john-dev - Re: auditing our use of FMT

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Message-ID: <CABtNtWFVEBT7v74v9M4Vxwe-+5Re4=qd+pjMKBBbmvYm=yd_cw@mail.gmail.com>
Date: Sun, 16 Aug 2015 08:59:46 +0800
From: Kai Zhao <loverszhao@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: auditing our use of FMT_* flags

Hi Frank,

On Sat, Aug 15, 2015 at 10:47 PM, Frank Dittrich
<frank.dittrich@...lbox.org> wrote:
> On 08/15/2015 02:49 PM, Kai Zhao wrote:
>> Below is the test vectors of DOMINOSEC8_fmt_plug.c:
>>
>> static struct fmt_tests tests[] = {
>>         {"(HsjFebq0Kh9kH7aAZYc7kY30mC30mC3KmC30mCluagXrvWKj1)", "hashcat"},
>>         {"(HosOQowHtnaYQqFo/XlScup0mC30mC3KmC30mCeACAxpjQN2u)",
>> "pleaseletmein"},
>>         {NULL}
>> };
>>
>> If I want to change the "hashcat" -> "hashca\xF4" which changes the last
>> character. How can I test the "hashca\xF4" with some input files ?
>
> As long as the hash and the password don't contain a few illegal
> characters (for hash: tab and newline, for password: newline), you can
> always use ./john --list=format-tests
>
> $ for f in `./john --list=format-details --format=cpu|cut -f 1`; do
> ./john --list=format-tests --format=$f |cut -f 3 > hashes.$f; done
> Warning: SAP-B format should never be UTF-8.
> Use --target-encoding=iso-8859-1 or whatever is applicable.
> Test scrypt 1: plaintext contains line feed
> Test scrypt 1: ciphertext contains line feed or separator character '   '
> Warning: SAP-B format should never be UTF-8.
> Use --target-encoding=iso-8859-1 or whatever is applicable.
>
> $ for f in `./john --list=format-details --format=cpu|cut -f 1`; do
> ./john --list=format-tests --format=$f |cut -f 4- > passwords$f; done
> Warning: SAP-B format should never be UTF-8.
> Use --target-encoding=iso-8859-1 or whatever is applicable.
> Test scrypt 1: plaintext contains line feed
> Test scrypt 1: ciphertext contains line feed or separator character '   '
> Warning: SAP-B format should never be UTF-8.
> Use --target-encoding=iso-8859-1 or whatever is applicable.
>

Thanks for your advice. Great.


Thanks,

Kai

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