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EP0284133A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method for simultaneously reading from a distance and verifying information present in a memory of an electronic data carrier

Assignee: Telecommunications Radioelectriques et Telephoniques SA TRT
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Filing: 1988-03-08
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Granted: —
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Expires: 2008-03-08
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Abstract

Abstract Translated from French Procédé pour, simultanément, lire et certifier, à partir d'un appareil de traitement, une information présente à une adresse dans une mémoire d'un support électronique notamment amovible et portatif tel qu'une carte à mémoire. Method for simultaneously reading and certifying, from a processing device, information present at an address in a memory of an electronic medium, in particular removable and portable, such as a memory card. Le procédé utilise un nombre aléatoire, généré dans l'appareil de traitement, comme clé de chiffrement de l'adresse et de l'information lue. The method uses a random number, generated in the processing device, as an encryption key for the address and the information read. Ainsi l'information est certifiée si l'adresse envoyée et l'adresse reçue sont identiques. Thus the information is certified if the address sent and the address received are identical. Préférentiellement l'algorithme de chiffrement est le DES. Preferably, the encryption algorithm is DES.

Inventors

  • 👤 Willem Isphording

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 21:03
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/409; G06Q20/4097; G06Q20/40975; G07F7/1016; H; H04; H04L; H04L9/00; H04L9/32; H04L9/3271

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