Mcrypt - Free Software Directory

Free Software Foundation!

Join now


From Free Software Directory
Jump to: navigation,

mcrypt is a program for encrypting files or streams. It is intended to be a replacement for the old UNIX crypt. It uses well-known and well-tested algorithms like DES, BLOWFISH, TWOFISH, ARCFOUR, CAST-128, and more in several modes (CBC, CFB, etc.). It also has a compatibility mode with the old UNIX crypt and Solaris des. Some of the algorithms that mcrypt may use (like RC6 and IDEA) are not free in all countries. These algorithms are provided as extension modules to libmcrypt (the library which implements all the algorithms and modes found in mcrypt). Users should contact the companies listed in docs/README.nonfree, if you live in a country where is illegal to use them.


User manpage available in HTML format from


Download version 2.6.8 (stable)
released on 22 November 2008

VCS Checkout

password: anonymous



LicenseVerified byVerified onNotes
LGPLJanet Casey11 May 2001

Leaders and contributors

Nikos Mavroyanopoulos Maintainer

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Required to use libmhash (
Required to build libmhash
Source requirement libmhash

This entry (in part or in whole) was last reviewed on 1 March 2017.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

Personal tools