SG11202009924RA - Methods and devices for cryptographic key management based on blockchain system - Google Patents

Methods and devices for cryptographic key management based on blockchain system

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Publication number
SG11202009924RA
SG11202009924RA SG11202009924RA SG11202009924RA SG11202009924RA SG 11202009924R A SG11202009924R A SG 11202009924RA SG 11202009924R A SG11202009924R A SG 11202009924RA SG 11202009924R A SG11202009924R A SG 11202009924RA SG 11202009924R A SG11202009924R A SG 11202009924RA
Authority
SG
Singapore
Prior art keywords
methods
devices
key management
cryptographic key
blockchain system
Prior art date
Application number
SG11202009924RA
Inventor
Jiayi Shao
Original Assignee
Alipay Hangzhou Inf Tech Co 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 Alipay Hangzhou Inf Tech Co Ltd filed Critical Alipay Hangzhou Inf Tech Co Ltd
Publication of SG11202009924RA publication Critical patent/SG11202009924RA/en

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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
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0827—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving distinctive intermediate devices or communication paths
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/23—Updating
    • G06F16/2379—Updates performed during online database operations; commit processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3825—Use of electronic signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/02—Banking, e.g. interest calculation or account maintenance
    • 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
    • H04L9/06—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
    • H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
    • 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
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key 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
    • H04L9/30—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
    • H04L9/3236—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
    • H04L9/32—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
    • H04L9/3297—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 time stamps, e.g. generation of time stamps
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q2220/00—Business processing using cryptography

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Accounting & Taxation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Power Engineering (AREA)
  • Data Mining & Analysis (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Technology Law (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Lock And Its Accessories (AREA)
SG11202009924RA 2019-11-29 2019-11-29 Methods and devices for cryptographic key management based on blockchain system SG11202009924RA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/121942 WO2020098815A2 (en) 2019-11-29 2019-11-29 Methods and devices for cryptographic key management based on blockchain system

Publications (1)

Publication Number Publication Date
SG11202009924RA true SG11202009924RA (en) 2020-11-27

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Application Number Title Priority Date Filing Date
SG11202009924RA SG11202009924RA (en) 2019-11-29 2019-11-29 Methods and devices for cryptographic key management based on blockchain system

Country Status (6)

Country Link
US (1) US11477013B2 (en)
EP (1) EP3777006B1 (en)
CN (1) CN111386673A (en)
SG (1) SG11202009924RA (en)
TW (1) TWI768403B (en)
WO (1) WO2020098815A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112235278B (en) * 2020-10-10 2022-03-25 杭州溪塔科技有限公司 Method and device for monitoring address information of trader and electronic equipment
CN112712357A (en) * 2020-12-30 2021-04-27 普华云创科技(北京)有限公司 Multi-mechanism multi-chain multi-currency multi-account private key management method and system
CN112819467B (en) * 2021-02-23 2024-09-06 中国信息通信研究院 Privacy transaction method, device and system
CN113259493B (en) * 2021-07-07 2021-10-15 深圳高灯计算机科技有限公司 Ukey information acquisition method, device, equipment and storage medium based on Ukey cabinet
CN114614991B (en) * 2022-03-11 2023-12-26 国网浙江省电力有限公司电力科学研究院 Block chain automatic settlement method and system suitable for small micro-load aggregate response
CN115086041A (en) * 2022-06-16 2022-09-20 北京天融信网络安全技术有限公司 Account management method and device, electronic equipment and computer readable storage medium

