Patent ID: 8225088

Claim:
An information processing apparatus for controlling use of a content recorded on a disc, comprising: a memory including a data verification section configured to verify whether content-owner identification recorded in a content-owner certificate corresponds to an owner of the content recorded on the disc, the content-owner certificate being recorded on the disc, and verify whether the content-owner certificate and the content-owner identification are included in a certificate revocation list (CRL), compare a content-certificate time stamp stored in a content certificate recorded on the disc and a CRL time stamp stored in the CRL in correspondence with the content-owner certificate and that identifies an invalidation date-and-time information of content-owner certificate included in the CRL, when the content-owner certificate and the content-owner identification are included in the CRL; and a content-use control section configured to prohibit or restrict use of the content when the content-certificate time stamp has date-and-time data later than the CRL time stamp.