DE69029877D1 - Telekonferenzverfahren für Verwaltungssystem mit Sicherheitstaste - Google Patents

Telekonferenzverfahren für Verwaltungssystem mit Sicherheitstaste

Info

Publication number
DE69029877D1
DE69029877D1 DE69029877T DE69029877T DE69029877D1 DE 69029877 D1 DE69029877 D1 DE 69029877D1 DE 69029877 T DE69029877 T DE 69029877T DE 69029877 T DE69029877 T DE 69029877T DE 69029877 D1 DE69029877 D1 DE 69029877D1
Authority
DE
Germany
Prior art keywords
teleconferencing
management system
security key
security
key
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.)
Expired - Fee Related
Application number
DE69029877T
Other languages
English (en)
Other versions
DE69029877T2 (de
Inventor
Thomas James Mihm Jr
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.)
General Dynamics Mission Systems Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE69029877D1 publication Critical patent/DE69029877D1/de
Publication of DE69029877T2 publication Critical patent/DE69029877T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/16—Automatic or semi-automatic exchanges with lock-out or secrecy provision in party-line systems
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
    • H04M2203/609—Secret communication
DE69029877T 1989-06-05 1990-06-04 Telekonferenzverfahren für Verwaltungssystem mit Sicherheitstaste Expired - Fee Related DE69029877T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/361,898 US5003593A (en) 1989-06-05 1989-06-05 Teleconferencing method for a secure key management system

Publications (2)

Publication Number Publication Date
DE69029877D1 true DE69029877D1 (de) 1997-03-20
DE69029877T2 DE69029877T2 (de) 1997-08-07

Family

ID=23423851

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69029877T Expired - Fee Related DE69029877T2 (de) 1989-06-05 1990-06-04 Telekonferenzverfahren für Verwaltungssystem mit Sicherheitstaste

Country Status (7)

Country Link
US (1) US5003593A (de)
EP (1) EP0402083B1 (de)
KR (1) KR0155164B1 (de)
AU (1) AU629641B2 (de)
DE (1) DE69029877T2 (de)
ES (1) ES2097134T3 (de)
HK (1) HK1007261A1 (de)

