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CN1292185A - 用于向所选成员传达私人消息的方法和设备 - Google Patents

用于向所选成员传达私人消息的方法和设备 Download PDF

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Publication number
CN1292185A
CN1292185A CN99803467A CN99803467A CN1292185A CN 1292185 A CN1292185 A CN 1292185A CN 99803467 A CN99803467 A CN 99803467A CN 99803467 A CN99803467 A CN 99803467A CN 1292185 A CN1292185 A CN 1292185A
Authority
CN
China
Prior art keywords
message
private
security
key
keys
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
CN99803467A
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English (en)
Chinese (zh)
Inventor
特伦斯·E·萨姆纳
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN1292185A publication Critical patent/CN1292185A/zh
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • 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
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0827—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving distinctive intermediate devices or communication paths
    • 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
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • 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
    • H04N21/26606—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 entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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 program guide from data received from the Internet and a Head-end, 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • 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
    • H04L2209/601—Broadcast encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CN99803467A 1998-01-19 1999-01-15 用于向所选成员传达私人消息的方法和设备 Pending CN1292185A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7177698P 1998-01-19 1998-01-19
US60/071,776 1998-01-19

Publications (1)

Publication Number Publication Date
CN1292185A true CN1292185A (zh) 2001-04-18

Family

ID=22103516

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99803467A Pending CN1292185A (zh) 1998-01-19 1999-01-15 用于向所选成员传达私人消息的方法和设备

Country Status (8)

Country Link
EP (1) EP1050132A4 (fr)
JP (1) JP2002510164A (fr)
CN (1) CN1292185A (fr)
AU (1) AU750042B2 (fr)
BR (1) BR9907094A (fr)
CA (1) CA2318452A1 (fr)
NO (1) NO20003651L (fr)
WO (1) WO1999037052A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8218769B2 (en) 2006-02-28 2012-07-10 Hitachi, Ltd. Encrypted communication system, communication status management server, encrypted communication method, and communication status management method
CN110419196A (zh) * 2017-03-17 2019-11-05 牛津大学创新有限公司 安全数据交换
CN117240620A (zh) * 2023-11-13 2023-12-15 杭州金智塔科技有限公司 隐私集合求并集系统及方法
CN117473539A (zh) * 2023-12-28 2024-01-30 深圳市乐凡信息科技有限公司 数据加密方法、数据解密方法、终端设备及可读存储介质

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028104A2 (fr) * 2000-09-29 2002-04-04 Nagravision S.A. Methode d'encryption d'un ensemble de donnees formatees
GB2380369B (en) * 2001-09-27 2004-03-24 Marconi Comm Ltd A communications network encryption system
WO2006096035A1 (fr) * 2005-03-10 2006-09-14 Electronics And Telecommunications Research Institute Dispositif de chiffrement et de dechiffrement dans un systeme internet portable sans fil et procede correspondant
KR101308023B1 (ko) 2011-10-27 2013-09-26 국방과학연구소 수신자 프라이버시를 보호하는 브로드캐스트 암호화 방법
JP5875441B2 (ja) 2012-03-29 2016-03-02 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ データを暗号化する装置及び方法
CN112152911A (zh) 2015-02-16 2020-12-29 钉钉控股（开曼）有限公司 通讯方法及移动设备
CN106034068A (zh) 2015-03-20 2016-10-19 阿里巴巴集团控股有限公司 群聊中进行私聊的方法、装置、客户端、服务器及系统
CN105610695B (zh) 2015-12-21 2021-01-12 阿里巴巴集团控股有限公司 对象分配方法及装置
CN105681056B (zh) 2016-01-13 2019-03-19 阿里巴巴集团控股有限公司 对象分配方法及装置
CN105812237B (zh) 2016-03-07 2020-12-04 钉钉控股（开曼）有限公司 快速添加提醒对象的方法及装置
CN107306286B (zh) 2016-04-21 2020-12-04 钉钉控股（开曼）有限公司 离线考勤的处理方法及装置
CN107305459A (zh) 2016-04-25 2017-10-31 阿里巴巴集团控股有限公司 语音和多媒体消息的发送方法及装置
CN107368995A (zh) 2016-05-13 2017-11-21 阿里巴巴集团控股有限公司 任务处理方法及装置
CN107800609B (zh) * 2016-09-05 2021-06-01 阿里巴巴集团控股有限公司 通讯方法及装置
CN107846345A (zh) 2016-09-18 2018-03-27 阿里巴巴集团控股有限公司 通讯方法及装置
GB2596072A (en) * 2020-06-15 2021-12-22 Nchain Holdings Ltd Generating secret shares
GB2600684A (en) 2020-10-28 2022-05-11 Nchain Holdings Ltd Identifying denial-of-service attacks
GB2603495A (en) 2021-02-05 2022-08-10 Nchain Holdings Ltd Generating shared keys
GB2606169A (en) 2021-04-27 2022-11-02 Nchain Licensing Ag Nested threshold signatures
GB2609908B (en) 2021-08-09 2023-10-18 Nchain Licensing Ag Generating Digital signatures
GB2612309A (en) 2021-10-26 2023-05-03 Nchain Licensing Ag Threshold signature scheme

