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1. (WO2017038492) INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM

Pub. No.:    WO/2017/038492    International Application No.:    PCT/JP2016/074204
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: G11B 20/10
G06F 21/10
G11B 27/00
H04L 9/08
H04N 5/765
H04N 5/91
Applicants: SONY CORPORATION
ソニー株式会社
Inventors: UEDA, Kenjiro
上田 健二朗
OISHI, Tateo
大石 丈於
Title: INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
Abstract:
The present invention realizes, also at a content copy destination, a usage control configuration substantially similar to the content usage control performed on a copy source medium. According to the present invention, a data processing unit, which performs a copy process in which recorded data on a first medium is recorded onto a second medium, records an encrypted content on the first medium onto the second medium without performing decryption. In addition, the data processing unit generates, and records onto the second medium, a converted CPS unit key file obtained by converting a CPS unit key file recorded on the first medium. Furthermore, the data processing unit acquires, from a server, and records onto the second medium, a KCD-unrequiring MKB enabling direct calculation of a media key merely by using a device key and without using KCD (key conversion data) recorded on the first medium.