Lecture Topic: Public Key Encryption
Public Key Encryption, first proposed by Diffie and Hellman in 1976.

Asymmetric Encryption is when we use different keys for encrypting and decrypting text. It is slow and is used for encrypting keys, so you have to remember

One key: fast, large data
Pair of keys: slow, small data

Requirements for public key cryptography
It is computationally easy for party B to generate a pair
It is computationally easy for a sender A knowing the public key and the message to be encrypted M to generate the corresponding cipher text:
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