Cryptography Teacher Question:

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What is the block size in the Simplified AES algorithm?
a) 8 bits
b) 40 bits
c) 16 bits
d) 36 bits

Cryptography Teacher Interview Question
Cryptography Teacher Interview Question

Answer:

b) 40 bits
Explanation: The block size for the AES algorithm is 16 bits.

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On perform the Mix Columns transformation for the sequence of bytes “67 89 AB CD” we get output
a) {08 55 FF 18}
b) {28 45 EF 08}
c) {28 45 FF 18}
d) {25 35 EF 08}		A straight permutation cipher or a straight P-box has same number of inputs as

cipher
Frames
Outputs
Bits