Confidentiality: Asymmertic Encrypton

Abstract

Asymmetric encryption is a form of cryptography in which one key is used to encipher and the other to decipher. The two keys are mathematically related, and if it is possible to make one of the keys public and still maintain the algorithm security, then the system is called public-key. The most used public-key ciphers, the Pohlig-Hellman algorithm, the RSA algorithm, the ElGamal algorithm, and Diffie-Hellman, are discussed in this chapter.