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Post Author Forum Replies Views Posted [desc]
    Thread: [split] BFI_INT from OpenCL
Post: [split] BFI_INT from OpenCL

Doesn't the clc compiler generate BFI_INT code when bitselect() is used?
gat3way User Contributions 9 25,958 12-15-2010, 12:21 AM
    Thread: [split] BFI_INT from OpenCL
Post: RE: AMD Stream 2.3 SDK released

It seems that bitselect() does not offer any benefit over using (a&b)|(~a&c). None at all. Not that I hoped that the compiler will somehow generate magically better IL code using some magic instructio...
gat3way User Contributions 9 25,958 12-15-2010, 11:06 PM
    Thread: [split] BFI_INT from OpenCL
Post: RE: [split] BFI_INT from OpenCL

Tested yesterday, both are the same as 1) on GPU and on CPU. I find it a bit strange that 1), 4) and 5) are slower than 3) though. You have one bitwise operation less, however it should be worse as t...
gat3way User Contributions 9 25,958 12-17-2010, 10:02 AM
    Thread: Share your oclHashcat+ speeds
Post: RE: Share your oclHashcat+ speeds

ATI 6870 ./oclHashcat+64.bin '$1$ttZyaHgu$2VuH9BXN6KKJLp99ofMLy.' -m 500 -n 40 -r rules/perfect.rule rockyou.txt oclHashcat+ v0.03 starting... Hashes: 1 Bitmaps: 8 bits, 256 entries, 0x000000...
gat3way Old oclHashcat Support 16 40,989 01-31-2011, 11:25 PM
    Thread: Help for crack SHA1 salt:password
Post: RE: Help for crack SHA1 salt:password

The IMEI you've provided is actually in hex. Same goes for the actual sl3 code you are trying to crack. Same goes for the zero CRC at the end which is actually a zero byte, 0x00, not 0x30. Also, m...
gat3way Very old oclHashcat Support 6 21,788 02-04-2011, 04:54 PM
    Thread: oclHashcat-lite leaked !!!
Post: RE: oclHashcat-lite leaked !!!

Stupid asses.
gat3way Very old oclHashcat-lite Announcements 21 57,937 03-27-2011, 01:19 AM
    Thread: AMD APP SDK v2.4 released
Post: RE: AMD APP SDK v2.4 released

This SDK release sucks. 1) Removed the clc tool which was very useful and now I have to write my own ocl compiler to check build errors. 2) Unlike what they claim, kernel launch latency is roughly th...
gat3way General Help 10 33,707 04-08-2011, 11:50 AM
    Thread: New Graphic Card, whichh should I buy?
Post: RE: New Graphic Card, whichh should I buy?

6990 is faster than 5970 at both ALU-bound and memory-bound tasks. However, it needs more power and the heat dissipation problem is worse with that GPU.
gat3way Hardware 8 18,669 08-20-2011, 07:10 PM
    Thread: AMD Catalyst 11.9
Post: RE: AMD Catalyst 11.9

It's worse than that. Try to recompile your kernels for sdk2.5/cat11.9. You will see half of them stop working correctly (while they likely used to run correctly even on sdk2.5/11.8).. That Catalyst r...
gat3way General Help 1 7,334 09-29-2011, 08:20 AM
    Thread: Possibility of zip archive password cracking?
Post: RE: Possibility of zip archive password cracking?

Tarcel, you have 4 or more files in your archive and it was generated with WinZIP version prior to 8? In that case, the entropy of the IVs is much lower due to a bug in winzip implementation and such ...
gat3way Feature Requests 27 130,517 02-03-2012, 11:26 AM
    Thread: Possibility of zip archive password cracking?
Post: RE: Possibility of zip archive password cracking?

chort Wrote: (02-04-2012, 04:04 AM) -- Wow, that sounds depressing for RAR cracking. Perhaps there is a design weakness that could lead to a shortcut? I wish I knew something about cryptanalysis. -- ...
gat3way Feature Requests 27 130,517 02-04-2012, 11:33 PM
    Thread: Possibility of zip archive password cracking?
Post: RE: Possibility of zip archive password cracking?

An update on RAR: I just finished the ATI RAR kernels yesterday. This is the most difficult algo I've done on GPU until now. It is not hard to code the RAR algo with OpencL, but having a good performi...
gat3way Feature Requests 27 130,517 02-15-2012, 10:38 AM
    Thread: Possibility of zip archive password cracking?
Post: RE: Possibility of zip archive password cracking?

In several months. I need to add 7z and dmg support as well to cover most used archive formats. BTW rar speed is not something I'm proud of yet, igrargpu is still about 10% faster.
gat3way Feature Requests 27 130,517 02-17-2012, 11:53 AM
    Thread: oclHashcat-lite gtx680 benchmarks
Post: RE: oclHashcat-lite gtx680 benchmarks

atom, did you try vectorized kernels like those for sm_21? From what I understood, 680GTX may turn out (from OpenCL perspective) something very much resembling a VLIW card, just in another way. I mean...
gat3way Hardware 23 70,083 03-30-2012, 10:49 PM
    Thread: Truecrypt
Post: RE: Truecrypt

I don't think specifying the encryption scheme makes any sense except in some rare cases where you really know what was used. Trying all the encryption schemes is quite feasible as that happens much f...
gat3way Feature Requests 9 27,826 04-11-2012, 09:50 AM
    Thread: Truecrypt
Post: RE: Truecrypt

IvanG, I failed to take that into consideration :( I also just realized TC uses XTS mode....which is bad, keys twice longer, thus effective pbkdf2 iterations likely more than I expected :(
gat3way Feature Requests 9 27,826 04-11-2012, 12:26 PM
    Thread: Truecrypt
Post: RE: Truecrypt

Whirlpool is a completely different construct as compared to most hash types we're well familiar with (like MD4, MD5, SHA1/SHA2). It is not a Merkle-Damgard construction, instead it is based on a bloc...
gat3way Feature Requests 9 27,826 04-11-2012, 04:40 PM
    Thread: Question regarding RSA DSA algos
Post: RE: Question regarding RSA DSA algos

It's not DSA or RSA. Plain symmetric cryptography is used, 3DES. KT819GM Wrote: (04-27-2012, 07:19 AM) -- I'm sure that somewhere it was already answered just I could not find it. Sorry for that....
gat3way Very old oclHashcat-plus Support 1 5,404 04-27-2012, 08:20 AM
    Thread: Regular Expression Interpreter
Post: RE: Regular Expression Interpreter

I believe implementing a regexp parser is possible on GPUs. Implementing some finite state automata to parse regular expressions is not something I believe would be very GPU-friendly though - because ...
gat3way Very old oclHashcat-plus Support 11 22,316 06-01-2012, 11:51 PM
    Thread: AES/Rijndael expert needed
Post: RE: AES/Rijndael expert needed

Much better idea would be to use a key derivation function like PBKDF2 with ïnitial symmetric key as salt with some good iterations count. Applying the password directly is a bad idea, you are weak...
gat3way Feature Requests 5 14,085 06-04-2012, 03:06 PM