WO2021035791A1 - 一种基于单点执行合约实现控制其它系统的方法 - Google Patents

一种基于单点执行合约实现控制其它系统的方法 Download PDF

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WO2021035791A1
WO2021035791A1 PCT/CN2019/104645 CN2019104645W WO2021035791A1 WO 2021035791 A1 WO2021035791 A1 WO 2021035791A1 CN 2019104645 W CN2019104645 W CN 2019104645W WO 2021035791 A1 WO2021035791 A1 WO 2021035791A1
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contract
command
execution
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verification
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程文彬
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上海威尔立杰网络科技发展有限公司
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Priority to US17/586,802 priority Critical patent/US11537473B2/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F21/53—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow by executing in a restricted environment, e.g. sandbox or secure virtual machine
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 

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  • the invention relates to the technical field of smart contracts, in particular to a method for realizing control of other systems based on a single-point execution contract.
  • Smart contracts In 1994, computer scientist Nick Sabo published a "Smart Contract” paper proclaiming the birth of the smart contract theory.
  • the Ethereum network went online, creatively integrating smart contracts into the blockchain network, realizing that pure software smart contracts can be trusted in computer networks. But it also brings an extremely prominent problem. Since the Ethereum contract is "executed on the entire network and verified on the entire network", smart contracts are isolated (smart contracts cannot accept uncertain information input, which will cause smart contracts on the blockchain network. Unable to complete verification) In the blockchain network (not sure which machine execution result will be confirmed, it may lead to security issues that the software/hardware system is controlled by other contracts), unable to control other software/hardware systems, especially These software and hardware do not have unified operation control commands.
  • the purpose of the present invention is to provide a method for realizing control of other systems based on a single-point execution contract, so as to solve the problems raised in the background art.
  • a method for realizing control of other systems based on a single point of execution contract includes the following steps:
  • the virtual machine executes the contract code, executes to the line where the command needs to be transparently transmitted, calls the transparent transmission channel command input interface, and transmits the command to the blockchain node;
  • the blockchain node does not do any processing on the command, and calls the pass-through command secondary development service package interface to continue to pass the command downward;
  • the code in the secondary development service package controls other systems according to the business processing flow defined by the contract developer, completes the business processing, and then executes the next step;
  • step E If the execution of step E is abnormal, the execution of the contract call will be terminated, and the contract call transaction will be included in the exception list without any return transaction. After the fault is eliminated, the execution will be manually triggered again;
  • the secondary development service package program receives the relevant transaction confirmation message of the subscription, and starts the business process after the transaction confirmation.
  • the node executing the contract must deploy the service developed by the package.
  • the other system includes software and hardware.
  • the step F also includes the operation of performing result feedback.
  • the present invention also includes a contract verification node process.
  • the specific steps are as follows: 1) Receive the broadcasted contract return transaction, start the contract virtual machine to execute the contract verification process; 2) The virtual machine executes the contract code, and executes it until it needs to be transparent In the line where the command is transmitted, call the transparent transmission channel command to the interface. Because it is a contract verification process, the virtual machine will not pass the transparent transmission command down; 3) The virtual machine continues to execute other codes of the contract for contract verification; 4) The contract is fully verified successfully After that, join the package and continue other transaction verification.
  • the step A also needs to add a transparent transmission channel incoming call interface.
  • the command that needs to be transparently transmitted is custom-designed by the contract developer according to needs.
  • the present invention has the following beneficial effects: 1. On the basis of the published patents, by designing the command transparent transmission channel and the transparent transmission command secondary development package service, the blockchain users can customize Command to operate your own unique software/hardware equipment; 2. Using this method will not affect the verification of the contract execution result, and will not cause the contract execution to pass, but the verification will not pass; 3. Using this method will not cause the cost It happens that the software/hardware accessed by the node is controlled by other contracts issued by users other than the node.
  • Figure 1 is a schematic diagram of contract execution nodes.
  • Figure 2 is a schematic diagram of contract verification nodes.
  • Embodiment 1 Please refer to Figure 1-2, a method for realizing control of other systems based on a single point of execution contract, including the following steps:
  • the virtual machine executes the contract code, executes to the line where the command needs to be transparently transmitted, calls the transparent transmission channel command input interface, and transmits the command to the blockchain node;
  • the blockchain node does not do any processing on the command, and calls the pass-through command secondary development service package (the node executing the contract must deploy the service developed by the package) interface to continue to pass the command downward;
  • the code in the secondary development service package controls other software/hardware according to the business processing flow defined by the contract developer, completes the business processing, and then executes the next step;
  • step 4 If the execution of step 4 is abnormal, the execution of the contract call can be terminated (if the execution result feedback is not required, no feedback is required), the contract call transaction will be included in the exception list, and no return transaction will be generated. After troubleshooting, manually Trigger to execute again.
  • the secondary development service package program receives the relevant transaction confirmation message of the subscription, and starts the business process after the transaction confirmation.
  • the transparent transmission channel is the middle box of the block link point software in Figure 1, and the transparent transmission channel is added to the call interface;
  • a secondary development service package for transparent transmission commands responsible for shielding operating system differences, isolating the controlled system/hardware, providing a transparent transmission command receiving interface, providing secondary development capabilities for docking with other software/hardware, providing blockchain node message subscription and Message receiving secondary development capability.
  • Embodiment 2 On the basis of Embodiment 1: It also includes a contract verification node process. The specific steps are as follows: 1) Receive the broadcasted contract return transaction, start the contract virtual machine to execute the contract verification process; 2) The virtual machine executes the contract code, When executed to the line where the command needs to be transparently transmitted, call the transparent transmission channel command to pass into the interface. Because it is a contract verification process, the virtual machine will not pass the transparent transmission command down; 3) The virtual machine continues to execute other codes of the contract for contract verification; 4) After the contract is fully verified, add the package and continue other transaction verification.

