Performance analysis of modified RC4 encryption algorithm

Author

Jindal, Poonam ; Singh, Bawa

Author_Institution

ECED, Nat. Inst. of Technol., Kurukshetra, India

fYear

2014

fDate

9-11 May 2014

Firstpage

1

Lastpage

5

Abstract

RC4 is one of the most widely accepted stream cipher on account of its structural simplicity, encryption and decryption speed and efficiency. In this paper, we report on several vulnerabilities of RC4 algorithm and further propose a modified RC4 (MRC4) algorithm to overcome the weaknesses of RC4. Working of RC4 consists of two parts: key scheduling algorithm (KSA) and pseudo random number generator algorithm (PRGA). In MRC4, additional layers are added to both KSA and PRGA without modifying its basic structure. Performance analysis of the conventional RC4 algorithm and its proposed variant has been performed in terms of running time, security, and randomness analysis. Through numerical results it is shown that while retaining the simplicity of RC4, MRC4 enhances the security of the stream cipher.

Keywords

cryptography; random number generation; RC4 algorithm; decryption; key scheduling algorithm; modified RC4 encryption algorithm; pseudo random number generator algorithm; stream cipher security; Algorithm design and analysis; Cryptography; MRC4; RC4; Wireless Network Security;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Advances and Innovations in Engineering (ICRAIE), 2014

Conference_Location

Jaipur

Print_ISBN

978-1-4799-4041-7

Type

conf

DOI

10.1109/ICRAIE.2014.6909247

Filename

6909247