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Date: Sat, 29 Sep 2012 20:10:07 -0300
From: Claudio André <claudioandre.br@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Any secret to use a salt_hash function?
Em 29-09-2012 20:02, magnum escreveu:
> That looks right. In what way does it seem to be ignored?
>
> magnum
For example: using JtR TS files.
../run/john SHA512crypt_tst.in -de:1 --wordlist=pw.dic
-fo:sha512crypt-opencl
Loaded 1500 password hashes with 1500 different salts (sha512crypt [OpenCL])
But there are 56 different salts there (more or less). And if I put a
printf (inside salt_hash) i see that variable hash has something good.
>
>
> On 30 Sep, 2012, at 1:00 , Claudio André <claudioandre.br@...il.com
> <mailto:claudioandre.br@...il.com>> wrote:
>
>> Hi, is there any secret to use a salt_hash function?
>>
>> The hash function returns something valid, but seems it is ignored.
>> Any flag to adjust?
>>
>> Thanks.
>>
>> Some code below:
>> -------------
>>
>> static int salt_hash(void *salt) {
>> unsigned char *s = salt;
>> unsigned int hash = 5381;
>> unsigned int i;
>>
>> for (i = 0; i < sizeof(sha512_salt); i++)
>> hash = ((hash << 5) + hash) ^ s[i];
>>
>> return hash & (SALT_HASH_SIZE - 1);
>> }
>>
>> AND
>>
>> struct fmt_main fmt_opencl_cryptsha512 = {
>> ...
>> binary_hash_6
>> },
>> salt_hash,
>> set_salt,
>> set_key,
>>
>
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