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Date: Thu, 6 Dec 2012 22:08:05 +0530
From: Sayantan Datta <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: bitslice DES on GPU
I did the following:
Set up two hard coded kernels with same salt. Bit reversed a constant at
only one position in one of the kernel. Using this loop,
//kernel 1
for(i=0; i< binary_size;i++){
iptr = binary + i;
if(*iptr== 0xf0000000) printf("Found:%d\n",i);
}
//kernel 2
for(i=0; i< binary_size;i++){
iptr = binary + i ;
if(*iptr== 0x0000000f ) printf("Found:%d\n",i);
}
where 'iptr' is int pointer , 'binary' is char pointer and 'binary_size' is
size in bytes.
Now comparing the two sets of found locations, I should be able to pinpoint
at least one common location. However it seems that there are no common
location between them!!
Is this approach OK?
Regards,
Sayantan
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