Patent ID: 8082588

Claim:
A method for managing access to content comprising: receiving, in a receiver/decoder unit, encrypted entitlement messages, encrypted content, and at least one system key being usable to access the encrypted entitlement messages, the encrypted content being encrypted by control words, the encrypted entitlement messages including the control words and a necessary right for access to the content, the receiver/decoder unit having a local storage unit and being connected to a security unit, the security unit having a memory separate from the local storage unit and separate from any memory in the receiver/decoder unit; storing the encrypted content and the encrypted entitlement messages in the storage unit; encrypting in the security unit the at least one system key with a predefined local key contained in the security unit; and storing in the storage unit the at least one system key encrypted by the predefined local key, whereby the at least one system key stored in the storage unit may be decrypted to allow decryption of the content even if the at least one system key is no longer stored in the security unit.