CN112100635B - Law enforcement return system and method based on intelligent contract and workflow architecture - Google Patents

Law enforcement return system and method based on intelligent contract and workflow architecture Download PDF

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CN112100635B
CN112100635B CN202010979863.3A CN202010979863A CN112100635B CN 112100635 B CN112100635 B CN 112100635B CN 202010979863 A CN202010979863 A CN 202010979863A CN 112100635 B CN112100635 B CN 112100635B
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information
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孙圣力
邵童
李青山
司华友
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Nanjing Boya Blockchain Research Institute Co ltd
Boya Chain Beijing Technology Co ltd
Peking University
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Boya Chain Beijing Technology Co ltd
Peking University
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Abstract

The invention provides a law enforcement and returning system and a method based on intelligent contract and workflow architecture, wherein the law enforcement and returning system comprises: the data storage layer comprises a business information database and a blockchain system; the interface realization layer comprises a workflow management module and a block link port platform; the business logic layer is used for receiving and processing information submitted by a court, a bank and a victim based on business rules defined by the workflow management module to form a law enforcement and return workflow, and interacting with the block chain system through the block link port platform to realize data uplink, authority verification, data reading and fund return in the running process of the law enforcement and return workflow; the participant interaction layer is used for providing information input, inquiry and display for the user and comprises a court law enforcement and cashing management system, a bank law enforcement and cashing management system and a victim interaction system.

Description

Law enforcement return system and method based on intelligent contract and workflow architecture
Technical Field
The invention relates to the technical field of information processing, in particular to a law enforcement and returning system and method based on integration of intelligent contracts and workflow technology.
Background
With the development of socioeconomic performance, the demand for business cooperation modes across organizations and across fields is increasing, and many business scenes need to finish business processing based on the cooperation of all participating organizations. The traditional processing mode of the service scene is usually completed by cooperation of mutually independent closed systems which are different from each other in each participating mechanism.
In the existing cross-mechanism cooperation service scene, each participating mechanism is generally confirmed through on-line processing and off-line manual flow. Even if each participating mechanism makes business rules and flows in advance, if one participating mechanism does not process according to the business contract rules and flows, other participating mechanisms cannot know the business rules and flows, so that business processing data cooperated across mechanisms is not credible. In addition, the existing service processing systems of all the participating institutions are independent, related data processing information is difficult to effectively circulate among all the participating institutions, and even the related data processing information can be transmitted in an off-line manual mode.
On the other hand, the business processing process may involve the key business element information such as unstructured data such as images, documents, videos and the like, once the business processing system of the participating mechanism which cooperates across the mechanism is attacked, the business information is leaked, even the business processing process flow is tampered, the business processing data is lost and the like, and the usability and safety problems of the business processing system are caused.
Law enforcement is also a typical cross-agency transaction. Law enforcement returns and relates to monetary transactions such as money release, and the execution process is carried out on three parties of banks, courts and victims (victims), and in the returning process, disputes caused by improper flows need to be avoided on one hand, and the possibly-occurring greedy phenomenon in each returning link needs to be prevented on the other hand. The traditional centralization method is to perform centralized deployment and centralized management on returned data, wherein the returned data is stored in a traditional database, and the security and the non-falsifiability of the data are challenged greatly; in addition, because the returning process is not subjected to flow and automatic deployment, the main bodies of all the parties need to be repeatedly communicated and confirmed in the returning execution process, so that the coordination and communication cost is greatly increased.
Disclosure of Invention
In order to solve at least one of the above technical problems, the first aspect of the present invention provides a law enforcement and returning system based on integration of intelligent contracts and workflow technology, which has the following detailed technical scheme:
a law enforcement return system based on intelligent contract and workflow architecture, comprising:
the data storage layer comprises a business information database and a block chain system;
the interface implementation layer comprises a workflow management module and a block link port platform;
the business logic layer receives and processes information submitted by courts, banks and victims based on business rules defined by the workflow management module to form a law enforcement return workflow, and interacts with the blockchain system through the blockchain interface platform to realize data uplink, authority verification, data reading and fund return in the running process of the law enforcement return workflow;
the participant interaction layer is used for providing information input, inquiry and display for each participant, and comprises a court law enforcement and cashing management system, a bank law enforcement and cashing management system and a victim interaction system.
