SG11201908890XA - System and method for implementing different types of blockchain contracts - Google Patents

System and method for implementing different types of blockchain contracts

Info

Publication number
SG11201908890XA
SG11201908890XA SG11201908890XA SG11201908890XA SG 11201908890X A SG11201908890X A SG 11201908890XA SG 11201908890X A SG11201908890X A SG 11201908890XA SG 11201908890X A SG11201908890X A SG 11201908890XA
Authority
SG
Singapore
Prior art keywords
international
blockchain
pct
bytecode
blockchain contract
Prior art date
Application number
Inventor
He Sun
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 SG11201908890XA publication Critical patent/SG11201908890XA/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
    • H04L9/50—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
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
    • G06F9/45508—Runtime interpretation or emulation, e g. emulator loops, bytecode interpretation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/30—Creation or generation of source code
    • G06F8/31—Programming languages or programming paradigms
    • G06F8/315—Object-oriented languages
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • 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
    • H04L9/32—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
    • 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

Abstract

Cjava Ox Bytecode ) solidity Blockchai n node M O ON O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 June 2019 (27.06.2019) WI PO I PCT 1111111111111011111111111111110111110101110111111111111101110111111111111011110111111 (10) International Publication Number WO 2019/120316 A2 (51) International Patent Classification: Not classified (21) International Application Number: PCT/CN2019/079712 (22) International Filing Date: 26 March 2019 (26.03.2019) (25) Filing Language: English (26) Publication Language: English (71) Applicant: ALIBABA GROUP HOLDING LIMITED [—/CN]; Fourth Floor, One Capital Place, P.O. Box 847, George Town, Grand Cayman (KY). (72) Inventor: SUN, He; Alibaba Group Legal Department 5/F, Building 3, No. 969 West Wen Yi Road, Yu Hang District, Hangzhou, Zhejiang 311121 (CN). (74) Agent: BEIJING BESTIPR INTELLECTUAL PROP- ERTY LAW CORPORATION; Room 409, Tower B, Ka Wah Building, No. 9 Shangdi 3rd Street, Haidian District, Beijing 100085 (CN). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, 1E, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: SYSTEM AND METHOD FOR IMPLEMENTING DIFFERENT TYPES OF BLOCKCHAIN CONTRACTS FIG. 3 (57) : Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing blockchain contracts are provided. One of the methods includes: obtaining bytecode of a blockchain contract, wherein the bytecode comprises an indicator indicating a type of the blockchain contract; determining a virtual machine corresponding to the type based at least on the indicator; and triggering the determined virtual machine to execute the blockchain contract. [Continued on next page] WO 2019/120316 A2 I Illi I 01111I 011101011111111M0 1 0 111 0 HOIHNOMOHIMINHOHE Published: upon request of the applicant, before the expiration of the time limit referred to in Article 21(2)(a) without international search report and to be republished upon receipt of that report (Rule 48.2(g))
SG11201908890X 2019-03-26 2019-03-26 System and method for implementing different types of blockchain contracts SG11201908890XA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/079712 WO2019120316A2 (en) 2019-03-26 2019-03-26 System and method for implementing different types of blockchain contracts

Publications (1)

Publication Number Publication Date
SG11201908890XA true SG11201908890XA (en) 2019-10-30

Family

ID=66994196

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201908890X SG11201908890XA (en) 2019-03-26 2019-03-26 System and method for implementing different types of blockchain contracts

Country Status (6)

