H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/00 (2006.01)
Patent
CA 2722074
The invention relates to a device for managing digital documents, including: a memory (3) for storing a digital document and a time stamp that includes first signatures established according to a first method and a time value; a signature generator (5) for establishing second signatures according to a second method; a time-stamp device; a signature verifier (9) for verifying that a document and a time stamp match; and a controller (11) responsible for ensuring that the signature generator (5) performs the necessary operation on the document, that the signature verifier (9) performs the necessary operation on the document and the corresponding time stamp and, in the event of a match, that the time-stamp device (7) performs the necessary operation on the second signatures with the time value.
Dispositif pour gérer des documents numériques comprenant une mémoire (3) pour stocker un document numérique et une empreinte datée comprenant de premières signatures établies selon une première méthode et une valeur de temporalité, un générateur de signatures (5) pour établir de secondes signatures selon une seconde méthode, un horodateur, un vérificateur de signatures (9) pour vérifier la conformité d'un document et d'une empreinte datée, et un superviseur (11) pour faire opérer le générateur de signatures (5) sur le document, faire opérer le vérificateur de signatures (9) sur le document et son empreinte datée, et, en cas de conformité, faire opérer l'horodateur (7) sur les secondes signatures avec la valeur de temporalité.
Robic
Universite Paris Diderot-Paris 7
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