An effective RC4 stream cipher

RC4 is the most widely used stream cipher around. A lot of modifications of RC4 cipher can be seen in open literature. Most of them enhance the secrecy of the cipher and the security levels have been analyzed theoretically by using mathematics. In this paper, a new effective RC4 cipher is proposed a...

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Bibliographic Details
Main Author: Weerasinghe, T. D. B.
Format: Conference Proceeding
Language:English
Subjects:
Algorithm design and analysis
Ciphers
Conferences
Data encryption
Encryption
Entropy
RC4 modifications
Secrecy of ciphers
Stream cipher
Throughput
Online Access:Request full text
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Summary:RC4 is the most widely used stream cipher around. A lot of modifications of RC4 cipher can be seen in open literature. Most of them enhance the secrecy of the cipher and the security levels have been analyzed theoretically by using mathematics. In this paper, a new effective RC4 cipher is proposed and the security analysis has been done using Shannon's Secrecy theories where numerical values are obtained to depict the secrecy. The proposed cipher is a combination of Improved RC4 cipher proposed by Jian Xie et al and modified RC4 cipher proposed by T.D.B Weerasinghe, which were published prior to this work. Combination is done in such a way that the concept used in the modified RC4 algorithm is used in the Improved RC4 cipher by Jian Xie et al. Importantly, an immense improvement of performance and secrecy are obtained by this combination. Hence this particular modification of RC4 cipher can be used in software applications where there is a need to improve the throughput as well as secrecy.
ISSN:2164-7011
2690-3423
DOI:10.1109/ICIInfS.2013.6731957