Security

Improved Caesar Cipher With Random Number Generation Technique and Multistage Encryption

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Executive Summary

Secured communication involves encryption process at the sending end and decryption process at the receiving end of the communication system. Many ciphers have been developed to provide data security. The efficiency of the ciphers that are being used depends mainly on their throughput and memory requirement. Using of large key spaces with huge number of rounds with multiple complex operations may provide security but at the same time affects speed of operation. Hence in this paper, the authors have proposed a method to improve Caesar cipher with random number generation technique for key generation operations. The Caesar cipher has been expanded so as to include alphabets, numbers and symbols.

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