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EP0100260A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method to establish the origin of at least one bit of information stored in a memory of a first electronical device and transmitted to a second electronical device

Assignee: CP8 Technologies SA
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Filing: 1983-07-07
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Granted: —
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Expires: 2003-07-07
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Abstract

Abstract Translated from French Soit un individu A possédant une carte CA dont la mémoire contient une information IA propre à l'individu A et un individu B possedant une carte CB dont la mémoire contient une information IB propre à l'individu B. Pour que l'individu B qui reçoit l'information 1A soit certain de la provenance de cette information IA, les deux cartes CA et CB calculent chacune un résultat R fonction de l'information IA, d'un jeu secret (S) commun aux deux cartes, d'un nombre aléatoire (EB) fourni par l'individu B et d'un paramètre J qui est lui-même fonction des deux informations (IA, IB) combinées suivant un algorithme prédéterminé symétrique p. L'invention s'applique notamment à la reconnaissance mutuelle de deux individus d'une même population. Either an individual A having a card CA whose memory contains information IA specific to individual A and an individual B having a card CB whose memory contains information IB specific to individual B. So that individual B who receives information 1A be certain of the origin of this information IA, the two cards CA and CB each calculate a result R as a function of the information IA, of a secret game (S) common to the two cards, of a number random (EB) provided by the individual B and of a parameter J which is itself a function of the two pieces of information (IA, IB) combined according to a predetermined symmetric algorithm p. The invention applies in particular to the mutual recognition of two individuals from the same population.

Inventors

  • 👤 Charles José Saada
  • 👤 Jean Henri Mollier

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 02:23
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1016; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/36; G06Q20/367; G06Q20/3674; G06Q20/38; G06Q20/40; G06Q20/409; G06Q20/4097; G06Q20/40975; G07F7/1008; H; H04; H04L; H04L9/00; H04L9/32; H04L9/3234; H04L9/3271; H04L2209/00; H04L2209/56

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3654604A Cited
US4320387A Cited
EP0028965A1 Cited
EP0029894A2 Cited
EP0030381A2 Cited

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