JPH10133576A - 公開鍵暗号方法および装置 - Google Patents

公開鍵暗号方法および装置

Info

Publication number
JPH10133576A
JPH10133576A JP8290525A JP29052596A JPH10133576A JP H10133576 A JPH10133576 A JP H10133576A JP 8290525 A JP8290525 A JP 8290525A JP 29052596 A JP29052596 A JP 29052596A JP H10133576 A JPH10133576 A JP H10133576A
Authority
JP
Japan
Prior art keywords
digital signature
value
hash function
public key
output
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.)
Pending
Application number
JP8290525A
Other languages
English (en)
Japanese (ja)
Inventor
Kazuo Takaragi
和夫 宝木
Hiroyuki Kurumaya
博之 車谷
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8290525A priority Critical patent/JPH10133576A/ja
Priority to EP97118704A priority patent/EP0840478A3/en
Priority to US08/961,557 priority patent/US6341349B1/en
Publication of JPH10133576A publication Critical patent/JPH10133576A/ja
Pending 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/3013—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the discrete logarithm problem, e.g. ElGamal or Diffie-Hellman 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • G06F7/724—Finite field arithmetic
    • G06F7/725—Finite field arithmetic over elliptic curves
JP8290525A 1996-10-31 1996-10-31 公開鍵暗号方法および装置 Pending JPH10133576A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8290525A JPH10133576A (ja) 1996-10-31 1996-10-31 公開鍵暗号方法および装置
EP97118704A EP0840478A3 (en) 1996-10-31 1997-10-28 Digital signature generating/verifying method and system using public key encryption
US08/961,557 US6341349B1 (en) 1996-10-31 1997-10-30 Digital signature generating/verifying method and system using public key encryption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8290525A JPH10133576A (ja) 1996-10-31 1996-10-31 公開鍵暗号方法および装置

Publications (1)

Publication Number Publication Date
JPH10133576A true JPH10133576A (ja) 1998-05-22

Family

ID=17757162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8290525A Pending JPH10133576A (ja) 1996-10-31 1996-10-31 公開鍵暗号方法および装置

Country Status (3)

Country Link
US (1) US6341349B1 (US06341349-20020122-M00002.png)
EP (1) EP0840478A3 (US06341349-20020122-M00002.png)
JP (1) JPH10133576A (US06341349-20020122-M00002.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008075420A1 (ja) * 2006-12-20 2008-06-26 Fujitsu Limited 電子署名プログラム、電子署名装置、および電子署名方法

