The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2014
Filed:
Aug. 04, 2010
Adrien Duprez, Paris, FR;
Paul Gompel, Boulogne-Billancourt, FR;
Philippe Painchault, Colombes, FR;
Thales, Neuilly sur Seine, FR;
Abstract
A method for generating cryptographic half-keys makes it possible to generate n pairs (K, K), 1≦i≦n, of cryptographic half-keys, each of said pairs making it possible to reconstruct an access key Kspecific to a secure apparatus, said method comprising at least the following steps: generating and storing, with the help of a management center distinct from said apparatus, a first series of n half-keys Kon a recording medium; supplying the apparatus with said recording medium so as to generate, with the help of said local key Kand of the n half-keys Kstored on said medium, a second series of n half-keys Kmaking it possible to form said n pairs (K, K). The method applies notably to the creation of several keys for access to a secure apparatus.