Cryptology ePrint Archive: Report 2014/466

On a new properties of number sequences ,a randomness test and a new RC4's key scheduling algorithm.

Samir Bouftass and Abdelhak Azhari

Abstract: In this paper, we introduce the concept of the derivative of sequence of numbers and define new statistical indices by which we discoverd new properties of randomly generated number sequences. We also build a test for pseudo random generators based on these properties and use it to confirm the weakness of RC4 key scheduling algorithm that has been reported in the litterature. In this rescpect we publish a new RC4's key scheduling algorithm that don't have this weakness.

Category / Keywords: secret-key cryptography /

Date: received 16 Jun 2014

Contact author: crypticator at gmail com

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Version: 20140617:150409 (All versions of this report)

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