Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Wed, 06 May 2015 20:42:39 +0200
From: magnum <>
Subject: Re: bare tag test works only if the first test hash contains
 format tag

On 2015-05-06 18:41, Aleksey Cherepanov wrote:
> On Mon, May 04, 2015 at 11:04:35PM +0300, Aleksey Cherepanov wrote:
>> The code works for good bare hashes. But it will work wrong for
>> shorter hashes. It fails self tests because $SHA512$ without hex
>> part is tried:
>> FAILED (promiscuous valid ($SHA512$))
>> Interestingly format tag is not part of fmt_main, the tag is extracted
>> from self tests matching $ (so the test will not be applied if the tag
>> is not in $).
> I think the check of bare format tag is performed only if the first
> test hash has the tag. So current raw-sha512 does not get the check.

Correct. It was never meant for this. It was specifically created to 
catch some of Dhiru's systematic bugs in dozens of formats. The formats 
involved did not have bare hashes at all. Isn't it even called "the 
Dhiru test"? :-)  Or maybe that's another one...


Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.