Country Link
US (4) US10866823B2 (en)
EP (1) EP3612930A4 (en)
CN (1) CN111033468B (en)
SG (1) SG11201908890XA (en)
TW (1) TWI720724B (en)
WO (1) WO2019120316A2 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11605059B2 (en) * 2018-08-03 2023-03-14 Sap Se Software system utilizing blockchain for transactions
PL3542494T3 (en) 2018-12-29 2021-08-23 Advanced New Technologies Co., Ltd. System and method for implementing native contract on blockchain
US10733152B2 (en) 2018-12-29 2020-08-04 Alibaba Group Holding Limited System and method for implementing native contract on blockchain
CN111033468B (en) 2019-03-26 2024-04-19 创新先进技术有限公司 System and method for implementing different types of blockchain contracts
GB2583738B (en) * 2019-05-07 2021-05-05 Arm Ip Ltd Content distribution integrity control
CN116757843A (en) * 2019-06-28 2023-09-15 创新先进技术有限公司 System and method for executing different types of blockchain contracts
CN110543407B (en) 2019-08-21 2021-11-05 杭州趣链科技有限公司 Static analysis method for performance of identity intelligent contract
US10783082B2 (en) * 2019-08-30 2020-09-22 Alibaba Group Holding Limited Deploying a smart contract
CN110569110B (en) * 2019-09-11 2022-01-11 杭州秘猿科技有限公司 Block chain method and electronic equipment supporting interactive multiple virtual machines
CN110659907B (en) * 2019-09-24 2021-11-12 北京海益同展信息科技有限公司 Method and device for executing intelligent contracts
US11341192B2 (en) * 2020-01-28 2022-05-24 Sap Se Cross platform collaborative document management system
CN111340491B (en) * 2020-02-25 2023-08-29 中国工商银行股份有限公司 Loose-coupling block chain autonomous transaction method, device and system
CN111338639B (en) * 2020-03-27 2023-05-16 象链网络科技(上海)有限公司 Implementation method of instruction set of intelligent contract virtual machine of block chain
CN111768184A (en) 2020-08-31 2020-10-13 支付宝(杭州)信息技术有限公司 Method for executing intelligent contract and block link point
CN111770202B (en) 2020-08-31 2021-10-29 支付宝(杭州)信息技术有限公司 Method for executing intelligent contract, block chain node and storage medium
CN111768183B (en) * 2020-08-31 2024-04-19 支付宝(杭州)信息技术有限公司 Method for executing intelligent contract, block chain node and storage medium
CN111770204B (en) 2020-08-31 2021-10-22 支付宝(杭州)信息技术有限公司 Method for executing intelligent contract, block chain node and storage medium
CN111770113B (en) * 2020-08-31 2021-07-30 支付宝(杭州)信息技术有限公司 Method for executing intelligent contract, block chain node and node equipment
CN112765676A (en) * 2020-12-03 2021-05-07 杭州趣链科技有限公司 Intelligent contract execution method, intelligent contract execution device and node equipment
CN112527466A (en) * 2020-12-22 2021-03-19 上海万向区块链股份公司 Multi-language intelligent contract compatibility method and system based on EVM and Wasm virtual machine
CN112685136A (en) * 2021-01-07 2021-04-20 腾讯科技（深圳）有限公司 Intelligent contract operation method, device, equipment and storage medium
CN113220326B (en) * 2021-05-11 2022-09-16 支付宝(杭州)信息技术有限公司 Intelligent contract upgrading method and block chain system
CN113973115B (en) * 2021-10-28 2024-02-27 南方电网科学研究院有限责任公司 Custom certificate circulation method and related device thereof
CN113903219A (en) * 2021-11-22 2022-01-07 创盛视联数码科技（北京）有限公司 Display method and device for programming teaching, electronic equipment and storage medium

