CN102342062A - 密钥管理方法和密钥管理装置 - Google Patents

密钥管理方法和密钥管理装置 Download PDF

Info

Publication number
CN102342062A
CN102342062A CN201080010271.5A CN201080010271A CN102342062A CN 102342062 A CN102342062 A CN 102342062A CN 201080010271 A CN201080010271 A CN 201080010271A CN 102342062 A CN102342062 A CN 102342062A
Authority
CN
China
Prior art keywords
mkb
key
recording medium
intermediate key
effective
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.)
Pending
Application number
CN201080010271.5A
Other languages
English (en)
Chinese (zh)
Inventor
和田纮幸
大井田笃
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN102342062A publication Critical patent/CN102342062A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/603—Digital right managament [DRM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CN201080010271.5A 2009-03-18 2010-03-03 密钥管理方法和密钥管理装置 Pending CN102342062A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009066113A JP2010220019A (ja) 2009-03-18 2009-03-18 鍵管理方法および鍵管理装置
JP2009-066113 2009-03-18
PCT/JP2010/001443 WO2010106746A1 (ja) 2009-03-18 2010-03-03 鍵管理方法および鍵管理装置

Publications (1)

Publication Number Publication Date
CN102342062A true CN102342062A (zh) 2012-02-01

Family

ID=42739414

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080010271.5A Pending CN102342062A (zh) 2009-03-18 2010-03-03 密钥管理方法和密钥管理装置

Country Status (4)

Country Link
US (1) US20120002817A1 (enExample)
JP (1) JP2010220019A (enExample)
CN (1) CN102342062A (enExample)
WO (1) WO2010106746A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107193612A (zh) * 2014-06-27 2017-09-22 青岛海信移动通信技术股份有限公司 一种移动终端的版本升级方法及装置
US9811682B2 (en) 2012-02-09 2017-11-07 Microsoft Technology Licensing, Llc Security policy for device data

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9252948B2 (en) * 2010-11-19 2016-02-02 International Business Machines Corporation Broadcast encryption based media key block security class-based signing

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100481596B1 (ko) * 1995-10-09 2005-04-11 마쯔시다덴기산교 가부시키가이샤 컨텐츠 재생 장치 및 컨텐츠 재생 방법
DE60011958T2 (de) * 1999-04-28 2005-08-25 Matsushita Electric Industrial Co., Ltd., Kadoma Optische Platte, optisches Plattenaufzeichnungs- und wiedergabegerät, und Verfahren zur Aufzeichnung und Wiedergabe
JP4009108B2 (ja) * 1999-08-10 2007-11-14 富士通株式会社 メモリカード
US6965992B1 (en) * 2000-02-24 2005-11-15 3Com Corporation Method and system for network security capable of doing stronger encryption with authorized devices
DE60106802T2 (de) * 2000-04-06 2005-03-10 Matsushita Electric Industrial Co., Ltd., Kadoma Urheberrechtsschutzsystem, Verschlüsselungsvorrichtung, Entschlüsselungsvorrichtung und Aufzeichnungsmedium
US7340603B2 (en) * 2002-01-30 2008-03-04 Sony Corporation Efficient revocation of receivers
DE10305730B4 (de) * 2003-02-12 2005-04-07 Deutsche Post Ag Verfahren zum Überprüfen der Gültigkeit von digitalen Freimachungsvermerken
US8055910B2 (en) * 2003-07-07 2011-11-08 Rovi Solutions Corporation Reprogrammable security for controlling piracy and enabling interactive content
JP4314950B2 (ja) * 2003-09-26 2009-08-19 日本ビクター株式会社 暗号化装置及び復号化装置
JP4634751B2 (ja) * 2004-07-08 2011-02-16 株式会社東芝 記憶媒体処理方法、記憶媒体処理装置及びプログラム
US20070110236A1 (en) * 2004-10-29 2007-05-17 Pioneer Corporation Encryption/recording device and method
JP4715233B2 (ja) * 2005-02-25 2011-07-06 ソニー株式会社 情報処理装置、および情報記録媒体製造方法、並びにコンピュータ・プログラム
US8165302B2 (en) * 2005-06-07 2012-04-24 Sony Corporation Key table and authorization table management
IL172207A0 (en) * 2005-11-27 2006-04-10 Nds Ltd Disk protection system
JP4921862B2 (ja) * 2006-06-12 2012-04-25 株式会社東芝 情報記録再生装置及び方法
JP2008022367A (ja) * 2006-07-13 2008-01-31 Toshiba Corp 暗号鍵情報保持方法および暗号鍵情報処理装置
JP4358239B2 (ja) * 2007-01-10 2009-11-04 株式会社東芝 コンテンツ提供システム、追跡システム、コンテンツ提供方法及び不正ユーザ特定方法
US8290157B2 (en) * 2007-02-20 2012-10-16 Sony Corporation Identification of a compromised content player
JP4964714B2 (ja) * 2007-09-05 2012-07-04 株式会社日立製作所 ストレージ装置及びデータの管理方法
JP2009027557A (ja) * 2007-07-20 2009-02-05 Toshiba Corp コンテンツデータ配信端末、及びコンテンツデータ配信システム
EP2079033A1 (en) * 2008-01-04 2009-07-15 Irdeto Access B.V. Method and system for secure peer-to-peer communication
US9137015B2 (en) * 2008-01-04 2015-09-15 Arcsoft, Inc. Protection scheme for AACS keys
JP4620146B2 (ja) * 2008-07-18 2011-01-26 株式会社東芝 情報処理装置及び認証方法
JP5139465B2 (ja) * 2010-03-31 2013-02-06 株式会社東芝 メモリチップ、情報記憶システム、読み出し装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9811682B2 (en) 2012-02-09 2017-11-07 Microsoft Technology Licensing, Llc Security policy for device data
CN107193612A (zh) * 2014-06-27 2017-09-22 青岛海信移动通信技术股份有限公司 一种移动终端的版本升级方法及装置
CN107193612B (zh) * 2014-06-27 2021-03-23 青岛海信移动通信技术股份有限公司 一种移动终端的版本升级方法及装置

