专利名称：DEVICE AND METHOD FOR CALCULATING
THE RESULT OF A MODULAREXPONENTIATION
发明人：SEIFERT, JEAN-PIERRE,VELTEN, JOACHIM申请号：EP02797920.2申请日：20020822公开号：EP1423786A2公开日：20040602
摘要：A device for calculating a result of a modular exponentiation, where n is amodule, where d is a power, and where c is a size, which is to subject of the modularexponentiation, with the following features:a device (100) for calculating a first auxiliaryvariable dp, whereby dp is defined as follows: dp = dmod (p – 1),where p is a first primenumber;a device (102) for calculating a second auxiliary variable dq, dq being is defined asfollows: dq = d mod (q – 1),where q is a second prime number,a product of p and q isequal to the modulus n;a device (104) for generating a random number (irnd);a device(106) for generating a third auxiliary variable dp '', whereby dp'' is defined as follows: dp ′= irnd × (p – 1) + dp;a device (108) for generating a fourth auxiliary variable dq '', dqbeing'' is defined as follows dq ''= irnd..
申请人：INFINEON TECHNOLOGIES AG
地址：St.-Martin-Strasse 53 81669 München DE
国籍：DE
代理机构：Zimmermann, Tankred Klaus
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