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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?
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gat3way |
User Contributions
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9 |
25,958 |
12-15-2010, 12:21 AM |
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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... |
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gat3way |
User Contributions
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9 |
25,958 |
12-15-2010, 11:06 PM |
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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... |
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gat3way |
User Contributions
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9 |
25,958 |
12-17-2010, 10:02 AM |
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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... |
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gat3way |
Old oclHashcat Support
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16 |
40,989 |
01-31-2011, 11:25 PM |
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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... |
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gat3way |
Very old oclHashcat Support
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6 |
21,790 |
02-04-2011, 04:54 PM |
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Thread: oclHashcat-lite leaked !!!
Post: RE: oclHashcat-lite leaked !!!
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gat3way |
Very old oclHashcat-lite Announcements
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21 |
57,937 |
03-27-2011, 01:19 AM |
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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... |
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gat3way |
General Help
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10 |
33,707 |
04-08-2011, 11:50 AM |
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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. |
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gat3way |
Hardware
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8 |
18,669 |
08-20-2011, 07:10 PM |
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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... |
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gat3way |
General Help
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1 |
7,334 |
09-29-2011, 08:20 AM |
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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 ... |
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gat3way |
Feature Requests
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27 |
130,517 |
02-03-2012, 11:26 AM |
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Thread: Possibility of zip archive password cracking?
Post: RE: Possibility of zip archive password cracking?
|
chort Wrote: (02-04-2012, 04:04 AM)
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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.
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... |
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gat3way |
Feature Requests
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27 |
130,517 |
02-04-2012, 11:33 PM |
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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... |
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gat3way |
Feature Requests
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27 |
130,517 |
02-15-2012, 10:38 AM |
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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. |
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gat3way |
Feature Requests
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27 |
130,517 |
02-17-2012, 11:53 AM |
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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... |
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gat3way |
Hardware
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23 |
70,083 |
03-30-2012, 10:49 PM |
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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... |
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gat3way |
Feature Requests
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9 |
27,826 |
04-11-2012, 09:50 AM |
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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 :( |
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gat3way |
Feature Requests
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9 |
27,826 |
04-11-2012, 12:26 PM |
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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... |
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gat3way |
Feature Requests
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9 |
27,826 |
04-11-2012, 04:40 PM |
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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)
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I'm sure that somewhere it was already answered just I could not find it. Sorry for that.... |
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gat3way |
Very old oclHashcat-plus Support
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1 |
5,404 |
04-27-2012, 08:20 AM |
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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 ... |
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gat3way |
Very old oclHashcat-plus Support
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11 |
22,316 |
06-01-2012, 11:51 PM |
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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... |
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gat3way |
Feature Requests
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5 |
14,085 |
06-04-2012, 03:06 PM |