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6092147A (en) * 1997-04-15 2000-07-18 Sun Microsystems, Inc. Virtual machine with securely distributed bytecode verification
US20050114829A1 (en) * 2003-10-30 2005-05-26 Microsoft Corporation Facilitating the process of designing and developing a project
DE602006004049D1 (en) 2006-09-07 2009-01-15 Research In Motion Ltd Mediated registration of customer applications and service providers with a push content delivery system
US20080115125A1 (en) * 2006-11-13 2008-05-15 Cingular Wireless Ii, Llc Optimizing static dictionary usage for signal compression and for hypertext transfer protocol compression in a wireless network
US9164749B2 (en) * 2008-08-29 2015-10-20 Red Hat, Inc. Differential software provisioning on virtual machines having different configurations
US9274919B2 (en) * 2011-04-29 2016-03-01 Dynatrace Software Gmbh Transaction tracing mechanism of distributed heterogenous transactions having instrumented byte code with constant memory consumption and independent of instrumented method call depth
US9495180B2 (en) * 2013-05-10 2016-11-15 Fireeye, Inc. Optimized resource allocation for virtual machines within a malware content detection system
US9942250B2 (en) * 2014-08-06 2018-04-10 Norse Networks, Inc. Network appliance for dynamic protection from risky network activities
US11159599B2 (en) * 2014-10-10 2021-10-26 Dynatrace Llc Method and system for real-time modeling of communication, virtualization and transaction execution related topological aspects of monitored software applications and hardware entities
US9967334B2 (en) * 2015-03-02 2018-05-08 Dell Products Lp Computing device configuration and management using a secure decentralized transaction ledger
US10466665B2 (en) * 2015-09-17 2019-11-05 Laundry 2.0, LLC System for commercial laundry services and facilities
US10437585B2 (en) 2015-10-23 2019-10-08 Oracle International Corporation Managing highly scalable continuous delivery pipelines
US20170230285A1 (en) * 2015-10-28 2017-08-10 Fractal Industries, Inc. Regulation based switching system for electronic message routing
US11130042B2 (en) 2016-02-02 2021-09-28 Bao Tran Smart device
US11170371B2 (en) 2016-03-03 2021-11-09 Nec Corporation Method for managing data in a network of nodes
AU2017240796A1 (en) 2016-03-31 2018-10-25 Clause, Inc. System and method for creating and executing data-driven legal contracts
US10521775B2 (en) 2016-04-18 2019-12-31 R3 Ltd. Secure processing of electronic transactions by a decentralized, distributed ledger system
US20170345011A1 (en) 2016-05-26 2017-11-30 Hitfin, Inc. System and method executed on a blockchain network
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
WO2018006072A1 (en) * 2016-06-30 2018-01-04 Clause, Inc. Systems and method for forming, storing, managing,and executing contracts
US10755327B2 (en) * 2016-07-18 2020-08-25 Royal Bank Of Canada Distributed ledger platform for vehicle records
EP3479519B1 (en) 2016-08-30 2022-11-02 Commonwealth Scientific and Industrial Research Organisation Dynamic access control on blockchain
WO2018051305A1 (en) 2016-09-19 2018-03-22 Thomson Reuters Global Resources Unlimited Company Systems and methods for interception of smart contracts
EP3542277A4 (en) 2016-11-19 2020-08-05 Costanz, Mario A. Interaction object reconciliation in a public ledger blockchain environment
CN106598579B (en) 2016-12-06 2020-12-25 北京果仁宝科技有限公司 Method and apparatus for integrating dynamic type programming language on blockchain
CN106598549B (en) 2016-12-08 2019-02-01 天津米游科技有限公司 A kind of intelligent contract system and implementation method based on block chain
US11349666B2 (en) * 2017-01-27 2022-05-31 Meta Platforms, Inc. Electronically signing and distributing identification data as a service that provides proof of identity, integrity, validity and origin of data for non-repudiation and ID validation methods
US10243731B2 (en) 2017-01-27 2019-03-26 Accenture Global Solutions Limited Hardware blockchain acceleration
EP3355225B1 (en) 2017-01-31 2022-07-27 Sony Group Corporation Apparatus and method for providing a ethereum virtual device
US10742393B2 (en) * 2017-04-25 2020-08-11 Microsoft Technology Licensing, Llc Confidentiality in a consortium blockchain network
US20180365201A1 (en) 2017-06-14 2018-12-20 Clause, Inc. System and method for compound data-driven contracts and documentation
WO2019023286A1 (en) * 2017-07-24 2019-01-31 Martino William Blockchain-based systems, methods, and apparatus for securing access to information stores
CN107392619B (en) 2017-07-31 2020-12-29 众安信息技术服务有限公司 Intelligent contract processing method and device
US20190050831A1 (en) * 2017-08-03 2019-02-14 Liquineq AG System and method for multi-tiered distributed network transactional database
US10552556B2 (en) * 2017-08-03 2020-02-04 Liquineq AG System and method for performance testing of scalable distributed network transactional databases
US11146380B2 (en) * 2017-08-03 2021-10-12 Parity Technologies Ltd. Methods and systems for a heterogeneous multi-chain framework
US20190066101A1 (en) 2017-08-22 2019-02-28 Sap Se Transaction Platform Providing Unified View on Multiple Heterogeneous Blockchains
CN109426949B (en) 2017-08-29 2021-02-09 华为技术有限公司 Cross-chain transaction method and device
WO2019055585A1 (en) 2017-09-12 2019-03-21 Kadena Llc Parallel-chain architecture for blockchain systems
US20190102163A1 (en) 2017-10-04 2019-04-04 Dispatch Labs, LLC System and Method for a Blockchain-Supported Programmable Information Management and Data Distribution System
US20190108576A1 (en) 2017-10-11 2019-04-11 Capital One Services, Llc Blockchain systems and methods for procurement
US11568505B2 (en) 2017-10-18 2023-01-31 Docusign, Inc. System and method for a computing environment for verifiable execution of data-driven contracts
US20210174360A1 (en) 2017-11-06 2021-06-10 Velo Holdings Limited Blockchain system
CN107833060B (en) * 2017-11-13 2020-12-25 中国银行股份有限公司 Verification method and system for intelligent contract transaction in block chain
US11182780B2 (en) 2017-11-13 2021-11-23 American Express Travel Related Services Company, Inc. Secured account provisioning and payments for NFC-enabled devices
CN107943469B (en) * 2017-11-17 2022-01-11 深圳圣马歌科技有限公司 Intelligent contract issuing method and device
EP3718069B1 (en) 2017-11-30 2024-04-17 Visa International Service Association Blockchain system for confidential and anonymous smart contracts
WO2019113495A1 (en) 2017-12-08 2019-06-13 Solana Labs, Inc. Systems and methods for cryptographic provision of synchronized clocks in distributed systems
GB201720767D0 (en) 2017-12-13 2018-01-24 Barker Trevor Computer-implemented system and method
US11544708B2 (en) 2017-12-29 2023-01-03 Ebay Inc. User controlled storage and sharing of personal user information on a blockchain
CN108833460B (en) 2018-04-10 2021-05-25 平安科技（深圳）有限公司 Music release method and device based on block chain and terminal equipment
US10833865B2 (en) * 2018-04-30 2020-11-10 Dell Products L.P. Blockchain-based method and system for immutable resource allocation in a cloud computing environment
CN108765158B (en) 2018-05-31 2020-11-24 杭州溪塔科技有限公司 Intelligent contract engine system based on block chain and contract execution method thereof
US10896195B2 (en) 2018-07-29 2021-01-19 International Business Machines Corporation Automatic generation of smart contracts
US11182379B2 (en) 2018-08-24 2021-11-23 Oracle International Corporation DAG based methods and systems of transaction processing in a distributed ledger
CN109034814B (en) * 2018-09-14 2020-10-16 百度在线网络技术（北京）有限公司 Intelligent contract processing method and device based on Etheng virtual machine
CN109493042A (en) * 2018-10-24 2019-03-19 南京邮电大学 A kind of intelligent contract possessing access control function is credible to deposit card method and system
PL3542494T3 (en) * 2018-12-29 2021-08-23 Advanced New Technologies Co., Ltd. System and method for implementing native contract on blockchain
CN111033468B (en) * 2019-03-26 2024-04-19 创新先进技术有限公司 System and method for implementing different types of blockchain contracts

