差分密码分析 meaning in Chinese
differential cryptanalysis
Examples
- 4 . security of a class of block ciphers based on chaotic maps against differential and linear cryptanalysis is studied . the results show that this kind of cipher structure is not good compared with some famous cipher structure such as cast - 256 cipher structure and common feistel structure
对一类基于混沌函数的分组密码结构gfs4 ( gfs8 )的安全性做了评估，分析结果表明：从抵抗差分密码分析和线性密码分析的安全性与所需要的执行代价相比，这类密码结构不如cast - 256型密码结构和普通的feistel型密码结构。 - Adopting this model and properly selecting some nonlinear and linear modules which has good cryptographic properties , a concrete block cipher can thus be constructed , which is provably secure against differential and linear cryptanalysis , and also has self - inverse structure for encryption and decryption
采用该模型，只需适当选取密码特性好的非线性模块和线性模块，就可以构造出具有很好地抵抗差分密码分析和线性密码分析的能力、加解密相似的分组密码算法； 3 - Aes - ccm mode use counter mode application simple , systematic expense little , may raise the efficiency of encryption . aes algorithm is presented in allusion to differential cryptanalysis and linear analysis . therefore , the security of aes algorithm in current stage have enough guarantee
而aes算法是针对差分分析和线性分析提出的，它的最大优点是可以给出算法的最佳差分特征的概率及最佳线性逼近的偏差界，具有抵抗差分密码分析及线性密码分析的能力，因此aes算法的安全性在现阶段是有足够保障的。 - The structures , styles , advantages and disadvantages of some frequently used block ciphers are given in detail . the design rules and the structure methods for the round - function , s - boxes , p - permutation of the block cipher as well as several rules for the key - expansion algorithm are discussed in detail . the most two typical block ciphers , rijindael algorithm ( advanced encryption standard ) and camellia algorithm ( new european schemes for signatures , integrity and encryption ) are introduced
本论文首先介绍了国内外现有的几种攻击分组密码的典型方法，包括差分密码分析、线性密码分析以及针对aes的代数攻击的最新进展；然后针对各种已有的密码攻击手段，给出了分组密码的一般设计原理，并详细阐述了分组密码结构类型及其各个部件的设计准则和构造方法，最后介绍了当前国际上最具有代表性的两个分组密码算法? rijndael算法(高级加密标准)和camellia算法(新的欧洲签名、完整性认证和加密方案) 。