EP3132560A4 - Procédé de génération distribuée sécurisée et flexible de signatures numériques à sécurité proactive basées sur un algorithme de signature numérique à courbe elliptique (ecdsa) - Google Patents
Procédé de génération distribuée sécurisée et flexible de signatures numériques à sécurité proactive basées sur un algorithme de signature numérique à courbe elliptique (ecdsa) Download PDFInfo
- Publication number
- EP3132560A4 EP3132560A4 EP15780610.0A EP15780610A EP3132560A4 EP 3132560 A4 EP3132560 A4 EP 3132560A4 EP 15780610 A EP15780610 A EP 15780610A EP 3132560 A4 EP3132560 A4 EP 3132560A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- ecdsa
- secure
- elliptic curve
- signature algorithm
- distributed generation
- 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
Links
Classifications
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- 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
- H04L9/3252—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 using DSA or related signature schemes, e.g. elliptic based signatures, ElGamal or Schnorr schemes
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- 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
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
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- 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
- H04L9/3255—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 using group based signatures, e.g. ring or threshold signatures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
- Computer And Data Communications (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201461981191P | 2014-04-17 | 2014-04-17 | |
PCT/US2015/025804 WO2015160839A1 (fr) | 2014-04-17 | 2015-04-14 | Procédé de génération distribuée sécurisée et flexible de signatures numériques à sécurité proactive basées sur un algorithme de signature numérique à courbe elliptique (ecdsa) |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3132560A1 EP3132560A1 (fr) | 2017-02-22 |
EP3132560A4 true EP3132560A4 (fr) | 2017-12-20 |
Family
ID=54324506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15780610.0A Pending EP3132560A4 (fr) | 2014-04-17 | 2015-04-14 | Procédé de génération distribuée sécurisée et flexible de signatures numériques à sécurité proactive basées sur un algorithme de signature numérique à courbe elliptique (ecdsa) |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3132560A4 (fr) |
CN (1) | CN106664205B (fr) |
WO (1) | WO2015160839A1 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9787472B1 (en) | 2013-03-13 | 2017-10-10 | Hrl Laboratories, Llc | Information secure protocol for mobile proactive secret sharing with near-optimal resilience |
CN108028751B (zh) * | 2015-10-29 | 2021-08-27 | 赫尔实验室有限公司 | 用于移动主动秘密共享的系统、计算机可读介质和方法 |
GB201707168D0 (en) | 2017-05-05 | 2017-06-21 | Nchain Holdings Ltd | Computer-implemented system and method |
KR102627049B1 (ko) * | 2017-08-15 | 2024-01-19 | 엔체인 홀딩스 리미티드 | 임계치 볼트를 생성하는 컴퓨터로 구현되는 방법 |
KR102627039B1 (ko) | 2017-08-15 | 2024-01-19 | 엔체인 홀딩스 리미티드 | 임계치 디지털 시그니처 방법 및 시스템 |
GB201720753D0 (en) | 2017-12-13 | 2018-01-24 | Nchain Holdings Ltd | Computer-implemented system and method |
KR20200099149A (ko) * | 2017-12-15 | 2020-08-21 | 엔체인 홀딩스 리미티드 | 낮은 엔트로피 패스워드로 블록체인 트랜잭션을 승인하기 위한 컴퓨터 구현 시스템 및 방법 |
EP3741081B1 (fr) * | 2018-01-16 | 2021-10-13 | Nchain Holdings Limited | Procédé et système implémentés sur ordinateur de sorte à obtenir des données signées numériquement |
GB201817506D0 (en) | 2018-03-02 | 2018-12-12 | Nchain Holdings Ltd | Computer implemented method and system |
