Hello, 1) Is there a standard for representing a key for a particular algorithm ? (little vs big endian) ?? 2) I am implementing DES and want to know if the results of encrypt is right. Is there any sample/example/table somewhere which tells encrypting a given two 64byte data and result -... example(dummy): encrypt((123456676...),(3333444....)) = 555555555 Thx. Sunil.