GB2598112A - Threshold signatures - Google Patents

Threshold signatures Download PDF

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Publication number
GB2598112A
GB2598112A GB2012874.0A GB202012874A GB2598112A GB 2598112 A GB2598112 A GB 2598112A GB 202012874 A GB202012874 A GB 202012874A GB 2598112 A GB2598112 A GB 2598112A
Authority
GB
United Kingdom
Prior art keywords
signature
message
participant
public key
transaction
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Withdrawn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
GB2012874.0A
Other languages
English (en)
Other versions
GB202012874D0 (en
Inventor
Pettit Michaella
Steven Wright Craig
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.)
Nchain Holdings Ltd
Original Assignee
Nchain Holdings 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 Nchain Holdings Ltd filed Critical Nchain Holdings Ltd
Priority to GB2012874.0A priority Critical patent/GB2598112A/en
Publication of GB202012874D0 publication Critical patent/GB202012874D0/en
Priority to EP21746463.5A priority patent/EP4169206A1/en
Priority to JP2023507541A priority patent/JP2023539432A/ja
Priority to US18/020,861 priority patent/US20230308287A1/en
Priority to CN202180050970.0A priority patent/CN115885498A/zh
Priority to PCT/EP2021/070124 priority patent/WO2022037869A1/en
Publication of GB2598112A publication Critical patent/GB2598112A/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Withdrawn legal-status Critical Current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
    • H04L9/32—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
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • 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
    • 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
    • H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
    • 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
    • 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
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
GB2012874.0A 2020-08-18 2020-08-18 Threshold signatures Withdrawn GB2598112A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2012874.0A GB2598112A (en) 2020-08-18 2020-08-18 Threshold signatures
EP21746463.5A EP4169206A1 (en) 2020-08-18 2021-07-19 Threshold signatures
JP2023507541A JP2023539432A (ja) 2020-08-18 2021-07-19 しきい値署名
US18/020,861 US20230308287A1 (en) 2020-08-18 2021-07-19 Threshold signatures
CN202180050970.0A CN115885498A (zh) 2020-08-18 2021-07-19 阈值签名
PCT/EP2021/070124 WO2022037869A1 (en) 2020-08-18 2021-07-19 Threshold signatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2012874.0A GB2598112A (en) 2020-08-18 2020-08-18 Threshold signatures

Publications (2)

Publication Number Publication Date
GB202012874D0 GB202012874D0 (en) 2020-09-30
GB2598112A true GB2598112A (en) 2022-02-23

Family

ID=72615433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2012874.0A Withdrawn GB2598112A (en) 2020-08-18 2020-08-18 Threshold signatures

Country Status (6)

Country Link
US (1) US20230308287A1 (https=)
EP (1) EP4169206A1 (https=)
JP (1) JP2023539432A (https=)
CN (1) CN115885498A (https=)
GB (1) GB2598112A (https=)
WO (1) WO2022037869A1 (https=)

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CN113094675B (zh) * 2021-04-29 2023-03-28 香港中文大学（深圳） 基于分布式模型训练的用户认证方法及装置
US11902451B2 (en) * 2021-07-01 2024-02-13 Fujitsu Limited Cross-blockchain identity and key management
US12574236B2 (en) * 2021-10-15 2026-03-10 Google Llc Stateful hash-based signing with a single public key and multiple independent signers
CN116318636B (zh) * 2021-12-20 2025-07-04 数据通信科学技术研究所 一种基于sm2的门限签名方法
US12309137B2 (en) * 2022-03-31 2025-05-20 Lenovo (United States) Inc. Adding devices to a network via a zero-knowledge protocol
US12524241B2 (en) * 2022-08-02 2026-01-13 Bank Of America Corporation System and method for automated command access approval across a network of servers
CN115412260B (zh) * 2022-08-30 2023-10-20 云海链控股股份有限公司 Sm2门限签名方法、系统、设备及计算机可读存储介质
US20240223375A1 (en) * 2022-12-28 2024-07-04 Dropbox, Inc. Zero-knowledge encryption architecture for content management systems
JPWO2024180903A1 (https=) * 2023-02-27 2024-09-06
US12574215B2 (en) * 2023-04-17 2026-03-10 Dell Products L.P. System and method for managing the security of sensitive data using multiple encryption
CN116915416B (zh) * 2023-09-14 2023-12-15 北京信安世纪科技股份有限公司 一种证书签名方法、装置以及一种证书获取方法、装置
CN119402202B (zh) * 2024-10-12 2025-11-04 湖北工业大学 适配器签名方法、签名装置、电子设备及存储介质
CN119484127B (zh) * 2024-11-21 2025-10-21 上海零数众合信息科技有限公司 基于秘密共享的群身份安全匿名认证方法及系统

