The security of RC4 algorithm using keys generation depending on user's retina

Huda M. Salih, Raghda Salam Al mahdawi

Abstract


Digital technologies grow more rapidly; information security threats are becoming increasingly dangerous. Advanced and various cyber-attacks and security threats, like targeted emails, information exploitation, etc…, pose a critical threat that basically undermines our trust in the digital society. Rivest Cipher4 (RC4) algorithm is a significant cipher of a stream that could be utilized with protocols of the internet, the advantage of the RC4 algorithm is that it is simple and effective. There are several weak, especially after the (PRGA), Pseudorandom generating algorithm's initially 256 rounds (the amount of the RC4 permutation). Several modified RC4 studies have been published thus far, however, they all face either standard privacy or achievement evaluation issues. This paper proposes a new RC4 algorithm that is based on the user's retina (RC4-Retina), which has solved both of these weak points it was indicated in the standard RC4 algorithm. The novelty of keys (RKSA), which is generated by relying on the user's retina of the algorithm will modify the matrix of permutation used to configure the keys. The efficiency of the improved algorithm was measured by depending on the average security of ciphertext of different keys and different messages, results were good compared to the standard algorithm.

Keywords


Average security; RC4; Retina image; RKSA



DOI: http://doi.org/10.11591/ijeecs.v24.i1.pp%25p

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