SG11202103412PA - Computer implemented system and method for distributing shares of digitally signed data - Google Patents

Computer implemented system and method for distributing shares of digitally signed data

Info

Publication number
SG11202103412PA
SG11202103412PA SG11202103412PA SG11202103412PA SG11202103412PA SG 11202103412P A SG11202103412P A SG 11202103412PA SG 11202103412P A SG11202103412P A SG 11202103412PA SG 11202103412P A SG11202103412P A SG 11202103412PA SG 11202103412P A SG11202103412P A SG 11202103412PA
Authority
SG
Singapore
Prior art keywords
computer implemented
digitally signed
implemented system
signed data
distributing shares
Prior art date
Application number
SG11202103412PA
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
Application filed by Nchain Holdings Ltd filed Critical Nchain Holdings Ltd
Publication of SG11202103412PA publication Critical patent/SG11202103412PA/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
    • H04L9/08—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
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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
    • H04L9/3066—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
    • H04L9/3073—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 involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • 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
    • H04L2209/56—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)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
SG11202103412PA 2018-10-27 2019-10-18 Computer implemented system and method for distributing shares of digitally signed data SG11202103412PA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1817507.5A GB201817507D0 (en) 2018-10-27 2018-10-27 Computer implemented system and method
PCT/IB2019/058902 WO2020084418A1 (en) 2018-10-27 2019-10-18 Computer implemented system and method for distributing shares of digitally signed data

Publications (1)

Publication Number Publication Date
SG11202103412PA true SG11202103412PA (en) 2021-05-28

Family

ID=64560504

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202103412PA SG11202103412PA (en) 2018-10-27 2019-10-18 Computer implemented system and method for distributing shares of digitally signed data

Country Status (9)

Country Link
US (1) US11979492B2 (ja)
EP (2) EP3871365B1 (ja)
JP (2) JP7492508B2 (ja)
KR (1) KR20210082201A (ja)
CN (1) CN112930660A (ja)
GB (1) GB201817507D0 (ja)
SG (1) SG11202103412PA (ja)
TW (1) TWI807125B (ja)
WO (1) WO2020084418A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112532580B (zh) * 2020-10-23 2022-09-06 暨南大学 一种基于区块链及代理重加密的数据传输方法及系统
TWI748925B (zh) * 2021-06-09 2021-12-01 中華電信股份有限公司 端對端加密通訊的金鑰交換系統、方法及其電腦可讀媒介
GB2609906B (en) * 2021-08-09 2023-12-27 Nchain Licensing Ag Generating digital signature shares
GB2609908B (en) * 2021-08-09 2023-10-18 Nchain Licensing Ag Generating Digital signatures
TWI783804B (zh) * 2021-12-01 2022-11-11 英屬開曼群島商現代財富控股有限公司 基於線性整數秘密共享的共享單元生成系統及其方法
TWI787094B (zh) * 2022-03-08 2022-12-11 穎利科研國際事業有限公司 資安防護系統
CN115767515B (zh) * 2022-10-28 2023-07-14 广州声博士声学技术有限公司 一种无基站实时噪声大数据的加密共享方法及系统

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US7239701B1 (en) 2000-05-02 2007-07-03 Murata Machinery Ltd. Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
JP2010200210A (ja) * 2009-02-27 2010-09-09 Mitsubishi Electric Corp 鍵管理機器及び鍵利用システム及び鍵運用システム及び鍵管理方法及び鍵管理プログラム
US9922063B2 (en) * 2009-12-29 2018-03-20 International Business Machines Corporation Secure storage of secret data in a dispersed storage network
JP6571927B2 (ja) * 2014-11-13 2019-09-04 エヌ・ティ・ティ・コミュニケーションズ株式会社 データ保護装置、データ保護方法及びデータ保護プログラム
US9735958B2 (en) 2015-05-19 2017-08-15 Coinbase, Inc. Key ceremony of a security system forming part of a host computer for cryptographic transactions
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
CN108780548B (zh) * 2016-02-23 2022-08-05 区块链控股有限公司 将椭圆曲线加密用于个人装置安全以共享秘密
KR20180116278A (ko) * 2016-02-23 2018-10-24 엔체인 홀딩스 리미티드 안전한 정보 교환과 계층 구조적이고 결정론적인 암호키를 위한 공통 비밀 결정
ES2691254T3 (es) * 2016-05-13 2018-11-26 nChain Holdings Limited Método y sistema para verificar la integridad de un activo digital mediante el uso de una tabla de hash distribuidas y un libro mayor distribuido entre pares
EP3316549B1 (fr) * 2016-10-31 2023-10-11 Idemia Identity & Security France Procédé de contrôle d'identité d'un utilisateur au moyen d'une base de données publique
US10411897B2 (en) * 2017-02-17 2019-09-10 Factom, Inc. Secret sharing via blockchains
US10320565B2 (en) * 2017-02-28 2019-06-11 Certicom Corp. Generating an elliptic curve point in an elliptic curve cryptographic system
GB201705621D0 (en) * 2017-04-07 2017-05-24 Nchain Holdings Ltd Computer-implemented system and method
CN107612934A (zh) * 2017-10-24 2018-01-19 济南浪潮高新科技投资发展有限公司 一种基于密钥分割的区块链移动端计算系统和方法
EP3511851A1 (en) * 2018-01-12 2019-07-17 Siemens Healthcare GmbH Storing and accessing medical datasets on the blockchain

Also Published As

Publication number Publication date
JP2024109714A (ja) 2024-08-14
US11979492B2 (en) 2024-05-07
GB201817507D0 (en) 2018-12-12
CN112930660A (zh) 2021-06-08
EP4376350A3 (en) 2024-07-10
US20220006615A1 (en) 2022-01-06
TWI807125B (zh) 2023-07-01
EP4376350A2 (en) 2024-05-29
JP7492508B2 (ja) 2024-05-29
JP2022504932A (ja) 2022-01-13
WO2020084418A1 (en) 2020-04-30
EP3871365A1 (en) 2021-09-01
TW202029693A (zh) 2020-08-01
EP3871365B1 (en) 2024-05-29
KR20210082201A (ko) 2021-07-02

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