期刊名称：International Journal of Computer Science and Communication Networks
电子版ISSN：2249-5789
出版年度：2011
卷号：1
期号：3
页码：258-263
出版社：Technopark Publications
摘要：In this paper, we propose an improved block cipher symmetric encryption algorithm that has the same structure of encryption and decryption. So far, conventional cryptography algorithms have difference structure of encryption and decryption. We devise our algorithm by inserting a symmetric layer using random number, encryption number and XOR operations, in which the whole proposed algorithm rounds uses encryption procedure and the same for it decryption procedure. The symmetry layer is put between encryption part and decryption one. The proposed algorithm has the batter speed compared with the comparing encryption algorithm. Nevertheless, the proposed algorithm improves encryption security by inserting the symmetric layer. The proposed algorithm will be useful to the applications which require the same procedure of encryption and decryption.
