Mcrypt Rijndael encryption

Description

This feature allows you to apply an encryption to the resulted backup archive using an encryption key. Later you may decrypt that archive on any system that provides MCrypt support.

The only supported cipher is Rijndael which is in fact the same algorithm used by AES. You may opt between the 128/192/256 bit key with CBC encryption block.

Note that the Rijndael (aka AES) is the one of most secure cipher adopted worldwide by, among many others, the US government and their National Security Agency (NSA).

Comparing with OpenSSL this one is much slower but it is a good alternative when OpenSSL library is not around.