Title:
コンテンツ再生装置およびコンテンツ再生プログラム
Document Type and Number:
Japanese Patent JP5180362
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To provide a content reproduction apparatus, a content reproduction program and a content reproduction method that can appropriately protect content even in an environment where a network cannot be connected, without using a password or a token.SOLUTION: The content reproduction apparatus includes: a first public key acquisition section 41 for acquiring a first public key stored in a non-rewritable area 21 of a content storage medium 2; an encrypted unique data acquisition section 42 for acquiring encrypted unique data from a rewritable area 22 of the content storage medium 2; a decoding section 43 for decoding the encrypted unique data with the first public key; a unique data acquisition section 44 for acquiring unique data stored in the non-rewritable area of the content storage medium 2; and a reproduction permission determination section 45 for comparing the decoded unique data with the acquired unique data, and if they do not match, prohibiting the reproduction of content.
Inventors:
Tomohiro Michiyoshi
Takenoshita Koyo
Takenoshita Koyo
Application Number:
JP2011275284A
Publication Date:
April 10, 2013
Filing Date:
December 16, 2011
Export Citation:
Assignee:
Atmark Techno Co., Ltd.
International Classes:
H04L9/08; G06F21/10; G11B20/10
Domestic Patent References:
| JP2003058840A | ||||
| JP2003123401A | ||||
| JP2003508995A | ||||
| JP2004022104A | ||||
| JP2009223766A | ||||
| JP2009272002A |
Attorney, Agent or Firm:
Shingo Sagawa