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Secret key cryptography cannot assure non-reputation

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Question

1. Explain why secret key cryptography cannot assure non-reputation?

2. What is the block size used currently in AES?

3. What was the original key size used by Horst Feistel from IBM when he was working on what would later become DES?

4. Suppose there is a block cipher with very small block size (say 3 bits). List all possible blocks.

5. What version of AES (AES-XXX-YYY) is is used for your connection with reddit.com?

6. What does XXX refer to? What does YYY refer to?

Reference no: EM133478321

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