Method for moving rights object and method for managing rights of issuing rights object and system thereof

Abstract

Disclosed is a method for managing rights of issuing a Rights Object (RO), and a method for moving an RO created by a Local Rights Manager (LRM) between Digital Rights Management (DRM) Agents. A Right Issuer (RI) permits an LRM to move an RO created (or issued) by the LRM to move via the RI, and a first DRM Agent moves the RO to a second DRM Agent via the RI.

1 . A method for moving Rights Object (RO), comprising:
 sending, by a First Entity, a Registration Request Message including first information about moving of an RO, to a Second Entity;   receiving, by the First Entity, a Registration Response Message including second information about moving of an RO, from the Second Entity;   importing, by the First Entity, an RO and a DRM content from digital contents received from an external system; and   moving, by the First Entity, the Imported RO to a DRM Agent.   
   
   
       2 . The method of  claim 1 , further comprising:
 receiving, by the First Entity, a Trigger Message for a protocol to be registered to the Second Entity, from the Second Entity.   
   
   
       3 . The method of  claim 1 , wherein the RO comprises an ID of the First Entity. 
   
   
       4 . The method of  claim 1 , wherein the First Entity is a Local Rights Manager (LRM), and the Second Entity is a Rights Issuer (RI). 
   
   
       5 . The method of  claim 2 , wherein the Trigger Message comprises at least one of an RI ID, an RI URL, an LRM ID, and information indicating the kind of an LRM message. 
   
   
       6 . The method of  claim 1  wherein the first information comprises at least one of a ‘RequestToMoveRO’, an RI ID, an LRM ID, a signature, a message sending time, and an LRM Cert. 
   
   
       7 . The method of  claim 6 , wherein the ‘RequestToMoveRO’ is a parameter including request information, by the First Entity, about moving an Imported RO between DRM Agents via the Second Entity. 
   
   
       8 . The method of  claim 1 , wherein the second information comprises at least one of an ‘OkayToMoveRO’, an RI ID, an LRM ID, a signature, a message sending time, and an LRM Cert. 
   
   
       9 . The method of  claim 8 , wherein the ‘OkayToMoveRO’ is a parameter including information indicating that an RO created by the First Entity is permitted to be moveable between DRM Agents via the Second Entity. 
   
   
       10 . A method for managing rights of issuing Rights Object (RO), comprising:
 receiving, by a Second Entity, a Request Message about moving of an RO created by a First Entity, from the First Entity;   checking, by the Second Entity, whether first information about moving of an RO has been included in the Request Message; and   when the Second Entity permits moving of an RO, sending, by the Second Entity, a Response Message including second information about moving of an RO, to the First Entity.   
   
   
       11 . The method of  claim 10 , wherein the First Entity is a Local Rights Manager (LRM), and the Second Entity is a Rights Issuer (RI). 
   
   
       12 . The method of  claim 10 , wherein the first information comprises at least one of an LRM ID, a ‘RequestToMoveRO’, an RI ID, a signature, a message sending time, and an LRM Cert. 
   
   
       13 . The method of  claim 12 , further comprising:
 checking, by the Second Entity, whether a ‘RequestToMoveRO’ parameter has been included in the Request Message; and   storing, by the Second Entity, an ID of the First Entity.   
   
   
       14 . The method of  claim 12 , wherein the ‘RequestToMoveRO’ is a parameter including request information, by the First Entity, about moving an Imported RO between DRM Agents via the Second Entity. 
   
   
       15 . The method of  claim 10 , wherein the second information comprises at least one of an ‘OkayToMoveRO’, an RI ID, an LRM ID, a signature, a message sending time, and an LRM Cert. 
   
   
       16 . The method of  claim 15 , wherein the ‘OkayToMoveRO’ is a parameter including information indicating that an RO created by the First Entity is permitted to be moveable between DRM Agents via the Second Entity. 
   
   
       17 . The method of  claim 16 , wherein the RO created by the First Entity comprises an ID of the First Entity. 
   
   
       18 . The method of  claim 13 , further comprising:
 receiving, by the Second Entity, a Request Message about moving of an RO to a second DRM Agent, from a first DRM Agent;   extracting, by the Second Entity, an ID of the First Entity included in the Request Message;   checking, by the Second Entity, whether the stored ID of the First Entity is consistent with the extracted ID of the First Entity;   when the two IDs of the First Entity are consistent to each other, sending, by the Second Entity, the Response Message to the first DRM Agent; and   moving, by the Second Entity, the RO to the second DRM Agent.   
   
   
       19 . A method for moving an imported Rights Object (RO), comprising:
 receiving, by a first DRM Agent, an RO from a Local Rights Manager (LRM), wherein the RO is imported from contents which the LRM has been received by from an external system;   sending, by the first DRM Agent, an RO Moving Request Message, to an Rights Issuer (RI) so as to move the RO to the second DRM Agent; and   receiving, by the first DRM Agent, a Response Message about the RO Moving Request Message, from the RI.   
   
   
       20 . The method of  claim 19 , wherein the Request Message about moving an RO comprises at least one of an ID of the second DRM Agent, an RI ID, a message sending time, and an RO signed by the LRM, and
 wherein the Request Message about moving an RO further comprises State Information when the RO is Stateful.