FileEncryptor - Version 1.0.3.0 FileEncrypter is a small freeware utility that is capable of encrypting any file on any media storage with the officially recognized encryption algorithm - AES (Rijndael). The key length of the algorithm may vary from 128 to 256 bit to ensure the maximum protection of encrypted information.The use of FileEncryptor will help you to keep all important files safe no matter what happens because AES encryption algorithm has been proven to be unbreakable.