Mcrypt is a simple encryption program, intended to be replacement for the old unix crypt(1).
Look at COPYING for license information and the individual files for more information. COPYING applies only for the mcrypt program and not the algorithms which most of them are public domain.
A mailing list on mcrypt is mcrypt-dev@lists.hellug.gr Subscribe by visiting http://lists.hellug.gr/mailman/listinfo/mcrypt-dev
The 2.6.x version of mcrypt can be compiled against libmcrypt 2.4.x and libmcrypt 2.5.x.
Updated versions of mcrypt and libmcrypt can be found at: http://mcrypt.hellug.gr