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Date: Wed, 19 Sep 2012 01:11:54 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: hmac-md5/sha1 in magnum-jumbo (was: 1.7.9-jumbo-7)

On 18 Sep, 2012, at 21:30 , jfoug <jfoug@....net> wrote:
> I have only seen this issue in mag-jumbo or bleeding, not in fixes.  (Win32
> builds).

After fixing the SHA_BUF_SIZ bug in the -fixes branch (which made about half of the 1500 fail) and merging that to magnum-jumbo, I now probably see the same as you in the latter branch:


form=hmac-sha1                    guesses: 1497 time: 0:00:00:00 : Expected count(s) (1500)  [!!!FAILED!!!]
.pot CHK:hmac-sha1                guesses: 1493 time: 0:00:00:00 : Expected count(s) (1500)  [!!!FAILED!!!]

form=hmacMD5                      guesses: 1498 time: 0:00:00:00 : Expected count(s) (1500)  [!!!FAILED!!!]
.pot CHK:hmacMD5                  guesses: 1493 time: 0:00:00:00 : Expected count(s) (1500)  [!!!FAILED!!!]


This happened when I introduced clear_keys() in the hmac SSE2 formats. We could just revert that but I'm very curious why that fails. It might be worth trying to nail it.

magnum


>> From: magnum [mailto:john.magnum@...hmail.com]
>> 
>> On 18 Sep, 2012, at 20:28 , magnum <john.magnum@...hmail.com> wrote:
>>> There is a regression problem in hmac-sha1 only found by Test Suite. I
>> will revert the clear_keys() patch (I thought it was to magnum-jumbo
>> only).
>> 
>> Very odd. I only get the problem on OSX, not on Linux (both are 64-bit).
>> The clear_keys() is not in -fixes, there are only very minor changes and
>> an added split() that unifies case. I have no idea what goes wrong!
> 
> 


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