SG11201903439RA - System and method for improving security of smart contract on blockchain - Google Patents

System and method for improving security of smart contract on blockchain

Info

Publication number
SG11201903439RA
SG11201903439RA SG11201903439RA SG11201903439RA SG11201903439RA SG 11201903439R A SG11201903439R A SG 11201903439RA SG 11201903439R A SG11201903439R A SG 11201903439RA SG 11201903439R A SG11201903439R A SG 11201903439RA SG 11201903439R A SG11201903439R A SG 11201903439RA
Authority
SG
Singapore
Prior art keywords
international
smart contract
transaction
condition
blockchain
Prior art date
Application number
SG11201903439RA
Other languages
English (en)
Inventor
Zhongxiao Yao
Original Assignee
Alibaba Group Holding 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 Alibaba Group Holding Ltd filed Critical Alibaba Group Holding Ltd
Publication of SG11201903439RA publication Critical patent/SG11201903439RA/en

Links

Classifications

    • 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
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0633—Lists, e.g. purchase orders, compilation or processing
    • G06Q30/0635—Processing of requisition or of purchase orders
    • G06Q30/0637—Approvals
    • 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
    • G06Q20/405—Establishing or using transaction specific rules
    • 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
    • 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
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
    • 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
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G06Q20/3678—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes e-cash details, e.g. blinded, divisible or detecting double spending
    • 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
    • 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
    • G06Q20/388—Payment protocols; Details thereof using mutual authentication without cards, e.g. challenge-response
    • 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
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • 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
    • 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
    • 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
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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
    • 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)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
SG11201903439RA 2018-11-27 2018-11-27 System and method for improving security of smart contract on blockchain SG11201903439RA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/117666 WO2019072283A2 (en) 2018-11-27 2018-11-27 SYSTEM AND METHOD FOR ENHANCING THE SECURITY OF AN INTELLIGENT CONTRACT ON A BLOCK CHAIN

Publications (1)

Publication Number Publication Date
SG11201903439RA true SG11201903439RA (en) 2019-05-30

Family

ID=66100130

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201903439RA SG11201903439RA (en) 2018-11-27 2018-11-27 System and method for improving security of smart contract on blockchain

Country Status (14)

Country Link
US (1) US11354727B2 (ru)
EP (1) EP3545481A4 (ru)
JP (1) JP6864088B2 (ru)
KR (1) KR102254500B1 (ru)
CN (1) CN110291550A (ru)
AU (1) AU2018348324A1 (ru)
BR (1) BR112019008064B1 (ru)
CA (1) CA3040783A1 (ru)
MX (1) MX2019004546A (ru)
PH (1) PH12019500869A1 (ru)
RU (1) RU2744496C2 (ru)
SG (1) SG11201903439RA (ru)
WO (1) WO2019072283A2 (ru)
ZA (1) ZA201902474B (ru)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021523504A (ja) 2018-05-06 2021-09-02 ストロング フォース ティエクス ポートフォリオ ２０１８，エルエルシーＳｔｒｏｎｇ Ｆｏｒｃｅ Ｔｘ Ｐｏｒｔｆｏｌｉｏ ２０１８，Ｌｌｃ エネルギー、コンピュータ、ストレージ、及びその他のリソースの、スポット市場及び先物市場における分散型元帳及びその他のトランザクションの実行を自動化する、機械及びシステムを改善するための方法及びシステム
US11550299B2 (en) 2020-02-03 2023-01-10 Strong Force TX Portfolio 2018, LLC Automated robotic process selection and configuration
US11669914B2 (en) 2018-05-06 2023-06-06 Strong Force TX Portfolio 2018, LLC Adaptive intelligence and shared infrastructure lending transaction enablement platform responsive to crowd sourced information
US11544782B2 (en) 2018-05-06 2023-01-03 Strong Force TX Portfolio 2018, LLC System and method of a smart contract and distributed ledger platform with blockchain custody service
US11842322B2 (en) * 2018-08-22 2023-12-12 Equinix, Inc. Smart contract interpreter
GB2583738B (en) * 2019-05-07 2021-05-05 Arm Ip Ltd Content distribution integrity control
WO2020250206A1 (en) * 2019-06-14 2020-12-17 Ailia Sa Method for the execution of an instance of a smart contract by means of a blockchain
US11249985B2 (en) * 2019-06-15 2022-02-15 Facebook, Inc. Scalable, secure, efficient, and adaptable distributed digital ledger transaction network
US20220292082A1 (en) * 2019-08-19 2022-09-15 Hangzhou Qulian Technology Co., Ltd. Method, apparatus and device for parallel execution of smart contract, and medium
US11893578B2 (en) * 2019-10-11 2024-02-06 Christopher Charles Anderson System and method for online transactions using cryptographic digital tokens
US11982993B2 (en) 2020-02-03 2024-05-14 Strong Force TX Portfolio 2018, LLC AI solution selection for an automated robotic process
EP3955224A1 (en) * 2020-08-14 2022-02-16 Nagravision S.A. Localized betting system and method
CN111767097B (zh) * 2020-08-31 2020-12-11 支付宝(杭州)信息技术有限公司 调用智能合约的方法及装置、电子设备、存储介质
CN112529589B (zh) * 2021-02-10 2021-07-27 北京全息智信科技有限公司 一种长耗时区块链交易的处理方法、装置和电子设备
CN112580112B (zh) * 2021-02-26 2021-06-22 北京全息智信科技有限公司 一种基于全链共识、局部部署的智能合约实现方法、装置
KR102670647B1 (ko) 2022-02-03 2024-05-31 충남대학교 산학협력단 스마트 컨트랙트 개인정보보호 방법 및 이를 이용한 시스템