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Abstract

一种基于单点执行合约实现控制其它系统的方法，包含以下步骤：A、合约开发者在编写单点执行合约代码时，将需要透传的命令融入合约代码；B、虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，将命令传递给区块链节点；C、区块链节点不对命令做任何处理，调用透传命令二次开发服务包接口将命令向下继续传递。上述方法通过设计命令透传通道和透传命令二次开发包服务，实现了区块链用户可通过自定义命令操空自己特有的软件/硬件设备；使用本方法，不影响合约执行结果的验证，不会导致合约执行通过，但是验证不通过的情况发生。

Description

一种基于单点执行合约实现控制其它系统的方法 技术领域
本发明涉及智能合约技术领域，具体是一种基于单点执行合约实现控制其它系统的方法。
背景技术
智能合约，1994年计算机科学家尼克萨博发表了《智能合约》论文宣告了智能合约理论的诞生。
在智能合约理论诞生前，智能合约已经在被实际应用，例如从上世纪八九十年年代就被摆上街头的商店自动售货机和银行的自动柜员机，就典型的智能合约应用场景。相关网络的封闭性，和硬件的封闭外壳确保了售货/柜员机程序(智能合约)不可能被随意篡改，进而取得了大家的信任。
2015年，以太坊网络上线，创造性地将智能合约融入到区块链网络中，实现了纯软件智能合约能在计算机网络内能被信任地使用。但是也带来了一个极为突出的问题，由于以太坊合约是“全网执行，全网验证”，智能合约被隔离(智能合约无法接受不确定信息输入，会造成区块链网络上的智能合约无法完成校验)在区块链网络内(不确定哪一台机器执行结果会被确认，可能会导致软件/硬件系统被其它合约控制的安全问题)，无法操控其它软件/硬件系统，特别是这些软件和硬件都没有统一的操作控制命令。
2018年，在申请号为“CN201810978754.2”(公开号为“CN109067759A”)的专利申请中，提出了一种可以“单点执行，全网验证”的智能合约。此合约的提出，让合约控制特定软件/硬件成为可能。
发明概述
技术问题
问题的解决方案
技术解决方案
本发明的目的在于提供一种基于单点执行合约实现控制其它系统的方法，以解 决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种基于单点执行合约实现控制其它系统的方法，包含以下步骤：
A、合约开发者在编写单点执行合约代码时，将需要透传的命令融入合约代码；
B、虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，将命令传递给区块链节点；
C、区块链节点不对命令做任何处理，调用透传命令二次开发服务包接口将命令向下继续传递；
D、二次开发服务包中代码根据合约开发者定义的业务处理流程，操控其它系统，完成业务处理，然后执行下一步；
E、执行完合约后，创建合约执行的返回交易，向整个网络广播；
F、若步骤E执行异常，则终止该次合约调用执行，并将合约调用交易列入异常列表，不产生任何返回交易，等待排除故障后，手动触发再次执行；
G、在合约交易被打包确认后，二次开发服务包程序收到订阅的相关交易确认消息，启动交易确认后业务流程处理。
作为本发明的进一步技术方案：执行合约的节点必须要部署该包二次开发出来的服务。
作为本发明的进一步技术方案：所述其它系统包括软件和硬件。
作为本发明的进一步技术方案：所述步骤F中还包括执行结果反馈的操作。
作为本发明的进一步技术方案：还包括合约验证节点过程，具体步骤如下：1)接到广播的合约返回交易，启动合约虚拟机执行合约验证流程；2)虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，由于是合约验证流程，虚拟机不将要透传命令向下传递；3)虚拟机继续执行合约其它代码进行合约验证；4)合约完全验证成功后，加入打包，并继续其它交易验证。
作为本发明的进一步技术方案：所述步骤A还需要增加透传通道传入调用接口。
作为本发明的进一步技术方案：所述需要透传的命令为由合约开发者根据需要自定义设计。
发明的有益效果
有益效果
与现有技术相比，本发明的有益效果是：1、在已公开专利的基础上，通过设计命令透传通道和透传命令二次开发包服务，实现了区块链用户可通过自定义命令操空自己特有的软件/硬件设备；2、使用本方法，不影响合约执行结果的验证，不会导致合约执行通过，但是验证不通过的情况发生；3、使用本方法，不会导致本节点接入的软件/硬件被其它非本节点用户发布的合约控制的情况发生。
对附图的简要说明
附图说明
图1为合约执行节点示意图。
图2为合约验证节点示意图。
发明实施例
本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1：请参阅图1-2，一种基于单点执行合约实现控制其它系统的方法，包含以下步骤：
A、合约开发者在编写单点执行合约代码时，将需要透传的命令融入合约代码；
B、虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，将命令传递给区块链节点；
C、区块链节点不对命令做任何处理，调用透传命令二次开发服务包(执行合 约的节点必须要部署该包二次开发出来的服务)接口将命令向下继续传递；
D、二次开发服务包中代码根据合约开发者定义的业务处理流程，操控其它软件/硬件，完成业务处理，然后执行下一步；
E、执行完合约后，创建合约执行的返回交易，向整个网络广播。
F、若第4步执行异常，则可以终止该次合约调用执行(若不需要执行结果反馈，则可不反馈)，合约调用交易列入异常列表，不产生任何返回交易，等待排除故障后，手动触发再次执行。
G、在合约交易被打包确认后，二次开发服务包程序收到订阅的相关交易确认消息，启动交易确认后业务流程处理。
在区块链节点软件中增加合约命令(此命令可由合约开发者根据需要自定义)透传通道为图1中的区块链接点软件中间方格，同时增加透传通道传入调用接口；
提供透传命令二次开发服务包，负责屏蔽操作系统差异，隔离被控制系统/硬件，提供透传命令接收接口，提供对接其它软件/硬件的二次开发能力，提供区块链节点消息订阅及消息接收二次开发能力。
实施例2：在实施例1的基础上：还包括合约验证节点过程，具体步骤如下：1)接到广播的合约返回交易，启动合约虚拟机执行合约验证流程；2)虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，由于是合约验证流程，虚拟机不将要透传命令向下传递；3)虚拟机继续执行合约其它代码进行合约验证；4)合约完全验证成功后，加入打包，并继续其它交易验证。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式 仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (7)

