Abstract:
A method and apparatus for receiving a broadcast service in a communication system is provided. The method includes receiving a key pair comprising a first key and a second key from a network, generating at least one of encryption keys using the key pair, receiving encrypted broadcast service data broadcasted from the network, and decrypting the encrypted broadcast service data broadcasted using the at least one of encryption keys.
Abstract:
A method for providing a Digital Rights Management (DRM) service in a network is provided. The method includes receiving a request message for device registration, which includes DRM-related identification information, from a user device; and registering registration information of the user device, which is distinguished according to a corresponding user account and according to a corresponding DRM solution, based on the DRM-related identification information.
Abstract:
A method and apparatus for providing a broadcast service in a communication system is provided. The method includes generating a key pair comprising a first key and a second key, generating at least one of forward encryption keys by applying a forward hash chain to the first key, generating at least one of reverse encryption keys by applying a reverse hash chain to the second key, generating at least one of encryption keys using the at least one of forward encryption keys and the at least one of reverse encryption keys, encrypting broadcast service data using the at least one of encryption keys, and broadcasting the encrypted broadcast service data.
Abstract:
A DRM/CAS service device is provided. The device includes a registration service server that authenticates a device and an STP of the device and generates a device-based context according to a registration request and a DRM/CAS service request from the device; a DRM/CAS service server that receives the device-based context and generates DRM/CAS security contexts; and a DRM/CAS SW service server that receives the DRM/CAS security contexts, generates the DRM/CAS software package including the DRM/CAS security contexts and DRM/CAS software, and enables the DRM/CAS software package to be provided for the device. The DRM/CAS service device reduces the amount of processing and simplifies the process by installing and using content and service protection software, that is, DRM/CAS software by using a security context.
Abstract:
A method and system are provided for performing downloadable Digital Rights Management (DRM) for a content service. The method includes receiving, from a service provider, a Content Access Token (CAT) issuance request for specific content, wherein the CAT issuance request includes information about devices mapped to account information of a user that has purchased the specific content; issuing a CAT; and delivering the CAT to the devices mapped to the account information.