Patent ID: 8769620
Filing Date: 2014-07-01
Classification: H04L

Abstract:
1. A method for using subscription service content, comprising: receiving by a content protection system, a registration request transmitted from a user terminal for using subscription service content, wherein the registration request carries an identifier (ID) of the user terminal, and the user terminal is one of: a permanent terminal or a temporary terminal, and wherein the subscription service content is provided by a content distribution system apart from the content protection system; determining by the content protection system, whether a number of registered user terminals using the subscription service content registered by the user is greater than a maximum number of user terminals permitted to use the subscription service content according to the ID of the user terminal, wherein the maximum number of the user terminals permitted to use the subscription service content is provided by the user to a content protection system; activating the user terminal by the content protection system, such that the user terminal is enabled to receive the subscription service content from the content distribution system, according to the ID of the user terminal, if the number of the registered user terminals using the subscription service content registered by the user is not greater than the maximum number of the user terminals permitted to use the subscription service content; and delivering, by the content protection system, based on a determination that the number of the registered user terminals using the subscription service content registered by the user is not greater than the maximum number of the user terminals permitted to use the subscription service content, a key for decryption of the subscription service content encrypted by the content protection system to the user terminal; requesting, by the user terminal, after receiving the key, the subscription service content from the content distribution system; delivering, by the content distribution system, the subscription service content encrypted by the content protection system to the user terminal; and decrypting, by the user terminal, the service content provided by the content distribution system using the key.