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321741B (en) * 1997-02-03 2000-10-04 Certicom Corp Data card verification system
US6738899B1 (en) * 1999-03-30 2004-05-18 Pitney Bowes Inc. Method for publishing certification information certified by a plurality of authorities and apparatus and portable data storage media used to practice said method
US6847951B1 (en) 1999-03-30 2005-01-25 Pitney Bowes Inc. Method for certifying public keys used to sign postal indicia and indicia so signed
US6704867B1 (en) * 1999-03-30 2004-03-09 Bitney Bowes, Inc. Method for publishing certification information representative of selectable subsets of rights and apparatus and portable data storage media used to practice said method
US7006999B1 (en) * 1999-05-13 2006-02-28 Xerox Corporation Method for enabling privacy and trust in electronic communities
US6988199B2 (en) 2000-07-07 2006-01-17 Message Secure Secure and reliable document delivery
US7606760B2 (en) * 1999-06-18 2009-10-20 Echarge Corporation Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account
AU781021B2 (en) 1999-06-18 2005-04-28 Echarge Corporation Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account
US7249097B2 (en) * 1999-06-18 2007-07-24 Echarge Corporation Method for ordering goods, services, and content over an internetwork using a virtual payment account
GB2359156B (en) * 2000-02-14 2004-10-13 Reuters Ltd Methods of computer programs for and apparatus for providing and accessing digital content
JP5591431B2 (ja) * 2000-05-25 2014-09-17 イーチャージ・コーポレーション セキュリティトランザクションプロトコル
US7571234B2 (en) * 2000-06-08 2009-08-04 Aol Llc Authentication of electronic data
US7251728B2 (en) 2000-07-07 2007-07-31 Message Secure Corporation Secure and reliable document delivery using routing lists
EP1317708A4 (en) * 2000-08-08 2008-03-19 Wachovia Corp AUTHENTICATING THIRD PARTIES ON THE INTERNET USING ELECTRONIC TICKETS
US7089302B1 (en) * 2000-08-30 2006-08-08 Mcafee, Inc. Method and system for maintaining a communications protocol session
US20030023850A1 (en) * 2001-07-26 2003-01-30 International Business Machines Corporation Verifying messaging sessions by digital signatures of participants
US7257617B2 (en) * 2001-07-26 2007-08-14 International Business Machines Corporation Notifying users when messaging sessions are recorded
US7269622B2 (en) * 2001-07-26 2007-09-11 International Business Machines Corporation Watermarking messaging sessions
GB2379146A (en) * 2001-08-23 2003-02-26 Inventec Corp Transmission of encrypted and digitally signed files over the internet
US6938014B1 (en) * 2002-01-16 2005-08-30 Sterling Commerce, Inc. Non-repudiable translation of electronic documents
US20040030887A1 (en) * 2002-08-07 2004-02-12 Harrisville-Wolff Carol L. System and method for providing secure communications between clients and service providers
US8261062B2 (en) * 2003-03-27 2012-09-04 Microsoft Corporation Non-cryptographic addressing
US7590695B2 (en) 2003-05-09 2009-09-15 Aol Llc Managing electronic messages
US7739602B2 (en) 2003-06-24 2010-06-15 Aol Inc. System and method for community centric resource sharing based on a publishing subscription model
EP1687931B1 (en) 2003-10-28 2021-12-29 BlackBerry Limited Method and apparatus for verifiable generation of public keys
WO2005071881A1 (ja) 2004-01-22 2005-08-04 Nec Corporation ミックスネットシステム
US20050177715A1 (en) * 2004-02-09 2005-08-11 Microsoft Corporation Method and system for managing identities in a peer-to-peer networking environment
US7603716B2 (en) * 2004-02-13 2009-10-13 Microsoft Corporation Distributed network security service
US7716726B2 (en) * 2004-02-13 2010-05-11 Microsoft Corporation System and method for protecting a computing device from computer exploits delivered over a networked environment in a secured communication
US7814543B2 (en) * 2004-02-13 2010-10-12 Microsoft Corporation System and method for securing a computer system connected to a network from attacks
US7929689B2 (en) * 2004-06-30 2011-04-19 Microsoft Corporation Call signs
US7716727B2 (en) * 2004-10-29 2010-05-11 Microsoft Corporation Network security device and method for protecting a computing device in a networked environment
US20060259440A1 (en) * 2005-05-13 2006-11-16 Keycorp Method and system for electronically signing a document
US7854013B2 (en) * 2005-06-03 2010-12-14 Working Solutions International, Inc. Method for electronic data and signature collection, and system
JP4622811B2 (ja) * 2005-11-04 2011-02-02 株式会社日立製作所 電子文書の真正性保証システム
US8086842B2 (en) * 2006-04-21 2011-12-27 Microsoft Corporation Peer-to-peer contact exchange
US20110060688A1 (en) * 2007-11-23 2011-03-10 Media Patents, S.L. Apparatus and methods for the distribution of digital files
JP4584300B2 (ja) * 2007-12-19 2010-11-17 富士通株式会社 電子署名プログラム、コンピュータにより読み取り可能な記録媒体、電子署名装置、電子署名方法
US20090313171A1 (en) * 2008-06-17 2009-12-17 Microsoft Corporation Electronic transaction verification
US8572695B2 (en) * 2009-09-08 2013-10-29 Ricoh Co., Ltd Method for applying a physical seal authorization to documents in electronic workflows
ES2400894B1 (es) 2011-05-13 2014-03-11 Telefónica, S.A. Procedimiento para una firma digital múltiple
US9792451B2 (en) 2011-12-09 2017-10-17 Echarge2 Corporation System and methods for using cipher objects to protect data
US10148285B1 (en) 2012-07-25 2018-12-04 Erich Schmitt Abstraction and de-abstraction of a digital data stream
CN103916851B (zh) * 2013-01-06 2017-08-18 华为终端有限公司 一种安全认证的方法、设备及系统
US9058493B1 (en) * 2013-01-16 2015-06-16 Amdocs Software Systems Limited System, method, and computer program for conditionally implementing protected content
US10795858B1 (en) 2014-02-18 2020-10-06 Erich Schmitt Universal abstraction and de-abstraction of a digital data stream
CN104184588B (zh) * 2014-08-15 2017-09-08 同济大学 基于身份的不可拆分数字签名方法
JP2016116134A (ja) * 2014-12-16 2016-06-23 パナソニックＩｐマネジメント株式会社 署名検証装置、署名生成装置、署名処理システム、署名検証方法及び署名生成方法
US10460340B2 (en) * 2015-07-31 2019-10-29 Wideorbit Inc. Verifying ad requests
WO2017152037A1 (en) 2016-03-04 2017-09-08 1Usf, Inc. Systems and methods for media codecs and containers
IT201600076089A1 (it) * 2016-07-20 2018-01-20 St Microelectronics Srl Procedimento per la generazione di una firma digitale di un messaggio, corrispondenti unita' di generazione, apparato elettronico e prodotto informatico
CN110445603B (zh) * 2019-06-28 2022-08-26 成都鹰翔天际科技有限公司 一种去中心化随机数生成方法
CN111147250B (zh) * 2019-12-18 2022-08-02 北京江南天安科技有限公司 一种数字签名方法、装置、发送端、接收端及系统
CN112737777B (zh) * 2020-12-29 2023-01-10 北京百度网讯科技有限公司 基于密钥的门限签名和验签方法、装置、设备和介质
US11658833B1 (en) 2022-12-06 2023-05-23 Citibank, N.A. Systems and methods for conducting cryptographically secure actions in public, non-permissioned blockchains using bifurcated self-executing programs
US11770263B1 (en) * 2022-12-06 2023-09-26 Citibank, N.A. Systems and methods for enforcing cryptographically secure actions in public, non-permissioned blockchains using bifurcated self-executing programs comprising shared digital signature requirements

