OpenCL changes the dev environment a bit. However, atom of oclhashcat claims the nVidia OpenCL runtime is massively buggy.
What type of work are you doing? For crypto, ATI is often faster because it has a hardware barrel rotator. For other stuff, it just depends.
Search found 110 matches
- Sun Nov 07, 2010 12:40 am
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: ATI or Nvidia???
- Replies: 5
- Views: 18015
- Thu Aug 19, 2010 5:38 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Saving the keys/hashes?
- Replies: 8
- Views: 9241
Re: Saving the keys/hashes?
1. You don't understand rainbow tables if you think they're pass:hash pairs.
2. Have you looked at the size requirements for your proposed system with any reasonable password coverage? There's a reason it's not done.
2. Have you looked at the size requirements for your proposed system with any reasonable password coverage? There's a reason it's not done.
- Tue Aug 10, 2010 7:17 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: RainbowCrack 1.41 for GPU software
- Replies: 8
- Views: 9207
Re: RainbowCrack 1.41 for GPU software
Is installing a 64-bit Linux that much trouble? The modern Ubuntu installers have support for shrinking a Windows partition and installing alongside. The Cryptohaze GRTs may eventually be supported under Windows, but my search currently relies on mmap, which is not supported on Windows (at least not...
- Tue Aug 10, 2010 7:16 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: How to bruteforce md5($salt.$data)?
- Replies: 5
- Views: 7353
Re: How to bruteforce md5($salt.$data)?
You may have luck with the Cryptohaze multiforcer - you can use the per-position character set support to emulate this type of behavior, at least for short salts/passwords. In this case, you'd set the following per-position character sets: 0: t 1: e 2: s 3: t 4: [full US charset/etc] 5: [full US cha...
- Tue Aug 10, 2010 7:14 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Rtgen with dic CUDA/Brook
- Replies: 4
- Views: 6461
Re: Rtgen with dic CUDA/Brook
Are you discussing the dictionary mutation tables, or something different?
- Mon Jul 19, 2010 2:53 am
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Cryptohaze GRTs are out!
- Replies: 1
- Views: 3586
Re: Cryptohaze GRTs are out!
0.55 is out with NTLM/MD4 support as well as MD5. Over at cryptohaze!
- Mon Jul 12, 2010 1:29 am
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Cryptohaze GRTs are out!
- Replies: 1
- Views: 3586
Cryptohaze GRTs are out!
http://cryptohaze.com/gpurainbowcracker.php
This is, to my knowledge, the first ground-up rainbow tables implementation using CUDA.
The tables are NOT compatible with the existing rcrack tables - I use a different (much faster) reduction function.
Have fun!
This is, to my knowledge, the first ground-up rainbow tables implementation using CUDA.
The tables are NOT compatible with the existing rcrack tables - I use a different (much faster) reduction function.
Have fun!
- Mon May 03, 2010 7:53 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: oclHashcat
- Replies: 11
- Views: 30720
Re: oclHashcat
Impressive, though I question the CUDA-Multiforcer compare - if you're using 0.7, I think the autotuner is broken (so non-optimal block/thread sizes are being used), and you should probably be using the '-l' switch for 500k MD5 hashes, as it improves speed on large hashlists dramatically. I may test...
- Fri Feb 19, 2010 11:03 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: BarsWF feature suggestion
- Replies: 7
- Views: 8992
Re: BarsWF feature suggestion
I'd add that the Cryptohaze multiforcer 0.7 has this feature.
- Mon Sep 14, 2009 3:45 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Digital Signatures
- Replies: 11
- Views: 10360
Re: Digital Signatures
^++ You can't directly compare the strength of symmetric encryption algorithms (DES, AES) with public key algorithms (RSA) - the bit count does NOT in any way correlate between the two. AES256 (256 bit key) is theoretically secure well, well beyond feasible futures if the key is kept secure. RSA512 ...
- Thu Aug 27, 2009 9:29 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: RPISEC Distributed Hash cracker
- Replies: 2
- Views: 4037
Re: RPISEC Distributed Hash cracker
Does this attack a single hash, or full hash lists?
- Sun Aug 09, 2009 7:55 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: How to crack Cisco IOS enable secret
- Replies: 11
- Views: 14839
Re: How to crack Cisco IOS enable secret
It's far more complex than that. It's some initial operations, then 1000 iterations of a fairly annoying algorithm that does some string concatenation (GPUs are awful at this) depending on which operation you're on (using modulus, which GPUs are really bad at too). Then it does some final operations...
- Sat Aug 08, 2009 9:56 am
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: How to crack Cisco IOS enable secret
- Replies: 11
- Views: 14839
Re: How to crack Cisco IOS enable secret
Cisco IOS MD5 is just MD5CRYPT with a short hash value, IIRC.
No GPU brute forcers that I'm aware of support this yet.
The algorithm really kind of sucks for GPUs.
No GPU brute forcers that I'm aware of support this yet.
The algorithm really kind of sucks for GPUs.
