Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-11-04 08:30:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

faster CipherBlock XOR implementation for non-AVX

Browse source
This commit is contained in:
orignal 2018-10-27 18:41:05 -04:00
parent d034dab265
commit a309eb9f3c
1 changed files with 11 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

14
libi2pd/Crypto.h
View file

@ -124,9 +124,17 @@ namespace crypto
else
#endif
{
// TODO: implement it better
for (int i = 0; i < 16; i++)
buf[i] ^= other.buf[i];
if (((size_t)buf | (size_t)other.buf) & 0x03) // multiple of 4 ?
{
// we are good to cast to uint32_t *
for (int i = 0; i < 4; i++)
((uint32_t *)buf)[i] ^= ((uint32_t *)other.buf)[i];
}
else
{
for (int i = 0; i < 16; i++)
buf[i] ^= other.buf[i];
}
}
}
};