JPH01248891A - 暗号化鍵配送方式 - Google Patents

暗号化鍵配送方式

Info

Publication number
JPH01248891A
JPH01248891A JP63077296A JP7729688A JPH01248891A JP H01248891 A JPH01248891 A JP H01248891A JP 63077296 A JP63077296 A JP 63077296A JP 7729688 A JP7729688 A JP 7729688A JP H01248891 A JPH01248891 A JP H01248891A
Authority
JP
Japan
Prior art keywords
key
work
individual information
receiver
common
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63077296A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0468836B2 (enrdf_load_stackoverflow
Inventor
Akito Umemoto
梅本　明人
Hiroshi Watanabe
浩 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KONDEISHIYONARU AKUSESU TECHNOL KENKYUSHO KK
NEC Corp
Original Assignee
KONDEISHIYONARU AKUSESU TECHNOL KENKYUSHO KK
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KONDEISHIYONARU AKUSESU TECHNOL KENKYUSHO KK, NEC Corp filed Critical KONDEISHIYONARU AKUSESU TECHNOL KENKYUSHO KK
Priority to JP63077296A priority Critical patent/JPH01248891A/ja
Publication of JPH01248891A publication Critical patent/JPH01248891A/ja
Publication of JPH0468836B2 publication Critical patent/JPH0468836B2/ja
Granted legal-status Critical Current

Links

JP63077296A 1988-03-30 1988-03-30 暗号化鍵配送方式 Granted JPH01248891A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63077296A JPH01248891A (ja) 1988-03-30 1988-03-30 暗号化鍵配送方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63077296A JPH01248891A (ja) 1988-03-30 1988-03-30 暗号化鍵配送方式

Publications (2)

Publication Number Publication Date
JPH01248891A true JPH01248891A (ja) 1989-10-04
JPH0468836B2 JPH0468836B2 (enrdf_load_stackoverflow) 1992-11-04

Family

ID=13629926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63077296A Granted JPH01248891A (ja) 1988-03-30 1988-03-30 暗号化鍵配送方式

Country Status (1)

Country Link
JP (1) JPH01248891A (enrdf_load_stackoverflow)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH099241A (ja) * 1995-06-15 1997-01-10 Sony Corp スクランブル放送システム、およびスクランブル方法、並びにスクランブル装置、およびデスクランブル装置
JPH11243536A (ja) * 1997-12-26 1999-09-07 Toshiba Corp 放送受信装置および契約管理装置
JP2003115832A (ja) * 2001-10-03 2003-04-18 Nippon Hoso Kyokai <Nhk> コンテンツ送信装置、コンテンツ受信装置およびコンテンツ送信プログラム、コンテンツ受信プログラム
JP2003152698A (ja) * 2001-11-15 2003-05-23 Nippon Hoso Kyokai <Nhk> コンテンツ利用制御送信方法、コンテンツ利用制御受信方法およびコンテンツ利用制御送信装置、コンテンツ利用制御受信装置ならびにコンテンツ利用制御送信プログラム、コンテンツ利用制御受信プログラム
USRE38529E1 (en) 1994-06-24 2004-06-08 Sony Corporation Scramble/descramble method and apparatus for data broadcasting
US7051212B2 (en) 1995-02-13 2006-05-23 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7062500B1 (en) 1997-02-25 2006-06-13 Intertrust Technologies Corp. Techniques for defining, using and manipulating rights management data structures
US7069451B1 (en) 1995-02-13 2006-06-27 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7092914B1 (en) 1997-11-06 2006-08-15 Intertrust Technologies Corporation Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
JP2006217645A (ja) * 2006-03-13 2006-08-17 Nippon Hoso Kyokai <Nhk> コンテンツ利用制御送信方法、コンテンツ利用制御送信装置およびコンテンツ利用制御送信プログラム
US7095854B1 (en) 1995-02-13 2006-08-22 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7120802B2 (en) 1996-08-12 2006-10-10 Intertrust Technologies Corp. Systems and methods for using cryptography to protect secure computing environments
US7133846B1 (en) 1995-02-13 2006-11-07 Intertrust Technologies Corp. Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management
US7143290B1 (en) 1995-02-13 2006-11-28 Intertrust Technologies Corporation Trusted and secure techniques, systems and methods for item delivery and execution
US7165174B1 (en) 1995-02-13 2007-01-16 Intertrust Technologies Corp. Trusted infrastructure support systems, methods and techniques for secure electronic commerce transaction and rights management
JP2008035534A (ja) * 2007-09-03 2008-02-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
US7401232B2 (en) 2002-03-20 2008-07-15 Matsushita Electric Industrial Co., Ltd. Content playback apparatus method and program and key management apparatus and system
JP2009153122A (ja) * 2008-12-08 2009-07-09 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010178366A (ja) * 2010-03-26 2010-08-12 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010233223A (ja) * 2010-03-26 2010-10-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010233222A (ja) * 2010-03-26 2010-10-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2011041293A (ja) * 2010-09-06 2011-02-24 Fujitsu Ltd 受信機および通信方法
JP2012054979A (ja) * 2011-10-12 2012-03-15 Fujitsu Ltd 送信機及び送信機により実行される方法

