Bench-marking of traditional cryptographic algorithms and chaos-based algorithms with DNA operations

Abstract

This paper presents a bench-marking analysis between traditional cryptographic algorithms and chaos-based cryptographic schemes with DNA operations. The study consists in the evaluation of the security and performance of each algorithm destined for image encryption purposes based on pre-established criteria which include: the key space, distribution of the cipher image, correlation between pixels, number of pixels change rate, the unified average changing intensity, and execution time. The bench-marking was performed in a processing engine developed in Matlab in order to compare the algorithms under the same scenarios and conclude which one is more secure and suitable for image encryption. As a result of this study we conclude that AES-128 is most suitable cryptographic algorithm for image encryption, followed by 3DES. This proves that chaos-based cryptosystems with DNA operation do not offer an improvement in comparison of traditional symmetric encryption schemes for the purpose presented in this article.