In some embodiments, the blockchain system adopts a chain structure conforming to the basic characteristics of a blockchain, generates and updates data by utilizing a consensus algorithm of distributed nodes, ensures the safety of data transmission and access by utilizing a cryptographic encryption mode, and performs data uplink, authority verification, data reading and money issuing by utilizing an intelligent contract consisting of an automatic script code; the blockchain system includes a court node corresponding to the court law enforcement cashback management system, a bank node corresponding to the bank law enforcement cashback management system, and a victim node corresponding to the victim interaction system.
In some embodiments, a court submits law enforcement return information, checks victim information, submits return execution orders via the court law enforcement return management system; the bank confirms law enforcement and return information, issues return funds and sends a return notice through the bank law enforcement and return management system; the victim submits personal information and views return information via the victim interaction system.
In some embodiments, the workflow management module is based on an activiti workflow architecture; the block link port platform comprises an intelligent contract calling interface, a data uplink interface and an on-chain data reading interface, and all participants in the law enforcement and returning workflow operation process interact with the block chain system through the intelligent contract calling interface, the data uplink interface and the on-chain data reading interface to complete data uplink, authority verification, data reading and fund returning.
In some embodiments, the smart contracts include a data-on-link smart contract, a rights verification smart contract, a data-reading smart contract, and a funds return smart contract.
A second aspect of the present invention provides a law enforcement return method based on intelligent contract and workflow architecture, the law enforcement return method being performed by a law enforcement return system as set forth in any one of the preceding claims, the law enforcement return method comprising:
the court submits law enforcement return information via a court law enforcement return management system, the law enforcement return information being written to the blockchain system at the same time;
after acquiring law enforcement and return information, the bank confirms the information and sends a return notice to the victim through the bank law enforcement and return management system, and the return notice is written into the blockchain system at the same time;
the victim is subjected to the victim interaction system submitting personal information, which is written to the blockchain system at the same time;
the court law enforcement cashier management system acquires the personal information submitted by the victim and performs information verification, and after the information verification is completed, the court law enforcement cashier management system submits a return execution command, wherein the return execution command comprises a return amount and a return date, and the return execution command is simultaneously written into the blockchain system;
the return date expires and the bank automatically issues the return funds to the victim and submits a send return notice, which is written to the blockchain system.
In some embodiments, the victim, upon receipt of the return execution command, may submit an objection request by the victim interaction system, which is written to the blockchain system at the same time.
The law enforcement and returning system and method based on intelligent contract and workflow architecture have the following advantages:
firstly, by utilizing the characteristics of tamper resistance and decentralization of the blockchain, the security of the data can be ensured, the risk of participating in the unauthorized modification of the data of a main body can be avoided, and the trust and the security of law enforcement and return are improved;
secondly, the whole returning flow is organized by a workflow engine and executed according to a preset business rule, so that timeliness of flow operation and business propulsion of each party is ensured.
In a word, the invention solves the problems of the traditional law enforcement and returning system such as opacity, easy tampering and low efficiency caused by multiparty coordination, improves the credibility and the flow of the law enforcement and returning process, and optimizes the development time and the development cost on the other hand.
Drawings
FIG. 1 is a block diagram of a law enforcement return system based on intelligent contract and workflow architecture in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of internal information interaction of a law enforcement return system based on intelligent contract and workflow architecture according to an embodiment of the present invention;
FIG. 3 is a flow chart of a law enforcement return method based on smart contract and workflow architecture according to an embodiment of the invention;
FIG. 4 is a schematic diagram of execution logic of a smart contract during execution of a law enforcement return method based on a smart contract and workflow architecture according to an embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Law enforcement returns and relates to monetary transactions such as money release, and the execution process is carried out on three parties of banks, courts and victims (victims), and in the returning process, disputes caused by improper flows need to be avoided on one hand, and the possibly-occurring greedy phenomenon in each returning link needs to be prevented on the other hand. The traditional centralization method is to perform centralized deployment and centralized management on returned data, wherein the returned data is stored in a traditional database, and the security and the non-falsifiability of the data are challenged greatly; in addition, because the returning process is not subjected to flow and automatic deployment, the main bodies of all the parties need to be repeatedly communicated and confirmed in the returning execution process, so that the coordination and communication cost is greatly increased.
In order to solve the problems of the traditional centralization method in law enforcement and returning, the embodiment of the invention provides a law enforcement and returning system based on an intelligent contract and workflow framework.
As shown in fig. 1 to 2, the law enforcement return system provided by the present invention includes a data storage layer, an interface implementation layer, a service logic layer, and a participant interaction layer.
1. Data storage layer
The data storage layer is used for realizing the storage of data.