  1. 一种基于单点执行合约实现控制其它系统的方法，其特征在于，包含以下步骤：
    合约开发者在编写单点执行合约代码时，将需要透传的命令融入合约代码；
    虚拟机执行合约代码，执行到需要透传命令那一行，调用透传通道命令传入接口，将命令传递给区块链节点；
    区块链节点不对命令做任何处理，调用透传命令二次开发服务包接口将命令向下继续传递；
    二次开发服务包中代码根据合约开发者定义的业务处理流程，操控其它系统，完成业务处理，然后执行下一步；
    执行完合约后，创建合约执行的返回交易，向整个网络广播；
    若步骤E执行异常，则终止该次合约调用执行，并将合约调用交易列入异常列表，不产生任何返回交易，等待排除故障后，手动触发再次执行；
    在合约交易被打包确认后，二次开发服务包程序收到订阅的相关交易确认消息，启动交易确认后业务流程处理。
  2. 根据权利要求1所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，执行合约的节点必须要部署该包二次开发出来的服务。
  3. 根据权利要求1所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，所述其它系统包括软件和硬件。
  4. 根据权利要求1所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，所述步骤F中还包括执行结果反馈的操作。
  5. 根据权利要求1所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，还包括合约验证节点过程，具体步骤如下：1)接到广播的合约返回交易，启动合约虚拟机执行合约验证流程；2)虚拟机执行合约代码，执行到需要透传命令那一行，调用透 传通道命令传入接口，由于是合约验证流程，虚拟机不将要透传命令向下传递；3)虚拟机继续执行合约其它代码进行合约验证；4)合约完全验证成功后，加入打包，并继续其它交易验证。
  6. 根据权利要求5所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，所述步骤A还需要增加透传通道传入调用接口。
  7. 根据权利要求1-6任一所述的一种基于单点执行合约实现控制其它系统的方法，其特征在于，所述需要透传的命令为由合约开发者根据需要自定义设计。
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