Patent · US Active

Device and method for a backup of rights objects

US8782419B2 · kind B2 · utility

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10Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Bert Greevenbosch · Rotterdam, NL
Harald Fuchs · Eisenberg (Pfalz), DE
Stefan Kraegeloh · Erlangen, DE
Mercè Serra Joan · Erlangen, DE

Key dates

Filing date	Aug 13, 2008
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Nov 13, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F2201/83
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A common backup format of a backup rights object according to embodiments of the present invention has the following features: License information that is not critical for cryptographic security of the rights object is kept in “plain text” with a well defined syntax in a first data container, license information that is critical for cryptographic security of the rights object is stored in cryptographically protected form that is specific for the originating device to which the rights object is bound to in a second data container, and the rights object is cryptographically signed by the originating device such that it may not be manipulated. The signature is stored in a third data container.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.