摘要
针对SARER 64密码系统给出了两种形式的差分构成混合差分对,研究了差分对与密文对分布的关系。发现不同差分对所对应的密文对集合在阶数上和元素分布上都是不均匀的,并且有许多空集,由此建立了密码分析的新方法———混合差分法。理论分析和数字试验表明它是攻击SAFER 64的有效方法。
Two kinds of differential for the cryptanalysis of SFAER\|64 are introduced to form the differential pair. It is found in the investigation for the relationship between the differential pairs and ciphertext pairs that the ciphertext pair sets of various differential pairs are different in the number and distribution of the elements. For this, a new cryptanalysis method is presented, which termed bybrid differential method. It is shown to be an effective method attacking on SFAER\|64 by the theoretical analysis and digital test in the paper.
出处
《中国计量学院学报》
2003年第2期109-113,共5页
Journal of China Jiliang University
