A Novel Symmetric Key Cryptography using Multiple Random Secret Keys

Abstract

Cryptography is an essential practice required for secure communication between two parties. It preserves the confidentiality, integrity, availability, and authenticity of information thereby enhances the security of the data processing system and the information flow within an organization. Symmetric and asymmetric key cryptography are used for encryption and decryption of a message. Symmetric key cryptography is the most commonly used cryptography as it is fast and feasible for use in decrypting bulk messages and requires less computer resources. Chosenplaintext attacks have been proposed for symmetric key cryptography as it uses single secret key to encrypt different messages. This paper introduces a novel symmetric key cryptography, where multiple random secret keys can be used to encrypt different messages, which is insecure under cipher text-only attacks, a weaker form of attack than chosenplaintext attacks. General Terms Information Security, Cryptographic Algorithm.