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1996, cRARk 1.0 - just first RAR cracker 2006, cRARk 3.0 - fastest recovery of RAR 3.0 passwords 2009, cRARk 3.2 - world's first CUDA-aware RAR password recovery 2011, cRARk 3.4 - world's first OpenCL-aware RAR password recovery 2013, cRARk 5.0 - world's first RAR 5.0 password recovery | ||||||||||||||||||||||||||||||||||||||||||
cRARk purposeThe primary goal of cRARk is to
cRARk is the professional tool, it uses command-line interface, has no GUI. cRARk is the freeware utility for Win32/64, Linux, Mac OS. Features and limitations Advantages of cRARk are:
Limitations of cRARk (comparing to Parallel Password Recovery):
RAR security overview RAR/WinRAR archiver version 2.x used its proprietary, but rather strong encryption algorithm. At least no RAR 2.0 attacks were known except brute force for password recovery. Starting from version 3.0, RAR has been using a strong AES algorithm, which also doesn't allow any attacks more effective than the brute force. Besides, the key derivation function uses more than 70000 SHA-1 transformations and brute force rate on modern CPU is very low, only several hundreds of passwords per second. RAR 5.0 encryption is quite the same, using PBKDF2 key derivation with SHA-256 hash and the rate is even slower (in 25-100% on different hardware comparing to RAR 3.0). This means that RAR password encryption is one of the strongest between popular encryption systems in the context of brute force rate. |
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64-bit, Unicode |
32-bit, ANSI |
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| Windows |
recommended for all modern GPUs |
cRARk v. 5.2a with CUDA/OpenCL support, Win32/Win64 This is the last version supporting Windows XP and NVIDIA G80 cards! Will not be updated! |
| Linux |
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cRARk v. 3.43 with CUDA support, binaries, kernel 2.6.24 cRARk v. 3.43 with OpenCL support, binaries, kernel 2.6.24 cRARk v. 3.41 with no GPU support, binaries, static, 700K |
| Mac OS X |
cRARk v. 5.2a with OpenCL support, for Intel, AMD and NVIDIA GPU, binaries |
cRARk v. 3.43 with CUDA support recommended for NVIDIA GPU cRARk v. 3.43 with OpenCL support recommended for AMD GPU and no GPU |
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Crark GUI wrapper for Windows (900K) I'm not an auhtor of this software, I'm not liable for any its using. Please contact directly the author if you find any bugs | ||
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Customer's FAQ
About CUDA/OpenCL support
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PDL Language
A good online descripion of PDL language you may find here. Contact
If you find any bugs, please contact pavel@semjanov.com. The questions like "What is the archive password?" will not be answered.. | ||
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Last updated: 5 Jul 2024 © Pavel Semjanov, 2000-24
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