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Date: Sun, 1 Apr 2012 09:37:32 +0400
From: Solar Designer <>
Subject: Re: JtR: GPU for slow hashes

On Sun, Apr 01, 2012 at 08:31:07AM +0530, SAYANTAN DATTA wrote:
> I have few question here regarding JtR format.
> 1.As the PBKDF2 step uses a 16 byte hexadecimal string as password ,what
> should be the properties flag for this type of pass?Here's an example of my
> test structure.
> static struct fmt_tests tests[] = {
>      {"c9ffa11fa850ca3e69bf2e9332528fd8","3ac02a65d6d4c6893f001ce1b4f8543b"
> ,{"123456789123"}},
>           {NULL}
>           };
> The third field is the username in plaintext.Which will be internally
> converted to salt.

Please take tests[] from mscash2_fmt_plug.c or/and cuda_mscash2_fmt.c.
Your implementation got to work right with the same test vectors.

> 2.How do you perform the benches?Do you use the crypt_all() method for
> benching?

Primarily, yes.  The benchmarks invoked with --test make use of
clear_keys(), set_key(), set_salt(), crypt_all(), and cmp_all().
You may see this in bench.c.


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