Two data storage modes exist in the data storage layer in the invention, which are respectively:
1. the business information database adopts a traditional central database structure and is used for storing data of all participants involved in the law enforcement and returning process, and the data is also a direct source of business auxiliary data required for constructing a workflow in the invention. The participants in the law enforcement and return process comprise three parties including a court, a bank and a victim, and the data storage layer is provided with corresponding business information databases aiming at the three parties, and the business information databases adopt MySQL database architecture.
2. The blockchain system at least comprises a court node, a bank node and a victim node, and intelligent contracts composed of automated script codes are further deployed on the blockchain system.
The block chain system accords with a chain structure of basic characteristics of the block chain, generates and updates data by utilizing a consensus algorithm of distributed nodes, ensures the safety of data transmission and access by utilizing a cryptographic encryption mode, and executes operations such as data uplink, authority verification, data reading, money issuing and the like by utilizing deployed intelligent contracts.
Optionally, the intelligent contracts in the embodiment of the present invention include four types of intelligent contracts, including a data uplink intelligent contract, a rights verification intelligent contract, a data reading intelligent contract, and a money issuing intelligent contract.
2. Interface implementation layer
The interface implementation layer is positioned between the data storage layer and the business logic layer, and comprises:
1. and the workflow management module is used for generating law enforcement and return workflows according to preset business rules, ensuring that law enforcement and return businesses are orderly executed according to the preset business rules, and ensuring timeliness of flow operation and business propulsion of each participant. Namely: the law enforcement return business of the invention is automatically executed according to the deployed workflow architecture.
Optionally, the workflow management module in the embodiment of the present invention is based on an activiti workflow architecture, and is automatically deployed through Springboot, and uses a flow engine, a business model designer, a flow designer, and a flow REST service to perform workflow modeling and labeling.
2. A block link interface platform that provides an interface for each participant to access the blockchain system during law enforcement returns in the present invention. The operation of corresponding court nodes, bank nodes and victim nodes is realized through the blockchain access interface provided by the blockchain interface platform by the court, bank and victim, so that the data uplink, authority verification, data reading, fund returning and the like in the workflow operation process are realized.
Optionally, the blockchain interface provided by the blockchain interface platform in the embodiment of the present invention includes an intelligent contract calling interface, a data uplink interface, and the on-chain data reading interface. All participants in the law enforcement and returning workflow operation process interact with the blockchain system through an intelligent contract calling interface, a data uplink interface and an on-chain data reading interface to complete data uplink, authority verification, data reading and fund returning, and all blockchain operations are executed through intelligent contracts.
3. Business logic layer
The business logic layer is located between the interface implementation layer and the participant interaction layer. On the one hand, the business logic layer receives and processes data submitted by courts, banks and victims based on business rules defined by the workflow management module to form law enforcement and return workflows, so that execution of law enforcement and return works is guaranteed. The business logic layer interacts with the blockchain system through the blockchain interface platform to realize data uplink, authority verification, data reading and fund returning in the running process of the law enforcement and returning workflow.
4. Participant interaction layer
The participant interaction layer comprises a court law enforcement cashback management system, a bank law enforcement cashback management system and a victim interaction system.
And the court, the bank and the victim submit information through the corresponding court law enforcement cashback management system, the bank law enforcement cashback management system and the victim interaction system so as to ensure the smooth execution of the law enforcement and returning workflow and receive the processing results generated by each link of the law enforcement and returning workflow. For example, the court submits law enforcement and return information, checks victim information and submits a return execution command through the court law enforcement and return management system; the bank confirms law enforcement and returns information, issues returned funds and sends a return notice through a bank law enforcement and returns management system; victims are subject to the victim interaction system submitting personal information, viewing return information, submitting objections, etc. Specific implementations of the participant interaction layer include browsers, apps, applets, and the like.
The embodiment of the invention also provides a law enforcement and returning method based on the intelligent contract and workflow framework, which is executed based on the law enforcement and returning system based on the intelligent contract and workflow framework provided by the previous embodiment, as shown in fig. 3 to 4, and in some alternative embodiments, the law enforcement and returning method is executed under the organization of the workflow framework according to the following steps:
step 1, submitting law enforcement return information by a court law enforcement return management system, wherein the law enforcement return information is written into a blockchain system by an intelligent contract.
And step 2, the bank confirms the information after acquiring law enforcement and return information submitted by the court through the bank law enforcement and return management system, and after the information is confirmed without errors, the bank sends a return notice to the victim, and the return notice is written into the blockchain system by the intelligent contract.
