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
The primary goal of cRARk is to
recover your forgotten password on RAR archives. Any Rar/WinRar versions 2.x-5.x are supported.
Please bear in mind you have quite no chance to crack unknown password (longer than 6-7 symbols) if you have no additional info about it. 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:
All RAR versions support, including the latest RAR 5.x
One of the fastest RAR password recovery software, with the optimization for latest x86 instructions: AVX2, AVX, XOP, AES-NI, SHA extensions for Intel and AMD processors
Support of GPU password recovery on NVIDIA and AMD GPUs using CUDA and OpenCL technologies
Multi-volume, self-extracting, encrypted header archives support
Unique PDL language which is extremely efficient if user remembers any information about a forgotten password
Any (European) language support with native Unicode implementation
Portability (Windows, Linux, Mac OS versions are available)
Limitations of cRARk (comparing to Parallel Password Recovery):
No GUI, pause/resume feature etc
No multi-core support, only one CPU or GPU is used
Password length is limited to 28 symbols
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.
32-bit, ANSI (not supported, not updated)
cRARk v. 5.5 with OpenCL, Win64 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!
cRARk v. 5.5 CPU + OpenCL, binaries
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
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
There is no password to the crark’s executables and configuration files. 1. I don’t understand how to run your software.
cRARk is command-line tool and the password recovery is controled by password.def text file. If you are not aware with command-line utilitied, please use another software. 2. How to resume search from the password XXX?
Sorry, no way. I’s implemented in Parallel Password Recovery. 3. The program has been searching for 10 days, but my password is not yet at hand.
Alas! It can’t be helped. May be your password is too long, or the search set is wrong. Additional information on the password is necessary. 4. I have tested your program. To my mind, your program is nothing but utter error, it cannot even find “aaa2”-like password.
File password.def (from the distributed archive) searches through only lower-cased Latin letters. Change your password definition to “[$a $1] *” and everything will be ok. 6. I’ve got beginning of one file from archive in plain text. Will it be useful to me?
No. At least, I couldn’t use it. Could you? RAR encryption sources are available in WinRAR distribution. 7. I’d like to optimize your program. How can I get the sources?
You don’t need them. Take UnRar sources and optimize the SetCryptKeys() function. Next contact me. 8. I need GUI, multicore support, pause/resume etc.
cRARk is the free program, and I have no time to support such features. To find all you need, please look at GUI, multicore RAR Password Recovery which licensed cRARk and PDL engine.
More questions and answers you’ll find in the included documentation.
All modern NVIDIA or AMD GPU is ok. Intel GPUs are currently disabled due to low rate and the OpenCL issues. You always need the latest drivers! 2. My GPU is detected, but not used.
GPU is used only if you have ‘*’ in password definition. 3. I’ve got an error like “cudaThreadSynchronize failed: launch exceeded timeout” or “Display driver stopped and has recovered” or “clEnqueueWriteBuffer()/clEnqueueReadBuffer() failed”
a. If you’re using Windows, please read the article. Or simply run the file driver-timeout.reg from the cRARk’s archive and reboot. b. Try to use -d or -m options. c. Don’t run crark on primary graphics card, use separate GPUs for crark and monitor. 4. I’ve got “Abort trap 6” error on Mac OS
This means your GPU is too slow. You may try to use -m option, but probably using CPU is the better idea. 5. Program hangs after printing “Trying to compile XXXX kernel”.
Please install the latest drivers (see above).. Don’t overclock neither GPU nor CPU! If this not helps, please install the fresh copy of your operating system and install the drivers. 7. I’d like to optimize your CUDA code. How can I get the source?
Advanced Archive Password Recovery is a flexible, highly-optimized password recovery tool for ZIP and RAR archives, offering best-in-class performance for recovering the most complex passwords.
Advanced Archive Password Recovery is a flexible, highly-optimized password recovery tool for ZIP and RAR archives, offering best-in-class performance for recovering the most complex passwords. Guaranteed recovery is possible for many ZIP archives.
Альтернативы приложению Advanced Archive Password Recovery для Mac
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