Also Published As

Publication number Publication date
WO2010106746A1 (ja) 2010-09-23
US20120002817A1 (en) 2012-01-05
JP2010220019A (ja) 2010-09-30

Similar Documents

Publication Publication Date Title
US6993135B2 (en) Content processing system and content protecting method
CN101103585B (zh) 通过介质密钥块的验证控制对被保护数字内容的访问的系统和方法
US8077871B2 (en) Content processing apparatus and encryption processing method
US7298844B2 (en) Recording/reproducing apparatus, data moving method, and data deletion method
CN102522098B (zh) 处理信息的方法和设备、制造信息记录介质的方法和设备、信息记录介质和计算机程序
JP2007294054A (ja) デジタル画像記録再生装置
US20060136342A1 (en) Content protection method, and information recording and reproduction apparatus using same
US7926115B2 (en) Information recording and reproducing apparatus and method
JP2011109444A (ja) コンテンツの保護方法、コンテンツ再生装置、プログラムおよびプログラム記録媒体
JP2006108754A (ja) コンテンツ管理方法及び記録再生装置及び記録媒体
US7882367B2 (en) Information recording and reproducing apparatus and method
CN102342062A (zh) 密钥管理方法和密钥管理装置
JP5221915B2 (ja) コンテンツ管理方法、そのプログラム、および記録媒体
US7706664B2 (en) Apparatus, method, and program product for recording and reproducing contents
JP2010220019A5 (enExample)
CN100593205C (zh) 信息处理设备和方法、信息记录介质、其制造设备和方法、及计算机程序
JP2005276282A (ja) 情報記録再生装置、コンテンツ管理方法およびコンテンツ管理プログラム
JP5643616B2 (ja) コンテンツ記憶装置およびプログラム
JP5243758B2 (ja) コンテンツ管理方法、そのプログラム、および記録媒体
WO2010143356A1 (ja) 鍵管理方法
KR20090122726A (ko) 콘텐츠 기록 방법 및 장치
JP4589258B2 (ja) コンテンツ蓄積装置
JP4923885B2 (ja) 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム
JP2007293971A (ja) コンテンツ記録再生装置、コンテンツ記録再生方法、コンテンツ記録再生プログラム、コンテンツ記録再生プログラムが記録された情報記録媒体

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120201