DIGITAL RIGHTS MANAGEMENT Russian patent published in 2009 - IPC H04L9/32 G06F12/14 G06F21/22 

FIELD: physics, computation technology.

SUBSTANCE: invention concerns method and device of digital rights management. When authorisation on server is not accessible, operations with minimised risk are allowed by implementation of internal authorisation scheme. Authorisation method for operation to be performed on digital element involves definition of first operation group members including first predetermined group of operations on digital element, and second operation group including second predetermined group of operations on digital elements; comparison of predetermined operation to be performed on digital element to operations included in each indicated operation group; external authorisation with access to authorising server if operation belongs to first operation group; internal authorisation by device if operation belongs to second operation group; and authorisation of operation to be performed on digital element if one of listed authorisations brings positive result.

EFFECT: enhanced security level of operations with digital content.

13 cl, 5 dwg