SG11202112992VA - Hash function attacks - Google Patents

Hash function attacks

Info

Publication number
SG11202112992VA
SG11202112992VA SG11202112992VA SG11202112992VA SG11202112992VA SG 11202112992V A SG11202112992V A SG 11202112992VA SG 11202112992V A SG11202112992V A SG 11202112992VA SG 11202112992V A SG11202112992V A SG 11202112992VA SG 11202112992V A SG11202112992V A SG 11202112992VA
Authority
SG
Singapore
Prior art keywords
hash function
attacks
function attacks
hash
function
Prior art date
Application number
SG11202112992VA
Inventor
Jad Wahab
Wei Zhang
Brock Doiron
Craig 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 SG11202112992VA publication Critical patent/SG11202112992VA/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
    • H04L9/32—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
    • H04L9/3218—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 proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • 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
    • H04L9/50—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)
  • Storage Device Security (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
SG11202112992VA 2019-05-24 2020-05-13 Hash function attacks SG11202112992VA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1907396.4A GB201907396D0 (en) 2019-05-24 2019-05-24 Hash function attacks
PCT/IB2020/054516 WO2020240321A1 (en) 2019-05-24 2020-05-13 Hash function attacks

Publications (1)

Publication Number Publication Date
SG11202112992VA true SG11202112992VA (en) 2021-12-30

Family

ID=67385649

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202112992VA SG11202112992VA (en) 2019-05-24 2020-05-13 Hash function attacks

Country Status (8)

Country Link
US (1) US20220321360A1 (en)
EP (2) EP4333357A3 (en)
JP (1) JP2022534056A (en)
KR (1) KR20220024125A (en)
CN (1) CN113875188A (en)
GB (1) GB201907396D0 (en)
SG (1) SG11202112992VA (en)
WO (1) WO2020240321A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216858A1 (en) * 2019-04-24 2020-10-29 Sony Corporation Blockchain-based crowdsourcing
GB2609193A (en) * 2021-07-19 2023-02-01 Nchain Licensing Ag Enforcing conditions on blockchain transactions
TW202345545A (en) * 2021-12-17 2023-11-16 瑞士商區塊鏈授權股份有限公司 Proving and verifying child key authenticity
GB202202950D0 (en) * 2022-03-03 2022-04-20 British Telecomm Distributed software agents for manafinf a decentralised peer-to-peer storage network
CN115277716A (en) * 2022-06-21 2022-11-01 芯安微众(上海)微电子技术有限公司 Vehicle networking terminal supporting block chain
GB2621858A (en) * 2022-08-24 2024-02-28 Nchain Licensing Ag Blockchain transaction
CN115499135B (en) * 2022-09-14 2024-04-12 山东大学 Ring signature method and system based on symmetric passwords
GB2622630A (en) * 2022-09-23 2024-03-27 Nchain Licensing Ag Enforcing constraints on blockchain transactions
GB2624202A (en) * 2022-11-10 2024-05-15 Nchain Licensing Ag Blockchain transaction
GB2624670A (en) * 2022-11-25 2024-05-29 Nchain Licensing Ag Translucent database

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040174570A1 (en) * 2002-12-02 2004-09-09 Plunkett Richard Thomas Variable size dither matrix usage
US20110055585A1 (en) * 2008-07-25 2011-03-03 Kok-Wah Lee Methods and Systems to Create Big Memorizable Secrets and Their Applications in Information Engineering
US8766778B2 (en) * 2009-04-30 2014-07-01 Certicom Corp. System and method for authenticating RFID tags
US8949989B2 (en) * 2009-08-17 2015-02-03 Qualcomm Incorporated Auditing a device
US20190149337A1 (en) * 2016-04-29 2019-05-16 nChain Holdings Limited Implementing logic gate functionality using a blockchain
US10530585B2 (en) * 2017-06-07 2020-01-07 Bar-Ilan University Digital signing by utilizing multiple distinct signing keys, distributed between two parties
WO2019052184A1 (en) 2017-09-12 2019-03-21 上海蔚来汽车有限公司 Automatic battery changing system for electric vehicle
US11310060B1 (en) * 2018-02-15 2022-04-19 Blockstream Corporation Atomic cross-chain swaps using equivalent secret values
US11509478B2 (en) * 2018-05-08 2022-11-22 Visa International Service Association Password based threshold token generation
US11184157B1 (en) * 2018-06-13 2021-11-23 Amazon Technologies, Inc. Cryptographic key generation and deployment
US11151558B2 (en) * 2018-12-12 2021-10-19 American Express Travel Related Services Company, Inc Zero-knowledge proof payments using blockchain

Also Published As

Publication number Publication date
CN113875188A (en) 2021-12-31
EP4333357A3 (en) 2024-03-20
KR20220024125A (en) 2022-03-03
GB201907396D0 (en) 2019-07-10
JP2022534056A (en) 2022-07-27
EP3966998A1 (en) 2022-03-16
WO2020240321A1 (en) 2020-12-03
US20220321360A1 (en) 2022-10-06
EP4333357A2 (en) 2024-03-06
EP3966998B1 (en) 2024-02-28

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