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005200A (en) * 1988-02-12 1991-04-02 Fischer Addison M Public key/signature cryptosystem with enhanced digital signature certification
US4868877A (en) * 1988-02-12 1989-09-19 Fischer Addison M Public key/signature cryptosystem with enhanced digital signature certification
DE69113245D1 (de) * 1991-03-14 1995-10-26 Omnisec Ag Regensdorf Verschlüsselungssystem mit öffentlichem Schlüssel unter Verwendung elliptischer Kurven über Ringe.
US5272755A (en) * 1991-06-28 1993-12-21 Matsushita Electric Industrial Co., Ltd. Public key cryptosystem with an elliptic curve
US5231668A (en) * 1991-07-26 1993-07-27 The United States Of America, As Represented By The Secretary Of Commerce Digital signature algorithm
US5159632A (en) * 1991-09-17 1992-10-27 Next Computer, Inc. Method and apparatus for public key exchange in a cryptographic system
US5271061A (en) * 1991-09-17 1993-12-14 Next Computer, Inc. Method and apparatus for public key exchange in a cryptographic system
JP3338088B2 (ja) 1992-09-10 2002-10-28 株式会社東芝 電子署名装置及び電子署名システム
US5442707A (en) * 1992-09-28 1995-08-15 Matsushita Electric Industrial Co., Ltd. Method for generating and verifying electronic signatures and privacy communication using elliptic curves
JPH06315036A (ja) 1993-04-28 1994-11-08 Matsushita Electric Ind Co Ltd ディジタル署名付き電子メールシステム
JPH07262281A (ja) 1994-03-18 1995-10-13 Hitachi Ltd メモインタフェース付き伝票処理方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008075420A1 (ja) * 2006-12-20 2008-06-26 Fujitsu Limited 電子署名プログラム、電子署名装置、および電子署名方法

Also Published As

Publication number Publication date
EP0840478A3 (en) 2003-12-03
EP0840478A2 (en) 1998-05-06
US6341349B1 (en) 2002-01-22

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