首页> 外国专利> Mod N X power d exponentiation calculation method for chip card, involves memorizing coefficient of matrix presenting index, and calculating mod N X power d exponentiation using specific formula having parameters such as matrix and index

Mod N X power d exponentiation calculation method for chip card, involves memorizing coefficient of matrix presenting index, and calculating mod N X power d exponentiation using specific formula having parameters such as matrix and index

机译：芯片卡的Mod N X幂d幂计算方法，包括存储矩阵呈现指数的系数，并使用具有矩阵和索引等参数的特定公式计算mod N X幂d幂

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摘要

The method involves determining prerequisite exponent and parameters, and retrieving index of column whose coefficients are zero from a certain small rank in the order of ten. A secret number representing the exponent higher than the index is found. The coefficient of the matrix presenting the index is memorized. The mod N X power d exponentiation of a chip card is calculated using a specific formula having parameters such as matrix and index. The calculated mod N X power d exponentiation is output by an output module (4). An independent claim is also included for a device comprising input modules and a calculation unit.

机译：该方法涉及确定前提指数和参数，以及从某个小等级以十个数量级检索系数为零的列的索引。找到代表高于索引的指数的秘密数字。存储表示索引的矩阵的系数。使用具有诸如矩阵和索引之类的参数的特定公式来计算芯片卡的mod N X功率d幂。计算出的模N X功率d幂由输出模块（4）输出。对于包括输入模块和计算单元的设备也包括独立权利要求。

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公开/公告号FR2952774A1

专利类型
公开/公告日2011-05-20

原文格式PDF
申请/专利权人 BACHKAT MOHAMED;
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申请/专利号FR20090005530
发明设计人 BACHKAT MOHAMED;
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申请日2009-11-18
分类号H04L9/30;G06K19/073;
国家 FR
入库时间 2022-08-21 17:45:45

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