发明名称 CRYPTOGRAPHIC AUTHENTICATION WITH EPHEMERAL MODULES
摘要 The invention concerns a method enabling a personal computer (1) to be authenticated by a server (2). The method comprises the step, which consists for the user in launching the execution of a log-on procedure software, by introducing personal identifiers (21) providing access to a signature private key (14) for long-term use relative to the duration of the session. The log-on procedure software produces: identification data of the session Id, a public ephemeral module n (9), a public exponent v and at least a pair of ephemeral public numbers G (11) and ephemeral private numbers Q (12) related by a generic equation of the type: GQ<v> (mod n) or GxQ<v> 1 (mod n), an ephemeral certificate (13) linking, by means of said signature private key (14), Id (8) and n (9). The public ephemeral module n (9) is of reduced size relative to the signature private key (14). The method comprises the step which consists for said user (5) to launch the execution of an evidence software, the step which consists for the server (2) in launching the execution of a control software.
申请公布号 WO02073876(A3) 申请公布日期 2002.11.21
申请号 WO2002FR00884 申请日期 2002.03.12
申请人 FRANCE TELECOM;TELEDIFFUSION DE FRANCE;GUILLOU, LOUIS 发明人 GUILLOU, LOUIS
分类号 G06F21/20;G09C1/00;H04L9/32 主分类号 G06F21/20
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