CN115310993A - Business handling system based on private chain - Google Patents

Business handling system based on private chain Download PDF

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CN115310993A
CN115310993A CN202211243615.8A CN202211243615A CN115310993A CN 115310993 A CN115310993 A CN 115310993A CN 202211243615 A CN202211243615 A CN 202211243615A CN 115310993 A CN115310993 A CN 115310993A
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吕一新
刘雯
乐益矣
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Mrray Chengdu Technology Co ltd
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Abstract

The invention discloses a business handling system based on a private chain, which comprises a server, a plurality of front-end processors and a block chain network based on the private chain, wherein the server is connected with the front-end processors through the private chain; the system provided by the invention directly acquires the credible service data from the credible data provider and completes the certification storing and the verification of the service data through the private chain, and a service administration department does not need to construct block chain nodes and a user does not need to prepare electronic data by self, so that the service handling efficiency is improved, and the system construction cost is reduced; meanwhile, the invention completes the certificate storage and the audit of the service data through the private chain, so that the user can not contact related data completely in the service handling process, and the true transparency and the traceability of the certificate storage and the audit process of the service data and the data safety of the service data can be ensured. Therefore, the data security and privacy of the business data are ensured, and the tracing and the supervision are convenient.

Description

Business handling system based on private chain
Technical Field
The invention relates to the technical field of block chain technology, digital service processing technology and the like, in particular to a service handling system based on a private chain.
Background
With the rapid development of digital economy and the digital transformation in China, more and more government departments and medium-sized and small enterprises begin to provide online business handling for users, however, when users handle business actually, the users are generally required to provide various materials required by the business handling, because related department business systems are independent and data are not communicated with each other, the users need to go to other departments to apply for corresponding materials when handling corresponding business, the handling efficiency is not high, and in addition, for approval business, corresponding auditors are required to audit authenticity and specific contents of the materials provided by the users, and the labor investment cannot be reduced fundamentally.
The block chain technology can provide a relatively credible solution for preventing data from being tampered to a certain extent by virtue of characteristics of decentralization, multi-party consensus, difficulty in tampering, openness and transparency, traceability and the like of the block chain technology; therefore, the block chain technology is applied to online business handling, and has a great development prospect.
For example, in the existing block chain-based online electronic license obtaining technology, application electronic data is filled in through a client, a corresponding electronic license request is generated and sent to a license platform, the license platform obtains corresponding electronic data by analyzing the electronic license request, content identification and classification are carried out on the electronic data to obtain a plurality of node verification information, then the node verification information is sent to corresponding block chain link points for verification, and when the verification passes, corresponding electronic license samples are produced by a verification node according to the electronic data. However, in the prior art, the user needs to prepare the handled electronic data by himself, the handling efficiency is low, meanwhile, each related department needs to cooperate with building of the block chain nodes to check the node check information, so that not only can the system construction cost greatly rise, but also the check process is respectively distributed to a plurality of block chain nodes to be executed, extra communication burden is introduced to the block chain network, and when a large number of users visit, network congestion is caused to the block chain network, and further the whole service handling efficiency and the user experience are influenced.
Or the existing government affair information resource sharing technology based on the block chain provides complete functional modules for various applicants and government affair departments, replaces paper archives through electronic certification, and exchanges information among the departments at a high speed through a network, thereby saving a large amount of manpower and material resources and greatly improving the efficiency; meanwhile, all materials and operations are stored in the block chain, the next department only needs to simply compare the hash value after acquiring the certified hash value, and the inspection process is transparent and open due to the decentralized characteristic of the block chain, so that convenience is provided for social supervision. However, this prior art still requires the user to prepare the electronic document for transaction, and also requires the corresponding government department staff to check the certification material during the transaction process, so the transaction efficiency is low.
In summary, the existing online service handling technology using the block chain technology has the following defects:
(1) In the prior art, a user needs to prepare transacted electronic data by himself and related personnel are required to check the transacted electronic data, so that the business transaction efficiency is influenced;
(2) In the prior art, each relevant department needs to cooperate with building a block chain node to audit materials, so that the cost is high, and particularly for complex services, a huge block chain network needs to be built due to cooperation of a plurality of departments, so that the cost is high, and even the realization is impossible.
(3) The prior art also introduces additional communication burden, and especially when a large number of users are visited, network congestion can be caused, thereby affecting service handling efficiency.
