Question: A. What types of attacks are addressed by message authentication? B. What is the difference between a message authentication code and a one-way hash function?

A. What types of attacks are addressed by message authentication?

B. What is the difference between a message authentication code and a one-way hash function?

C. What are the properties a digital signature should have?

Orignal answers only. No copy/paste of thumbs down. A few sentences per each only.

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