Topic: Intel Arrandale Chips & BCVE AES Encryption Speed (Read 825 times)

Jetico · « **Reply #2 on:** January 05, 2010, 10:55:46 AM »

Thank you!

"AESNI" is not a modification of AES encryption algorithm or some
specific mode used with AES algorithm. It is a set of 6 new instructions
for Intel Westmere-32nm processor architecture ("AESNI" means
"Advanced Encryption Standard New Instructions").

At the moment we have not tested real performance of software that
use hardware acceleration with AESNI instructions. According to
estimations made by Intel, performance of such a software with
AESNI hardware acceleration may increase up to 1.5 - 2 times.

Please note also that overall performance of encryption software
depends also on performance of disk subsystem. Besides, the question
of encryption algorithm modes still exists, because CBC, LRW, XTS
(or other) work with significantly different speeds.

From the other hand, encryption software may utilize several algorithms.
For example, BestCrypt Volume Encryption uses also RC6, which as minimum
1.5 times faster than AES. So although it is nice that AES hardware
acceleration is coming, we should think carefully before saying that
revolutionary step forward will happen soon in performance of software
encryption products.

News:

Message #89567

AuthorTopic: Intel Arrandale Chips & BCVE AES Encryption Speed (Read 825 times)

Jetico

Re: Intel Arrandale Chips & BCVE AES Encryption Speed