METHOD FOR LINKING USER WITH DIGITAL LICENSE OF DIGITAL CONTENTS AND LINKING USER WITH MULTIPLE COMPUTING DEVICES ON DRM SYSTEM

PURPOSE: A method for linking a user with a digital license of digital contents and linking the user with multiple computing devices on a DRM(Digital Right Management) system is provided to allow accessing of the encrypted digital contents on the computing device with only the parameters defined by...

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Bibliographische Detailangaben
Hauptverfasser:	DEMELLO MARCO A, MANFERDELLI JOHN L, KRISHNASWAMY VINAY, SERBUS BRADLEY, NARIN ATTILA, BOURNE STEVE, MALAVIARACHCHI RUSHMI U
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADVERTISING CALCULATING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY COMPUTING COUNTING CRYPTOGRAPHY DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	PURPOSE: A method for linking a user with a digital license of digital contents and linking the user with multiple computing devices on a DRM(Digital Right Management) system is provided to allow accessing of the encrypted digital contents on the computing device with only the parameters defined by a license right of a digital content user. CONSTITUTION: As other user by proxy for the user presents the PU-USER of the user with other proper information or presenting a user ID, the license is requested(603). Based on the user ID, it is judged that a record having the PU-USER is present in a user machine database(605). If the PU-USER is present, the PU-USER of the record is obtained(607). The PU-USER(KD) is obtained by using the PU-USER to encrypt a content key(KD) of the contents matched with the PU-USER and the licensed is generated by using the PU-USER(KD)(609). In case that the PU-USER is not present, the server generates/stores a new public/private key pair of the user in the user machine database(611).