Patent ID: 7142494
Filing Date: 2006-11-28
Classification: G06F,G11B,H04N

Abstract:
1. A recording medium recording apparatus, comprising: a head portion configured to scan a recording medium having at least a lead-in area, a program area, and a lead-out area; an encrypting circuit configured to encrypt content data with key information; a signal processing circuit portion configured to perform a record signal process for output data of the encrypting circuit and supply the resultant processed signal to the head portion; a controlling portion configured to record the encrypted content data to the program area of the recording medium and record same key information including an encrypted content key and a medium key block to the program area, and at least one of the lead-in area and the lead-out; and a key encrypting circuit portion configured to receive further key information and to encrypt the key information with the further key information, the key encrypting circuit portion including,