Describe public key algorithm with required diagram.
Subject Computer and Network Security
NU Year Set: 4.(a) Marks: 5 Year: 2015

PKC is a cryptographic algorithm and cryptosystem component implemented by a variety of internet standards, including Transport Layer Security (TLS), Pretty Good Privacy (PGP), GNU Privacy Guard (GPG), Secure Socket Layer (SSL) and Hypertext Transfer Protocol (HTTP) websites.

PKC facilitates secure communication through an insecure channel, which allows a message to be read by the intended recipient only. For example, A uses B's public key to encrypt a message to B, which can be decrypted using B's unique private key.


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