NO20003651L - Procedure and arrangement for conveying a private message to selected members - Google Patents
Procedure and arrangement for conveying a private message to selected membersInfo
- 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
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 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)
- 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).An encrypted message broadcasting system (102, 103) determines the administration crypto keys held by each selected subscriber device (101) and not held by each excluded subscriber device in a group. The private message is divided into message parts with a message part for each excluded subscriber device, where each message part is to be encrypted using each administration crypto key held by the selected subscriber devices (101) and not held by the excluded subscriber device. Each message part is encrypted using the administration crypto keys and leads at least to the selected subscriber devices with identification of the supplied message parts and the message parts necessary to recreate the private message. Each received encrypted message portion is required to recreate the private message. Each received encrypted message part is decrypted using the associated administration crypto key, and the necessary message parts are selected from which the private message is recreated by composition in the selected subscriber device. (101).
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 (en) | 2000-07-17 |
NO20003651L true NO20003651L (en) | 2000-09-18 |
Family
ID=22103516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20003651A NO20003651L (en) | 1998-01-19 | 2000-07-17 | Procedure and arrangement for conveying a private message to selected members |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1050132A4 (en) |
JP (1) | JP2002510164A (en) |
CN (1) | CN1292185A (en) |
AU (1) | AU750042B2 (en) |
BR (1) | BR9907094A (en) |
CA (1) | CA2318452A1 (en) |
NO (1) | NO20003651L (en) |
WO (1) | WO1999037052A1 (en) |
Families Citing this family (19)
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 (en) | 2006-02-28 | 2011-11-24 | 株式会社日立製作所 | Encryption communication system, terminal state management server, encryption communication method, and terminal state management method |
KR101308023B1 (en) | 2011-10-27 | 2013-09-26 | 국방과학연구소 | Broadcast encryption method for securing recipient privacy |
JP5875441B2 (en) | 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 | Apparatus and method for encrypting data |
CN112152909B (en) | 2015-02-16 | 2022-11-01 | 钉钉控股(开曼)有限公司 | User message reminding method |
CN106034068A (en) | 2015-03-20 | 2016-10-19 | 阿里巴巴集团控股有限公司 | Method and device for private chat in group chat, client-side, server and system |
CN105610695B (en) | 2015-12-21 | 2021-01-12 | 阿里巴巴集团控股有限公司 | Object allocation method and device |
CN105681056B (en) | 2016-01-13 | 2019-03-19 | 阿里巴巴集团控股有限公司 | Object distribution method and device |
CN105812237B (en) | 2016-03-07 | 2020-12-04 | 钉钉控股(开曼)有限公司 | Method and device for quickly adding reminding object |
CN107306286B (en) | 2016-04-21 | 2020-12-04 | 钉钉控股(开曼)有限公司 | Processing method and device for offline attendance |
CN107305459A (en) | 2016-04-25 | 2017-10-31 | 阿里巴巴集团控股有限公司 | The sending method and device of voice and Multimedia Message |
CN107368995A (en) | 2016-05-13 | 2017-11-21 | 阿里巴巴集团控股有限公司 | Task processing method and device |
CN107800609B (en) * | 2016-09-05 | 2021-06-01 | 阿里巴巴集团控股有限公司 | Communication method and device |
CN107846345A (en) | 2016-09-18 | 2018-03-27 | 阿里巴巴集团控股有限公司 | The means of communication and device |
GB2560587A (en) * | 2017-03-17 | 2018-09-19 | Univ Oxford Innovation Ltd | Secure data exchange |
CN117240620B (en) * | 2023-11-13 | 2024-02-06 | 杭州金智塔科技有限公司 | Privacy set union system and method |
CN117473539B (en) * | 2023-12-28 | 2024-04-26 | 深圳市乐凡信息科技有限公司 | Data encryption method, data decryption method, terminal device, and readable storage medium |
Family Cites Families (8)
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 |
-
1999
- 1999-01-15 WO PCT/US1999/000896 patent/WO1999037052A1/en not_active Application Discontinuation
- 1999-01-15 CN CN99803467A patent/CN1292185A/en active Pending
- 1999-01-15 EP EP99908068A patent/EP1050132A4/en not_active Withdrawn
- 1999-01-15 BR BR9907094-4A patent/BR9907094A/en not_active IP Right Cessation
- 1999-01-15 JP JP2000540641A patent/JP2002510164A/en active Pending
- 1999-01-15 AU AU27586/99A patent/AU750042B2/en not_active Ceased
- 1999-01-15 CA CA002318452A patent/CA2318452A1/en not_active Abandoned
-
2000
- 2000-07-17 NO NO20003651A patent/NO20003651L/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU750042B2 (en) | 2002-07-11 |
JP2002510164A (en) | 2002-04-02 |
EP1050132A1 (en) | 2000-11-08 |
NO20003651D0 (en) | 2000-07-17 |
EP1050132A4 (en) | 2005-05-18 |
CN1292185A (en) | 2001-04-18 |
BR9907094A (en) | 2000-10-24 |
CA2318452A1 (en) | 1999-07-22 |
AU2758699A (en) | 1999-08-02 |
WO1999037052A1 (en) | 1999-07-22 |
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