The paper discusses the advaces in knapsack-type public key cryptosystems and in the corresponding breaking methods, and thinks that the Ritter attack which combines the L3 algorithm and pruned enumeration is the most effective method.
讨论了背包类公钥体制和相应的破译方法的进展,认为组合了L3算法与修剪枚举的Ritter攻击是最有效的方法。
参考来源 - 背包类公钥体制的破译与反破译A method how to construct non-linear orthomorphic permutations is introduced based on maximal linear orthomorphic permutations, and the enumeration of maximal linear orthomorphic permutations is solved out based on polynomial theory in finite fields.
利用有限域上的多项式理论解决了最大线性正形置换的计数问题。
参考来源 - 分组密码体制中置换理论的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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