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US5224163A (en) * 1990-09-28 1993-06-29 Digital Equipment Corporation Method for delegating authorization from one entity to another through the use of session encryption keys
US5228083A (en) * 1991-06-28 1993-07-13 Digital Equipment Corporation Cryptographic processing in a communication network, using a single cryptographic engine
US5200999A (en) * 1991-09-27 1993-04-06 International Business Machines Corporation Public key cryptosystem key management based on control vectors
US5164988A (en) * 1991-10-31 1992-11-17 International Business Machines Corporation Method to establish and enforce a network cryptographic security policy in a public key cryptosystem
US5353351A (en) * 1992-06-09 1994-10-04 At&T Bell Laboratories Secure teleconferencing
KR100302222B1 (ko) * 1992-06-12 2001-11-22 그레이스 스테펀 에스 프로세스제어컴퓨터용보안프론트엔드통신시스템과그방법
WO1993025965A1 (en) * 1992-06-12 1993-12-23 The Dow Chemical Company Intelligent process control communication system and method
US5390252A (en) * 1992-12-28 1995-02-14 Nippon Telegraph And Telephone Corporation Authentication method and communication terminal and communication processing unit using the method
US5465300A (en) * 1993-12-27 1995-11-07 Motorola, Inc. Secure communication setup method
US5787172A (en) * 1994-02-24 1998-07-28 The Merdan Group, Inc. Apparatus and method for establishing a cryptographic link between elements of a system
DE69535935D1 (de) * 1994-02-24 2009-05-28 Comcast Cable Holdings Llc Verfahren und Vorrichtung zur Erstellung einer kryptographischen Verbindung zwischen Elementen eines Systems
US5615266A (en) * 1995-07-13 1997-03-25 Motorola, Inc Secure communication setup method
US6286034B1 (en) * 1995-08-25 2001-09-04 Canon Kabushiki Kaisha Communication apparatus, a communication system and a communication method
US6560707B2 (en) * 1995-11-06 2003-05-06 Xerox Corporation Multimedia coordination system
JP2812312B2 (ja) * 1996-01-12 1998-10-22 三菱電機株式会社 暗号化システム
DE19622630C1 (de) * 1996-06-05 1997-11-20 Siemens Ag Verfahren zum gruppenbasierten kryptographischen Schlüsselmanagement zwischen einer ersten Computereinheit und Gruppencomputereinheiten
CA2257477C (en) * 1996-06-05 2006-10-03 Siemens Aktiengesellschaft Process for cryptographic code management between a first computer unit and a second computer unit
WO1998052318A1 (en) * 1997-03-14 1998-11-19 Mobile Broadcasting Corporation System and method of data transmission in the am frequency spectrum
JPH11275068A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 鍵管理サーバ、チャットシステムの端末装置、チャットシステム及び記録媒体
US6606387B1 (en) * 1998-03-20 2003-08-12 Trusted Security Solutions, Inc. Secure establishment of cryptographic keys
GB2357225B (en) 1999-12-08 2003-07-16 Hewlett Packard Co Electronic certificate
GB2357226B (en) 1999-12-08 2003-07-16 Hewlett Packard Co Security protocol
GB2357227B (en) 1999-12-08 2003-12-17 Hewlett Packard Co Security protocol
GB2357228B (en) 1999-12-08 2003-07-09 Hewlett Packard Co Method and apparatus for discovering a trust chain imparting a required attribute to a subject
GB2357229B (en) 1999-12-08 2004-03-17 Hewlett Packard Co Security protocol
US6768771B1 (en) * 2000-05-23 2004-07-27 L3-Communications Corporation Multimode modem with automatic negotiation of operational mode
US8964604B2 (en) 2000-12-26 2015-02-24 Polycom, Inc. Conference endpoint instructing conference bridge to dial phone number
US9001702B2 (en) 2000-12-26 2015-04-07 Polycom, Inc. Speakerphone using a secure audio connection to initiate a second secure connection
US7864938B2 (en) 2000-12-26 2011-01-04 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US8948059B2 (en) * 2000-12-26 2015-02-03 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US7339605B2 (en) * 2004-04-16 2008-03-04 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US7221663B2 (en) * 2001-12-31 2007-05-22 Polycom, Inc. Method and apparatus for wideband conferencing
US8977683B2 (en) * 2000-12-26 2015-03-10 Polycom, Inc. Speakerphone transmitting password information to a remote device
WO2002083865A2 (en) * 2001-04-13 2002-10-24 First Genetic Trust Methods and systems for managing informed consent processes
US8934382B2 (en) 2001-05-10 2015-01-13 Polycom, Inc. Conference endpoint controlling functions of a remote device
EP1388080A4 (de) * 2001-05-10 2006-10-25 Polycom Israel Ltd Steuereinheit für ein mehrpunkt-multimedia-/audiosystem
US8976712B2 (en) * 2001-05-10 2015-03-10 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
US20030039362A1 (en) * 2001-08-24 2003-02-27 Andrea Califano Methods for indexing and storing genetic data
US8705719B2 (en) 2001-12-31 2014-04-22 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US7742588B2 (en) * 2001-12-31 2010-06-22 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US20050213726A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which transfers control information embedded in audio information between endpoints
US8934381B2 (en) * 2001-12-31 2015-01-13 Polycom, Inc. Conference endpoint instructing a remote device to establish a new connection
US7787605B2 (en) 2001-12-31 2010-08-31 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US8023458B2 (en) * 2001-12-31 2011-09-20 Polycom, Inc. Method and apparatus for wideband conferencing
US8885523B2 (en) * 2001-12-31 2014-11-11 Polycom, Inc. Speakerphone transmitting control information embedded in audio information through a conference bridge
US8947487B2 (en) * 2001-12-31 2015-02-03 Polycom, Inc. Method and apparatus for combining speakerphone and video conference unit operations
US8144854B2 (en) 2001-12-31 2012-03-27 Polycom Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US7978838B2 (en) 2001-12-31 2011-07-12 Polycom, Inc. Conference endpoint instructing conference bridge to mute participants
US8223942B2 (en) 2001-12-31 2012-07-17 Polycom, Inc. Conference endpoint requesting and receiving billing information from a conference bridge
US8102984B2 (en) * 2001-12-31 2012-01-24 Polycom Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US8457614B2 (en) * 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US8126029B2 (en) * 2005-06-08 2012-02-28 Polycom, Inc. Voice interference correction for mixed voice and spread spectrum data signaling
US8199791B2 (en) 2005-06-08 2012-06-12 Polycom, Inc. Mixed voice and spread spectrum data signaling with enhanced concealment of data
US7796565B2 (en) 2005-06-08 2010-09-14 Polycom, Inc. Mixed voice and spread spectrum data signaling with multiplexing multiple users with CDMA
US7568106B2 (en) * 2005-12-16 2009-07-28 International Business Machines Corporation Cooperative non-repudiated message exchange in a network environment
US8032761B2 (en) 2006-05-09 2011-10-04 Broadcom Corporation Method and system for memory attack protection to achieve a secure interface
US8560829B2 (en) * 2006-05-09 2013-10-15 Broadcom Corporation Method and system for command interface protection to achieve a secure interface
US8285988B2 (en) * 2006-05-09 2012-10-09 Broadcom Corporation Method and system for command authentication to achieve a secure interface
US20100220634A1 (en) * 2009-02-27 2010-09-02 Douglas Gisby Systems and methods for facilitating conference calls using security tokens
US20100220635A1 (en) * 2009-02-27 2010-09-02 Douglas Gisby Systems and methods for facilitating conference calls using multiple media streams
US8290135B2 (en) 2009-02-27 2012-10-16 Research In Motion Limited Systems and methods for facilitating conference calls using security keys
US10957445B2 (en) 2017-10-05 2021-03-23 Hill-Rom Services, Inc. Caregiver and staff information system
DE102021105402A1 (de) * 2021-03-05 2022-09-08 Infineon Technologies Ag Datenverarbeitungsvorrichtung und verfahren zum übermitteln von daten über einen bus
EP4106264A1 (de) * 2021-06-18 2022-12-21 Stichting IMEC Nederland System und verfahren zur durchführung eines sicheren schlüsselaustauschs

