If you forget your password for compressed archive (rar, 7z, zip), RarCrack is the solution. RarCrack uses a brute-force algorithm to find correct password. You can specify which characters will be used in password generations.
Preparing your system for installation
Install the following package
# aptitude install libxml2-dev build-essential
Download the latest version of rarcrack from here
# wget http://surfnet.dl.sourceforge.net/sourceforge/rarcrack/rarcrack-0.2.tar.bz2
Extract the tarball file
# tar xvjf rarcrack-0.2.tar.bz2
# cd rarcrack-0.2
# make
# make install
Using Rarcrack
rarcrack your_encrypted_archive.ext [--threads thread_num] [--type rar|zip|7z]
Example with a rar-file, 7z-file, and zip-file
# rarcrack password_protected.rar
# rarcrack password_protected.7z
# rarcrack password_protected.zip
This will help you to crack the rar password using brute force attack.
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