Introduction

This is an interface to the mcrypt library, which supports a wide variety of block algorithms such as DES, TripleDES, Blowfish (default), 3-WAY, SAFER-SK64, SAFER-SK128, TWOFISH, TEA, RC2 and GOST in CBC, OFB, CFB and ECB cipher modes. Additionally, it supports RC6 and IDEA which are considered "non-free". CFB/OFB are 8bit by default.

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User Contributed Notes 3 notes

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c dot light93 at gmail dot com
2 months ago
if you get a "The mcrypt extension is missing" alert somewhere, use
"sudo php5enmod mcrypt" and restart your server to enable it.
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remi at php dot net
28 days ago
This extension rely in libmcrypt which is dead, unmaintained since 2007.

Please don't rely on it, consider switching to well maintained alternatives (openssl, crypt, password hashing functions, phpseclib, password_compat...)
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sujithayur at gmail dot com
3 years ago
In linux systems,mcrypt is necessary for installing CMSes like majento. First You need to install the mcrypt library.

If using a Debian-based Linux system, you can run the following commands:

  sudo apt-get install php5-mcrypt

then restart the apache server

  sudo /etc/init.d/apache2 restart
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