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Search Results
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Thread: 4-Way Handshake confusion
Post: RE: 4-Way Handshake confusion
| In fact, those are not rainbow tables. Those are just precomputed tables of essid/password pairs. There is no reduction function and the check against those tables is pretty straightforward, it involv... |
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gat3way |
General Talk
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11 |
51,112 |
11-11-2012, 01:03 PM |
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Thread: Drupal 7 hashes
Post: RE: Drupal 7 hashes
| Generic sha512 won't work. |
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gat3way |
General Help
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4 |
13,293 |
07-13-2012, 11:04 PM |
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Thread: need help with sha512
Post: RE: need help with sha512
| Overall, it is more than 5000 sha512 operations because of the initialization part which is more complex as compared to md5crypt. There can be 30-40 additional sha512 hash operations depending on salt... |
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gat3way |
Very old oclHashcat-lite Support
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23 |
49,309 |
07-11-2012, 08:25 AM |
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Thread: need help with sha512
Post: RE: need help with sha512
| In fact, sha512unix is not very much faster on GPU as compared to CPU. If bruteforcing 5-char passwords is not practical on CPUs (your charset is too large?), then it's very likely it won't be practic... |
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gat3way |
Very old oclHashcat-lite Support
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23 |
49,309 |
07-11-2012, 12:29 AM |
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Thread: ERROR: clCreateBuffer() -61 on -plus-0.09
Post: RE: ERROR: clCreateBuffer() -61 on -plus-0.09
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gat3way |
Beta Tester
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6 |
6,485 |
07-03-2012, 01:28 PM |
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Thread: How many GTX690 can be supported?
Post: RE: How many GTX690 can be supported?
| Kepler is anti-GPGPU architecture. Better go with 590s... |
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gat3way |
Hardware
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17 |
29,985 |
06-22-2012, 09:19 AM |
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Thread: Need spec assistance on a build
Post: RE: Need spec assistance on a build
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forumhero Wrote: (06-13-2012, 02:13 AM)
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also the limit of AMD driver is 8GPU per machine, so your goal of 60,000 M/s won't happen unless the soon to release HD 7990 can get 15,000 M/s per card.
--... |
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gat3way |
Hardware
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7 |
13,416 |
06-13-2012, 08:49 AM |
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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 |
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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: 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: 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: 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
| 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: 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: 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: 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?
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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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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?
| 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: 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: 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 |
