期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：52
期号：1
出版社：Journal of Theoretical and Applied
摘要：In this article, we present a new symmetrical encryption system based on symmetric encryption SEC, it formalizes the problem of encryption to a combinatorial optimization problem and uses evolutionary algorithms to solve it. The main objective of this work is to strengthen the resistance of the encryption system �SEC� against cryptanalysis by the characters frequencies study. The Balancing process (BP) is introduced to change the appearance frequencies of characters, and to reach equilibrium. Through the key generated by our algorithm, we illustrate the process of encryption and decryption. Examples of applications will be given at the end of this article, the results show that our new system is robust and resists to any attack by frequency analysis.
关键词：Symmetric Encryption; Evolutionary Algorithms; Combinatorial Optimization; SEC; Frequency Analysis.
