simon-git: putty (master): Simon Tatham

[Commits to Tartarus hosted VCS]

TL;DR:
  d6338c2 Fix mishandling of IV in AES-NI CBC decryption.

Repository:     https://git.tartarus.org/simon/putty.git
On the web:     https://git.tartarus.org/?p=simon/putty.git
Branch updated: master
Committer:      Simon Tatham <anakin at pobox.com>
Date:           2018-03-27 23:11:05

commit d6338c22c32b9f55b71ace80f993bbb8f8c1aa6d
web diff https://git.tartarus.org/?p=simon/putty.git;a=commitdiff;h=d6338c22c32b9f55b71ace80f993bbb8f8c1aa6d;hp=c67389e1fbe64e778634c6332449dce3fd302671
Author: Simon Tatham <anakin at pobox.com>
Date:   Tue Mar 27 23:05:07 2018 +0100

    Fix mishandling of IV in AES-NI CBC decryption.
    
    A user reported that the new hardware AES implementation wasn't
    working, and sent an event log suggesting that it was being run in CBC
    mode - which is unusual enough these days that that may well have been
    its first test.
    
    I wasn't looking forward to debugging the actual AES intrinsics code,
    but fortunately, I didn't have to, because an eyeball review spotted a
    nice simple error in the CBC decrypt function in which the wrong local
    variable was being stored into the IV variable on exit from the
    function. Testing against a local CBC-only server reproduced the
    reported failure and suggested that this fixed it.

 sshaes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)