嵌套Feistel结构的SP型分组密码的可证明安全性

Provable Security for SPN Block Ciphers Containing Feistel Structure

摘要: 给出一个嵌套Feistel结构的SP型分组密码的模型及其抵抗差分密码分析和线性密码分析的可证明安全性 ,所获得的结果主要基于对SP型密码的可证明安全性的一个推广性结果的证明依照模型 ,给出了一个具体的分组密码的例子

Abstract: A model of SPN ciphers is proposed, which contain Feistel structure with provable security against differential cryptanalysis and linear cryptanalysis. It’s based on a generalized result of provable security of SPN ciphers. One practical example using this model is also given.