Digital signature

1. Briefly explain the steps of message digest generation in Whirlpool with a block diagram.

2. How the diffusion layer differs in Whirlpool block cipher W and AES?

3. Mention any four differences between Whirlpool block cipher W and AES.

4. Write a short note on Whirlpool cipher W.

1. What is a digital signature?

2. Differentiate digital certificate with digital signature.

3. What are the uses of digital signature?


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