Citations (3)

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WO2017145016A1 (en) * 2016-02-23 2017-08-31 nChain Holdings Limited Determining a common secret for the secure exchange of information and hierarchical, deterministic cryptographic keys
WO2019034986A1 (en) * 2017-08-15 2019-02-21 nChain Holdings Limited METHOD USED BY DISTRIBUTED SAFE GENERATION COMPUTER
WO2019193452A1 (en) * 2018-04-05 2019-10-10 nChain Holdings Limited Computer implemented method and system for transferring access to a digital asset

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FR2763194B1 (fr) * 1997-05-07 2000-07-28 Gemplus Card Int Generateur pseudo-aleatoire base sur une fonction de hachage pour systemes cryptographiques necessitant le tirage d'aleas
JP3634636B2 (ja) * 1998-08-05 2005-03-30 株式会社東芝 データ再生装置及びデータ記録装置並びにプログラム記録媒体
JP4292835B2 (ja) * 2003-03-13 2009-07-08 沖電気工業株式会社 秘密再構成方法、分散秘密再構成装置、及び秘密再構成システム
US8918648B2 (en) * 2010-02-25 2014-12-23 Certicom Corp. Digital signature and key agreement schemes
US8775813B2 (en) * 2010-02-26 2014-07-08 Certicom Corp. ElGamal signature schemes
US9621525B2 (en) * 2014-06-02 2017-04-11 Qualcomm Incorporated Semi-deterministic digital signature generation
US9641341B2 (en) * 2015-03-31 2017-05-02 Duo Security, Inc. Method for distributed trust authentication
US10103885B2 (en) * 2016-01-20 2018-10-16 Mastercard International Incorporated Method and system for distributed cryptographic key provisioning and storage via elliptic curve cryptography
US10411897B2 (en) * 2017-02-17 2019-09-10 Factom, Inc. Secret sharing via blockchains
JP2020517135A (ja) * 2017-04-11 2020-06-11 エヌチェーン ホールディングス リミテッドＮｃｈａｉｎ Ｈｏｌｄｉｎｇｓ Ｌｉｍｉｔｅｄ ブロックチェーン間のセキュアな転送
GB201710176D0 (en) * 2017-06-26 2017-08-09 Nchain Holdings Ltd Computer-implemented system and method
US10511436B1 (en) * 2017-07-31 2019-12-17 EMC IP Holding Company LLC Protecting key material using white-box cryptography and split key techniques
CN118944895A (zh) * 2018-01-16 2024-11-12 区块链控股有限公司 获取数字签名的数据的计算机实现方法和系统
GB201803815D0 (en) * 2018-03-09 2018-04-25 Nchain Holdings Ltd Computer-implemented methods and systems
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US11444779B2 (en) * 2018-08-02 2022-09-13 Paypal, Inc. Techniques for securing application programming interface requests using multi-party digital signatures
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GB2587028A (en) * 2019-09-16 2021-03-17 Nchain Holdings Ltd Cryptographically linked identities
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GB2596072A (en) * 2020-06-15 2021-12-22 Nchain Holdings Ltd Generating secret shares
US11870914B2 (en) * 2020-09-04 2024-01-09 Nchain Licensing Ag Digital signatures
US12316752B2 (en) * 2021-09-30 2025-05-27 Seagate Technology Llc Polynomial function secret sharing
CN116501694A (zh) * 2022-01-21 2023-07-28 戴尔产品有限公司 数据存储方法、数据读取方法、电子设备和程序产品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017145016A1 (en) * 2016-02-23 2017-08-31 nChain Holdings Limited Determining a common secret for the secure exchange of information and hierarchical, deterministic cryptographic keys
WO2019034986A1 (en) * 2017-08-15 2019-02-21 nChain Holdings Limited METHOD USED BY DISTRIBUTED SAFE GENERATION COMPUTER
WO2019193452A1 (en) * 2018-04-05 2019-10-10 nChain Holdings Limited Computer implemented method and system for transferring access to a digital asset

Also Published As

Publication number Publication date
WO2022037869A1 (en) 2022-02-24
CN115885498A (zh) 2023-03-31
US20230308287A1 (en) 2023-09-28
GB202012874D0 (en) 2020-09-30
JP2023539432A (ja) 2023-09-14
EP4169206A1 (en) 2023-04-26

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