Both __________ produce output that is independent of both the plaintext and the ciphertext.this makes them natural candidates for stream ciphers that encrypt plaintext by XOR one full block at a time.
A)CBC and ECB
B)OFB and CtR
C)ECB and OFB
D)CtR and CBC

Question

Quizplus · Accepted Answer

OFB (Output Feedback) and CTR (Counter) modes produce output that is independent of both the plaintext and the ciphertext, making them suitable for stream ciphers that encrypt plaintext by XORing one full block at a time.

Both __________ Produce Output That Is Independent of Both the Plaintext