METHOD FOR MANAGING DIGITAL RIGHTS ON WIRED/WIRELESS ENVIRONMENT USING TRUSTED RI AUTHORITIES PARAMETERS

摘要

A method for managing digital rights in a wired/wireless environment by using a trusted authority parameter is provided to process an error in both ends of a device and an RI(Right Issuer) when the error occurring in processing a trusted RI authority parameter during a registration stage of a DRM(Digital Rights Management) solution. A device wanting registration transmits a first message including basic information of the device to an RI(S100). The RI receiving the first message transmits a second message including the basic information of the RI to the device(S102). The device transmits a third message for requesting the registration to the RI(S104). The RI registers the device and transmits a fourth message including registration result information to the device(S106). The third message includes a trusted RI authority parameter, which is list information of upper objects an RI certificate trusted by the device, and the fourth message includes state information for representing whether or not one of the trusted RI authority parameter is included in a certificate chain of the RI.