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boolean function中文是什么意思

  • 布耳函数
  • 布尔运算
  • 代数范式
  • 逻辑函数
  • 有限布尔函数

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千万人都在用的超大词汇词典翻译APP

  • 例句与用法
  • An investigation of the rijndael algorithm which is the advanced encryption standard of usa is taken in this thesis . we have focused on developing the cryptographic properties of the rijndael sbox from the viewpoint of boolean function , walsh spectrum and algebraic structures , on the attacks against the reduced variants of rijndael , and on the optimized implementations of rijndael . the key contributions follow below
    本文对美国高级加密标准rijndael算法进行了比较深入的研究,内容包括:从布尔函数、 walsh谱和代数结构的角度对其s盒密码性质进行的研究,简化算法的攻击方法以及算法的优化实现问题,主要成果有: 1 、提出求解布尔函数表达式的两种新方法,具有简洁、易于编程实现、准确而快速的特点,应用于des算法获得与公开文献相符的结果,应用于rijndael算法首次求出其s盒布尔函数表达式。
  • Using the theories of probability , algebra and number theory comprehensively , we investigate a class of boolean functions with three - valued walsh spectrum in the first part of this dissertation : the properties of the extended semi - bent functions , which are constructed from any two bent functions , are studied , followed by the structure characteristics of the boolean functions satisfying propagation criterion with respect to all but two vectors ; the definition and cryptographic properties of k - order quasi - bent functions are proposed whose walsh spectrum takes on only three values . some sufficient and necessary conditions are offered to decide whether a boolean function is a k - order quasi - bent function ; a special method is presented to construct the k - order quasi - bent functions , whose cryptographic properties are explored by the matrix method , which is different from the method of walsh spectrum and that of autocorrelation of boolean functions ; the application of this kind of boolean functions in the fields of stream cipher , communications and block ciphers is discussed , which shows the great importance of the fc - order quasi - bent functions ; some methodology are proposed to construct the k - order quasi - bent functions , including the complete construction by using the characteristic matrices of boolean functions , and the recursive method by two known k - order quasi - bent functions we further extend our investigation to the ring zp , where p is a prime , and the similar results are presented as far as the p - valued quasi - generalized - bent functions are considered
    本文首先综合运用概率论、代数学、数论等基础学科的理论知识,并以频谱理论作为主要研究工具,对一类谱值分布相对均匀的函数? ?广半bent函数、 k阶拟bent函数和p值k阶拟广义bent函数进行了系统、深入的研究,给出了广半bent函数定义,并探讨了广半bent函数的密码学性质;给出了k阶拟bent函数和p值k阶拟广义bent函数的定义及等价判别条件;讨论了k阶拟bent函数和p值k阶拟广义bent函数与部分bent函数和p值广义部分bent函数的关系,探讨了它们的密码学性质;给出了k阶拟bent函数和p值k阶拟广义bent函数的典型构造方法,并将对k阶拟bent函数的密码性质的研究转化到对一类特殊的矩阵的研究上;利用布尔函数的特征矩阵原则上给出了k阶拟bent函数的一种完全构造方法,还给出了从已有的p值k阶拟广义bent函数出发,递归构造变元个数更多的p值k阶拟广义bent函数的方法;初步探讨了k阶拟bent函数在序列密码、分组密码以及通信中的应用;给出了一类布尔函数walsh谱的分解式,并利用这类布尔函数的walsh谱分解式给出了一类近似稳定的布尔函数的构造,特殊情形下为k阶拟bent函数;利用代数数论的知识考察了p值k阶拟广义bent函数的谱特征,并给出了k阶拟广义bent函数与所有仿射函数的符合率特征等等。
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