Embedded key cryptosystem for cloud computing applications (original) (raw)

Proceedings of the 2nd International Conference on Future Networks and Distributed Systems, 2018

Abstract

As the internet1 and computer cloud are becoming increasingly dependable for almost all applications, data security issues are becoming crucial. In this paper, a new symmetric block cipher cryptographic algorithm is developed that would be suitable as a lightweight cryptosystem suiting database implementation for cloud computing platforms. Shannon principle of confusion and diffusion is achieved by the substitution, transposition, and mathematical operations conducted on block size of 64 bits. The private key is generated using the block content itself, and its content is embedded into the data blocks, different key is used for each block. The algorithm adopts two tables; one for the character set used and the other for the key elements generation. The confidentiality of these tables is responsible for the key strength. Experimental implementation proves the algorithm feasibility.

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