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US4182933A (en) * 1969-02-14 1980-01-08 The United States Of America As Represented By The Secretary Of The Army Secure communication system with remote key setting
US3674936A (en) * 1970-02-26 1972-07-04 Burroughs Corp Voice conference system
US4691347A (en) * 1985-02-15 1987-09-01 American Telephone And Telegraph Company, At&T Bell Laboratories Method and apparatus for controlling a conference
US4649233A (en) * 1985-04-11 1987-03-10 International Business Machines Corporation Method for establishing user authenication with composite session keys among cryptographically communicating nodes
US4888801A (en) * 1988-05-02 1989-12-19 Motorola, Inc. Hierarchical key management system

Also Published As

Publication number Publication date
EP0402083A3 (de) 1992-05-06
EP0402083A2 (de) 1990-12-12
DE69029877T2 (de) 1997-08-07
ES2097134T3 (es) 1997-04-01
AU5615590A (en) 1990-12-06
AU629641B2 (en) 1992-10-08
KR0155164B1 (ko) 1998-11-16
HK1007261A1 (en) 1999-04-09
KR920003783A (ko) 1992-02-29
US5003593A (en) 1991-03-26
EP0402083B1 (de) 1997-02-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GENERAL DYNAMICS DECISION SYSTEMS, INC. (N.D.GES.D

8339 Ceased/non-payment of the annual fee