Disclosure of Invention
The invention provides a business handling system based on a private chain, aiming at solving the problems of low business handling efficiency and high cost in the prior art. The system provided by the invention directly obtains the credible service data from the credible data provider and completes the certification storing and the verification of the service data through the private chain, and a service administration department does not need to construct a block chain node and a user does not need to prepare electronic data by self, thereby improving the service handling efficiency and reducing the system construction cost.
The invention is realized by the following technical scheme:
a business handling system based on a private chain comprises a server, a plurality of front-end processors and a block chain network based on the private chain;
wherein the server is configured to: determining a front-end processor providing the trusted materials required by business handling according to a business handling request sent by a user, generating a corresponding service notice, and sending the service notice to the front-end processor providing the trusted materials required by business handling;
the front-end processor is configured to: having data acquisition rights to acquire at least one trusted data from a database of a trusted data provider; after receiving a service notification, acquiring specified trusted data from a database corresponding to a trusted data provider according to first specified content in the service notification, associating a serial number in the service notification with the acquired trusted data after acquiring the specified trusted data, and sending the trusted data after associating the serial number to a specified node in a block chain network according to second specified content in the service notification;
a node in the blockchain network is configured to: and all the credible data related to the same serial number are used as execution parameters of an intelligent contract for executing corresponding business handling approval, the generated approval result is sent to the server after the intelligent contract is executed, and the credible data and the approval result which are used as the execution parameters are respectively written into the block chain.
As a preferred embodiment, the server of the present invention is configured to: when a service handling request sent by a user is received, a serial number corresponding to the service handling request is generated, and part of codes of the serial number are used for indicating the service type of the service handling request contained in the service handling request;
a node in the blockchain network is configured to: and caching the trusted data into a data cache list every time one piece of trusted data is received, monitoring whether the trusted data associated with the same serial number in the data cache list meets the requirement of trusted materials required by corresponding service handling, if so, calling an intelligent contract for carrying out service approval on the service type indicated by the serial number, and transmitting all the trusted data associated with the serial number into the intelligent contract.
As a preferred embodiment, the server of the present invention is configured to: establishing a mapping relation between a port address of each front-end processor and a trusted data type, and generating the first specified content according to a user identity contained in the service handling request and the service type of the request handling service; determining a port address of the front-end processor corresponding to the specified trusted data according to the first specified content and the mapping relation, and sending the generated service notification to the corresponding front-end processor according to the determined port address; the first appointed content comprises the credible data corresponding to the appointed acquired user identity and the credible data type corresponding to the appointed service type requesting to handle the service.
As a preferred embodiment, the server of the present invention is configured to: generating the second specified content according to load balance among all nodes in the block chain network; the second designation includes designating nodes in the blockchain network that meet a load requirement.
As a preferred embodiment, the server of the present invention is configured to: acquiring a public key of an asymmetric encryption key pair generated when the user identity is registered according to the user identity contained in the service handling request, and packaging the public key into the service notification;
the front-end processor is configured to: acquiring appointed trusted data from a database according to the first appointed content in the service notification, and encrypting the acquired trusted data by using a public key in the service notification;
a node in the blockchain network is configured to: when executing the intelligent contract, detecting whether a private key of an asymmetric encryption key pair is transmitted into the intelligent contract, if so, decrypting trusted data serving as an execution parameter by using the private key, otherwise, sending a private key acquisition request to the server to acquire the private key and transmit the private key into the intelligent contract; and in parallel, writing trusted data as an execution parameter into a block chain, and the trusted data written into the block chain being in an undecrypted state.
As a preferred embodiment, the server of the present invention is configured to: after receiving the private key acquisition request, initiating authorization verification of the user identity to the user; and if the authorization verification is passed, transmitting the private key into the intelligent contract through a trusted execution link.
As a preferred embodiment, the authorization verification initiated by the server of the present invention specifically includes: and judging whether the biological characteristic information of the user acquired in real time is matched with the biological characteristic information set when the identity of the user is registered, and if so, passing the authorization verification.
In a preferred embodiment, the biometric information of the present invention includes at least one of fingerprint information, iris information, or face information.
As a preferred embodiment, the nodes in the blockchain network of the present invention are configured to: taking each item of trusted data as an execution parameter to execute the corresponding intelligent contract, and sequentially obtaining an approval certificate and an approval result; respectively writing each item of the credible data, the examination and approval certificate and the examination and approval result into a block chain; the approval certificate is a statistical result of whether each item of trusted data meets corresponding approval conditions in the intelligent contract execution process, and the approval result is determined by the approval certificate to indicate whether corresponding business handling is approved or not.
