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bits[1] += size >> 29;
/* Bytes already in shsInfo->data */
t = (t >> 3) & 0x3F;
/* Handle any leading odd-sized chunks */
if (t) {
uint8_t *p = in + t;
t = 64 - t;
if (size < t) {
memcpy(p, buffer, size);
return;
}
memcpy(p, buffer, t);
of_bswap32_vec_if_be((uint32_t*)in, 16);
md5_transform(buf, (uint32_t*)in);
buffer += t;
size -= t;
}
/* Process data in 64-byte chunks */
while (size >= 64) {
memcpy(in, buffer, 64);
of_bswap32_vec_if_be((uint32_t*)in, 16);
md5_transform(buf, (uint32_t*)in);
buffer += 64;
size -= 64;
}
/* Handle any remaining bytes of data. */
memcpy(in, buffer, size);
}
- (uint8_t*)digest
{
uint8_t *p;
size_t count;
if (isCalculated)
return (uint8_t*)buf;
/* Compute number of bytes mod 64 */
count = (bits[0] >> 3) & 0x3F;
/*
* Set the first char of padding to 0x80. This is safe since there is
* always at least one byte free
*/
p = in + count;
*p++ = 0x80;
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
/* Pad out to 56 mod 64 */
if (count < 8) {
/* Two lots of padding: Pad the first block to 64 bytes */
memset(p, 0, count);
of_bswap32_vec_if_be((uint32_t*)in, 16);
md5_transform(buf, (uint32_t*)in);
/* Now fill the next block with 56 bytes */
memset(in, 0, 56);
} else {
/* Pad block to 56 bytes */
memset(p, 0, count - 8);
}
of_bswap32_vec_if_be((uint32_t*)in, 14);
/* Append length in bits and transform */
((uint32_t*)in)[14] = bits[0];
((uint32_t*)in)[15] = bits[1];
md5_transform(buf, (uint32_t*)in);
of_bswap32_vec_if_be(buf, 4);
isCalculated = YES;
return (uint8_t*)buf;
}
@end
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bits[1] += size >> 29;
/* Bytes already in shsInfo->data */
t = (t >> 3) & 0x3F;
/* Handle any leading odd-sized chunks */
if (t) {
uint8_t *p = in.u8 + t;
t = 64 - t;
if (size < t) {
memcpy(p, buffer, size);
return;
}
memcpy(p, buffer, t);
of_bswap32_vec_if_be(in.u32, 16);
md5_transform(buf, in.u32);
buffer += t;
size -= t;
}
/* Process data in 64-byte chunks */
while (size >= 64) {
memcpy(in.u8, buffer, 64);
of_bswap32_vec_if_be(in.u32, 16);
md5_transform(buf, in.u32);
buffer += 64;
size -= 64;
}
/* Handle any remaining bytes of data. */
memcpy(in.u8, buffer, size);
}
- (uint8_t*)digest
{
uint8_t *p;
size_t count;
if (isCalculated)
return (uint8_t*)buf;
/* Compute number of bytes mod 64 */
count = (bits[0] >> 3) & 0x3F;
/*
* Set the first char of padding to 0x80. This is safe since there is
* always at least one byte free
*/
p = in.u8 + count;
*p++ = 0x80;
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
/* Pad out to 56 mod 64 */
if (count < 8) {
/* Two lots of padding: Pad the first block to 64 bytes */
memset(p, 0, count);
of_bswap32_vec_if_be(in.u32, 16);
md5_transform(buf, in.u32);
/* Now fill the next block with 56 bytes */
memset(in.u8, 0, 56);
} else {
/* Pad block to 56 bytes */
memset(p, 0, count - 8);
}
of_bswap32_vec_if_be(in.u32, 14);
/* Append length in bits and transform */
in.u32[14] = bits[0];
in.u32[15] = bits[1];
md5_transform(buf, in.u32);
of_bswap32_vec_if_be(buf, 4);
isCalculated = YES;
return (uint8_t*)buf;
}
@end
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