It also gives brief mathematical explanations. They are RSA cryptosystem and ElGamal Cryptosystem. In this report we are mainly concentrating on some asymmetric algorithms which are mostly used. RSA and Diffie–Hellman key exchange are the most widely used public key distribution systems, while the Digital Signature Algorithm is the most widely used digital signature system. It underpins such Internet standards as Transport Layer Security (TLS), PGP, and GPG. It is an approach used by many cryptographic algorithms and cryptosystems. Public-key cryptography refers to a cryptographic system requiring two separate keys, one of which is secret and one of which is public. Communication with Asymmetric algorithms will give us transmission of information without exchanging the key. To overcome the problems faced in symmetric key algorithms, people have chosen Asymmetric Key algorithms for communication.
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