DIGEST_SIZE; i++)
digest[i] = (char)((state[i >> 2] >>
((3 - (i & 3)) * 8)) & 255);
calculated = YES;
return digest;
}
@end
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- (void)updateWithBuffer: (const char*)buf
ofSize: (size_t)size
{
if (size == 0)
return;
if (isCalculated)
@throw [OFHashAlreadyCalculatedException newWithClass: isa];
sha1_update(state, &count, buffer, buf, size);
}
- (uint8_t*)digest
{
size_t i;
char finalcount[8];
if (isCalculated)
return digest;
for (i = 0; i < 8; i++)
/* Endian independent */
finalcount[i] = (char)((count >> ((7 - (i & 7)) * 8)) & 255);
sha1_update(state, &count, buffer, "\200", 1);
while ((count & 504) != 448)
sha1_update(state, &count, buffer, "\0", 1);
/* Should cause a sha1_transform() */
sha1_update(state, &count, buffer, finalcount, 8);
for (i = 0; i < OF_SHA1_DIGEST_SIZE; i++)
digest[i] = (char)((state[i >> 2] >>
((3 - (i & 3)) * 8)) & 255);
isCalculated = YES;
return digest;
}
@end
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