Title:
A server apparatus, playback equipment, and a contents distribution system
Document Type and Number:
Japanese Patent JP5990259
Kind Code:
B2
Abstract:
A server device (100a) includes a first generation unit (102a) generating binding information binding a user with content, a second acquisition unit (103a) acquiring a usage rule, a second generation unit (104a) generating a converted title key from a title key by using the binding information and the usage rule, and an output unit (105a) outputting content encrypted using the title key, the converted title key and the usage rule to the storage medium (600a). A playback device (700a) includes a generation unit (704a) performing the reverse of the conversion on the converted title key of the storage medium (600a) to generate a decrypted title key, by using the binding information received from the server device (100a) and the usage rule of the storage medium (600a), and a decryption unit (705a) decrypting the encrypted content of the storage medium (600a) by using the title key.
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Inventors:
Toshihisa Nakano
Takahiro Yamaguchi
Kensei Minami
Masayuki Kozuka
Takahiro Yamaguchi
Kensei Minami
Masayuki Kozuka
Application Number:
JP2014506032A
Publication Date:
September 07, 2016
Filing Date:
March 15, 2013
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G06F21/10; G06F21/60; G06F21/62
Domestic Patent References:
| JP10283268A | ||||
| JP2006277830A | ||||
| JP200618335A |
Attorney, Agent or Firm:
Patent business corporation Nakajima intellectual property integrated office
Shiro Nakajima
Koji Kawabata
Koichi Kimura
Yukio Tsuchida
Nakajima Anyo
Yoshibayashi Kobayashi
Megumi Shibata
Shiro Nakajima
Koji Kawabata
Koichi Kimura
Yukio Tsuchida
Nakajima Anyo
Yoshibayashi Kobayashi
Megumi Shibata