SG11202006382VA - Computer implemented method and system for obtaining digitally signed data - Google Patents

Computer implemented method and system for obtaining digitally signed data

Info

Publication number
SG11202006382VA
SG11202006382VA SG11202006382VA SG11202006382VA SG11202006382VA SG 11202006382V A SG11202006382V A SG 11202006382VA SG 11202006382V A SG11202006382V A SG 11202006382VA SG 11202006382V A SG11202006382V A SG 11202006382VA SG 11202006382V A SG11202006382V A SG 11202006382VA
Authority
SG
Singapore
Prior art keywords
implemented method
computer implemented
digitally signed
signed data
obtaining digitally
Prior art date
Application number
SG11202006382VA
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 GBGB1800706.2A external-priority patent/GB201800706D0/en
Application filed by Nchain Holdings Ltd filed Critical Nchain Holdings Ltd
Publication of SG11202006382VA publication Critical patent/SG11202006382VA/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
    • H04L9/08—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
    • H04L9/30—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
    • 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
    • H04L9/32—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
    • H04L9/3257—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 blind 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
    • H04L2209/16—Obfuscation or hiding, e.g. involving white box
SG11202006382VA 2018-01-16 2019-01-10 Computer implemented method and system for obtaining digitally signed data SG11202006382VA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IB2018050264 2018-01-16
GBGB1800706.2A GB201800706D0 (en) 2018-01-16 2018-01-16 Computer implemented method and system
PCT/IB2019/050178 WO2019142075A1 (en) 2018-01-16 2019-01-10 Computer implemented method and system for obtaining digitally signed data

Publications (1)

Publication Number Publication Date
SG11202006382VA true SG11202006382VA (en) 2020-08-28

Family

ID=65139055

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202006382VA SG11202006382VA (en) 2018-01-16 2019-01-10 Computer implemented method and system for obtaining digitally signed data

Country Status (9)

Country Link
US (1) US11838426B2 (en)
EP (2) EP4002759A1 (en)
JP (2) JP7316283B2 (en)
KR (1) KR20200108343A (en)
CN (1) CN111615810A (en)
SG (1) SG11202006382VA (en)
TW (2) TW202347988A (en)
WO (1) WO2019142075A1 (en)
ZA (1) ZA202005041B (en)

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US10089178B2 (en) * 2016-02-29 2018-10-02 International Business Machines Corporation Developing an accurate dispersed storage network memory performance model through training
JP7101031B2 (en) * 2018-04-13 2022-07-14 株式会社bitFlyer Blockchain Blockchain network and confirmation method for it
FR3085215B1 (en) * 2018-08-21 2020-11-20 Maxim Integrated Products DEVICES AND METHODS FOR MASKING ECC CRYPTOGRAPHY OPERATIONS
EP3696670A1 (en) * 2019-02-13 2020-08-19 UVUE Limited Distributed computation system and method of operation thereof
GB2610559A (en) * 2021-09-07 2023-03-15 Licensing Ag Nchain Generating shared cryptographic keys
CN114499894B (en) * 2022-04-01 2022-09-09 南京金宁汇科技有限公司 File storage and reading method and system in block chain network
CN114726542B (en) * 2022-04-08 2024-04-09 中国再保险(集团)股份有限公司 Data transmission method and device based on privacy intersection

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JP4018370B2 (en) 2001-10-30 2007-12-05 株式会社東芝 Signature distribution system, program, and method
JP3910529B2 (en) 2002-12-06 2007-04-25 株式会社エヌ・ティ・ティ・データ Electronic voting system
KR20030008182A (en) 2002-12-24 2003-01-24 학교법인 한국정보통신학원 Method of id-based blind signature by using bilinear parings
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US20110213975A1 (en) 2010-03-01 2011-09-01 Alessandro Sorniotti Secret interest groups in online social networks
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US9489522B1 (en) * 2013-03-13 2016-11-08 Hrl Laboratories, Llc Method for secure and resilient distributed generation of elliptic curve digital signature algorithm (ECDSA) based digital signatures with proactive security
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Also Published As

Publication number Publication date
TW201937899A (en) 2019-09-16
EP4002759A1 (en) 2022-05-25
JP2021510954A (en) 2021-04-30
TWI813616B (en) 2023-09-01
TW202347988A (en) 2023-12-01
JP2023115331A (en) 2023-08-18
US11838426B2 (en) 2023-12-05
EP3741081B1 (en) 2021-10-13
ZA202005041B (en) 2022-03-30
KR20200108343A (en) 2020-09-17
JP7316283B2 (en) 2023-07-27
EP3741081A1 (en) 2020-11-25
CN111615810A (en) 2020-09-01
US20210377050A1 (en) 2021-12-02
WO2019142075A1 (en) 2019-07-25

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