Hi,
Like describe in the FIPS 46-3 a DES key must have it heavy bit as parity bit. I try to encipher with a key without no correct parity bits and with this key where I put the correct parity bits the same message using openssl. I obtain two different enciphered messages. My answers are : 1 Is-it normal that OpenSSL can use a DES key with no correct parity bits ? 2 Why the result with the two different key is not the same (normally only 56 bits are used and are the same in the two keys) Thank you for your response. Regards. L. Broussy