期刊名称：International Journal of Computer Science and Network
印刷版ISSN：2277-5420
出版年度：2012
卷号：1
期号：3
出版社：IJCSN publisher
摘要：RC4 is most widely used stream cipher. In many standardsecurity protocols is used the RC4 like in Wi-Fi Protocol Access(WPA) and Wired Equivalence Privacy (WEP). Here we proposea new enhanced RC4 algorithm named as PC-RC4. It is anextension of standard RC4 Algorithm. The basic purpose of thisenhancement is to making strong RC4 algorithm. RC4 streamcipher is basically two stages process named: KSA & PRGA.The weakness and attacks are found in both the stages of RC4. Inthis context, this paper is trying to making strong to both thestages of RC4 Stream Cipher. The backbone of the RC4algorithm is shuffling operation in both the stages KSA &PRGA. In the PC-RC4 Stream cipher is improved randomness inKSA as well as in PRGA to make it strong. In this paper westudied and analyzed some potential vulnerabilities of RC4algorithm and proposed some appropriate changes on standardRC4 algorithm to overcome. A pragmatic approach used toanalyze PC-RC4 in different scenarios
