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EP0252849A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method for authenticating external authorization data by a portable object such as a memory card

Assignee: CP8 Technologies SA
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Filing: 1987-07-09
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Granted: —
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Expires: 2007-07-09
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Abstract

Abstract Translated from French Procédé pour authentifier une donnée d'habilitation externe par un objet portatif tel qu'une carte à mémoire. La donnée d'habilitation (C1) entrée dans un appareil (2) est chiffrée avec une information (E) prédéterminée pour donner un message (M) qui est transmis à un objet portatif (1). L'objet (1) déchiffre le message (M) en prenant en compte une donnée d'habilitation de référence (C1) pour retrouver une information (E') qui doit être cohérente avec l'information (E). L'invention s'applique notamment à la reconnaissance du code porteur du titulaire d'une carte de crédit. Method for authenticating external authorization data by a portable object such as a memory card. The enabling data (C1) entered into a device (2) is encrypted with predetermined information (E) to give a message (M) which is transmitted to a portable object (1). The object (1) decrypts the message (M) by taking into account a reference enabling data (C1) to find information (E ') which must be consistent with the information (E). The invention applies in particular to the recognition of the carrier code of the holder of a credit card.

Inventors

  • 👤 Michel Hazard
  • 👤 Michel Ugon

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 23:10
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/36; G06Q20/367; G06Q20/38; G06Q20/40; G06Q20/401; G06Q20/4012; G06Q20/409; G06Q20/4097; G06Q20/40975; G07F7/1016; H; H04; H04L; H04L9/00; H04L9/32; H04L9/3226; H04L9/3234

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US4465901A Cited
EP0028965A1 Cited
EP0096599A1 Cited
FR2536928A1 Cited
EP0114773A2 Cited
WO1985004299A1 Cited

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