Comparative Study of Symmetric Key Cryptographic Algorithms CAST, IDEA, RC, Camellia and SAFER

Abstract

Information security plays very important role in storing and transmitting the data through unsecured channel. In the network security, cryptography plays vital role to maintain the CIA triad that is Confidentiality, Integrity, Authentication and non-repudiation of information. Therefore the security of information is much important in data storage and transmission process. Cryptography also ensures that the message should be sent without any change and only the intended authorized person can be able to read the message. There are various cryptographic techniques developed for achieving secure communication. Using cryptography, the data is encoded before sending it and decoded after receiving, Cryptographic algorithms are broadly divided into two types, symmetric key and asymmetric key cryptographic algorithms. This paper deals with the comparative study of various symmetric key cryptographic algorithms CAST, IDEA, RC, Camellia and SAFER.