In a preferred embodiment, the trusted data of the present invention carries the timestamp information of the latest update.
The invention has the following advantages and beneficial effects:
1. compared with the traditional business handling technology, the business handling system based on the private chain directly takes the business administration department as a trusted data provider to provide trusted business data, so that a user does not need to prepare electronic materials required by business handling by himself, the business handling efficiency is improved, and meanwhile, the authenticity of data is ensured by means of credit endorsements of the business administration department; and each relevant business data is respectively stored in the database corresponding to the trusted data provider, and the trusted data provider provides data only under the condition of a business handling request, so that the business handling system provided by the invention does not need to construct a data middlebox to gather all data together, and does not need to add all business governing departments into a block chain in a form of a union chain (namely, block chain equipment does not need to be configured for each business governing department), and the data is all synchronized to the block chain, thereby greatly reducing the difficulty and cost of system construction; meanwhile, the business handling system provided by the invention completes the execution of the process of storing and verifying the business data through the private chain, and only stores the material data required by the current business handling on the private chain, thereby greatly reducing the data throughput and storage burden of the private chain and reducing the system construction cost and operation and maintenance cost.
2. The invention completes the storage and the verification of the business data through the private chain, the verification process is completely executed by the intelligent contract without human participation, so that the user can not contact related data completely in the business handling process, the business handling efficiency can be improved, and the reality and the transparency of the business data and the verification process can be ensured; meanwhile, the state of the node at the current time is handled in the auditing process, and data support is provided for the source tracing afterwards.
3. The invention also utilizes the public key of the asymmetric encryption key pair generated when the user registers the identity to encrypt the credible data, thereby further improving the data security; meanwhile, the decryption process of the encrypted trusted data is only completed in the execution process of the intelligent contract, and the decryption process needs on-line real-time biological feature verification of a user, so that the data security is further improved, and the data leakage is prevented; in addition, the credible data written into the private chain is still in an encrypted state, so that the doubtful worry of a business administration department about data leakage or data abuse risk can be avoided, and the credit cost of system application is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic block diagram of a service handling system according to an embodiment of the present invention.
Fig. 2 is a schematic view of an overall process of business transaction according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an intelligent contract execution flow according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The existing business handling technology based on the block chain has the problems of low business handling efficiency, high cost and the like. Based on this, the embodiment of the invention provides a business handling system based on a private chain. Specifically, as shown in fig. 1, the service handling system provided by the embodiment of the present invention includes a server, a plurality of front-end processors, and a block chain network based on a private chain; wherein, the first and the second end of the pipe are connected with each other,
the server is configured to: the method comprises the steps of determining a front-end processor providing trusted materials required by business handling according to business handling requests sent by users, generating corresponding service notifications, and sending the service notifications to the front-end processor providing the trusted materials required by business handling.
In order to realize that a service administration department directly provides credible service data as a credible data provider, the embodiment of the invention deploys a front-end processor at each credible data provider added into the system, so that the number of the front-end processors is the same as that of the credible data providers added into the system. The front-end processor is configured to: the method comprises the steps of having data acquisition authority for acquiring at least one trusted data from a database of a trusted data provider; specifically, after receiving a service notification, according to first specified content in the service notification, obtaining specified trusted data from a database corresponding to a trusted data provider, after obtaining the specified trusted data, associating a serial number in the service notification with the obtained trusted data, and according to second specified content in the service notification, sending the trusted data after associating the serial number to a specified node in a block chain network.
A node in the blockchain network is configured to: all the credible data associated with the same serial number are used as execution parameters for executing the intelligent contract for corresponding business handling approval, and after the intelligent contract is executed, the generated approval result is sent to the server side; and respectively writing the credible data and the approval result as the execution parameters into the block chain.
