A New Variant of RC4 Stream Cipher

Authors: Lae Lae Khine

Abstract:

RC4 was used as an encryption algorithm in WEP(Wired Equivalent Privacy) protocol that is a standardized for 802.11 wireless network. A few attacks followed, indicating certain weakness in the design. In this paper, we proposed a new variant of RC4 stream cipher. The new version of the cipher does not only appear to be more secure, but its keystream also has large period, large complexity and good statistical properties.

Keywords: Cryptography, New variant, RC4, Stream Cipher.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1071019

References:

[1] Andrew Roos, "A Class of Weak Keys in the RC4 Stream Cipher". Preliminary Draft, 22 September, 1995.
[2] Fhlurer, I Martin, A Shamir, "Weakness in the key Scheduling Algorithm of RC4" Proceedings Selected Areas in Cryptography 201, SAC-01, LNCS vol. 2559, pp.1-24, Springer-Verlag, 2001.
[3] Grosul A.L., Wallach D.S. "A related key cryptanalysis of RC4", 2000.
[4] Mantin I. Shamir A. "A practical attack on broadcast RC4", Proceeding of FSE. 2001.
[5] Matthew E. McKague. "Design and Analysis of RC4 like Stream Ciphers". Matthew E.McKague, 2005.
[6] NIST Special Publication 800-22, "A Stastical Test Suite for Random and Pseudorandom Number Generator for Cryptographic Applications", May, 2001.
[7] S. Mister and S. E. , Cryptanalysis of RC4-like ciphers , Selected Tavares Areas in Cryptography (Kingston , ON, 1998), Lecture Notes in Comput. Sci., vol. 1556, pp. 131-143, Springer, Berlin, MR MR1715807, 1999.