Patent ID: 8675872

Claim:
A method to manage access to program content, the method comprising: receiving, by a computer processor, a plurality of portions of encrypted program content; receiving, by the computer processor, at a port communicatively coupled to an access control information distribution system and operable to receive access control information from the access control information distribution system, for one portion of the plurality of portions of encrypted program content, a plurality of decryption keys and a portion identifier associated with the one portion, via a communications network, the plurality of keys includes: one valid decryption key operable to correctly decrypt the associated one portion of encrypted program content, a plurality of invalid decryption keys inoperable to correctly decrypt the associated one portion of encrypted program content, and an authentication code associated with the one valid decryption key; utilizing, by a content access controller computer processor, the authentication code included in the received plurality of decryption keys associated with the one portion, to identify the one valid decryption key from the plurality of received decryption keys; and decrypting, by the content access controller computer processor, the one portion of encrypted program content with the valid decryption key.