The service handling system provided by the embodiment of the invention provides a service handling service for a user by establishing the server, and when the service is handled through the server, the service administration department is used as a trusted data provider to directly provide trusted service data, and the execution of the process of storing and verifying the service data is completed through a private chain. The system provided by the embodiment of the invention directly takes the business administration department as the trusted data provider, so that the electronic materials required by business handling do not need to be prepared by the user, and the business handling efficiency is improved; all the service data are respectively stored in the database of the corresponding trusted data provider (namely, the service administration), and the trusted data provider provides data only when a service handling request is made, so that the system provided by the embodiment of the invention does not need to build a data middleman or a alliance chain (namely, all the service administration are added into a block chain) to gather the data together, thereby greatly reducing the system building difficulty and the system building cost; meanwhile, the system provided by the embodiment of the invention realizes the auditing and the evidence storing of the service data through the private chain, and only the data required by the currently transacted service is stored in the private chain, so that the data throughput, the storage burden and the like of the block chain are greatly reduced, and the construction cost and the operation and maintenance cost of the private chain are reduced.
In addition, the characteristic that the private chain prevents the internal nodes from tampering the data can be used for ensuring the true transparency and traceability of the service materials and the auditing process, and the access authority of the private chain is strictly controlled, so that the user or the server side can not contact the related data completely, and the data safety and privacy of the service data can be ensured.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the server is configured to: and generating a serial number corresponding to the service handling request every time a service handling request sent by a user is received, wherein part of the serial number is used for indicating the service type of the service handling request contained in the service handling request.
A node in the blockchain network is configured to: and when receiving a piece of credible data, caching the credible data into a data cache list, monitoring whether the credible data associated with the same serial number in the data cache list meets the requirement of credible materials required by corresponding business handling, if so, calling an intelligent contract for carrying out business approval on the business type indicated by the serial number, and transmitting all credible data associated with the serial number into the intelligent contract.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the server is configured to: establishing a mapping relation between a port address of each front-end processor and a trusted data type, and generating a first specified task according to a user identity contained in a service handling request and a service type of the request handling service; determining a port address of a front-end processor corresponding to the trusted data according to the first designated task and the mapping relation, and sending the generated service notification to the corresponding front-end processor according to the determined port address; the first appointed content comprises the credible data corresponding to the appointed acquired user identity and the credible data type corresponding to the appointed service type requesting to handle the service.
For example, the business administration is a public security department, and the trusted data provided by the database of the business administration comprises illegal records; the service administration department is a credit investigation organization, and the credible data provided by the database of the credit investigation department is credit records; the mapping relation can be established by defining the attributes of different data in advance to correspond to the service types, determining the service data types included in the service data required by each service transaction and combining the port addresses of each front-end processor.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the server is configured to: generating second specified content according to load balance among all nodes in the block chain network; the second designated content may include nodes in the designated blockchain network that are lightly loaded (i.e., less than a predetermined value loaded).
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the server is configured to: and acquiring a public key of the asymmetric encryption key pair generated when the user identity is registered according to the user identity contained in the service handling request, and encapsulating the public key into the service notice.
The front-end processor is configured to: and according to the first specified content in the service notification, after obtaining specified trusted data from the database, encrypting the obtained trusted data by using a public key in the service notification.
A node in the blockchain network is configured to: when the intelligent contract is executed, whether a private key of the asymmetric encryption key pair is transmitted into the intelligent contract or not is detected, and if the private key is transmitted, the private key is used for decrypting trusted data serving as an execution parameter; otherwise, sending a private key acquisition request to the server to acquire a private key and transmit the private key into the intelligent contract; and in parallel, writing trusted data as execution parameters into the block chain; and the credible data written into the block chain is in an undecrypted state.
The embodiment of the invention carries out encryption communication on the trusted data by adopting the asymmetric encryption technology, and the decryption process of the encrypted trusted data is only completed in the execution process of the intelligent contract, thereby further improving the safety and the reliability of the system.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the front-end processor is configured to: and the encrypted trusted data is calculated by adopting a Hash algorithm, so that the safety of the data is further ensured.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
a node in a blockchain network is configured to: taking each item of credible data as an execution parameter to execute a corresponding intelligent contract, and sequentially obtaining an approval certificate and an approval result; respectively writing all items of trusted data, the examination and approval certificates and the examination and approval results into the block chain; the approval document is a statistical result of whether each item of trusted data meets corresponding approval conditions or not in the execution process of intelligent contract, and the approval result is determined by the approval document so as to indicate whether corresponding business handling is approved or not.
As an optional implementation manner, in the service handling system provided in the embodiment of the present invention:
the server is configured to: after receiving a private key acquisition request, initiating authorization verification of user identity to a user; and if the authorization verification is passed, the private key is transmitted into the intelligent contract through the trusted execution link.