FR3085815B1 (fr) * | 2018-07-11 | 2022-07-15 | Ledger | Gouvernance de securite du traitement d'une requete numerique |
US10887092B2 (en) * | 2018-08-09 | 2021-01-05 | Hrl Laboratories, Llc | Anonymous allocation and majority voting in a compromised environment |
EP3654578B1 (fr) | 2018-11-16 | 2022-04-06 | SafeTech BV | Procédés et systèmes de gestion de clés cryptographiques privées pour sécuriser le stockage et le transfert d'informations entre plusieurs parties |
CN109728910A (zh) * | 2018-12-27 | 2019-05-07 | 北京永恒纪元科技有限公司 | 一种高效的门限分布式椭圆曲线密钥生成及签名方法和系统 |
CN111435911B (zh) * | 2019-01-14 | 2023-02-17 | 海南自贸区图灵区块链科技有限公司 | 一种在线多方安全数据处理方法及装置 |
TWI689194B (zh) * | 2019-01-22 | 2020-03-21 | 開曼群島商現代財富控股有限公司 | 基於無分派者秘密共享的門檻式簽章系統及其方法 |
WO2020177977A1 (fr) | 2019-03-05 | 2020-09-10 | Sepior Aps | Procédé pour la fourniture d'une signature numérique à un message |
CN110278078B (zh) * | 2019-06-17 | 2022-03-22 | 矩阵元技术(深圳)有限公司 | 一种数据处理方法、装置及系统 |
CN110674511A (zh) * | 2019-08-30 | 2020-01-10 | 深圳壹账通智能科技有限公司 | 基于椭圆曲线加密算法的离线数据保护方法及系统 |
GB2603495A (en) * | 2021-02-05 | 2022-08-10 | Nchain Holdings Ltd | Generating shared keys |
CN113434886B (zh) * | 2021-07-01 | 2022-05-17 | 支付宝(杭州)信息技术有限公司 | 联合生成用于安全计算的数据元组的方法及装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7209555B2 (en) * | 2001-10-25 | 2007-04-24 | Matsushita Electric Industrial Co., Ltd. | Elliptic curve converting device, elliptic curve converting method, elliptic curve utilization device and elliptic curve generating device |
US8139770B2 (en) * | 2003-12-23 | 2012-03-20 | Wells Fargo Bank, N.A. | Cryptographic key backup and escrow system |
US8656167B2 (en) * | 2008-02-22 | 2014-02-18 | Security First Corp. | Systems and methods for secure workgroup management and communication |
CN101710859B (zh) * | 2009-11-17 | 2014-02-12 | 深圳国微技术有限公司 | 一种认证密钥协商方法 |
EP2363976A1 (fr) * | 2010-02-25 | 2011-09-07 | Certicom Corp. | Schémas améliorés de signature numérique et de partage de clé |
US8949688B2 (en) * | 2011-04-01 | 2015-02-03 | Cleversafe, Inc. | Updating error recovery information in a dispersed storage network |
US9065637B2 (en) * | 2012-01-25 | 2015-06-23 | CertiVox Ltd. | System and method for securing private keys issued from distributed private key generator (D-PKG) nodes |
US8745415B2 (en) * | 2012-09-26 | 2014-06-03 | Pure Storage, Inc. | Multi-drive cooperation to generate an encryption key |
-
2015
- 2015-04-14 EP EP15780610.0A patent/EP3132560A4/fr active Pending
- 2015-04-14 WO PCT/US2015/025804 patent/WO2015160839A1/fr active Application Filing
- 2015-04-14 CN CN201580019894.1A patent/CN106664205B/zh active Active
Non-Patent Citations (3)
Title |
---|
CHARIKLEIA ZOURIDAKI ET AL: "Distributed CA-based PKI for Mobile Ad Hoc Networks Using Elliptic Curve Cryptography", 24 June 2004, PUBLIC KEY INFRASTRUCTURE; [LECTURE NOTES IN COMPUTER SCIENCE;;LNCS], SPRINGER-VERLAG, BERLIN/HEIDELBERG, PAGE(S) 232 - 245, ISBN: 978-3-540-22216-3, XP019007629 * |
IBRAHIM M H ET AL: "A robust threshold elliptic curve digital signature providing a new verifiable secret sharing scheme", MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS. CAIRO, EGYPT, DEC. 27 - 30, 2003; [MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS], PISCATAWAY, NJ, IEEE, US, vol. 1, 27 December 2003 (2003-12-27), pages 276 - 280, XP010867444, ISBN: 978-0-7803-8294-7, DOI: 10.1109/MWSCAS.2003.1562272 * |
See also references of WO2015160839A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN106664205A (zh) | 2017-05-10 |
WO2015160839A1 (fr) | 2015-10-22 |
EP3132560A1 (fr) | 2017-02-22 |
CN106664205B (zh) | 2020-06-05 |
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