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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: 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 |
51,113 |
11-11-2012, 01:03 PM |
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Thread: Android Full Disk Encryption
Post: Android Full Disk Encryption
| I was recently contacted by a person who at that point prefers to remain undisclosed and who provided me sample android encrypted disk images with the passwords to them.
I was able to identify the sc... |
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gat3way |
User Contributions
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13 |
55,419 |
04-28-2013, 07:17 PM |
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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: 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: 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: 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: 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 |
49,310 |
07-11-2012, 12:29 AM |
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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 |
49,310 |
07-11-2012, 08:25 AM |
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Thread: BCrypt + GTX670 = 6 c/s?
Post: RE: BCrypt + GTX670 = 6 c/s?
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wflme Wrote: (01-16-2013, 06:49 PM)
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blandyuk Wrote: (01-16-2013, 05:31 PM)
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Look at the speeds for bcrypt on https://hashcat.net/oclhashcat-plus/ under "Performance". A Radeon 7970 gets 4020 c/s... |
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gat3way |
Very old oclHashcat-plus Support
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23 |
52,580 |
01-16-2013, 08:06 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?
| 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?
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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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... |
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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: AMD Radeon R9 290X
Post: RE: AMD Radeon R9 290X
| Is there some information on that GCN2 architecture? |
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gat3way |
Hardware
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30 |
61,917 |
09-27-2013, 09:54 AM |
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Thread: Agilebits 1Password support and Design Flaw?
Post: RE: Agilebits 1Password support and Design Flaw?
| atom, you are doing the AES decryption on GPU? I guess you are using the table-based approach (such as what OpenSSL does and not what the AES sample from AMD APP SDK does). Do you store the expanded k... |
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gat3way |
Very old oclHashcat-plus Support
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44 |
362,066 |
04-17-2013, 11:27 PM |
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Thread: Agilebits 1Password support and Design Flaw?
Post: RE: Agilebits 1Password support and Design Flaw?
| You mean having 4 tables rather than one plus rotates?
In the APP SDK sample, they do it precisely as it is described in the papers.
However, you can combine SubBytes,ShiftRows and MixColumns into a... |
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gat3way |
Very old oclHashcat-plus Support
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44 |
362,066 |
04-18-2013, 05:02 PM |
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Thread: Breaking Samsung Android Passwords/PIN
Post: RE: Breaking Samsung Android Passwords/PIN
| Hm, how do you practically extract that? I am trying to extract it from Samsung Galaxy S3. Of course /data/data and /data/system are not readable by the adb user and it would require to root the phone... |
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gat3way |
User Contributions
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47 |
208,555 |
04-04-2013, 12:22 PM |
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Thread: Breaking Samsung Android Passwords/PIN
Post: RE: Breaking Samsung Android Passwords/PIN
| That would work in case you have the phone unlocked (in the sense of PIN already entered and not related to bootloader). Still if it is locked, you shouldn't be able to upload anything via adb. I gues... |
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gat3way |
User Contributions
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47 |
208,555 |
04-04-2013, 01:03 PM |
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Thread: Breaking Samsung Android Passwords/PIN
Post: RE: Breaking Samsung Android Passwords/PIN
| The same works for Nexus 7, but there is a difference, the lockscreen.password_salt is not located in /data/data/com.android.providers.settings/databases/settings.db, but rather in /data/system/lockse... |
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gat3way |
User Contributions
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47 |
208,555 |
04-07-2013, 12:37 PM |