As an optional implementation manner, the authorization verification initiated by the server may specifically be: and judging whether the biological characteristic information of the user acquired in real time is matched with the biological characteristic information set by the user when the user identity is registered, and if so, passing the authorization verification. The biometric information may be, but is not limited to, one or more of fingerprint information, iris information, face information, and the like.
As an alternative embodiment, the trusted data provided by the trusted data provider may be constantly changing since it is closely related to the daily activities and behaviors of the user. Therefore, in order to prevent the situation that in the actual service handling process, after a user sends a service handling request and obtains the trusted data provided by the trusted data provider, the trusted data is updated again, so that the service handling result is inconsistent with the latest situation of the user. The trusted data provided by the trusted data provider carries the latest updated timestamp information, so that the responsibility of each business handling party is clearly defined and can be traced.
Taking government affair handling as an example, the existing block chain-based government affair handling is usually based on a scenario of alliance chain government affair handling, all functional departments are required to be added into the alliance chain as nodes, thus, data sources of all functional departments requiring government affair handling are synchronized to the alliance chain through the configured node devices, under the trend of government affair handling, almost all functional departments need to be configured with block chain devices, the construction cost is huge, and especially, the block chain device is difficult to realize in the regions with underdeveloped economy; moreover, data of each functional department needs to be synchronized to a alliance chain, so that potential data safety hazards exist; therefore, the existing block chain-based government affair handling is difficult to popularize and actually fall to the ground from the aspects of construction cost and data security.
In addition, data sources provided by functional departments for government affairs handling are closely related to daily life activities and behaviors of users and can be continuously updated; therefore, under the trend of government affair handling, if all the functional departments involved in government affair handling are connected into the alliance chain, the handling rate and the storage capacity of the alliance chain can be greatly stressed, and then risks are brought to the stable operation of the whole government affair handling system.
Therefore, the private chain-based business transaction technology provided by the embodiment of the invention starts from the requirement that a user does not need to prepare transaction materials by himself, considers the concerns of the business administration department on system construction cost and data safety, directly takes the business administration department as a trusted data provider to provide trusted business materials, and ensures the trueness of data by virtue of credit endorsements of the business administration department; meanwhile, a service administration department does not need to add a block chain or completely synchronize data to the block chain, so that the system construction cost investment is reduced, and the risk of data leakage or data abuse caused by data transfer or synchronization is avoided. And the trusted data provider provides data only under the condition of service handling requests, and performs log recording when providing data, thereby conveniently and clearly defining the responsibility of each service handling party.
In addition, the execution of the process of storing and verifying the service data is completed through the private chain, the verification process is completely executed by an intelligent contract without human participation, and a user can not contact related data completely in the process of handling the service, so that the handling efficiency of the service can be improved, the true transparency and traceability of the service data and the verification process can be ensured, and the data safety and privacy of the service data can be ensured because the access authority of the private chain is strictly controlled.
The working flow of the business handling system provided by the embodiment of the invention is shown in fig. 2, and comprises the following steps:
step 1, acquiring a service transaction request sent by a user through a server, determining a front-end processor providing trusted materials required by service transaction according to the service request sent by the user, generating a corresponding service notification, and sending the service notification to the front-end processor providing the trusted materials required by service transaction.
And 2, after receiving the service notification, the front-end processor finds the corresponding trusted data provider from the database corresponding to the trusted data provider according to the first specified content in the service notification to acquire the specified trusted data, associates the serial number in the service notification with the acquired trusted data after acquiring the specified trusted data, and sends the trusted data after associating the serial number to the specified node in the block chain network according to the second specified content in the service notification.
And 3, the node takes all the credible data associated with the same serial number as an execution parameter of the intelligent contract for executing the corresponding business transaction approval, sends the generated approval result to the server after the intelligent contract is executed, and respectively writes the credible data and the approval result as the execution parameter into the block chain.
As an optional implementation manner, the process of the node executing the intelligent contract in step 3 is shown in fig. 3, and specifically includes the following steps:
and 3.1, initializing the intelligent contract.
And 3.2, loading the trusted data required by handling the specified service, and writing the trusted data into the block chain.
Step 3.3, detecting whether a private key of the asymmetric encryption key pair is transmitted into the intelligent contract, if so, decrypting each item of trusted data by using the transmitted private key, and then executing step 3.4; otherwise, a private key acquisition request is sent to the server to acquire the private key and transmit the private key into the intelligent contract, and the step 3.3 is repeatedly executed.
