Système de filigrane électronique, système de distribution d'information électronique, et appareil d'archivage d'images

System für elektronische Wasserzeichen, elektronisches Informationsverteilungssystem und Gerät zur Abspeicherung von Bildern

Electronic watermark system, electronic information distribution system, and image filing apparatus

Abstract

Disclosed is an electronic watermark method, used for a network, comprising a plurality of entities, wherein provided weparately are an entity for embedding an electronic watermark in encrypted data that are exchanged by said plurality of entities, and an entity for performing an encryption process and a corresponding decryption process.

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Patent Citations (3)

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    EP-0651554-A1May 03, 1995Eastman Kodak CompanyMethod and apparatus for the addition and removal of digital watermarks in a hierarchical image storage and retrieval system
    EP-0665486-A2August 02, 1995AT&T Corp.Verfahren zur Sicherheit elektronischer Veröffentlichungen mit kryptographischen Protokollen
    EP-0864959-A2September 16, 1998Mitsubishi CorporationSystème de gestion de données

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