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:
Sep. 13, 1994
Filed:
Sep. 15, 1993
Applicant:
Inventors:
David Naccache, Maisons-Alfort, FR;
David M'Raihi, Paris, FR;
Assignee:
Gemplus Developpement, Gemenos, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
380 30 ; 380 28 ; 380 23 ;
Abstract
The process concerns a system, comprising communication devices A1, A2, . . . A.alpha. connected to a central verification device B by the means of communication interfaces wherein each device Ai, having data processing means, communication means, memory means and random or pseudo-random generation means, transmits to the device B, having data processing means, communication means and memory means, a set of DSS digital signatures. Once all the signatures has been received by device B, device B verifies them simultaneously by performing few calculations for verifying a great same number of signatures sequentially.