DE19847941A1 - Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer - Google Patents

Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer

Info

Publication number
DE19847941A1
DE19847941A1 DE19847941A DE19847941A DE19847941A1 DE 19847941 A1 DE19847941 A1 DE 19847941A1 DE 19847941 A DE19847941 A DE 19847941A DE 19847941 A DE19847941 A DE 19847941A DE 19847941 A1 DE19847941 A1 DE 19847941A1
Authority
DE
Germany
Prior art keywords
tree
new
participants
participant
leaf
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.)
Withdrawn
Application number
DE19847941A
Other languages
German (de)
English (en)
Inventor
Joerg Schwenk
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.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom AG
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 Deutsche Telekom AG filed Critical Deutsche Telekom AG
Priority to DE19847941A priority Critical patent/DE19847941A1/de
Priority to JP2000576579A priority patent/JP2002527992A/ja
Priority to HU0104054A priority patent/HU223920B1/hu
Priority to PCT/EP1999/007051 priority patent/WO2000022775A1/de
Priority to US09/807,181 priority patent/US7606369B1/en
Priority to EP99970528A priority patent/EP1119942B1/de
Priority to DE59906607T priority patent/DE59906607D1/de
Priority to AT99970528T priority patent/ATE247349T1/de
Publication of DE19847941A1 publication Critical patent/DE19847941A1/de
Priority to US12/582,651 priority patent/US20100054464A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • 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
    • H04L9/0836—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 using tree structure or hierarchical structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Computer Security & Cryptography (AREA)
  • Finance (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Strategic Management (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
DE19847941A 1998-10-09 1998-10-09 Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer Withdrawn DE19847941A1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19847941A DE19847941A1 (de) 1998-10-09 1998-10-09 Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer
JP2000576579A JP2002527992A (ja) 1998-10-09 1999-09-22 ｎ人の加入者用の共通の暗号用の鍵の確立方法
HU0104054A HU223920B1 (hu) 1998-10-09 1999-09-22 Eljárás közös kriptográfiai kulcs létrehozására n felhasználó számára
PCT/EP1999/007051 WO2000022775A1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer
US09/807,181 US7606369B1 (en) 1998-10-09 1999-09-22 Process for establishing a common cryptographic key for N subscribers
EP99970528A EP1119942B1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer
DE59906607T DE59906607D1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer
AT99970528T ATE247349T1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer
US12/582,651 US20100054464A1 (en) 1998-10-09 2009-10-20 Process for establishing a common cryptographic key for n subscribers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19847941A DE19847941A1 (de) 1998-10-09 1998-10-09 Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer

Publications (1)

Publication Number Publication Date
DE19847941A1 true DE19847941A1 (de) 2000-04-13

Family

ID=7884814

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19847941A Withdrawn DE19847941A1 (de) 1998-10-09 1998-10-09 Verfahren zum Etablieren eines gemeinsamen krytografischen Schlüssels für n Teilnehmer
DE59906607T Expired - Lifetime DE59906607D1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59906607T Expired - Lifetime DE59906607D1 (de) 1998-10-09 1999-09-22 Verfahren zum etablieren eines gemeinsamen kryptografischen schüssels für n teilnehmer

Country Status (7)

Country Link
US (2) US7606369B1 (enExample)
EP (1) EP1119942B1 (enExample)
JP (1) JP2002527992A (enExample)
AT (1) ATE247349T1 (enExample)
DE (2) DE19847941A1 (enExample)
HU (1) HU223920B1 (enExample)
WO (1) WO2000022775A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004102871A1 (en) * 2003-05-13 2004-11-25 Telecom Italia S.P.A. A process for secure communication over a wireless network, related network and computer program product
EP1655884A1 (en) * 2004-11-09 2006-05-10 Sony Corporation Method and system for shifting key agreement status, and information storage medium
US7225339B2 (en) 2000-04-06 2007-05-29 Sony Corporation Information recording/playback apparatus and method
WO2008026184A3 (en) * 2006-08-31 2008-06-26 Koninkl Philips Electronics Nv Method of key management
WO2009047325A1 (fr) * 2007-10-12 2009-04-16 Thales Dispositif et procede pour aiguiller des flux d'echange de valeurs publiques ou non sensibles permettant de creer des cles secretes communes entre plusieurs zones