And 3, submitting personal information by the victim interaction system after receiving the return notice, wherein the personal information comprises identity information of the victim, bank account information and the like. The personal information submitted by the victim is simultaneously written to the blockchain system by the smart contract.
And 4, acquiring personal information submitted by the victim through the court law enforcement and cashing management system, and carrying out information verification, wherein after the information verification is finished, the court law enforcement and cashing management system submits a return execution command, the return execution command comprises information such as a return amount, a return date and the like, and the return execution command is written into the blockchain system by the intelligent contract.
Optionally, in this step, the bank and the victim need to confirm the return execution command submitted by the court, and go to step 5 after confirmation.
When the victim is objecting to the information in the return execution command, the victim is subjected to the victim interaction system submitting an objection request, which is simultaneously written into the blockchain system. The court verifies after receiving the objection request submitted by the victim and chooses to modify the relevant information in the return execution command according to the verification.
And 5, when the return date expires, the bank automatically issues return funds to the victim and submits and sends a return notice, and the return notice is written into the blockchain system.
The steps 1 to 5 are all configured to be automatically executed in a pre-deployed workflow, so that the whole returning flow is ensured to be executed according to a preset business rule, and timeliness of flow operation and business promotion of each party is ensured.
In addition, all intermediate interaction information (or transaction) generated in the return flow is written into the blockchain system, so that the safety and tamper resistance of data are ensured, and the reliability and fairness of law enforcement return are improved.
The invention mainly relates to four intelligent contracts, namely a data uplink intelligent contract, an authority verification intelligent contract, a data reading intelligent contract and a money issuing intelligent contract. Optionally, the four types of intelligent contracts are written in the solubility language and are respectively implemented in the form of UD, CI, DD, RM functions, and execution logic of part of the functions is as follows:
UD (uplink Data), data uplink): firstly triggering a CI function to carry out authority verification, and writing data uploaded by a node after legal verification on a blockchain after the verification is passed, wherein the uploaded data comprises the following steps: userID (user ID), taskId (task ID), taskKind (task type), taskContent (task content).
CI (Check Identity, rights verification): and the method is responsible for judging whether the current requester is an authorized user, checking that the specific authority is matched with the node required authority, and returning a judging result if the current requester can be accessed.
DD (Download Data, data read): firstly, triggering a CI function to carry out authority verification, and returning detailed information of data after verification is passed, wherein the detailed information comprises a task ID (task ID), a task Kind (task type) and a task content for comparison.
The specific processes of data chaining, rights verification, data reading and cash issuing will be exemplarily described below:
1. data chaining
Processing before data is uplink, adding called intelligent contracts, time stamps, random numbers and the like to the data before signature, hashing the data after splicing, and signing the hashes. The processing mainly converts the data needing to be uplinked into a block chain readable mode, simultaneously binds the identity of a sender and the sending information through signature to carry out identity verification, and finally sends the data to a block chain node. Each node firstly performs authority verification to judge whether the node has the uplink authority, if the node has the authority, the transaction data is broadcasted to the nodes of the alliance chain, then each node packages the transaction which can be processed into blocks as much as possible, and after the consensus stage is finished, the blocks of all the nodes are kept consistent, so that the uplink process is finished.
2. Rights verification
The data in the blockchain only allows three parties of court, bank and victim in the system to read, write and trade, and the identity management system based on PKI, trade or proposal is initiated by means of digital certificates, so that the consensus is achieved by the joint signature verification of the participants. The authority is set for different subjects through the CA mechanism, then the identity is verified through the management of PKI in the transaction request, and the next operation is carried out through the management of PKI.
3. Data read/pull
And sending transaction hash and main body information of the data by the block chain link corresponding to the request direction, judging whether the data has the data pulling authority through authority verification, acquiring complete block data by calling a matched hash value through a block chain access interface, and comparing the complete block data with the data under the chain.
4. Dispensing money
After the objection public deadline of the victim is expired, a request for issuing money is sent to the bank, after the bank receives confirmation, the authority of the transfer API is opened, the return process is automatically controlled by the intelligent contract for issuing money, and the bank transfer API is called for point-to-point transaction for each return record.
The invention has been described above in sufficient detail with a certain degree of particularity. It will be appreciated by those of ordinary skill in the art that the descriptions of the embodiments are merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is indicated by the appended claims rather than by the foregoing description of the embodiments.

