Strong Encryption
Andy Polyakov
appro at fy.chalmers.se
Sat Jul 10 03:06:05 EST 2004
>>Heh, since when was SHA-1 slower than ciphering?
>
> type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
> sha1 4121.41k 12750.30k 30907.53k 47681.66k 56379.43k
> rc4 79799.42k 87071.85k 94870.19k 95988.28k 96742.29k
If these are numbers for Pentium 4 CPU, then it should be noted that
OpenSSL SHA-1 assembler implementation was performing suboptimally on
P4. This was fixed in 0.9.7d. I for example get:
sha1 9489.58k 32274.82k 91089.08k 165553.74k 215638.02k
rc4 77315.06k 86091.19k 87813.80k 89298.28k 88544.83k
A.
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