Hi i am building a program that will take the text of a supplied file and encrypt using a password then save the encrypted text in another file. To decrypt the file you must provide the same password used to create the file. the program encrypts the text at a rate of about 5000 characters per second on a 500mhz Intel Pentium 3 running windows xp pro. I as wondering if that was an okay speed or if it is really slow. i have included a sample text document and the text file i get after i encrypt the text. Any info would be greatly appreciated.