Question: Given the Cipher Block chaining algorithm: C i-1 = IV C i = E k (P i XOR C i-1 ) Encrypt the binary message

Given the Cipher Block chaining algorithm:

C_i-1 = IV C_i = E_k(P_i XOR C_i-1) Encrypt the binary message (P₀-P₄) where the plaintext message is broken into 8 bit blocks using the key (E_k) and the initialization vector (IV) shown.

Assume that the Simple Cipher (SC) or encryption is performed in two steps:

Invert all the bits in the block.
Rotate the inverted bits four bits to the right.

The inputs are:

IV = 4E_x
Key = E5_x
P₀ = 9A_x
P₁= B4_x
P₂= 79_x
P₃= D0_x

What is C₃?

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