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专利名称：ASYMMETRICAL CRYPTOGRAPHIC
COMMUNICATION METHOD ANDPORTABLE OBJECT THEREFOR
发明人：PATARIN, JACQUES申请号：EP97901663.1申请日：19970124公开号：EP0818094B1公开日：20060222
摘要：An asymmetrical cryptographic communication method establishing
correspondence between a first value (x) represented by n elements (x1,....,xn) of a ring(A) and a second value (y) represented by m elements (y1,....,ym) of the ring, where n andm are integers of at least 2. Said correspondence is defined by multivariable publicpolynomials (Pi) of An+m+k →A, having a small total degree, to give equations such asP¿i?(x1,....,xn; y1,....,ym; z1,.....,zk) = 0, where (z1,.....,zk) are optional intermediate variablesand k is an integer; and at least most of the polynomials (Pi) do not have the formTi(y1,....,ym) = Si(x1,....,xn), where Si would be polynomials with a total degree of 2 and Tiwould be polynomials with a total degree of 1. A related portable object is alsodisclosed.
申请人：CP8 TECHNOLOGIES,CP8 TECHNOLOGIES,CP8 TECHNOLOGIES
地址：FR
国籍：FR
代理机构：Renault, Patricia Marie Jacqueline
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