HK1007261A1 - Teleconferencing method for a secure key management system - Google Patents

Teleconferencing method for a secure key management system

Info

Publication number
HK1007261A1
HK1007261A1 HK98106541A HK98106541A HK1007261A1 HK 1007261 A1 HK1007261 A1 HK 1007261A1 HK 98106541 A HK98106541 A HK 98106541A HK 98106541 A HK98106541 A HK 98106541A HK 1007261 A1 HK1007261 A1 HK 1007261A1
Authority
HK
Hong Kong
Prior art keywords
management system
key management
secure key
teleconferencing method
teleconferencing
Prior art date
Application number
HK98106541A
Other languages
English (en)
Inventor
Thomas James Mihm
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
Publication of HK1007261A1 publication Critical patent/HK1007261A1/xx

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
HK98106541A 1989-06-05 1998-06-25 Teleconferencing method for a secure key management system HK1007261A1 (en)

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 (1)

Publication Number Publication Date
HK1007261A1 true HK1007261A1 (en) 1999-04-09

Family

ID=23423851

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106541A HK1007261A1 (en) 1989-06-05 1998-06-25 Teleconferencing method for a secure key management system

Country Status (7)

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

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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
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
US20030051136A1 (en) * 1995-11-06 2003-03-13 Pavel Curtis Multimedia coordination system
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ATE198114T1 (de) * 1996-06-05 2000-12-15 Siemens Ag Verfahren zur aushandlung einer sicherheitspolitik zwischen einer ersten computereinheit und einer zweiten computereinheit
DE19622630C1 (de) * 1996-06-05 1997-11-20 Siemens Ag Verfahren zum gruppenbasierten kryptographischen Schlüsselmanagement zwischen einer ersten Computereinheit und Gruppencomputereinheiten
WO1998052318A1 (en) * 1997-03-14 1998-11-19 Mobile Broadcasting Corporation System and method of data transmission in the am frequency spectrum
US6606387B1 (en) * 1998-03-20 2003-08-12 Trusted Security Solutions, Inc. Secure establishment of cryptographic keys
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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
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GB2357227B (en) * 1999-12-08 2003-12-17 Hewlett Packard Co Security protocol
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US6768771B1 (en) * 2000-05-23 2004-07-27 L3-Communications Corporation Multimode modem with automatic negotiation of operational mode
US8977683B2 (en) * 2000-12-26 2015-03-10 Polycom, Inc. Speakerphone transmitting password information to a remote device
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US7221663B2 (en) * 2001-12-31 2007-05-22 Polycom, Inc. Method and apparatus for wideband conferencing
US7864938B2 (en) 2000-12-26 2011-01-04 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US7339605B2 (en) * 2004-04-16 2008-03-04 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US8948059B2 (en) * 2000-12-26 2015-02-03 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US9001702B2 (en) 2000-12-26 2015-04-07 Polycom, Inc. Speakerphone using a secure audio connection to initiate a second secure connection
WO2002083865A2 (en) * 2001-04-13 2002-10-24 First Genetic Trust Methods and systems for managing informed consent processes
AU2002258135A1 (en) * 2001-05-10 2002-11-18 Polycom Israel Ltd. Control unit for multipoint multimedia/audio system
US8976712B2 (en) * 2001-05-10 2015-03-10 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
US8934382B2 (en) 2001-05-10 2015-01-13 Polycom, Inc. Conference endpoint controlling functions of a remote device
US20030039362A1 (en) * 2001-08-24 2003-02-27 Andrea Califano Methods for indexing and storing genetic data
US7742588B2 (en) * 2001-12-31 2010-06-22 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US8947487B2 (en) * 2001-12-31 2015-02-03 Polycom, Inc. Method and apparatus for combining speakerphone and video conference unit operations
US8023458B2 (en) * 2001-12-31 2011-09-20 Polycom, Inc. Method and apparatus for wideband conferencing
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US8934381B2 (en) * 2001-12-31 2015-01-13 Polycom, Inc. Conference endpoint instructing a remote device to establish a new connection
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US20050213726A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which transfers control information embedded in audio information between endpoints
US7787605B2 (en) 2001-12-31 2010-08-31 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US8885523B2 (en) * 2001-12-31 2014-11-11 Polycom, Inc. Speakerphone transmitting control information embedded in audio information through a conference bridge
US8144854B2 (en) 2001-12-31 2012-03-27 Polycom Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US8102984B2 (en) * 2001-12-31 2012-01-24 Polycom Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US8705719B2 (en) 2001-12-31 2014-04-22 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
US7796565B2 (en) 2005-06-08 2010-09-14 Polycom, Inc. Mixed voice and spread spectrum data signaling with multiplexing multiple users with CDMA
US8199791B2 (en) 2005-06-08 2012-06-12 Polycom, Inc. Mixed voice and spread spectrum data signaling with enhanced concealment of data
US7568106B2 (en) * 2005-12-16 2009-07-28 International Business Machines Corporation Cooperative non-repudiated message exchange in a network environment
US8285988B2 (en) * 2006-05-09 2012-10-09 Broadcom Corporation Method and system for command authentication to achieve a secure interface
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US8560829B2 (en) * 2006-05-09 2013-10-15 Broadcom Corporation Method and system for command interface protection to achieve a secure interface
US20100220635A1 (en) * 2009-02-27 2010-09-02 Douglas Gisby Systems and methods for facilitating conference calls using multiple media streams
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US10957445B2 (en) 2017-10-05 2021-03-23 Hill-Rom Services, Inc. Caregiver and staff information system
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EP4106264A1 (en) * 2021-06-18 2022-12-21 Stichting IMEC Nederland System and method for performing secure key exchange

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US4691347A (en) * 1985-02-15 1987-09-01 American Telephone And Telegraph Company, At&T Bell Laboratories Method and apparatus for controlling a conference
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US4888801A (en) * 1988-05-02 1989-12-19 Motorola, Inc. Hierarchical key management system

Also Published As

Publication number Publication date
EP0402083A3 (en) 1992-05-06
EP0402083A2 (en) 1990-12-12
US5003593A (en) 1991-03-26
AU5615590A (en) 1990-12-06
DE69029877D1 (de) 1997-03-20
AU629641B2 (en) 1992-10-08
KR0155164B1 (ko) 1998-11-16
KR920003783A (ko) 1992-02-29
EP0402083B1 (en) 1997-02-05
DE69029877T2 (de) 1997-08-07
ES2097134T3 (es) 1997-04-01

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20070604