This is a rarcrack password cracker that uses the brute force attack To compile Librairy: $ cd unrar/ $ make lib -f makefile.unix $ cp libunrar.so .. -p X defines that rarcrack will use X process -t X defines that rarcrack will use X threads To execute: LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH ./rarcrack -p [NB] [RARFILE]