Patent ID: 7457414
Filing Date: 2008-11-25
Classification: G06Q,H04N

Abstract:
1. A method of storing program material in a media storage device communicatively coupled to a receiver for subsequent replay, comprising the steps of: (a) accepting a data stream including data packets with program material encrypted according to a first encryption key and access control information which is contained within one or more control word packets that include an encrypted version of the first encryption key in the receiver; (b) decrypting the received access control information in a conditional access module which is releasably communicatively coupled with the receiver to produce the first encryption key; (c) decrypting the program material in the receiver using the first encryption key; (d) re-encrypting the program material according to a second encrypting key; (e) encrypting the second encryption key in the conditional access module according to a third encryption key to produce a fourth encryption key; and (f) providing the re-encrypted program material and the fourth encryption key for storage eternal to the conditional access module.