SG11202112441PA - Methods and devices for public key management using a blockchain - Google Patents

Methods and devices for public key management using a blockchain

Info

Publication number
SG11202112441PA
SG11202112441PA SG11202112441PA SG11202112441PA SG11202112441PA SG 11202112441P A SG11202112441P A SG 11202112441PA SG 11202112441P A SG11202112441P A SG 11202112441PA SG 11202112441P A SG11202112441P A SG 11202112441PA SG 11202112441P A SG11202112441P A SG 11202112441PA
Authority
SG
Singapore
Prior art keywords
blockchain
methods
devices
public key
key management
Prior art date
Application number
SG11202112441PA
Inventor
Craig Steven Wright
Wei Zhang
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 SG11202112441PA publication Critical patent/SG11202112441PA/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
    • H04L9/3263—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • 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
    • H04L9/32—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
    • H04L9/3263—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • H04L9/3268—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
    • 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
    • H04L9/3247—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
    • H04L9/50—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)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Storage Device Security (AREA)
SG11202112441PA 2019-05-10 2020-05-05 Methods and devices for public key management using a blockchain SG11202112441PA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1906637.2A GB2583767A (en) 2019-05-10 2019-05-10 Methods and devices for public key management using a blockchain
PCT/IB2020/054259 WO2020229947A1 (en) 2019-05-10 2020-05-05 Methods and devices for public key management using a blockchain

Publications (1)

Publication Number Publication Date
SG11202112441PA true SG11202112441PA (en) 2021-12-30

Family

ID=67384537

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202112441PA SG11202112441PA (en) 2019-05-10 2020-05-05 Methods and devices for public key management using a blockchain

Country Status (8)

Country Link
US (1) US20220094542A1 (en)
EP (2) EP3966997B1 (en)
JP (1) JP2022532578A (en)
KR (1) KR20220006097A (en)
CN (1) CN113950801A (en)
GB (1) GB2583767A (en)
SG (1) SG11202112441PA (en)
WO (1) WO2020229947A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110601851B (en) * 2019-09-12 2021-06-04 腾讯科技（深圳）有限公司 Method, apparatus, medium, and device for replacing identity credentials in a blockchain network
GB2594684A (en) 2020-02-19 2021-11-10 Nchain Holdings Ltd Layered network
SE545490C2 (en) * 2021-02-11 2023-09-26 Wone Sagl Methods, module and blockchain for distributed public keystore
EP4054116A1 (en) * 2021-03-05 2022-09-07 Siemens Aktiengesellschaft Ecosystem exchanging information about esg data of a product related entity
GB2607618A (en) * 2021-06-09 2022-12-14 Nchain Licensing Ag Computer-implemented method and system
WO2024117830A1 (en) * 2022-11-30 2024-06-06 히포크랏다오 아이앤씨 Method and device for supporting secure medical data transactions on basis of blockchain in communication system
CN116886319A (en) * 2023-09-08 2023-10-13 海马云（天津）信息技术有限公司 Certificate verification method and device and communication equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201607477D0 (en) * 2016-04-29 2016-06-15 Eitc Holdings Ltd A method and system for controlling the performance of a contract using a distributed hash table and a peer to peer distributed ledger
KR101799343B1 (en) * 2016-05-16 2017-11-22 주식회사 코인플러그 Method for using, revoking certificate information and blockchain-based server using the same
DE102016215917A1 (en) * 2016-08-24 2018-03-01 Siemens Aktiengesellschaft Secured processing of a credential request
CN106372941B (en) * 2016-08-31 2019-07-16 江苏通付盾科技有限公司 Based on the ca authentication management method of block chain, apparatus and system
US10848322B2 (en) * 2017-03-24 2020-11-24 Cable Television Laboratories, Inc System and method for distributed PKI root
CN107592293A (en) * 2017-07-26 2018-01-16 阿里巴巴集团控股有限公司 The means of communication, digital certificate management method, device and electronic equipment between block chain node
CN108964924B (en) * 2018-07-24 2020-06-05 腾讯科技（深圳）有限公司 Digital certificate verification method and device, computer equipment and storage medium
CN109617698B (en) * 2019-01-09 2021-08-03 腾讯科技（深圳）有限公司 Method for issuing digital certificate, digital certificate issuing center and medium

Also Published As

Publication number Publication date
EP4312399A2 (en) 2024-01-31
CN113950801A (en) 2022-01-18
EP3966997A1 (en) 2022-03-16
EP4312399A3 (en) 2024-02-14
JP2022532578A (en) 2022-07-15
US20220094542A1 (en) 2022-03-24
GB201906637D0 (en) 2019-06-26
KR20220006097A (en) 2022-01-14
GB2583767A (en) 2020-11-11
WO2020229947A1 (en) 2020-11-19
EP3966997B1 (en) 2024-02-07

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