Search found 89 matches

by IvanG
Tue Sep 22, 2009 7:57 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Simple Questions
Replies: 8
Views: 6945

Re: Simple Questions

Above 14 in length will be truncated to match 14 characters. An LM hash consists then of two parts, one for each 7 character piece. Actually for passwords longer than 14 symbols LM hash isn't used and so it's not attackable (== attack failed), there no truncations. AFAIK. And wiki also stands for i...
by IvanG
Tue Sep 22, 2009 6:16 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: CUDA supported bruteforcers
Replies: 35
Views: 24123

Re: CUDA supported bruteforcers

5. MySQL as it's totally different algorithm from MD4/5/SHA1 (and it's possible to get really big numbers for it :)). There are two MySQL algorithms MySQL3.23 (62 bit hash) and MySQL SHA1 which is "*"+sha1(sha1(pass)). Yeah, I mean "old" MySQL, 62-bit one, as MySQL5 is just 2 times slower than SHA1...
by IvanG
Tue Sep 22, 2009 2:55 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Simple Questions
Replies: 8
Views: 6945

Re: Simple Questions

I think it's because LM (DES) much harder to implement than MD4/5. And when LM attack failed it usually means that password > 14 symbols, so totally pointless to perform bruteforce on NTLM (=Unicode MD4). I guess many people actually interested in LM GPU cracker even with hundreds of rainbow tables ...
by IvanG
Tue Sep 22, 2009 2:50 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: CUDA supported bruteforcers
Replies: 35
Views: 24123

Re: CUDA supported bruteforcers

IvanG, I added yours to the list as well as cRARk. Also good point with the speed test. But the hard thing about testing different ones is that they all don't support the same things. Also some support list and some only support a single hash. I'll see if I can't do some kind of benchmark test toni...
by IvanG
Tue Sep 22, 2009 2:37 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

and somehow figured out how to reduce the cpu usage. For cuda it was simply one constant change when creating GPU context. For ATI (as always!) it takes a lot of programming and it's still possible that reduced CPU usage will results in reduced GPU performance... Bug: colors. When ctr+c to stop the...
by IvanG
Sat Sep 19, 2009 2:35 pm
Forum: BarsWF, криптография, безопасность, GPGPU и суперкомпьютеры
Topic: Sony PS3 и что то там от мелкомягких
Replies: 15
Views: 25382

Re: Sony PS3 и что то там от мелкомягких

HD4850(x2)/4770 всё равно остаются самыми выгодным по цена/производительность/ватты и прочее даже прилепив к ним системный блок. Ссылка на быстрый брутер для PS3 была в английской секции( http://3.14.by/forum/viewtopic.php?f=8&t=573 ), производительность и прожорливость сравнивалась тут: http://pers...
by IvanG
Sat Sep 19, 2009 1:21 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: HD 5870
Replies: 20
Views: 13189

Re: HD 5870

BarsMonster wrote:Get ready for 2500 MHash/sec on a single core :crazy: :crazy: :crazy:
I'm expecting even a bit more ;)

http://www.golubev.com/about_cpu_and_gpu_2_en.htm
by IvanG
Fri Sep 18, 2009 7:27 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

Well, it's still weird that 4850 freezes. It processing one 2^23 block in ~8ms, so there must be enough time to update screen for GPU. I don't have such problem with my 4770 & 4850 though I'm using Intel Q6600@3Ghz & Vista64.
by IvanG
Fri Sep 18, 2009 10:52 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

my friend (who is to laaazy to register here) has a radeon 4850 with latest drivers and an amd phenom quad core. the problem is that when he starts your program his whole computer freezes and, according to task manager, utilizes 25% cpu (i bet one core) however his whole computer totally freezes li...
by IvanG
Thu Sep 17, 2009 4:25 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

How about the wordlist thingy do you think its possible? The main problem is password generation here. It'll be needed to preprocess list on CPU, transfer it to GPU and check there, with 1000M/s password checking rate the bandwidth required will be Gbytes per second. And for dictionary with rules a...
by IvanG
Thu Sep 17, 2009 3:47 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

panda wrote:Which catalyst driver do you recommend? The latest?
Yeah. Though there isn't many visible changes since 9.6 in runtime dlls.
BarsMonster wrote:How about nanoSleep? On WinXP+ you can have 0.1ms sleeps (AFAIK)
I think nanosleep is just unix thing. Can't find anything applicable on win32.
by IvanG
Thu Sep 17, 2009 11:02 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

By the way, version for RV710 & RV730 available here: http://www.golubev.com/files/ighashgpu_v053a.zip . Suddenly I've figured out that 4550 & 4670 in fact supports "compute shader mode" needed. It's truly amazing the way ATI works -- if documentation says nothing about supported features and tool d...
by IvanG
Thu Sep 17, 2009 9:46 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

