CRYPTOGRAPHIC FUNCTION
申请(专利)号： FR1850331
专利号： FR3076925A1 主分类号： G06F21/60 申请权利人： PROTON WORLD
INTERNATIONAL N.V. 公开国代码： FR 优先权国家： FR
申请日： 2018-01-16 公开公告日： 2019-07-19
分类号： G06F21/60;
H04L9
发明设计人： JOAN DAEMEN;
MICHAEL PEETERS 申请国代码： FR
优先权： 20180116 FR
1850331
摘 要 附 图：
摘 要：
The present description relates to a cryptographic function applied to a first word (a0), a second word (a1), a third word (a2) and a fourth word (a3)
comprising: a multiplication of the third word (a2) by the fourth word (a3); an addition of the result of the multiplication (31); subtracting the result of the addition to the second word to the result of adding (32) to the first word; an addition of the result of the subtraction (34); a
combination with a constant (Ci), of the result of the addition of the third word to the result of the subtraction; and a
doubling of the result of said combination and a circular shift (41, 42, 43) of the respective result codes of the addition (36) of the fourth word to the result of the subtraction, the addition (33) of the second word to the result of the
multiplication, and the addition of the first word to the result of the multiplication. 主权项：
1. Fonction cryptographique exécutée par un circuit électronique, appliquée à un
premier mot (aO) ,
权 利 要 求 说 明 书
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CRYPTOGRAPHIC FUNCTION
