Loading patent…
AssigneeSony Corporation
InventorsYoshiyuki Kobayashi, Kouichi Uchimura
Estimating the term…
To determine whether or not a correct continuous reproduction disk has been attached, and perform control in accordance with a determination result in a data reproduction process including a first information recording medium and a second information recording medium. A first root certificate transform value is calculated by applying a first transform function to data constituting a first root certificate recorded in the first information recording medium and a second root certificate transform value is calculated by applying a second transform function to data constituting a second root certificate recorded in the second information recording medium. Transform values based on first and second root certificates are compared. A process under execution is continued when the first and second root certificate transform values match. However, the process under execution is stooped or a warning is output when the first and second root certificate transform values do not match.
An information processing device comprising,
A non-transitory computer-readable medium having embodied thereon content corresponding to a reproduction target of an information processing device, a root certificate corresponding to a public key certificate storing a public key of a content owner of the content, and an application executable by the information processing device, wherein the application is executable by the information processing device even after removal of the non-transitory computer-readable medium from the information processing device, and upon execution of the application the application causes the information processing device to perform a method, the method comprising:
An information processing method performed by an information processing device, the method comprising:
A non-transitory computer-readable storage medium having embodied thereon a program, which when executed by at least one processor of an information processing device causes the information processing device to execute an information processing method, the method comprising:
Dependencies are inferred from the claim text.