NO20003651L - FremgangsmÕte og anordning for fremføring av en privat melding til utvalgte medlemmer - Google Patents

FremgangsmÕte og anordning for fremføring av en privat melding til utvalgte medlemmer

Info

Publication number
NO20003651L
NO20003651L NO20003651A NO20003651A NO20003651L NO 20003651 L NO20003651 L NO 20003651L NO 20003651 A NO20003651 A NO 20003651A NO 20003651 A NO20003651 A NO 20003651A NO 20003651 L NO20003651 L NO 20003651L
Authority
NO
Norway
Prior art keywords
message
subscriber device
administration
encrypted
held
Prior art date
Application number
NO20003651A
Other languages
English (en)
Other versions
NO20003651D0 (no
Inventor
Terence Edward Sumner
Original Assignee
Terence Edward Sumner
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 Terence Edward Sumner filed Critical Terence Edward Sumner
Publication of NO20003651D0 publication Critical patent/NO20003651D0/no
Publication of NO20003651L publication Critical patent/NO20003651L/no

Links

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 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (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)

Abstract

Et kryptert system (102, 103) for kringkasting av meldinger bestemmer de administrasjonskryptonøkler som holdes av hver utvalgt abonnentanordning (101) og som ikke holdes av hver ekskludert abonnentanordning i en gruppe. Den private melding blir delt opp i meldingsdeler med en meldingsdel for hver utelukket abonnentanordning, der hver meldingsdel skal krypteres ved bruk av hver administrasjonskryptonøkkel som holdes av de utvalgte abonnentanordninger (101) og ikke holdes av den utelukkede abonnentanordning. Hver meldingsdel blir kryptert ved bruk av administrasjonskryptonøklene og fører i det minste til de utvalgte abonnentanordninger med identifikasjon av de tilførte meldingsdeler og de meldingsdeler som er nødvendige for å gjenskape den private melding. Hver mottatt kryptert meldingsdel er nødvendig for å gjenskape den private melding. Hver mottatt kryptert meldingsdel blir dekryptert ved bruk av den tilhørende administrasjonskryptonøkkel, og de nødvendige meldingsdeler er valgt hvorfra den private melding blir gjenskapt ved sammensetning i den utvalgte abonnentanordning. (101).
NO20003651A 1998-01-19 2000-07-17 FremgangsmÕte og anordning for fremføring av en privat melding til utvalgte medlemmer NO20003651L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7177698P 1998-01-19 1998-01-19
PCT/US1999/000896 WO1999037052A1 (en) 1998-01-19 1999-01-15 Method and apparatus for conveying a private message to selected members

Publications (2)

Publication Number Publication Date
NO20003651D0 NO20003651D0 (no) 2000-07-17
NO20003651L true NO20003651L (no) 2000-09-18

Family

ID=22103516

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20003651A NO20003651L (no) 1998-01-19 2000-07-17 FremgangsmÕte og anordning for fremføring av en privat melding til utvalgte medlemmer

Country Status (8)

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

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001290188A1 (en) * 2000-09-29 2002-04-08 Nagravision S.A. Method for encrypting a formatted data set
GB2380369B (en) * 2001-09-27 2004-03-24 Marconi Comm Ltd A communications network encryption system
WO2006096035A1 (en) * 2005-03-10 2006-09-14 Electronics And Telecommunications Research Institute Encryption and decryption device in wireless portable internet system, and method thereof
JP4823717B2 (ja) 2006-02-28 2011-11-24 株式会社日立製作所 暗号通信システム、端末状態管理サーバ、暗号通信方法、および端末状態管理方法
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
CN112152908A (zh) 2015-02-16 2020-12-29 钉钉控股（开曼）有限公司 通讯方法
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
GB2560587A (en) * 2017-03-17 2018-09-19 Univ Oxford Innovation Ltd Secure data exchange
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
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
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

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

Also Published As

Publication number Publication date
CN1292185A (zh) 2001-04-18
AU2758699A (en) 1999-08-02
AU750042B2 (en) 2002-07-11
WO1999037052A1 (en) 1999-07-22
CA2318452A1 (en) 1999-07-22
EP1050132A4 (en) 2005-05-18
BR9907094A (pt) 2000-10-24
EP1050132A1 (en) 2000-11-08
JP2002510164A (ja) 2002-04-02
NO20003651D0 (no) 2000-07-17

Similar Documents

Publication Publication Date Title
NO20003651L (no) FremgangsmÕte og anordning for fremføring av en privat melding til utvalgte medlemmer
MY118736A (en) Scheme for authentication of at least one prover by a verifier
GB2342022A (en) Split-key cryptographic system and method
DK0697154T3 (da) Fremgangsmåde til rekeying af multiple kommunikationsgrupper gennem luften
WO2000074297A3 (en) Method and apparatus for secure distribution of public/private key pairs
DE60306835D1 (de) Vorrichtung zur sicheren Mehrfachsendung
WO2000002340A3 (en) Cryptographic communication process and apparatus
WO2001043335A3 (en) Synchronization of session keys
TW356628B (en) Generation of cryptographic signatures using hash keys
AU2423601A (en) Methods and apparatus for selective encryption and decryption of point to multi-point messages
WO2001003365A8 (en) Distributed group key management scheme for secure many-to-many communication
AU3144101A (en) Consumable authentication protocol and system
ATE320133T1 (de) Videogerät zum anschluss an ein lokales digitales netzwerk zwecks datenempfang
CA2264809A1 (en) Method and apparatus for encrypting radio traffic in a telecommunications network
GB9929748D0 (en) Cryptographic key management
SE0001044D0 (sv) Metod och system för kryptering och autentisiering
WO1998048389A3 (de) Verfahren zur gegenseitigen authentifizierung zweier einheiten
EP0982958A3 (en) Method for protecting mobile anonymity
IL136746A0 (en) System and method of sending and receiving secure data using anonymous keys
WO2020131530A3 (en) Secure data channel in a networked gaming system
DE60038042D1 (de) Einserkomplement-verschlüsselungskombinator
GB0028369D0 (en) A communication system
MX2025002615A (es) Sistema y metodo de comunicacion
DK1116368T3 (da) Sikkert dataoverföringssystem
AU2422499A (en) Key management system