Claims (7)

1. A law enforcement return system based on intelligent contracts and workflow architecture, comprising:
the data storage layer comprises a business information database and a block chain system;
the interface implementation layer comprises a workflow management module and a block link port platform;
the business logic layer receives and processes information submitted by courts, banks and victims based on business rules defined by the workflow management module to form a law enforcement and return workflow, and interacts with the blockchain system through the blockchain interface platform to realize data uplink, authority verification, data reading and money issuing in the running process of the law enforcement and return workflow;
the system comprises a participant interaction layer, a bank law enforcement cashing management system and a victim interaction system, wherein the participant interaction layer is used for providing information input, inquiry and display for each participant and comprises a court law enforcement cashing management system, a bank law enforcement cashing management system and a victim interaction system;
the data uplink comprises:
converting the data needing to be uplinked into a block chain readable mode, binding the identity of a sender and the sending information through a signature to perform identity verification, and finally sending the data to a block chain node;
each node firstly performs authority verification to judge whether the block chain has uplink authority, if the block chain has the authority, the transaction data is broadcasted to the nodes of the block chain, then each node packages the transaction into blocks, and after the consensus stage is completed, the packaged block chain is uplink;
the authority verification includes:
the method comprises the steps of realizing initiation of a PKI-based identity management system, transaction or proposal in a digital certificate mode, and achieving consensus through joint signature verification of participants, wherein the participants comprise courts, banks and victims;
setting authority for different subjects through a CA mechanism, verifying the identity through PKI management in a transaction request, and performing the next operation if the identity is verified;
the data reading includes:
the block chain link corresponding to the request direction sends transaction hash and main body information of the data, then judges whether the data has data reading authority through authority verification, and obtains complete block data by calling a matched hash value through a block chain access interface, and then compares the complete block data with the data under the chain;
the issuing money includes:
after the objection public deadline of the victim is expired, a request for issuing money is sent to the bank, after the bank receives confirmation, the authority of the transfer API is opened, the return process is automatically controlled by the intelligent contract for issuing money, and the bank transfer API is called for point-to-point transaction for each return record.
2. A law enforcement return system according to claim 1 wherein:
the block chain system adopts a chain structure conforming to the basic characteristics of the block chain, generates and updates data by utilizing a consensus algorithm of distributed nodes, ensures the safety of data transmission and access by utilizing a cryptographic encryption mode, and executes data uplink, authority verification, data reading and money issuing by utilizing an intelligent contract consisting of automatic script codes;
the blockchain system includes a court node corresponding to the court law enforcement cashback management system, a bank node corresponding to the bank law enforcement cashback management system, and a victim node corresponding to the victim interaction system.
3. A law enforcement return system according to claim 1 wherein:
the court submits law enforcement and return information, checks victim information and submits a return execution command through the court law enforcement and return management system;
the bank confirms law enforcement and return information, issues return funds and sends a return notice through the bank law enforcement and return management system;
the victim submits personal information, review return information, submit objections via the victim interaction system.
4. A law enforcement return system according to claim 2 wherein:
the workflow management module is based on an activiti workflow architecture;
the block link port platform comprises an intelligent contract calling interface, a data uplink interface and a data reading interface on a chain, and all participants in the law enforcement and returning workflow operation process interact with the block chain system through the intelligent contract calling interface, the data uplink interface and the data reading interface on the chain to complete data uplink, authority verification, data reading and money issuing.
5. A law enforcement return system according to claim 4 wherein: the smart contracts include a data-on-link smart contract, a rights verification smart contract, a data-reading smart contract, and a funds return smart contract.
6. A law enforcement return method based on smart contract and workflow architecture, characterized in that it is performed by the law enforcement return system of any of claims 1 to 5, comprising:
the court submits law enforcement return information via a court law enforcement return management system, the law enforcement return information being written to the blockchain system at the same time;
after acquiring law enforcement and return information, the bank confirms the information and sends a return notice to the victim through the bank law enforcement and return management system, and the return notice is written into the blockchain system at the same time;
the victim is subjected to the victim interaction system submitting personal information, which is written to the blockchain system at the same time;
the court law enforcement cashier management system acquires the personal information submitted by the victim and performs information verification, and after the information verification is completed, the court law enforcement cashier management system submits a return execution command, wherein the return execution command comprises a return amount and a return date, and the return execution command is simultaneously written into the blockchain system;
the return date expires and the bank automatically issues the return funds to the victim and submits a send return notice, which is written to the blockchain system.
7. A law enforcement return method according to claim 6 wherein the victim, upon receipt of the return execution command, is subjected to the victim interaction system submitting an objection request, said objection request being written to the blockchain system simultaneously.
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