A software that takes as input Word Document and encrypts/decrypts using 128 or 256 bit keys. Encryption must be done with two fish or AES but i am still open to other suggestions. The software must have a simple and nice interface, in visual studio .net in c++ , Technical document, user manual, comments on code and also followed with a key generator for 128 and 256 bit keys pairs for encryption/decryption. Also an installer must be included.