SG11202000808WA - Computer-implemented method of generating a threshold vault - Google Patents

Computer-implemented method of generating a threshold vault

Info

Publication number
SG11202000808WA
SG11202000808WA SG11202000808WA SG11202000808WA SG11202000808WA SG 11202000808W A SG11202000808W A SG 11202000808WA SG 11202000808W A SG11202000808W A SG 11202000808WA SG 11202000808W A SG11202000808W A SG 11202000808WA SG 11202000808W A SG11202000808W A SG 11202000808WA
Authority
SG
Singapore
Prior art keywords
generating
computer
implemented method
threshold vault
vault
Prior art date
Application number
SG11202000808WA
Other languages
English (en)
Inventor
Craig Steven Wright
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
Priority claimed from GBGB1713064.2A external-priority patent/GB201713064D0/en
Priority claimed from GBGB1714660.6A external-priority patent/GB201714660D0/en
Priority claimed from PCT/IB2018/055604 external-priority patent/WO2019034951A1/en
Application filed by Nchain Holdings Ltd filed Critical Nchain Holdings Ltd
Publication of SG11202000808WA publication Critical patent/SG11202000808WA/en

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
    • H04L9/3252—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
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • 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
    • H04L9/3236—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 cryptographic hash functions
    • 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
    • H04L9/3236—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 cryptographic hash functions
    • H04L9/3239—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 cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
    • 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
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/46—Secure multiparty computation, e.g. millionaire problem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Saccharide Compounds (AREA)
SG11202000808WA 2017-08-15 2018-08-13 Computer-implemented method of generating a threshold vault SG11202000808WA (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GBGB1713064.2A GB201713064D0 (en) 2017-08-15 2017-08-15 Computer-implemented methods and systems
IB2017054961 2017-08-15
IB2017055497 2017-09-12
GBGB1714660.6A GB201714660D0 (en) 2017-08-15 2017-09-12 Computer-implemented methods and systems
IB2017057782 2017-12-11
PCT/IB2018/055604 WO2019034951A1 (en) 2017-08-15 2018-07-26 METHOD AND SYSTEM FOR DIGITAL THRESHOLD SIGNATURE
PCT/IB2018/056094 WO2019034986A1 (en) 2017-08-15 2018-08-13 METHOD USED BY DISTRIBUTED SAFE GENERATION COMPUTER

Publications (1)

Publication Number Publication Date
SG11202000808WA true SG11202000808WA (en) 2020-02-27

Family

ID=67702926

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202000808WA SG11202000808WA (en) 2017-08-15 2018-08-13 Computer-implemented method of generating a threshold vault

Country Status (7)

Country Link
US (2) US11381389B2 (ja)
EP (2) EP3669491B1 (ja)
JP (2) JP7202358B2 (ja)
KR (2) KR102627049B1 (ja)
SG (1) SG11202000808WA (ja)
TW (2) TWI822693B (ja)
WO (1) WO2019034986A1 (ja)

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CN116865957A (zh) * 2023-07-04 2023-10-10 北京邮电大学 一种量子安全多方计算系统

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US10892891B2 (en) * 2019-03-13 2021-01-12 Digital 14 Llc System, method, and computer program product for zero round trip secure communications based on two noisy secrets
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US11451406B2 (en) * 2019-04-04 2022-09-20 Moac Blockchain Tech Inc Cross-chain messaging and message validation
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US10790990B2 (en) * 2019-06-26 2020-09-29 Alibaba Group Holding Limited Ring signature-based anonymous transaction
CN110457936B (zh) * 2019-07-01 2020-08-14 阿里巴巴集团控股有限公司 数据交互方法、装置和电子设备
CN112543103A (zh) * 2019-09-23 2021-03-23 百度在线网络技术（北京）有限公司 账户地址的生成方法和校验方法、装置、设备和介质
CN111064557A (zh) * 2019-12-25 2020-04-24 杭州安司源科技有限公司 一种分布式托管的数字货币门限签名密钥分发方法
CN113129001B (zh) * 2019-12-31 2023-02-17 上海证锘信息科技有限公司 面向区块链跨链和资产托管的抗量子攻击门限签名方法
GB2597123B (en) * 2020-05-14 2023-08-30 Hung Hung Chiu A method for creating a hierarchical threshold signature digital asset wallet
CN113746623B (zh) * 2020-05-28 2023-03-24 华为技术有限公司 一种门限密钥验证方法及相关设备
US11621834B2 (en) * 2020-06-15 2023-04-04 Acronis International Gmbh Systems and methods for preserving data integrity when integrating secure multiparty computation and blockchain technology
GB2597539A (en) * 2020-07-28 2022-02-02 Nchain Holdings Ltd Generating shared private keys
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GB2598112A (en) * 2020-08-18 2022-02-23 Nchain Holdings Ltd Threshold signatures
GB2600684A (en) * 2020-10-28 2022-05-11 Nchain Holdings Ltd Identifying denial-of-service attacks
CN112635010B (zh) * 2020-12-28 2023-07-07 扬州大学 基于双区块链的边缘计算下数据存储与共享方法
CN112906038B (zh) * 2021-03-26 2023-04-07 成都卫士通信息产业股份有限公司 基于sm9密钥的门限化处理方法、装置、设备及存储介质
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CN116760547A (zh) * 2023-08-21 2023-09-15 湖南湘江树图信息科技创新中心有限公司 分布式私钥管理方法及系统

Also Published As

Publication number Publication date
JP2023024683A (ja) 2023-02-16
TW202403575A (zh) 2024-01-16
KR102627049B1 (ko) 2024-01-19
JP2020532168A (ja) 2020-11-05
EP3669491B1 (en) 2024-02-07
CN110999207A (zh) 2020-04-10
US11381389B2 (en) 2022-07-05
EP3669491A1 (en) 2020-06-24
EP4325770A2 (en) 2024-02-21
TWI822693B (zh) 2023-11-21
KR20200035280A (ko) 2020-04-02
WO2019034986A1 (en) 2019-02-21
US20200213099A1 (en) 2020-07-02
US20230013158A1 (en) 2023-01-19
KR20240011260A (ko) 2024-01-25
TW201921888A (zh) 2019-06-01
EP4325770A3 (en) 2024-04-24
JP7202358B2 (ja) 2023-01-11

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