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9436923B1 (en) 2015-02-26 2016-09-06 Skuchain, Inc. Tracking unitization occurring in a supply chain
US20170011460A1 (en) 2015-07-09 2017-01-12 Ouisa, LLC Systems and methods for trading, clearing and settling securities transactions using blockchain technology
EP3125489B1 (en) 2015-07-31 2017-08-09 BRITISH TELECOMMUNICATIONS public limited company Mitigating blockchain attack
US10114969B1 (en) 2015-08-04 2018-10-30 Jordan White Chaney Ultra-secure blockchain-based electronic information transfer system
WO2017090041A1 (en) 2015-11-24 2017-06-01 Ben-Ari Adi A system and method for blockchain smart contract data privacy
US10230756B2 (en) * 2015-11-25 2019-03-12 International Business Machines Corporation Resisting replay attacks efficiently in a permissioned and privacy-preserving blockchain network
EP3384455A1 (en) 2015-11-30 2018-10-10 Innogy Innovation GmbH Supply medium (e.g. electrical power) transaction agreement system
IL278834B2 (en) 2016-02-23 2023-09-01 Nchain Holdings Ltd Automatic registration and management method for smart contracts based on 'block chain'
WO2017145003A1 (en) 2016-02-23 2017-08-31 nChain Holdings Limited Blockchain-based exchange with tokenisation
US20190122186A1 (en) * 2016-03-31 2019-04-25 Bitflyer, Inc. Hierarchical Network System, And Node And Program Used In Same
CN109564599A (zh) 2016-03-31 2019-04-02 克劳斯公司 用于创建和执行数据驱动法律合同的系统和方法
WO2017173271A1 (en) * 2016-04-01 2017-10-05 Jpmorgan Chase Bank, N.A. Systems and methods for providing data privacy in a private distributed ledger
US10022613B2 (en) 2016-05-02 2018-07-17 Bao Tran Smart device
US10447478B2 (en) 2016-06-06 2019-10-15 Microsoft Technology Licensing, Llc Cryptographic applications for a blockchain system
US11829998B2 (en) 2016-06-07 2023-11-28 Cornell University Authenticated data feed for blockchains
KR101949705B1 (ko) 2016-07-21 2019-02-19 대전보건대학 산학협력단 정맥수액 투약오류 예방을 위한 수액연결관 공기탐지 방법
JP6703918B2 (ja) * 2016-08-31 2020-06-03 ヤフー株式会社 生成プログラム、生成装置及び生成方法
US10740844B2 (en) * 2016-09-26 2020-08-11 Shapeshift Ag System and method of managing trustless asset portfolios
GB2557577A (en) * 2016-10-21 2018-06-27 Cygnetise Ltd Methods and apparatus for recording a change of authorisation state of one or more authorisation agents
US10726343B2 (en) 2016-11-09 2020-07-28 Cognitive Scale, Inc. Performing compliance operations using cognitive blockchains
US10726346B2 (en) 2016-11-09 2020-07-28 Cognitive Scale, Inc. System for performing compliance operations using cognitive blockchains
WO2018111295A1 (en) 2016-12-16 2018-06-21 Hitachi, Ltd. Blockchain monitoring and management
WO2018115567A1 (en) 2016-12-19 2018-06-28 Nokia Technologies Oy Method and apparatus for private data transfer between parties
CN106874087A (zh) 2017-01-25 2017-06-20 上海钜真金融信息服务有限公司 一种区块链智能合约定时任务调度方法
WO2018140913A1 (en) 2017-01-30 2018-08-02 SALT Lending Holdings, Inc. System and method of creating an asset based automated secure agreement
US11411963B2 (en) 2017-02-13 2022-08-09 Nokia Technologies Oy Network access sharing
US10225076B2 (en) * 2017-02-17 2019-03-05 Tianqing Leng Splitting digital promises recorded in a blockchain
US10356102B2 (en) 2017-02-24 2019-07-16 Verizon Patent And Licensing Inc. Permissions using blockchain
CN106980649B (zh) * 2017-02-28 2020-07-10 创新先进技术有限公司 写入区块链业务数据的方法和装置及业务子集合确定方法
CN107341702B (zh) 2017-03-08 2020-06-23 创新先进技术有限公司 一种业务处理的方法及装置
US20180285810A1 (en) * 2017-03-29 2018-10-04 Ripe Technology, Inc. Systems and methods of blockchain transaction recordation in a food supply chain
US20180285971A1 (en) 2017-03-31 2018-10-04 International Business Machines Corporation Management of consumer debt collection using a blockchain and machine learning
US10541818B2 (en) 2017-04-19 2020-01-21 International Business Machines Corporation Decentralized biometric signing of digital contracts
JP6952506B2 (ja) 2017-06-13 2021-10-20 株式会社野村総合研究所 検査装置
CN107330701A (zh) 2017-07-28 2017-11-07 中链科技有限公司 植入智能合约的方法和设备
CN107392618B (zh) 2017-07-28 2021-02-12 苏州朗润创新知识产权运营有限公司 植入智能合约的方法和设备
US10891694B1 (en) * 2017-09-06 2021-01-12 State Farm Mutual Automobile Insurance Company Using vehicle mode for subrogation on a distributed ledger
CN109508981A (zh) 2017-09-15 2019-03-22 富士通株式会社 用于测试智能合约的方法和装置
US11144893B2 (en) * 2017-10-30 2021-10-12 Nec Corporation Method and system for securing smart contracts in blockchains
CN107993069A (zh) 2017-12-13 2018-05-04 清华大学 一种基于区块链网络的在线交易方法及系统
US10896418B2 (en) * 2017-12-29 2021-01-19 Ebay Inc. Secure management of data files using a blockchain
CN108109017A (zh) 2018-01-11 2018-06-01 杭州秘猿科技有限公司 基于区块链智能合约的商品交易系统
RU181439U1 (ru) * 2018-04-06 2018-07-13 Оксана Валерьевна Кириченко Децентрализованная технологическая платформа хранения и обмена данными транзакций в распределенной вычислительной сети
CN108833398B (zh) 2018-06-08 2020-12-15 深圳智链未来科技有限公司 一种区块链智能合约更新方法、装置及设备
KR102121930B1 (ko) * 2018-07-03 2020-06-11 네이버 주식회사 블록체인 기반의 개인 데이터 처리 방법 및 시스템