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006262230A (ja) * 2005-03-18 2006-09-28 Sony Corp 情報処理システム、情報解析装置および方法、情報処理装置および方法、並びにプログラム
KR101133262B1 (ko) * 2010-04-08 2012-04-05 충남대학교산학협력단 강인한 ｓｃａｄａ시스템의 하이브리드 키 관리방법 및 세션키 생성방법
US20150036820A1 (en) * 2013-07-30 2015-02-05 Gideon Samid Probability Durable Entropic Advantage
WO2018216749A1 (ja) * 2017-05-25 2018-11-29 Ｎｅｃネットワーク・センサ株式会社 暗号通信方法、情報処理装置及びプログラム
JP6871200B2 (ja) * 2018-06-27 2021-05-12 Kddi株式会社 鍵合意システム及び鍵生成装置
CN112422276B (zh) * 2020-11-04 2022-03-25 郑州信大捷安信息技术股份有限公司 一种多方密钥协商的实现方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309569A (en) * 1979-09-05 1982-01-05 The Board Of Trustees Of The Leland Stanford Junior University Method of providing digital signatures
US4661658A (en) * 1985-02-12 1987-04-28 International Business Machines Corporation Offline PIN validation with DES
EP0314292B1 (en) * 1987-10-30 1996-04-17 International Business Machines Corporation Concurrent record access database system using an index tree structure and method therefor
DE19511298A1 (de) * 1995-03-28 1996-10-02 Deutsche Telekom Ag Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder
DE19649292A1 (de) * 1996-11-28 1998-06-04 Deutsche Telekom Ag Verfahren zum Sichern eines durch eine Schlüsselhierarchie geschützten Systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389737A (ja) * 1989-08-25 1991-04-15 Motorola Inc 階層型キー管理システム
US5315658B1 (en) * 1992-04-20 1995-09-12 Silvio Micali Fair cryptosystems and methods of use
JPH05327748A (ja) * 1992-05-27 1993-12-10 Fujitsu Ltd 同報通信システム
JP3493688B2 (ja) * 1993-06-25 2004-02-03 ソニー株式会社 通信装置と方法、通信管理装置と方法、並びに公開鍵暗号処理システムと方法
IL106796A (en) * 1993-08-25 1997-11-20 Algorithmic Res Ltd Broadcast encryption
DE19538385A1 (de) * 1995-10-14 1997-04-17 Deutsche Telekom Ag Verfahren zur Etablierung eines gemeinsamen Schlüssels für autorisierte Personen durch eine Zentrale
US6049878A (en) * 1998-01-20 2000-04-11 Sun Microsystems, Inc. Efficient, secure multicasting with global knowledge
US6041122A (en) * 1998-02-27 2000-03-21 Intel Corporation Method and apparatus for hiding crytographic keys utilizing autocorrelation timing encoding and computation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309569A (en) * 1979-09-05 1982-01-05 The Board Of Trustees Of The Leland Stanford Junior University Method of providing digital signatures
US4661658A (en) * 1985-02-12 1987-04-28 International Business Machines Corporation Offline PIN validation with DES
EP0314292B1 (en) * 1987-10-30 1996-04-17 International Business Machines Corporation Concurrent record access database system using an index tree structure and method therefor
DE19511298A1 (de) * 1995-03-28 1996-10-02 Deutsche Telekom Ag Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder
DE19649292A1 (de) * 1996-11-28 1998-06-04 Deutsche Telekom Ag Verfahren zum Sichern eines durch eine Schlüsselhierarchie geschützten Systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 05327748 A.,In: Patent Abstracts of Japan *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7225339B2 (en) 2000-04-06 2007-05-29 Sony Corporation Information recording/playback apparatus and method
WO2004102871A1 (en) * 2003-05-13 2004-11-25 Telecom Italia S.P.A. A process for secure communication over a wireless network, related network and computer program product
EP1655884A1 (en) * 2004-11-09 2006-05-10 Sony Corporation Method and system for shifting key agreement status, and information storage medium
WO2008026184A3 (en) * 2006-08-31 2008-06-26 Koninkl Philips Electronics Nv Method of key management
WO2009047325A1 (fr) * 2007-10-12 2009-04-16 Thales Dispositif et procede pour aiguiller des flux d'echange de valeurs publiques ou non sensibles permettant de creer des cles secretes communes entre plusieurs zones
FR2922392A1 (fr) * 2007-10-12 2009-04-17 Thales Sa Dispositif et procede pour aiguiller des flux d'echange de valeurs publiques (ou non sensibles) permettant de creer des cles secretes communes entre plusieurs zones.

Also Published As

Publication number Publication date
HU223920B1 (hu) 2005-03-29
WO2000022775A1 (de) 2000-04-20
JP2002527992A (ja) 2002-08-27
ATE247349T1 (de) 2003-08-15
EP1119942A1 (de) 2001-08-01
DE59906607D1 (de) 2003-09-18
HUP0104054A2 (hu) 2002-03-28
US20100054464A1 (en) 2010-03-04
HUP0104054A3 (en) 2003-05-28
US7606369B1 (en) 2009-10-20
EP1119942B1 (de) 2003-08-13

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8141 Disposal/no request for examination