Problem1 when we talk about authentication in pgp or smime, Ask an Expert

Problem

1. When we talk about authentication in PGP (or S/MIME), do we mean message authentication or entity authentication? Explain.

2. If cryptography algorithms in PGP or S/MIME cannot be negotiated, how can the receiver of the e-mail determine which algorithm have been used by the sender?

3. Can we use SSL with UDP? Explain.

4. Why is there no need for security association with SSL?

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Computer Network & Security, Computer Science

Category:- Computer Network & Security
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