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803725A (en) * 1985-03-11 1989-02-07 General Instrument Corp. Cryptographic system using interchangeable key blocks and selectable key fragments
US5016277A (en) * 1988-12-09 1991-05-14 The Exchange System Limited Partnership Encryption key entry method in a microcomputer-based encryption system
US4926478A (en) * 1988-12-30 1990-05-15 Gruenberg Elliot Method and apparatus for continuously acknowledged link encrypting
US5117458A (en) * 1989-11-01 1992-05-26 Hitachi, Ltd. Secret information service system and method
GB9003326D0 (en) * 1990-02-14 1990-04-11 Enfranchise Sixty Ltd Apparatus and method for data communication
US5144664A (en) * 1990-11-16 1992-09-01 General Instrument Corporation Apparatus and method for upgrading terminals to maintain a secure communication network
GB9213169D0 (en) * 1992-06-22 1992-08-05 Ncr Int Inc Cryptographic key management apparatus and method
IL106796A (en) * 1993-08-25 1997-11-20 Algorithmic Res Ltd Broadcast encryption

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8218769B2 (en) 2006-02-28 2012-07-10 Hitachi, Ltd. Encrypted communication system, communication status management server, encrypted communication method, and communication status management method
CN110419196A (zh) * 2017-03-17 2019-11-05 牛津大学创新有限公司 安全数据交换
CN110419196B (zh) * 2017-03-17 2023-11-03 牛津大学创新有限公司 安全数据交换
CN117240620A (zh) * 2023-11-13 2023-12-15 杭州金智塔科技有限公司 隐私集合求并集系统及方法
CN117240620B (zh) * 2023-11-13 2024-02-06 杭州金智塔科技有限公司 隐私集合求并集系统及方法
CN117473539A (zh) * 2023-12-28 2024-01-30 深圳市乐凡信息科技有限公司 数据加密方法、数据解密方法、终端设备及可读存储介质
CN117473539B (zh) * 2023-12-28 2024-04-26 深圳市乐凡信息科技有限公司 数据加密方法、数据解密方法、终端设备及可读存储介质

Also Published As

Publication number Publication date
NO20003651D0 (no) 2000-07-17
EP1050132A1 (fr) 2000-11-08
EP1050132A4 (fr) 2005-05-18
NO20003651L (no) 2000-09-18
WO1999037052A1 (fr) 1999-07-22
AU750042B2 (en) 2002-07-11
AU2758699A (en) 1999-08-02
CA2318452A1 (fr) 1999-07-22
JP2002510164A (ja) 2002-04-02
BR9907094A (pt) 2000-10-24

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20010418