Title:
コンテンツ配信システム、コンテンツ配信方法、および情報処理装置、並びにプログラム提供媒体
Document Type and Number:
Japanese Patent JP4552294
Kind Code:
B2
Abstract:
A content distribution is performed by a secure container including a content encrypted by a content key and container information set for a content transaction. The container information includes a person identification certificate identifiers list. Usage control status information including the list is generated and stored in a device during a secondary distribution among user devices after a primary distribution of the content. In the distribution among the user devices, identifying an identification certificate in reference to the list and performing a person authentication based on the identification certificate allows each of the user devices to use the transmitted content, when the authentication is affirmative.
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Inventors:
Matsuyama Kaneko
Yoshito Ishibashi
Nimura Ichiro
Kun Masashi
Hideaki Watanabe
Yoshito Ishibashi
Nimura Ichiro
Kun Masashi
Hideaki Watanabe
Application Number:
JP2000264514A
Publication Date:
September 29, 2010
Filing Date:
August 31, 2000
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06F12/14; G06F12/00; G06F21/00; G06F21/10; G06F21/32; G06F21/33; G06F21/34; G06F21/44; G06F21/62; G06Q10/00; G06Q30/02; G06Q30/06; G06Q50/00; G06Q50/10; G06Q50/26; G11B20/00; H04K1/00; H04L9/32; H04L29/06; H04N21/258; H04N21/4627; H04N21/4786; H04N21/4788; H04N21/61
Domestic Patent References:
| JP10512074A | ||||
| JP2000138673A |
Foreign References:
| WO1998050875A1 |
Attorney, Agent or Firm:
Eiji Yamada
Masaaki Miyata
Toshio Sawada
Masaaki Miyata
Toshio Sawada