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Lecture 5: Email security: PGP

Lecture 5: Email security: PGP. Anish Arora CSE 5473 Introduction to Network Security. Email security. email is one of the most widely used and regarded network services; essentially file transfer, except: sender and receiver not present at same time

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Section 4.6: Digital Signatures

Section 4.6: Digital Signatures. A problem that occurs with a public key cryptosystem deals with message authenticity. The receiver wants to be certain that the message came from the intended sender. An enemy can send a message using the recipient’s public key and pose as someone friendly.

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