Also Published As

Publication number Publication date
MX2019004546A (es) 2019-12-09
US20210082033A1 (en) 2021-03-18
CA3040783A1 (en) 2019-04-18
KR20200066261A (ko) 2020-06-09
JP6864088B2 (ja) 2021-04-21
BR112019008064B1 (pt) 2022-07-12
RU2744496C2 (ru) 2021-03-10
PH12019500869A1 (en) 2019-12-02
KR102254500B1 (ko) 2021-05-24
BR112019008064A2 (pt) 2019-11-12
WO2019072283A3 (en) 2019-09-26
AU2018348324A1 (en) 2020-06-11
EP3545481A2 (en) 2019-10-02
RU2019111962A (ru) 2020-10-23
WO2019072283A2 (en) 2019-04-18
US11354727B2 (en) 2022-06-07
RU2019111962A3 (ru) 2020-10-23
EP3545481A4 (en) 2020-02-12
ZA201902474B (en) 2021-06-30
JP2020502617A (ja) 2020-01-23
CN110291550A (zh) 2019-09-27

Similar Documents

Publication Publication Date Title
SG11201903439RA (en) System and method for improving security of smart contract on blockchain
SG11201902778UA (en) System and method for information protection
SG11201903425PA (en) System and method for information protection
SG11201903438TA (en) System and method for information protection
SG11201903533QA (en) Blockchain smart contract updates using decentralized decision
SG11201903419WA (en) System and method for information protection
SG11201908554PA (en) Methods and devices for acquiring and recording tracking information on blockchain
SG11201906838QA (en) Data isolation in a blockchain network
SG11201903526PA (en) A domain name scheme for cross-chain interactions in blockchain systems
SG11201909630TA (en) Anti-replay attack authentication protocol
SG11201908890XA (en) System and method for implementing different types of blockchain contracts
SG11201908794UA (en) Property management system utilizing a blockchain network
SG11201906846YA (en) Data isolation in a blockchain network
SG11201903496PA (en) Cross-chain interactions using a domain name scheme in blockchain systems
SG11201903528SA (en) Executing multi-party transactions using smart contracts
SG11201909950QA (en) Identifying entities in electronic medical records
SG11201903586SA (en) Blockchain data protection based on account note model with zero-knowledge proof
SG11201908651SA (en) Methods and devices for protecting sensitive data of transaction activity based on smart contract in blockchain
SG11201903566XA (en) Regulating blockchain confidential transactions
SG11201908982QA (en) Managing sensitive data elements in a blockchain network
SG11201903584YA (en) Traversing smart contract database through logic map
SG11201904942YA (en) Blockchain-based service execution method and apparatus, and electronic device
SG11201903478WA (en) A domain name management scheme for cross-chain interactions in blockchain systems
SG11201908294TA (en) System and method for parallel-processing blockchain transactions
SG11201910095VA (en) Cross-asset trading within blockchain networks