最終更新:2009-07-01 (水) 09:06:06 (5414d)  

cRARk
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  • RARのパスワードを調べる。CUDA対応。

http://www.crark.net/

  • RAR 3.0以降は暗号化にAESを使っているから効率的なアタック方法が無いっぽい。
  • 6文字以上のパスワードのときは諦めること。

使い方

  • english.defを好みにいじってpassword.defにリネーム
  • ヘッダも暗号化されている場合はcrark-hpのほうを使う
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オプション 

Usage: CRARK [<options>] <rar_file>
Options are:
 -l<number>  - min password length (1 - 127, default = 1) } only if '*'
 -g<number>  - max password length (1 - 127, default = 5) } presents
 -p<name>    - use password definition filename, default = "password.def"
 -b          - make benchmark
 -v          - test charset and password definitions (do not crack)
 -c          - disable CUDA engine
 -fWXYZ      - set crypto functions #W,X,Y,Z (not recommended)
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メモ

  • Phenom II 940BE+GeForce 9800 GTX+で実行したときのログ
  • -m64とか引数を足すと少し進むけど途中で止まる。
T:\Temp\crark32>crark.exe -m64 crark32.rar
     cRARk 3.2a (CUDA enabled) Freeware
    Copyright 1995-2001, 2006-09 by P. Semjanov,
         http://www.crark.net
     portions (c) 1993-2005 Eugene Roshal
 (c) PSW-soft Password Cracking Library PCL v. 2.0d by P. Semjanov


Testing archive crark32.rar : version 2.9
Testing     readme                   : file is not encrypted
Testing     crackme.def              : file is not encrypted
Testing     english.def              : file is not encrypted
Testing     russian.def              : file is not encrypted
Testing     spanish.def              : file is not encrypted
Testing     file_id.diz              : file is not encrypted
Testing     cudart.dll               : file is not encrypted
Testing     crark.exe                : file is not encrypted
Testing     crark-hp.exe             : file is not encrypted
Testing     cRARk.html               : file is not encrypted
Testing     crark.rus.txt            : file is not encrypted
Testing     readme.rus.txt           : file is not encrypted
Testing     versions.txt             : file is not encrypted
Testing     crackme
CUDA device GeForce 9800 GTX+ found, multiprocessors = 16, GPU rate = 0.53
Choosing best crypto functions..................................................
..
Chosen: ASM  (Prescott/AMD), SSE2 (P4/Core 2) (-f1444)
Ticks per password expected = 17425714, theoretical = 27000000, CPU rate = 1.55

Processing line 56 of password definition file...
Testing 1-chars passwords ...
Testing 2-chars passwords ...
Block size is: 64 x 64 (-m64)
Testing 3-chars passwords ...
Block size is: 64 x 64 (-m64)
Testing 4-chars passwords ...
Block size is: 64 x 64 (-m64)
 ! cudaThreadSynchronize() failed: unknown error
Try to use -m32 option
Testing 5-chars passwords ...
 ! cudaMemcpy() failed: unknown error

Passwords tested = 370534 (time = 03:39.69, rate = 1687 p/s)
Total     tested = 370534, slow tests = 42
Password not found

Total passwords tested = 370534, slow tests = 42



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