Messages in this thread | | | Date | Thu, 5 Jul 2012 20:46:12 -0300 | From | Henrique de Moraes Holschuh <> | Subject | Re: [PATCH] crypto: twofish-avx - remove useless instruction |
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On Thu, 05 Jul 2012, Johannes Goetzfried wrote: > The register %rdx is written, but never read till the end of the encryption > routine. Therefore let's delete the useless instruction.
Is it useless, or is it there to harden against some side-channel attack?
-- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh
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