Also Published As

Publication number Publication date
US20200019421A1 (en) 2020-01-16
US10949231B2 (en) 2021-03-16
WO2019120316A3 (en) 2020-02-20
US20200142722A1 (en) 2020-05-07
WO2019120316A2 (en) 2019-06-27
US20210042137A1 (en) 2021-02-11
US20210026668A1 (en) 2021-01-28
EP3612930A2 (en) 2020-02-26
TWI720724B (en) 2021-03-01
US11010184B2 (en) 2021-05-18
CN111033468B (en) 2024-04-19
EP3612930A4 (en) 2020-06-24
US10860350B2 (en) 2020-12-08
TW202101198A (en) 2021-01-01
CN111033468A (en) 2020-04-17
US10866823B2 (en) 2020-12-15

Similar Documents

Publication Publication Date Title
SG11201908890XA (en) System and method for implementing different types of blockchain contracts
SG11201908294TA (en) System and method for parallel-processing blockchain transactions
SG11201907346UA (en) Performing a change of primary node in a distributed system
SG11201908387SA (en) Consensus system downtime recovery
SG11201908451UA (en) Method, apparatus, and system for blockchain consensus
SG11201909809VA (en) Processing blockchain data based on smart contract operations executed in a trusted execution environment
SG11201908982QA (en) Managing sensitive data elements in a blockchain network
SG11201908946PA (en) Program execution and data proof scheme using multiple key pair signatures
SG11201908382PA (en) Method and apparatus for processing transaction requests
SG11201903533QA (en) Blockchain smart contract updates using decentralized decision
SG11201909757RA (en) Performing parallel execution of transactions in a distributed ledger system
SG11201908651SA (en) Methods and devices for protecting sensitive data of transaction activity based on smart contract in blockchain
SG11201908853YA (en) System and method for ending view change protocol
SG11201902778UA (en) System and method for information protection
SG11201909630TA (en) Anti-replay attack authentication protocol
SG11201908937RA (en) System and method for managing user interactions with a blockchain
SG11201903438TA (en) System and method for information protection
SG11201908981SA (en) Retrieving public data for blockchain networks using highly available trusted execution environments
SG11201903544SA (en) Testing platform for blockchain networks
SG11201906834SA (en) Achieving consensus among network nodes in a distributed system
SG11201907655SA (en) Blockchain-based transaction processing method and apparatus
SG11201906755VA (en) Digital certificate management method, apparatus, and system
SG11201904942YA (en) Blockchain-based service execution method and apparatus, and electronic device
SG11201909847SA (en) Processing and storing blockchain data under a trusted execution environment
SG11201903141QA (en) Business processing method and apparatus