A contents distribution system, a device, and a program

Title:

A contents distribution system, a device, and a program

Document Type and Number:

Japanese Patent JP6013233

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a content distribution system capable of protecting distributed content even when only the standard function of a browser is available.SOLUTION: A content distribution system for distributing scramble content obtained by scrambling content in response to the distribution request of the content from a user device includes: decryption module generation means for, when receiving the distribution request of the decryption module of the content from the user device, generating a decryption module for allowing the user device to perform processing of descrambling the scramble content stored in the user device; obfuscation means for obfuscating the decryption module; and distribution means for distributing the obfuscated decryption module to the user device.

Inventors:

Akaike Daishi
Toshiki Matsui
Nishikawa Makoto
Hayashi Hayamoto
Toshikuni Kurosawa
Nobuo Saeki

Application Number:

JP2013041261A

Publication Date:

October 25, 2016

Filing Date:

March 01, 2013

Export Citation:

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Assignee:

KDDI CORPORATION
Book Lister Co., Ltd.

International Classes:

G06F21/10; G06F21/60; H04L9/08

Domestic Patent References:

JP2004004157A
JP2008187421A
JP2011181000A
JP2007096448A
JP2009070373A
JP2007219685A
JP8214090A
JP2006259046A
JP2012142781A

Foreign References:

US20030123665

Other References:

森村吉貴,IPマルチキャストを用いた放送型暗号による認証型ライブ映像配信システムの構築と評価,情報処理学会論文誌論文誌ジャーナル,日本,社団法人情報処理学会,2009年 3月15日,Vol.50 No.3,P1022~1031

Attorney, Agent or Firm:

Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Takashi Sakamoto
Koji Maeda

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