Got any clue why one virus scanner flags your file for containing a trojan? It's most likely a false positive as I can see here that you know how to code. I guess CPsecure guys doesn't know how to code, that's why :D. You can unpack .exe with upx and feed it to virus scanner, 99% it won't find anyt...
by IvanG
Thu Sep 17, 2009 9:37 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Beginner Probs
Replies: 10
Views: 8683

Re: Beginner Probs

Might be "easier" but it got flagged for containing a trojan. Troj.Proxy.W32.Horst.el http://virusscan.jotti.org/en/scanresult/ecac097e862d7d97f38982c8f880cfea69c7aafe Scan finished. 1 out of 21 scanners reported malware. Yeah, it's really scaring, some "CPsecure" (that's the hell is it?..) reporte...
by IvanG
Thu Sep 17, 2009 9:29 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

Hey IvanG! Ive been testing your program for a while now. How come your cracker utilizes 25% cpu of my quad core? Am I missing something that it needs cpu aswell? :) This time spent in one simple loop: CALevent e = 0; if (calCtxRunProgramGrid(&e, calCtx, &pg) != CAL_RESULT_OK) return 8; do { // Sle...
by IvanG
Thu Sep 17, 2009 6:24 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: CUDA supported bruteforcers
Replies: 35
Views: 24123

Re: CUDA supported bruteforcers

Probably it's better to compare speed of different crackers instead of "this one has GUI so it's the best".

I'd to say my hash cracker (which I already advertised several times here :)) becoming most universal (ATI+nVIDIA+different hashes) and fastest one :D.
by IvanG
Thu Sep 17, 2009 6:17 am
Forum: BarsWF, криптография, безопасность, GPGPU и суперкомпьютеры
Topic: Маленькая скорость, помогите
Replies: 5
Views: 12237

Re: Маленькая скорость, помогите

У 9200M GS всего 8 SP на частоте в 1.3ГГц, что означает максимум примерно в 24М хэшей в пиковой нагрузке. Помочь может только смена видеокарты, что, вероятно, несколько проблематично сделать.
by IvanG
Mon Sep 14, 2009 7:53 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: CUDA supported bruteforcers
Replies: 35
Views: 24123

Re: CUDA supported bruteforcers

I guess you're assume cracked EDPR otherwise it's as easy as $600 off :P.
by IvanG
Fri Sep 11, 2009 3:36 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: How high can you get
Replies: 260
Views: 179000

Re: How high can you get

Your absolutly right, I have another 680i motherboard with a core 2 duo. that has 3 pci-e slots i could use. I still haven't figured out the .save file yet so that I can make it somewhat distributed, and after comparing BarsWF to Elcomsofts I would really like to use BarsWF. I was only getting 2.33...
by IvanG
Sat Sep 05, 2009 8:41 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Beginner Probs
Replies: 10
Views: 8683

Re: Beginner Probs

Bonzo1993 wrote:hi
lol i tested this tool an it worked ^^
2800 MHasehs/s great :joy:
Yeah, it's great tool indeed :D.
by IvanG
Sat Sep 05, 2009 5:55 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Beginner Probs
Replies: 10
Views: 8683

Re: Beginner Probs

Only supported ATI cards are: HD RV740+. Which means -- 4830, 4850, 4870, 4890 and 4770.
:?
by IvanG
Sat Sep 05, 2009 3:53 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Beginner Probs
Replies: 10
Views: 8683

Re: Beginner Probs

There is alternative and easier solution -- simply use http://www.golubev.com/hashgpu.htm instead of BarsWF.
by IvanG
Tue Sep 01, 2009 7:55 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: One more GPU hash cracker
Replies: 60
Views: 41646

Re: One more GPU hash cracker

Of course it's works with RV740. Blame PR & marketing guys who likes to call same thing with 3 different names ;). The thing really required is "compute shader mode" (though I doubt many peoples understand what the hell it is). In fact it's possible to add support for all other ATI GPUs like 2XXX & ...
by IvanG
Tue Aug 18, 2009 5:36 pm
Forum: BarsWF, криптография, безопасность, GPGPU и суперкомпьютеры
Topic: Поддержка md5(md5($pass)) ???
Replies: 2
Views: 6202

Re: Поддержка md5(md5($pass)) ???

Это не обычный md5, поэтому барсом подобрать его нельзя. Другими ломалками можно. Так как там 2 итерации md5, то реверсинг хэша накрывается и время удваивается, то есть такие хэши будут подбираться в ~2.7 раза медленнее, чем обычные md5.
by IvanG
Fri Aug 14, 2009 2:46 pm
Forum: BarsWF, криптография, безопасность, GPGPU и суперкомпьютеры
Topic: sse2 реализация
Replies: 8
Views: 13090

Re: sse2 реализация

Если считать только 4 хэша за раз, то никакая оптимизация не поможет -- в MD5 очень сильная зависимость между инструкциями. 8 (а лучше 12-16) хэшей за раз позволяют довольно легко выйти на пиковую скорость в ~3 инструкции за такт на iCore. 64 бита (а точнее 8 дополнительных XMM регистров) действител...