Patent ID: 8272007

Claim:
A broadcast receiving apparatus that includes identification information used for identifying the broadcast receiving apparatus and that receives broadcast signals, the broadcast receiving apparatus comprising: a generating unit configured to generate a first encryption key specific to the broadcast receiving apparatus including the identification information; a recording unit configured to record a broadcast stream that is included in a certain channel of the broadcast signals and that includes an individual information stream and a content stream requiring a second encryption key for decryption, the individual information stream periodically including first individual information items that are necessary for the generation of the first encryption key by the generating unit and second individual information items that each include the second encryption key and that can be decrypted with the first encryption key; a searching unit configured to search for the earliest first individual information item in the individual information stream and the earliest second individual information item in the individual information stream from the individual information stream included in the broadcast stream recorded in the recording unit; and an overwriting unit configured to overwrite the second individual information item found by the searching unit at a position that is earlier than the position where the second individual information item is found and that is later than the position where the first individual information item is found in the individual information stream.