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2009-12-02 11:40:00
mcrypt is a replacement for the popular command. The crypt was a file encryption tool that was using an very close to the cipher, which was broken. Mcrypt provides the same functionality but uses several modern algorithms such as . Libmcrypt, Mcrypt's companion, is a library of code which contains the actual encryption functions and provides an easy method for use.
Examples of mcrypt usage in a linux command line environment:
mcrypt --list /* see available encryption algorithms */
mcrypt -a blowfish myfilename /* encrypts myfilename to myfilename.nc */
/* using blowfish encryption algorithm */
/* you are prompted 2x for passphrase */
mcrypt -d mytextfile.txt.nc /* decrypts mytextfile.txt.nc to mytextfile.txt */
mcrypt --help
It implements numerous algorithms, mostly and , some of which falls under in the . Algorithms include , , , , , , , , threeway, , ,
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