JP4153716B2 - 公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置 - Google Patents

公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置 Download PDF

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Publication number
JP4153716B2
JP4153716B2 JP2002109744A JP2002109744A JP4153716B2 JP 4153716 B2 JP4153716 B2 JP 4153716B2 JP 2002109744 A JP2002109744 A JP 2002109744A JP 2002109744 A JP2002109744 A JP 2002109744A JP 4153716 B2 JP4153716 B2 JP 4153716B2
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Japan
Prior art keywords
key
distribution
receiving terminal
encrypted
content
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Expired - Lifetime
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JP2002109744A
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Japanese (ja)
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JP2002374240A5 (enExample
JP2002374240A (ja
Inventor
薫 横田
誠 館林
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2002109744A priority Critical patent/JP4153716B2/ja
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Publication of JP2002374240A5 publication Critical patent/JP2002374240A5/ja
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JP2002109744A 2001-04-12 2002-04-11 公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置 Expired - Lifetime JP4153716B2 (ja)

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JP2002109744A JP4153716B2 (ja) 2001-04-12 2002-04-11 公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001-113667 2001-04-12
JP2001113667 2001-04-12
JP2002109744A JP4153716B2 (ja) 2001-04-12 2002-04-11 公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置

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JP2002374240A JP2002374240A (ja) 2002-12-26
JP2002374240A5 JP2002374240A5 (enExample) 2005-09-08
JP4153716B2 true JP4153716B2 (ja) 2008-09-24

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JP2002109744A Expired - Lifetime JP4153716B2 (ja) 2001-04-12 2002-04-11 公開鍵暗号方式の鍵の更新方法、受信端末及び鍵管理装置

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004064312A1 (en) 2003-01-07 2004-07-29 Qualcomm Incorporated System, apparatus and method for replacing a cryptographic key
JPWO2004075475A1 (ja) * 2003-02-21 2006-06-01 富士通株式会社 配信システム
JP4599812B2 (ja) * 2003-06-30 2010-12-15 ソニー株式会社 サービス提供システム、サービス提供サーバ、機器認証プログラム、記憶媒体、端末機器、機器認証サーバ、および公開鍵確認情報更新プログラム
US8015393B2 (en) 2004-04-12 2011-09-06 Canon Kabushiki Kaisha Data processing device, encryption communication method, key generation method, and computer program
JP4789432B2 (ja) * 2004-06-29 2011-10-12 キヤノン株式会社 データ処理装置、データ処理装置の制御方法、コンピュータプログラム及び記憶媒体
JP4846537B2 (ja) * 2005-12-21 2011-12-28 シャープ株式会社 コンテンツ配信システム、通信装置、再生装置、および、権利管理装置
JP5175615B2 (ja) * 2007-06-04 2013-04-03 パナソニック株式会社 利用装置、サーバ装置、サービス利用システム、サービス利用方法、サービス利用プログラム及び集積回路
CN102473230A (zh) * 2010-06-04 2012-05-23 松下电器产业株式会社 控制器、控制方法、计算机程序、程序记录介质、记录装置及记录装置的制造方法
JP5633699B2 (ja) 2011-01-26 2014-12-03 富士ゼロックス株式会社 コンテンツ配信システム、携帯通信端末装置、及び閲覧制御プログラム
EP2811685B1 (en) 2012-02-03 2019-03-06 Fujitsu Limited Transmission method and system for terminal-specific information

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