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Encrypts files or streams

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


version 2.6.8 (stable)
released on 22 November 2008

VCS Checkout

password: anonymous




Verified by

Verified on


Verified by

Janet Casey

Verified on

11 May 2001

Leaders and contributors

Nikos Mavroyanopoulos Maintainer

Resources and communication

AudienceResource typeURI
DeveloperVCS Repository Webview
Bug Tracking,Developer,
Debian (Ref)
Perl (Ref)

Software prerequisites

Required to uselibmhash (
Required to buildlibmhash
Source requirementlibmhash

This entry (in part or in whole) was last reviewed on 20 April 2018.


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"Perl (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

"Debian (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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