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:

1. Invert all the bits in the block.
2. 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?

BA

BE

AE

EB

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