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5892900A (en) * 1996-08-30 1999-04-06 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
JPH08297638A (en) * 1995-04-26 1996-11-12 Nippon Telegr & Teleph Corp <Ntt> User authentication system
JP3629516B2 (en) * 2000-11-02 2005-03-16 インターナショナル・ビジネス・マシーンズ・コーポレーション Proxy server, electronic signature system, electronic signature verification system, network system, electronic signature method, electronic signature verification method, and storage medium
CN101552018A (en) 2002-04-17 2009-10-07 松下电器产业株式会社 System and device for inputting/outputting information and managing key
US7328243B2 (en) * 2002-10-31 2008-02-05 Sun Microsystems, Inc. Collaborative content coherence using mobile agents in peer-to-peer networks
US6886096B2 (en) * 2002-11-14 2005-04-26 Voltage Security, Inc. Identity-based encryption system
GB2415064B (en) * 2004-06-10 2008-01-09 Symbian Software Ltd Computing device with a process-based keystore and method for operating a computing device
US7627125B2 (en) * 2005-06-23 2009-12-01 Efunds Corporation Key loading systems and methods
CN1859086B (en) * 2005-12-31 2010-06-09 华为技术有限公司 Content grading access control system and method
CN103797500A (en) * 2011-06-03 2014-05-14 维萨国际服务协会 Virtual wallet card selection apparatuses, methods and systems
US9710807B2 (en) * 2011-08-18 2017-07-18 Visa International Service Association Third-party value added wallet features and interfaces apparatuses, methods and systems
US20140254796A1 (en) * 2013-03-08 2014-09-11 The Chinese University Of Hong Kong Method and apparatus for generating and/or processing 2d barcode
CN104065477A (en) * 2013-03-20 2014-09-24 东方斯泰克信息技术研究院（北京）有限公司 Design and realization method for CPK user ID card generating machine
US20150120569A1 (en) * 2013-10-31 2015-04-30 Bitgo, Inc. Virtual currency address security
JP2015065495A (en) 2013-09-24 2015-04-09 ルネサスエレクトロニクス株式会社 Encryption key supply method, semiconductor integrated circuit and encryption key management device
US11164164B2 (en) * 2014-05-15 2021-11-02 Uphold Global Foundation System and method for converting cryptocurrency to virtual assets whose value is substantiated by a reserve of assets
DE102015210734B4 (en) * 2014-10-31 2021-03-04 Hewlett Packard Enterprise Development Lp MANAGEMENT OF CRYPTOGRAPHIC KEYS
CN104850795B (en) 2015-05-25 2018-08-21 上海柯力士信息安全技术有限公司 A kind of key management system and the method for changing account information
US10992469B2 (en) * 2015-07-14 2021-04-27 Fmr Llc Seed splitting and firmware extension for secure cryptocurrency key backup, restore, and transaction signing platform apparatuses, methods and systems
US20180191503A1 (en) * 2015-07-14 2018-07-05 Fmr Llc Asynchronous Crypto Asset Transfer and Social Aggregating, Fractionally Efficient Transfer Guidance, Conditional Triggered Transaction, Datastructures, Apparatuses, Methods and Systems
US10461940B2 (en) * 2017-03-10 2019-10-29 Fmr Llc Secure firmware transaction signing platform apparatuses, methods and systems
US10257171B2 (en) * 2015-09-04 2019-04-09 Ca, Inc. Server public key pinning by URL
EP3348019A1 (en) * 2015-09-11 2018-07-18 Aware, Inc. Biometric verification of a blockchain database transaction contributor
KR101637854B1 (en) * 2015-10-16 2016-07-08 주식회사 코인플러그 Certificate issuance system and method based on block chain, certificate authentication system and method based on block chain
JP6293716B2 (en) * 2015-11-10 2018-03-14 株式会社アメニディ Anonymous communication system and method for joining the communication system
US10643203B2 (en) * 2016-04-12 2020-05-05 Digicash Pty Ltd. Secure transaction controller for value token exchange systems
US10346618B1 (en) 2017-03-24 2019-07-09 Amazon Technologies, Inc. Data encryption for virtual workspaces
US11551195B2 (en) * 2017-07-18 2023-01-10 Tata Consultancy Services Limited Systems and methods for providing services to smart devices connected in an IoT platform
US11227284B2 (en) * 2017-12-13 2022-01-18 Mastercard International Incorporated Method and system for consumer-initiated transactions using encrypted tokens
JP6852003B2 (en) * 2018-03-07 2021-03-31 株式会社東芝 Information management devices, authentication devices, information management systems, information management methods, and computer programs
SG11202010123UA (en) * 2018-05-15 2020-11-27 Kelvin Zero Inc Systems, methods, and devices for secure blockchain transaction and subnetworks
CN108647105B (en) * 2018-05-22 2022-02-01 创新先进技术有限公司 Idempotent control method, device and system in system switching process
CN109063027A (en) * 2018-07-16 2018-12-21 阿里巴巴集团控股有限公司 A kind of method and device for business processing
CN110020857A (en) * 2019-02-27 2019-07-16 阿里巴巴集团控股有限公司 A kind of method and device for storing, calling block chain account private key
TWM584934U (en) * 2019-05-02 2019-10-11 歐生全科技股份有限公司 Intelligent wallet apparatus
TWM583081U (en) * 2019-05-31 2019-09-01 叡廷股份有限公司 Compatible Key Management System
SG11202006407QA (en) * 2019-07-02 2020-08-28 Alibaba Group Holding Ltd System and method for creating decentralized identifiers

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Publication number Publication date
EP3777006A4 (en) 2021-03-17
WO2020098815A3 (en) 2020-10-08
US11477013B2 (en) 2022-10-18
TW202129522A (en) 2021-08-01
CN111386673A (en) 2020-07-07
US20210167952A1 (en) 2021-06-03
TWI768403B (en) 2022-06-21
EP3777006A2 (en) 2021-02-17
WO2020098815A2 (en) 2020-05-22
EP3777006B1 (en) 2022-08-24

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