I suspect you'd do better to take another container class, and either make it sorted, or simply sort it every time you add an item. I suspect that the requirement of items being unique is an assumption that could cause you grief in a lot of places within the class. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

you're mixing with the base64 encoding. Your sequence is: Encryption: get bytes of plaintext encrypt display base64 encoded ciphertext Decryption: get bytes of ciphertext decrypt display base64 encoded result but better and working solution ought to be Decryption: decode the ciphertext bytes from the base64 (FromBase64String) decrypt get string from bytes