DE3789769D1 - System zur erzeugung eines gemeinsamen geheimübertragungsschlüssels und kommunikationssystem unter verwendung des gemeinsamen geheimübertragungsschlüssels. - Google Patents

System zur erzeugung eines gemeinsamen geheimübertragungsschlüssels und kommunikationssystem unter verwendung des gemeinsamen geheimübertragungsschlüssels.

Info

Publication number
DE3789769D1
DE3789769D1 DE3789769T DE3789769T DE3789769D1 DE 3789769 D1 DE3789769 D1 DE 3789769D1 DE 3789769 T DE3789769 T DE 3789769T DE 3789769 T DE3789769 T DE 3789769T DE 3789769 D1 DE3789769 D1 DE 3789769D1
Authority
DE
Germany
Prior art keywords
common
key
generating
secretary
communication system
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
DE3789769T
Other languages
English (en)
Other versions
DE3789769T2 (de
Inventor
Tutomu Matumoto
Hideki Imai
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.)
ADVANCE TOKIO TOKYO KK
Original Assignee
ADVANCE TOKIO TOKYO KK
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
Priority claimed from JP61178652A external-priority patent/JPS6336634A/ja
Priority claimed from JP61251896A external-priority patent/JP2980320B2/ja
Application filed by ADVANCE TOKIO TOKYO KK filed Critical ADVANCE TOKIO TOKYO KK
Application granted granted Critical
Publication of DE3789769D1 publication Critical patent/DE3789769D1/de
Publication of DE3789769T2 publication Critical patent/DE3789769T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819Key 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)
    • H04L9/083Key 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0838Key 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
    • H04L9/0847Key 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 identity based encryption [IBE] schemes
DE3789769T 1986-07-31 1987-07-31 System zur erzeugung eines gemeinsamen geheimübertragungsschlüssels und kommunikationssystem unter verwendung des gemeinsamen geheimübertragungsschlüssels. Expired - Fee Related DE3789769T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61178652A JPS6336634A (ja) 1986-07-31 1986-07-31 暗号鍵共有方式
JP61251896A JP2980320B2 (ja) 1986-10-24 1986-10-24 暗号文による通信方式における暗号鍵共有方式
PCT/JP1987/000572 WO1988001120A1 (en) 1986-07-31 1987-07-31 System for generating a shared cryptographic key and a communication system using the shared cryptographic key

Publications (2)

Publication Number Publication Date
DE3789769D1 true DE3789769D1 (de) 1994-06-09
DE3789769T2 DE3789769T2 (de) 1994-08-11

Family

ID=26498759

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789769T Expired - Fee Related DE3789769T2 (de) 1986-07-31 1987-07-31 System zur erzeugung eines gemeinsamen geheimübertragungsschlüssels und kommunikationssystem unter verwendung des gemeinsamen geheimübertragungsschlüssels.

Country Status (5)

Country Link
US (1) US5016276A (de)
EP (1) EP0277247B1 (de)
DE (1) DE3789769T2 (de)
HK (1) HK96996A (de)
WO (1) WO1988001120A1 (de)

