Patent ID: 8411861

Claim:
An article comprising a non-transitory medium storing instructions that enable a processor-based system to perform operations comprising: processing, using a processor coupled to a High-bandwidth Digital Content Protection (HDCP) compliant source device, a System Renewability Message (SRM), the SRM including first and second generation SRM portions that respectively comprise first and second lists of unique privilege-revoked identifiers for receiver devices; storing, in a memory coupled to the processor, the first and second SRM portions based on whether the source device is a first generation HDCP device, wherein first generation HDCP devices have sufficient memory capacity to store the first SRM portion but insufficient memory capacity to store both the first and second SRM portions; processing an additional SRM that includes (a) additional first and second generation SRM portions that respectively comprise additional first and second lists of unique privilege-revoked identifiers for receiver devices and (b) a third generation SRM portion that comprises another list of unique privilege-revoked identifiers; and using the memory to store (c) the additional first and second SRM portions and not the third SRM portion or (d) the additional first and second SRM portions and the third SRM portion based on whether the source device is a third generation HDCP device.