Patent ID: 7580894
Filing Date: 2009-08-25
Classification: G06F,Y10S

Abstract:
1. A method for encrypting information in a device, wherein the method comprises: providing a single device with at least one unencrypted rights file, wherein the at least one rights file assigns the right of use of at least one secured content item, said providing occurring prior to powering on the device for the first time; powering on the device for the first time; upon powering on the device for the first time, executing a program resident on the device by a processor, such that when executed by the processor the program encrypts said at least one rights file with an encryption key specific to the device; and opening a secured content item among said at least one secured content item in case said opening of said content item is allowed in a rights file among said at least one rights file in the device, said opening of said secured content item being based on information in said rights file, said rights file comprising a precondition rule for presenting the at least one secured content item by executing a presentation software in the device, said precondition rule comprising at least one of a time limit, a number of presentation times and allowed device identities.