基于动态策略的S盒设计研究

分组密码作为信息安全应用的主流加密方法，在无线传感器网络中也得到了广泛应用。而S盒作为分组密码算法的核心模块之一，其设计好坏直接影响着整个密码算法。为了在有限的资源下，提高分组密码算法的安全强度，对分组密码算法以及S盒构造设计进行了深入的分析研究，结合Feistel架构和S盒重构的思想，提出了动态S盒的设计方案，并对其进行了相关分析验证。结果表明，经过该设计，安全性能确实有所提高。

Design and Research of S-Box Based on Dynamic Strategy

Block cipher encryption is the mainstream method of information security application,and it has been widely used in wireless sensor networks.S-box which is one of the core modules of block cipher algorithm has a direct and significant impact on the entire cipher algorithm.In order to improve the secure strength of the block cipher algorithm with the limited resource,a lot researches on it and analyses of S-box structure design had been done,then the design scheme of dynamic S-box which can improve the security of S-layer by learning from the architecture of Feistel and the reconstruction of S-box came out.The result of the test showed that the project really can work on the increasing of security.