文章基本信息

标题：A Modified Feistel Cipher Involving a Pair of Key Matrices, Supplemented with XOROperation, and Blending of the Plaintext in each Round of the Iteration Process
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作者：V.U.K. Sastry ; K. Anup Kumar
期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2012
卷号：3
期号：1
页码：3133-3141
出版社：TechScience Publications
摘要：In this paper, we have devoted our attention to the study of a block cipher which is obtained by modifying the classical Feistel cipher. In this, the plaintext block is divided into two matrices of equal size, and one of the matrices is multiplied by one key on the left side and the other key on the right side. The resulting expression is subjected to modulo operation. After interchanging the portions of the plaintext, they are blended very thoroughly (by converting the decimal numbers into binary bits) in each round of the iteration process. The avalanche effect shows that the cipher is reliable, and the cryptanalysis firmly confirms that the cipher is a strong one.
关键词：Encryption; Decryption; key; plaintext;cipher text; Blending; Avalanche Effects etc.a