Question 264:
How does 3DES use the DES algorithm to encrypt a message?
Answer options:
A. encrypts a message with K1, decrypts the output with K2, then encrypts it with K3 B. encrypts a message with K1, encrypts the output with K2, then encrypts it with K3 C. encrypts K1 using K2, then encrypts it using K3, then encrypts a message using the output key D. encrypts a message with K1, encrypts the output with the K2, then decrypts it with K3