- Wed Jun 17, 2009 8:59 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Algorithm optimizations (reversing steps)
- Replies: 19
- Views: 22826
Re: Algorithm optimizations (reversing steps)
in regards to a crossover point - how could reversal NOT be beneficial? Even if you re-reverse all hashes quite frequently, wouldn't it still be faster than computing the entire hash algorithm for every plaintext? Re-calculation of the last round of MD4 every 26^2 tries should still be less expensi...
- Thu Jun 11, 2009 12:54 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: BarsWF only sees one GPU...
- Replies: 4
- Views: 5780
Re: BarsWF only sees one GPU...
I believe this is a known issue with Vista - it only makes GPUs with displays attached available to CUDA.
Another solution would be to install Linux or XP for cracking - they will both outperform Vista significantly due to dramatically reduced kernel launch times.
Another solution would be to install Linux or XP for cracking - they will both outperform Vista significantly due to dramatically reduced kernel launch times.
- Mon Jun 01, 2009 3:39 pm
- Forum: General Talk
- Topic: How are current USA events viewed by those in Russia?
- Replies: 3
- Views: 5477
How are current USA events viewed by those in Russia?
I am curious as to how the current events in the USA (massive bailouts, nationalization of the auto industry, "spend now, tax the rich later," etc) are viewed by those who have lived through such things in Russia over the past 40 years or so. It seems to be a very similar road that Russia tried and ...
- Fri May 29, 2009 2:16 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: issue with asus HD4890 GFX (possible bug)
- Replies: 3
- Views: 5091
Re: issue with asus HD4890 GFX (possible bug)
There's no way a single 4890 should be beating a 4870x2 by a factor of 2.5 - it should be around 60% the performance or so, or around 1200M/s
- Fri May 29, 2009 12:52 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: issue with asus HD4890 GFX (possible bug)
- Replies: 3
- Views: 5091
Re: issue with asus HD4890 GFX (possible bug)
What driver revision do you have installed?
- Wed May 27, 2009 2:47 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: PassRape - CUDA/ATI SHA-1/mysql/MSSQL bruter
- Replies: 11
- Views: 12987
Re: PassRape - CUDA/ATI SHA-1/mysql/MSSQL bruter
I believe he has fixed the XP issue and will be releasing a revision shortly.budden wrote:I can't run it on my XP x86 CUDA2.2 station with 8800GTS 512mb - could you please check and report if it works?
In that case please specify your CUDA version, drivers, OS and GPU. On Vista it works fine AFAIK.
- Sat May 23, 2009 12:22 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Which Card
- Replies: 2
- Views: 4035
- Fri May 15, 2009 10:39 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Request: NT Hash (actually MD4)
- Replies: 54
- Views: 57616
Re: Request: NT Hash (actually MD4)
I'd add that Cryptohaze as a very nice Windows/Linux NTLM brute forcer - check the forum for the 0.7 binaries, as it's a LOT faster than the 0.6 ones on the front page.
- Thu May 14, 2009 6:34 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Updated CUDA Multiforcer, with SHA1 & per-position charset
- Replies: 11
- Views: 12627
Re: Updated CUDA Multiforcer, with SHA1 & per-position charset
I noticed the branching switch statement in your md5 code. If you are interested, I have a method that places the 0x80 in the correct place without branching, at the cost of about 20 more ops. I am afraid I don't have the code on me, but I can get it to you soon if you are interested. I've tested i...
- Wed May 13, 2009 6:12 pm
- Forum: General Talk
- Topic: Your workplace show-off :-)
- Replies: 31
- Views: 62520
Re: Your workplace show-off :-)
Macs for desktops, the real servers doing the CUDA work are Linux servers in the other room. I'll try to get a pic of my research area & the i7 box too.
- Wed May 13, 2009 3:31 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: CUDA-Multiforcer source
- Replies: 2
- Views: 5208
CUDA-Multiforcer source
Since it's buried in the other post:
http://www.cryptohaze.com/releases/CUDA ... .7.tar.bz2
It should compile if you put it in the projects directory of the CUDA SDK on a 64-bit Linux box. Beyond that, you're on your own.
Discussion over at the cryptohaze forums as well.
http://www.cryptohaze.com/releases/CUDA ... .7.tar.bz2
It should compile if you put it in the projects directory of the CUDA SDK on a 64-bit Linux box. Beyond that, you're on your own.
Discussion over at the cryptohaze forums as well.
- Wed May 13, 2009 3:19 pm
- Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
- Topic: Updated CUDA Multiforcer, with SHA1 & per-position charset
- Replies: 11
- Views: 12627
Re: Updated CUDA Multiforcer, with SHA1 & per-position charset
Eh, comments welcome.
http://www.cryptohaze.com/releases/CUDA ... .7.tar.bz2
Comment here, or over on the cryptohaze forum.
http://www.cryptohaze.com/releases/CUDA ... .7.tar.bz2
Comment here, or over on the cryptohaze forum.