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Thread: SHA256 bug when salt is really big?
Post: SHA256 bug when salt is really big?
| *** I HOPE I AM NOT BREAKING THE 'NO-POSTING HASHES RULE' BY THIS THREAD SINCE BOTH HASHES ARE HOME-MADE **
So, I declare beforehand that I might be stupid but I do believe that there is a bug ... |
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john2014 |
Old oclHashcat Support
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9 |
16,272 |
02-13-2014, 08:27 PM |
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Thread: SHA256 bug when salt is really big?
Post: RE: SHA256 bug when salt is really big?
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epixoip Wrote: (02-13-2014, 08:35 PM)
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oclHaschat only implements a single block of sha256, therefore total input (salt + plain) cannot exceed the size of one block.
--
What is the size of one ... |
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john2014 |
Old oclHashcat Support
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9 |
16,272 |
02-13-2014, 08:37 PM |
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Thread: SHA256 bug when salt is really big?
Post: RE: SHA256 bug when salt is really big?
| Correct me please if I am wrong:
Password: 1234567 = 7 characters
Salt: [@36 Dirty, Ugly and Filthy old men!#] = 38 characters
So, 7+38= 45 < 55
Isn't (salt+plain) less than 55? |
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john2014 |
Old oclHashcat Support
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9 |
16,272 |
02-13-2014, 09:04 PM |
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Thread: How can we have a comma? (",")
Post: How can we have a comma? (",")
| I am experiencing a problem regarding the comma character (",") when I am trying to define it as part of the password. Please look at the examples:
Static word (space between 2 words): Pretty S... |
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john2014 |
Old oclHashcat Support
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2 |
5,526 |
02-13-2014, 09:13 PM |
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Thread: SHA256 bug when salt is really big?
Post: RE: SHA256 bug when salt is really big?
| I apologize if my initial posting was not clear enough:
when trying to find the password just for 1 hash (with the long salt) it works fine!
So, in your example you have in your hash file "examp... |
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john2014 |
Old oclHashcat Support
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9 |
16,272 |
02-13-2014, 09:19 PM |
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Thread: SHA256 bug when salt is really big?
Post: RE: SHA256 bug when salt is really big?
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epixoip Wrote: (02-13-2014, 09:59 PM)
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Ah ok, yeah, that's more clear. So yes, you should file a bug report about this on Trac. Might also want to include the bug in my example as well, where it cr... |
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john2014 |
Old oclHashcat Support
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9 |
16,272 |
02-13-2014, 10:15 PM |
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Thread: How can we have a comma? (",")
Post: RE: How can we have a comma? (",")
| Cudos for such fast reply.
Please also check the more serious bug I have reported in my other thread named "SHA256 bug when salt is really big?"
I have also opened a ticket as it is very serious... |
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john2014 |
Old oclHashcat Support
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2 |
5,526 |
02-14-2014, 01:08 AM |
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Thread: Any way to apply certain rules/criteria on created passwords?
Post: Any way to apply certain rules/criteria on created...
| (This is both posted in hashcat and oclHashcat as its a common question)
When performing a dictionary attack (any kind) with a set of rules, is there a way to discard the created password (from t... |
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john2014 |
Old oclHashcat Support
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1 |
4,216 |
02-14-2014, 08:07 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: Please help: 2 of the 4 290X are way too slow when...
| I will make it as short as possible although there are many background details:
I have 4 R9 290X in total.
2 x "Asus Direct CU2 R9 290X OC" are directly connected on a MSI Z87 MB and 2 x "Sapphir... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-22-2014, 03:03 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| Please excuse my ignorance but isn't oclhashcat supposed to split the work to the 4 GPUs?
The dictionary attacks I have tried so far always include rules so my guess is that that's enough of intensiv... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-22-2014, 03:20 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| ok, understood.
I will provide all the info you need as soon as the current work is done. |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-22-2014, 05:00 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| I have read all the answers so far.
I am glad this has triggered a lot of talk as I have been desperate to find a solution to the problem.
I will keep my answers short:
1) none of the card is fak... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-24-2014, 08:42 AM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| epixoip:
Crossfire is ALWAYS disabled and "Performance/Overdrive" displays only GPU #1
When enabling crossfire it shows in the "Overdrive" -> "Select the GPU to be configured" dropdown (after an... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-24-2014, 11:17 AM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| Latest update AND IT IS NOT GOOD:
1) I swapped the 2 Asus which were on the MB with the 2 Sapphire which were connected to the USB risers. Result: The Saphire GPUs were working on the 1/3 of the As... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-25-2014, 12:17 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| blazer:
1)if you are referring to the "normal/uber" switch, no, I haven't touched it during the troubleshooting. It has been left at "uber" since day #1
2) have to recheck the BIOS version. A couple... |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-25-2014, 04:35 PM |
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Thread: Please help: 2 of the 4 290X are way too slow when performing dictionary attack
Post: RE: Please help: 2 of the 4 290X are way too slow ...
| SomeGuy:
Yes, I have this in mind. Once I receive the HDMI dummy plugs it is one of the things I will try. |
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john2014 |
Old oclHashcat Support
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27 |
42,073 |
07-25-2014, 08:26 PM |
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Thread: Pls help - simple rule does not work!
Post: Pls help - simple rule does not work!
| hashcat version: 4.2.1
==============
1st I try this:
hashcat64.exe -m 2500 -a 0 crackme.hccapx "C:\WORDLISTS\simple.txt"
(where "simple.txt" contains only the word "password123")
Resu... |
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john2014 |
hashcat
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10 |
5,453 |
09-18-2018, 12:44 PM |
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Thread: Pls help - simple rule does not work!
Post: RE: Pls help - simple rule does not work!
| I edited my post to reflect your points (yes, you are right regarding the "--stdout" switch) |
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john2014 |
hashcat
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10 |
5,453 |
09-18-2018, 03:10 PM |
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Thread: Pls help - simple rule does not work!
Post: RE: Pls help - simple rule does not work!
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undeath Wrote: (09-18-2018, 05:06 PM)
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what happens when you run
Code:
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hashcat64.exe -m 2500 -a3 crackme.hccapx password123
--
?
Try the example hccapx file: https://hashcat.net/wiki/doku.php?... |
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john2014 |
hashcat
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10 |
5,453 |
09-18-2018, 06:12 PM |
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Thread: Pls help - simple rule does not work!
Post: RE: Pls help - simple rule does not work!
| Ok, I just checked and indeed the password is "hashcat!"
(with wordlist "000.txt" containing "hashcat!" and no rule applied)
hashcat64.exe -m 2500 -a 0 hashcat.hccapx "C:\_WORDLISTS\000.txt"
And t... |
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john2014 |
hashcat
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10 |
5,453 |
09-18-2018, 09:06 PM |
