首页> 外国专利> CRYPTOGRAPHIC PROCESSING APPARATUS, ALGORITHM CONSTRUCTING METHOD, PROCESSING METHOD, AND COMPUTER PROGRAM APPLYING AN EXTENDED FEISTEL STRUCTURE

CRYPTOGRAPHIC PROCESSING APPARATUS, ALGORITHM CONSTRUCTING METHOD, PROCESSING METHOD, AND COMPUTER PROGRAM APPLYING AN EXTENDED FEISTEL STRUCTURE

机译:应用扩展Festrel结构的密码处理设备,算法构造方法,处理方法和计算机程序

摘要

TO REALIZE AN EXTENDED-FEISTEL-TYPE COMMON-KEY BLOCK-CIPHER PROCESS CONFIGURATION FOR REALIZING A DIFFUSION-MATRIX SWITCHING MECHANISM (DSM). IN A CRYPTOGRAPHIC PROCESS CONFIGURATION IN WHICH AN EXTENDED FEISTEL STRUCTURE HAVING A NUMBER OF DATA LINES: D THAT IS SET TO AN INTEGER SATISFYING D ≧ 2 IS APPLIED, A PLURALITY OF MULTIPLE DIFFERENT MATRICES ARE SELECTIVELY APPLIED TO LINEAR TRANSFORMATION PROCESSES PERFORMED IN F-FUNCTION SECTIONS. A PLURALITY OF DIFFERENT MATRICES SATISFYING A CONDITION IN WHICH A MINIMUM NUMBER OF BRANCHES FOR ALL OF THE DATA LINES IS EQUAL TO OR MORE THAN A PREDETERMINED VALUE ARE SELECTED AS THE MATRICES, EACH OF THE MINIMUM NUMBERS OF BRANCHES CORRESPONDING TO THE DATA LINES BEING BASED ON LINEAR TRANSFORMATION MATRICES INCLUDED IN F-FUNCTIONS THAT ARE INPUT TO A CORRESPONDING DATA LINE IN THE EXTENDED FEISTEL STRUCTURE. FIGURE 5
机译:实现用于实现扩散矩阵切换机制(DSM)的扩展的费斯托式公钥块密码过程配置。在扩展的Festrel结构具有许多数据线的加密过程配置中:应用D设置为满足D≥2的整数,对多个不同的矩阵选择性地执行了多种选择部分。选择满足条件的多个矩阵,其中所有数据行的最小分支数等于或大于预定值作为矩阵,每个最小分支数对应于一个矩阵关于F函数中包含的线性变换矩阵,这些函数被输入到扩展的Feistel结构中的相应数据线中。图5

著录项

  • 公开/公告号MY151698A

    专利类型

  • 公开/公告日2014-06-30

    原文格式PDF

  • 申请/专利权人 SONY CORPORATION;

    申请/专利号MY2009PI00165

  • 发明设计人 SHIRAI TAIZO;SHIBUTANI KYOJI;

    申请日2007-07-17

  • 分类号H04K1;H04L9;

  • 国家 MY

  • 入库时间 2022-08-21 15:55:58

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