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by reg
Tue Nov 03, 2009 11:43 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Bit slicing (des)
Replies: 0
Views: 4877

Bit slicing (des)

Hi all,

I was reading about bit slicing (http://en.wikipedia.org/wiki/Bit_slicing), it has been used for speedup des algo. Maybe can be usefull for LM and DES(unix) implementation.

Any news about the DES(unix) algo? ;)

cheers.

reg
by reg
Tue Nov 04, 2008 10:29 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Request: UNIX crypt (DES based)
Replies: 6
Views: 8487

Re: Request: UNIX crypt (DES based)

:joy: :joy:

I just saw that "Extreme GPU Bruteforcer" as implemented unix des too, but seem slow... are you getting the same problem or it's just him code?

Thank you a lot for your work
by reg
Thu Oct 23, 2008 7:51 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Request: UNIX crypt (DES based)
Replies: 6
Views: 8487

Re: Request: UNIX crypt (DES based)

Tested too the client (8800 GTX), it sucks... 2.5M p/s very slow... (on a single core cpu you can reach 1M p/s without problem).

I hope will be implemented on BarsWF ;)
by reg
Mon Oct 20, 2008 8:51 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Request: UNIX crypt (DES based)
Replies: 6
Views: 8487

Request: UNIX crypt (DES based)

UNIX crypt (DES) 1) Algorithm description, with pseudocode Traditional DES-based scheme The traditional implementation uses a modified form of the DES algorithm. The user's password is truncated to eight characters, and those are coerced down to only 7-bits each; this forms the 56-bit DES key. That ...