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE38529E1 (en) 1994-06-24 2004-06-08 Sony Corporation Scramble/descramble method and apparatus for data broadcasting
US7120800B2 (en) 1995-02-13 2006-10-10 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7133846B1 (en) 1995-02-13 2006-11-07 Intertrust Technologies Corp. Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management
US7392395B2 (en) 1995-02-13 2008-06-24 Intertrust Technologies Corp. Trusted and secure techniques, systems and methods for item delivery and execution
US7143290B1 (en) 1995-02-13 2006-11-28 Intertrust Technologies Corporation Trusted and secure techniques, systems and methods for item delivery and execution
US7051212B2 (en) 1995-02-13 2006-05-23 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7281133B2 (en) 1995-02-13 2007-10-09 Intertrust Technologies Corp. Trusted and secure techniques, systems and methods for item delivery and execution
US7069451B1 (en) 1995-02-13 2006-06-27 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7165174B1 (en) 1995-02-13 2007-01-16 Intertrust Technologies Corp. Trusted infrastructure support systems, methods and techniques for secure electronic commerce transaction and rights management
US7415617B2 (en) 1995-02-13 2008-08-19 Intertrust Technologies Corp. Trusted infrastructure support systems, methods and techniques for secure electronic commerce, electronic transactions, commerce process control and automation, distributed computing, and rights management
US7095854B1 (en) 1995-02-13 2006-08-22 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7100199B2 (en) 1995-02-13 2006-08-29 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
JPH099241A (ja) * 1995-06-15 1997-01-10 Sony Corp スクランブル放送システム、およびスクランブル方法、並びにスクランブル装置、およびデスクランブル装置
US7120802B2 (en) 1996-08-12 2006-10-10 Intertrust Technologies Corp. Systems and methods for using cryptography to protect secure computing environments
US7062500B1 (en) 1997-02-25 2006-06-13 Intertrust Technologies Corp. Techniques for defining, using and manipulating rights management data structures
US7110983B2 (en) 1997-11-06 2006-09-19 Intertrust Technologies Corporation Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
US7143066B2 (en) 1997-11-06 2006-11-28 Intertrust Technologies Corp. Systems and methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
US7092914B1 (en) 1997-11-06 2006-08-15 Intertrust Technologies Corporation Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
JPH11243536A (ja) * 1997-12-26 1999-09-07 Toshiba Corp 放送受信装置および契約管理装置
JP2003115832A (ja) * 2001-10-03 2003-04-18 Nippon Hoso Kyokai <Nhk> コンテンツ送信装置、コンテンツ受信装置およびコンテンツ送信プログラム、コンテンツ受信プログラム
JP2003152698A (ja) * 2001-11-15 2003-05-23 Nippon Hoso Kyokai <Nhk> コンテンツ利用制御送信方法、コンテンツ利用制御受信方法およびコンテンツ利用制御送信装置、コンテンツ利用制御受信装置ならびにコンテンツ利用制御送信プログラム、コンテンツ利用制御受信プログラム
US7401232B2 (en) 2002-03-20 2008-07-15 Matsushita Electric Industrial Co., Ltd. Content playback apparatus method and program and key management apparatus and system
JP2006217645A (ja) * 2006-03-13 2006-08-17 Nippon Hoso Kyokai <Nhk> コンテンツ利用制御送信方法、コンテンツ利用制御送信装置およびコンテンツ利用制御送信プログラム
JP2008035534A (ja) * 2007-09-03 2008-02-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2009153122A (ja) * 2008-12-08 2009-07-09 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010178366A (ja) * 2010-03-26 2010-08-12 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010233223A (ja) * 2010-03-26 2010-10-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2010233222A (ja) * 2010-03-26 2010-10-14 Fujitsu Ltd 地上デジタル放送システムおよび地上デジタル放送権利保護装置
JP2011041293A (ja) * 2010-09-06 2011-02-24 Fujitsu Ltd 受信機および通信方法
JP2012054979A (ja) * 2011-10-12 2012-03-15 Fujitsu Ltd 送信機及び送信機により実行される方法

Also Published As

Publication number Publication date
JPH0468836B2 (enrdf_load_stackoverflow) 1992-11-04

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