dc.contributor.author |
Hammood , Maytham M. |
|
dc.contributor.author |
Yoshigoe ,Kenji |
|
dc.contributor.author |
Sagheer, Ali M. |
|
dc.date.accessioned |
2018-07-31T08:47:52Z |
|
dc.date.available |
2018-07-31T08:47:52Z |
|
dc.date.issued |
2015 |
|
dc.identifier.issn |
2210-1519 |
|
dc.identifier.uri |
https://journal.uob.edu.bh:443/handle/123456789/1773 |
|
dc.description.abstract |
Wireless communication security is a critical factor for secure communication among large scale of wireless networks. A limited resource constraint, such as power and memory size presents a significant challenge to implement existing cryptographic algorithms. One of the most important symmetric cryptographic algorithms is Rivest Cipher 4 (RC4) stream cipherthatis utilized in many real-time security applications. However, the RC4 cipher shows some weaknesses, including a correlation problem between the public known outputs of the internal state. In this paper, we propose RC4 stream cipher with a random initial state (RRC4) to solve the weak keys problem of the RC4 using a random initialization of internal state S. We also propose RC4 stream cipher with two state tables (RC4-2S) to solve the correlation problem between the public known outputs of the internal state using permutation between state1 (S1) and state 2 (S2) while requiring less time than RC4. Finally, we propose RC4 stream cipher with two state tables togenerate four keys (RC4-2S+) in each cycle which further enhances randomness overRC4-2S and RRC4. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
University of Bahrain |
en_US |
dc.rights |
Attribution-NonCommercial-ShareAlike 4.0 International |
* |
dc.rights.uri |
http://creativecommons.org/licenses/by-nc-sa/4.0/ |
* |
dc.subject |
Encryption |
|
dc.subject |
Stream Cipher |
|
dc.subject |
RC4 |
|
dc.subject |
Random Number Generator |
|
dc.title |
Enhancing Security and Speed of RC4 |
en_US |
dc.type |
Article |
en_US |
dc.identifier.doi |
http://dx.doi.org/10.12785/IJCNT/030201 |
|
dc.volume |
03 |
|
dc.issue |
02 |
|
dc.source.title |
International Journal of Computing and Network Technology |
|
dc.abbreviatedsourcetitle |
IJCNT |
|