System for securing encryption renewal system and for registration and remote activation of encryption device

摘要

An encryption renewal system for generating entitlement control messages, the system being secured by physical separation of components. The encryption renewal system has a first computing platform for performing non-secure tasks associated with one or more control messages that transmit one or more keys to a subscriber; and a second computing platform physically separate from the first computing platform containing one or more application specific integrated circuit chip for generating the one or more control messages. In addition, a method by the encryption renewal system is used to register an off-line encryption device in order to begin encrypting clear content. The method includes generating data for registering the off-line encryption device; encrypting the data with one or more cryptographic keys to form encrypted data; forwarding the encrypted data to the off-line encryption device; and retrieving the data from the encrypted data, wherein the off-line encryption device begins to encrypt clear content only after the data is retrieved.