[dm-crypt] XTS performance
yaronf at gmx.com
Tue May 1 08:26:39 CEST 2012
Looking back at the archives, it appears that aes-xts-plain in dm-crypt
runs at half the speed of aes-cbc-essiv:
explained it at the time by XTS doing 2 AES operations for each
plaintext block. But my understanding of XTS is that it is similar to
ESSIV: 1 AES op per 16-byte block, plus 1 op for the sector.
- Did I misread the definition of XTS, and it's really 2 AES ops per
- Does anybody have more recent performance comparisons, confirming (or
not) the performance difference?
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