Search found 4 matches

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by gotofbi
Thu May 20, 2010 5:01 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Apple iPhone NCK
Replies: 5
Views: 5263

Re: Apple iPhone NCK

Ive done more research and realize that the algo on readme is wrong the correct algo is "RSA(TEA(SHA(NCK)+NORID+CHIPID),rsa_key2)" So, ive looked some of SHA1 bruteforcer based on CUDA but they are not that fast(about 1/3 speed of MD5 calc) Although TEA calc is really simple so shouldnt take that lo...
by gotofbi
Tue Apr 13, 2010 9:41 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Apple iPhone NCK
Replies: 5
Views: 5263

Re: Apple iPhone NCK

Yes its amazingly slow :D However, optimization + power CUDA will surely boost the speed of calculation. Plus, there must be rule for NCK number and if people starts find the NCK, im pretty sure we can reduce it to 13digit. And if it is 13digit with 1mil keys per sec, it will be done about a day. Ho...
by gotofbi
Mon Apr 12, 2010 9:33 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Apple iPhone NCK
Replies: 5
Views: 5263

Re: Apple iPhone NCK

Since this is theoretical bruteforcer, no-one actually achieved the real successful work since its 15digit based key. However, geohot, who originally wrote the code, made a test token so he can test the bruteforce. "nckbf ltoken_test rsa_key2 8" is how to use the program with test token. And the out...
by gotofbi
Sun Apr 11, 2010 12:40 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Apple iPhone NCK
Replies: 5
Views: 5263

Apple iPhone NCK

First of all, your program is amazing!!! I didnt expect that GPGPU/CUDA has such power compare with CPU After running the BarsWF, I thought about requesting one bruteforcer: iPhone NCK brute force. There is one brute force out there but its really old and slow. However, the author of program kindly ...