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WO1994026045A1 (en) * 1993-05-05 1994-11-10 Zunquan Liu A repertoire of mappings for a cryptosystem
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US6788788B1 (en) 1998-09-16 2004-09-07 Murata Kikai Kabushiki Kaisha Cryptographic communication method, encryption method, and cryptographic communication system
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US7080255B1 (en) 1999-05-19 2006-07-18 Murata Kikai Kabushiki Kaisha Secret key generation method, encryption method, and cryptographic communications method and system
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KR20010038851A (ko) * 1999-10-27 2001-05-15 최각진 보안통신 시스템에서의 암호키 분배 방식
JP2001211154A (ja) * 2000-01-25 2001-08-03 Murata Mach Ltd 秘密鍵生成方法,暗号化方法及び暗号通信方法
JP3587751B2 (ja) * 2000-01-25 2004-11-10 村田機械株式会社 共通鍵生成器,暗号通信方法,暗号通信システム及び記録媒体
JP2001211157A (ja) * 2000-01-25 2001-08-03 Murata Mach Ltd 秘密鍵登録方法、秘密鍵登録器、秘密鍵発行方法、暗号通信方法、暗号通信システム及び記録媒体
JP2001211153A (ja) * 2000-01-25 2001-08-03 Murata Mach Ltd 秘密鍵生成方法
US7239701B1 (en) 2000-05-02 2007-07-03 Murata Machinery Ltd. Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
US20030133576A1 (en) * 2000-10-18 2003-07-17 Frederic Grumiaux Generation of a common encryption key
WO2003017559A2 (en) * 2001-08-13 2003-02-27 Board Of Trustees Of The Leland Stanford Junior University Systems and methods for identity-based encryption and related cryptographic techniques
US7363494B2 (en) * 2001-12-04 2008-04-22 Rsa Security Inc. Method and apparatus for performing enhanced time-based authentication
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US6886096B2 (en) * 2002-11-14 2005-04-26 Voltage Security, Inc. Identity-based encryption system
US7412059B1 (en) 2002-11-27 2008-08-12 Voltage Security, Inc. Public-key encryption system
US20040201647A1 (en) 2002-12-02 2004-10-14 Mark Jackson Pulver Stitching of integrated circuit components
US7003117B2 (en) 2003-02-05 2006-02-21 Voltage Security, Inc. Identity-based encryption system for secure data distribution
US7571321B2 (en) * 2003-03-14 2009-08-04 Voltage Security, Inc. Identity-based-encryption messaging system
US7921292B1 (en) 2003-04-04 2011-04-05 Voltage Security, Inc. Secure messaging systems
US7502943B2 (en) * 2003-04-18 2009-03-10 Via Technologies, Inc. Microprocessor apparatus and method for providing configurable cryptographic block cipher round results
US7392400B2 (en) * 2003-04-18 2008-06-24 Via Technologies, Inc. Microprocessor apparatus and method for optimizing block cipher cryptographic functions
US7536560B2 (en) * 2003-04-18 2009-05-19 Via Technologies, Inc. Microprocessor apparatus and method for providing configurable cryptographic key size
US7529368B2 (en) * 2003-04-18 2009-05-05 Via Technologies, Inc. Apparatus and method for performing transparent output feedback mode cryptographic functions
US7844053B2 (en) * 2003-04-18 2010-11-30 Ip-First, Llc Microprocessor apparatus and method for performing block cipher cryptographic functions
US7529367B2 (en) * 2003-04-18 2009-05-05 Via Technologies, Inc. Apparatus and method for performing transparent cipher feedback mode cryptographic functions
US7925891B2 (en) * 2003-04-18 2011-04-12 Via Technologies, Inc. Apparatus and method for employing cryptographic functions to generate a message digest
US7519833B2 (en) * 2003-04-18 2009-04-14 Via Technologies, Inc. Microprocessor apparatus and method for enabling configurable data block size in a cryptographic engine
US7542566B2 (en) * 2003-04-18 2009-06-02 Ip-First, Llc Apparatus and method for performing transparent cipher block chaining mode cryptographic functions
US7900055B2 (en) * 2003-04-18 2011-03-01 Via Technologies, Inc. Microprocessor apparatus and method for employing configurable block cipher cryptographic algorithms
US7321910B2 (en) * 2003-04-18 2008-01-22 Ip-First, Llc Microprocessor apparatus and method for performing block cipher cryptographic functions
US8060755B2 (en) * 2003-04-18 2011-11-15 Via Technologies, Inc Apparatus and method for providing user-generated key schedule in a microprocessor cryptographic engine
US7539876B2 (en) * 2003-04-18 2009-05-26 Via Technologies, Inc. Apparatus and method for generating a cryptographic key schedule in a microprocessor
US7532722B2 (en) * 2003-04-18 2009-05-12 Ip-First, Llc Apparatus and method for performing transparent block cipher cryptographic functions
US7580521B1 (en) 2003-06-25 2009-08-25 Voltage Security, Inc. Identity-based-encryption system with hidden public key attributes
US7017181B2 (en) * 2003-06-25 2006-03-21 Voltage Security, Inc. Identity-based-encryption messaging system with public parameter host servers
US7266847B2 (en) * 2003-09-25 2007-09-04 Voltage Security, Inc. Secure message system with remote decryption service
US7103911B2 (en) * 2003-10-17 2006-09-05 Voltage Security, Inc. Identity-based-encryption system with district policy information
US7523314B2 (en) * 2003-12-22 2009-04-21 Voltage Security, Inc. Identity-based-encryption message management system
JP2006108903A (ja) * 2004-10-01 2006-04-20 Hiromi Fukaya 暗号化データ配布方法、暗号化装置、復号化装置、暗号化プログラム及び復号化プログラム
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JP5479408B2 (ja) 2011-07-06 2014-04-23 日立オートモティブシステムズ株式会社 車載ネットワークシステム
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JPH06130827A (ja) * 1992-10-15 1994-05-13 Sharp Corp 電子写真装置における転写装置

Also Published As

Publication number Publication date
DE3789769T2 (de) 1994-08-11
HK96996A (en) 1996-06-14
EP0277247B1 (de) 1994-05-04
US5016276A (en) 1991-05-14
EP0277247A1 (de) 1988-08-10
WO1988001120A1 (en) 1988-02-11
EP0277247A4 (de) 1990-04-10

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee