DE602006002025D1 - Abfrage-antwort-signaturen und sichere diffie-hellman-protokolle - Google Patents

Abfrage-antwort-signaturen und sichere diffie-hellman-protokolle

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Publication number
DE602006002025D1
DE602006002025D1 DE602006002025T DE602006002025T DE602006002025D1 DE 602006002025 D1 DE602006002025 D1 DE 602006002025D1 DE 602006002025 T DE602006002025 T DE 602006002025T DE 602006002025 T DE602006002025 T DE 602006002025T DE 602006002025 D1 DE602006002025 D1 DE 602006002025D1
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Germany
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value
arguments
argument
signer
predetermined function
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DE602006002025T
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English (en)
Inventor
Hugo Krawczyk
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International Business Machines Corp
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International Business Machines Corp
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Publication of DE602006002025D1 publication Critical patent/DE602006002025D1/de
Active legal-status Critical Current
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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
    • H04L9/0844—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 with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06Q20/3678—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 e-cash details, e.g. blinded, divisible or detecting double spending
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
    • 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
    • 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
    • H04L9/32—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
    • H04L9/321—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 a third party or a trusted authority
    • 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
    • H04L9/3218—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 using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • 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
    • 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
    • H04L9/3271—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 using challenge-response

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Business, Economics & Management (AREA)
  • Strategic Management (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
DE602006002025T 2005-02-10 2006-02-10 Abfrage-antwort-signaturen und sichere diffie-hellman-protokolle Active DE602006002025D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65179805P 2005-02-10 2005-02-10
US11/348,304 US7747865B2 (en) 2005-02-10 2006-02-07 Method and structure for challenge-response signatures and high-performance secure Diffie-Hellman protocols
PCT/EP2006/050841 WO2006084896A1 (en) 2005-02-10 2006-02-10 Challenge-response signatures and secure diffie-hellman protocols

Publications (1)

Publication Number Publication Date
DE602006002025D1 true DE602006002025D1 (de) 2008-09-11

Family

ID=36781288

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006002025T Active DE602006002025D1 (de) 2005-02-10 2006-02-10 Abfrage-antwort-signaturen und sichere diffie-hellman-protokolle

Country Status (8)

Country Link
US (1) US7747865B2 (de)
EP (1) EP1847062B1 (de)
JP (1) JP2009526411A (de)
AT (1) ATE403297T1 (de)
CA (1) CA2596500C (de)
DE (1) DE602006002025D1 (de)
ES (1) ES2308725T3 (de)
WO (1) WO2006084896A1 (de)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2550362C (en) * 2005-06-14 2015-12-01 Certicom Corp. Enhanced key agreement and transport protocol
DE102007001070B3 (de) * 2006-09-29 2008-04-30 Siemens Ag Verfahren zum verschlüsselten Datenausgleich eines Systems mit mindestens einem Datenträger und einem Lesegerät
KR100753843B1 (ko) 2006-09-29 2007-08-31 한국전자통신연구원 양 방향 채널 환경에서의 키 교환 프로토콜을 단 방향 채널환경에서의 키 교환 프로토콜로 변환하는 방법
KR101356736B1 (ko) * 2007-01-19 2014-02-06 삼성전자주식회사 콘텐츠의 무결성을 확인하기 위한 콘텐츠 제공 장치 및방법 및 콘텐츠 사용 장치 및 방법, 및 콘텐츠 사용 장치를폐지하는 콘텐츠 제공 장치 및 방법
US20090006202A1 (en) * 2007-02-26 2009-01-01 Picup, Llc System and method for providing identity-based services
CN101175076B (zh) * 2007-10-23 2012-01-11 赵运磊 在线计算高效、可抵赖、不可锻造安全的密钥交换方法
JP4922139B2 (ja) * 2007-11-28 2012-04-25 日本電信電話株式会社 鍵共有方法、第１装置、第２装置、及び、それらのプログラム
US8533474B2 (en) * 2008-02-27 2013-09-10 Red Hat, Inc. Generating session keys
EP2124382A1 (de) * 2008-05-20 2009-11-25 Siemens Aktiengesellschaft Verfahren zum verschlüsselten Datenaustausch und Kommunikationssystem
JP5329676B2 (ja) * 2008-12-16 2013-10-30 サーティコム コーポレーション 鍵合意プロトコルの加速
US10068282B2 (en) * 2009-06-24 2018-09-04 Uniloc 2017 Llc System and method for preventing multiple online purchases
JP5295048B2 (ja) * 2009-09-07 2013-09-18 日本電信電話株式会社 情報共有システム、方法及びプログラム
EP2334008A1 (de) * 2009-12-10 2011-06-15 Tata Consultancy Services Limited System und Verfahren zum Entwurf von sicheren Client-Server-Kommunikationsprotokollen auf Grundlage einer zertifikatslosen Infrastruktur mit öffentlichen Schlüsseln
JP5449214B2 (ja) * 2011-01-19 2014-03-19 日本電信電話株式会社 情報共有方法、情報共有システム、情報共有装置、及びプログラム
US9439067B2 (en) 2011-09-12 2016-09-06 George Cherian Systems and methods of performing link setup and authentication
US9143937B2 (en) 2011-09-12 2015-09-22 Qualcomm Incorporated Wireless communication using concurrent re-authentication and connection setup
US8837741B2 (en) 2011-09-12 2014-09-16 Qualcomm Incorporated Systems and methods for encoding exchanges with a set of shared ephemeral key data
EP2813029B1 (de) * 2012-02-09 2020-12-02 Irdeto B.V. System und verfahren zum erstellen und schützen kryptografischer schlüssel
EP2677681A1 (de) * 2012-06-19 2013-12-25 Bundesrepublik Deutschland, vertreten durch das Bundesministerium des Innern, vertreten durch das Bundesamt für Sicherheit Verfahren zur zumindest einseitig authentisierten, sicheren Kommunikation zwischen zwei Kommunikationspartnern
JP5863605B2 (ja) * 2012-09-04 2016-02-16 日本電信電話株式会社 鍵交換システム、要求装置、応答装置、鍵交換方法、およびプログラム
EP2974129B1 (de) * 2013-03-15 2020-03-11 Assa Abloy AB Nicht-abstreitbarkeit von elektronischen transaktionen
US9294503B2 (en) 2013-08-26 2016-03-22 A10 Networks, Inc. Health monitor based distributed denial of service attack mitigation
CN104767613B (zh) 2014-01-02 2018-02-13 腾讯科技（深圳）有限公司 签名验证方法、装置及系统
CN111355749A (zh) * 2014-06-18 2020-06-30 维萨国际服务协会 用于已认证的通信的高效方法
US9756071B1 (en) 2014-09-16 2017-09-05 A10 Networks, Inc. DNS denial of service attack protection
US9537886B1 (en) 2014-10-23 2017-01-03 A10 Networks, Inc. Flagging security threats in web service requests
US9584318B1 (en) 2014-12-30 2017-02-28 A10 Networks, Inc. Perfect forward secrecy distributed denial of service attack defense
US9900343B1 (en) 2015-01-05 2018-02-20 A10 Networks, Inc. Distributed denial of service cellular signaling
US9848013B1 (en) * 2015-02-05 2017-12-19 A10 Networks, Inc. Perfect forward secrecy distributed denial of service attack detection
US10063591B1 (en) 2015-02-14 2018-08-28 A10 Networks, Inc. Implementing and optimizing secure socket layer intercept
JP2018507646A (ja) 2015-02-27 2018-03-15 テレフオンアクチーボラゲット エルエム エリクソン（パブル） 通信デバイスとネットワークデバイスとの間の通信におけるセキュリティ構成
US20170063853A1 (en) * 2015-07-10 2017-03-02 Infineon Technologies Ag Data cipher and decipher based on device and data authentication
US10469594B2 (en) 2015-12-08 2019-11-05 A10 Networks, Inc. Implementation of secure socket layer intercept
US10505984B2 (en) 2015-12-08 2019-12-10 A10 Networks, Inc. Exchange of control information between secure socket layer gateways
WO2017140381A1 (en) * 2016-02-19 2017-08-24 Nec Europe Ltd. Method for storing data on a storage entity
EP3257006B1 (de) 2016-02-23 2018-10-03 Nchain Holdings Limited Sicherheit von persönlicher vorrichtung unter verwendung einer elliptischen kurvenkryptografie zur geheimnisteilung
KR20180114939A (ko) 2016-02-23 2018-10-19 엔체인 홀딩스 리미티드 블록 체인을 통해 자산 관련 활동을 제어하는 시스템 및 방법
LT3268914T (lt) 2016-02-23 2018-11-12 nChain Holdings Limited Bendros paslapties, skirtos saugiems informacijos mainams, nustatymas ir hierarchiniai determinuoti kriptografiniai raktai
BR112018016805A2 (pt) 2016-02-23 2018-12-26 Nchain Holdings Ltd método e sistema para transferência eficiente de criptomoeda associada com um pagamento em um blockchain que leva a um pagamento automatizado, método e sistema com base em contratos inteligentes
WO2017145003A1 (en) 2016-02-23 2017-08-31 nChain Holdings Limited Blockchain-based exchange with tokenisation
CN116957790A (zh) 2016-02-23 2023-10-27 区块链控股有限公司 一种实现区块链上交换的通证化方法及系统
EP3860037A1 (de) 2016-02-23 2021-08-04 Nchain Holdings Limited Kryptographisches verfahren und system zur sicheren extraktion von daten aus einer blockchain
AU2017223129A1 (en) 2016-02-23 2018-07-12 nChain Holdings Limited Secure multiparty loss resistant storage and transfer of cryptographic keys for blockchain based systems in conjunction with a wallet management system
CN115641131A (zh) 2016-02-23 2023-01-24 区块链控股有限公司 在区块链上安全转移实体的方法和系统
CN108781161B (zh) 2016-02-23 2021-08-20 区块链控股有限公司 用于控制和分发数字内容的区块链实现的方法
WO2017145004A1 (en) 2016-02-23 2017-08-31 nChain Holdings Limited Universal tokenisation system for blockchain-based cryptocurrencies
CN109074563B (zh) 2016-02-23 2022-04-19 区块链控股有限公司 区块链系统内的基于代理的图灵完备交易集成反馈
EP4369273A2 (de) 2016-02-23 2024-05-15 nChain Licensing AG Verfahren und system zur sicherung von computersoftware unter verwendung einer verteilten hash-tabelle und einer blockchain
MX2018010057A (es) 2016-02-23 2019-01-21 Nchain Holdings Ltd Metodo de registro y de manejo automatico para contratos inteligentes de cumplimiento obligado por cadenas de bloques.
US10116634B2 (en) 2016-06-28 2018-10-30 A10 Networks, Inc. Intercepting secure session upon receipt of untrusted certificate
US10158666B2 (en) 2016-07-26 2018-12-18 A10 Networks, Inc. Mitigating TCP SYN DDoS attacks using TCP reset
SG10201606164TA (en) * 2016-07-26 2018-02-27 Huawei Int Pte Ltd System and method for obtaining a common session key between devices
US11122033B2 (en) * 2017-12-19 2021-09-14 International Business Machines Corporation Multi factor authentication
US11012435B2 (en) 2017-12-19 2021-05-18 International Business Machines Corporation Multi factor authentication
CN109995509B (zh) * 2019-05-08 2021-07-06 西安电子科技大学 基于消息恢复签名的认证密钥交换方法
US11973861B2 (en) * 2022-02-09 2024-04-30 Northrop Grumman Systems Corporation Secure key generation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200770A (en) * 1977-09-06 1980-04-29 Stanford University Cryptographic apparatus and method
US5491750A (en) * 1993-12-30 1996-02-13 International Business Machines Corporation Method and apparatus for three-party entity authentication and key distribution using message authentication codes
US6487661B2 (en) * 1995-04-21 2002-11-26 Certicom Corp. Key agreement and transport protocol
US5761305A (en) * 1995-04-21 1998-06-02 Certicom Corporation Key agreement and transport protocol with implicit signatures
US6226383B1 (en) * 1996-04-17 2001-05-01 Integrity Sciences, Inc. Cryptographic methods for remote authentication
GB9621274D0 (en) * 1996-10-11 1996-11-27 Certicom Corp Signature protocol for mail delivery
CA2369540C (en) * 2001-12-31 2013-10-01 Certicom Corp. Method and apparatus for computing a shared secret key
US7073068B2 (en) * 2002-05-24 2006-07-04 Lucent Technologies Inc. Method and apparatus for distributing shares of a password for use in multi-server password authentication

Also Published As

Publication number Publication date
ATE403297T1 (de) 2008-08-15
WO2006084896A1 (en) 2006-08-17
ES2308725T3 (es) 2008-12-01
US20060179319A1 (en) 2006-08-10
EP1847062A1 (de) 2007-10-24
EP1847062B1 (de) 2008-07-30
CA2596500A1 (en) 2006-08-17
CA2596500C (en) 2014-03-25
JP2009526411A (ja) 2009-07-16
US7747865B2 (en) 2010-06-29

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