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(Choose 2 answers)
FU inish the exam.
Suppose Pi indicates the plaintext input for the block cipher i from the sender's perspective, e.g., P2 is the
plaintext input for the 2nd block cipher, and Ci is the ciphertext input for the block cipher i from the receiver's
perspective. (If there were no errors, Ci is also the ciphertext output of the block cipher i from the sender.)
Which of the following scenarios causing errors affect C3 (and cause error in C3)?
A. Error occurs on C2 for ECB Mode.
B. Error occurs on P2 for CFB Mode.
C. Error occurs on C2 for CFB Mode.
D. Error occurs on C2 for CTR Mode.
E. Error occurs on P1 for CBC Mode.
F. Error occurs on C2 for OFB Mode