And 3.4, checking whether the trusted data meet the approval condition one by one until all the trusted data are checked.
And 3.5, obtaining an approval certificate according to the detection result corresponding to each item of credible data, and writing the approval certificate into the block chain.
And 3.6, determining an approval result of the service appointed by the transaction service identification according to the approval certificate, and writing the approval result into the block chain.
The above-described embodiments are intended to illustrate the objects, aspects and advantages of the present invention in further detail, and it should be understood that the embodiments are merely exemplary embodiments of the present invention and that the disclosure can be implemented in other forms. For example, the division of the modules into only one logical function may be implemented in another way, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the communication connection between the modules may be an indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or in other forms.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
Wherein the integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Claims (10)

1. A business handling system based on a private chain is characterized by comprising a server, a plurality of front-end processors and a block chain network based on the private chain;
wherein the server is configured to: determining a front-end processor providing the trusted materials required by business handling according to a business handling request sent by a user, generating a corresponding service notice, and sending the service notice to the front-end processor providing the trusted materials required by business handling;
the front-end processor is configured to: having data acquisition rights to acquire at least one trusted data from a database of a trusted data provider; after receiving a service notification, acquiring specified trusted data from a database corresponding to a trusted data provider according to first specified content in the service notification, associating a serial number in the service notification with the acquired trusted data after acquiring the specified trusted data, and sending the trusted data associated with the serial number to a specified node in a block chain network according to second specified content in the service notification;
a node in the blockchain network is configured to: and all the credible data related to the same serial number are used as execution parameters of an intelligent contract for executing corresponding business handling approval, the generated approval result is sent to the server after the intelligent contract is executed, and the credible data and the approval result which are used as the execution parameters are respectively written into the block chain.
2. The private chain-based business transaction system of claim 1, wherein the server is configured to: when a service handling request sent by a user is received, a serial number corresponding to the service handling request is generated, and part of the serial number is used for indicating the service type of the service handling request contained in the service handling request;
a node in the blockchain network is configured to: and caching the trusted data into a data cache list every time one piece of trusted data is received, monitoring whether the trusted data associated with the same serial number in the data cache list meets the requirement of trusted materials required by corresponding service handling, if so, calling an intelligent contract for carrying out service approval on the service type indicated by the serial number, and transmitting all the trusted data associated with the serial number into the intelligent contract.
3. The private chain-based business transaction system of claim 1, wherein the server is configured to: establishing a mapping relation between a port address of each front-end processor and a trusted data type, and generating the first specified content according to a user identity contained in the service handling request and the service type of the request handling service; determining a port address of the front-end processor corresponding to the trusted data according to the first designated content and the mapping relation, and sending the generated service notification to the corresponding front-end processor according to the determined port address; the first appointed content comprises the credible data corresponding to the appointed acquired user identity and the credible data type corresponding to the appointed service type requesting to handle the service.
4. The private chain-based business transaction system of claim 3, wherein the server is configured to: generating the second specified content according to load balance among all nodes in the block chain network; the second designation includes designating nodes in the blockchain network that meet a load requirement.
5. The private chain-based business transaction system of claim 1, wherein the server is configured to: acquiring a public key of an asymmetric encryption key pair generated when the user identity is registered according to the user identity contained in the service handling request, and packaging the public key into the service notification;
the front-end processor is configured to: acquiring appointed trusted data from a database according to the first appointed content in the service notification, and encrypting the acquired trusted data by using a public key in the service notification;
a node in the blockchain network is configured to: when an intelligent contract is executed, detecting whether a private key of an asymmetric encryption key pair is transmitted into the intelligent contract, if so, decrypting trusted data serving as an execution parameter by using the private key, otherwise, sending a private key acquisition request to the server to acquire the private key and transmit the private key into the intelligent contract; and in parallel, writing trusted data as an execution parameter into a block chain, and the trusted data written into the block chain being in an undecrypted state.
6. The private chain-based business transaction system of claim 5, wherein the server is configured to: after receiving the private key acquisition request, initiating authorization verification of the user identity to the user; and if the authorization verification is passed, transmitting the private key into the intelligent contract through a trusted execution link.
7. The private chain-based business handling system according to claim 6, wherein the server-initiated authorization verification specifically comprises: and judging whether the biological characteristic information of the user acquired in real time is matched with the biological characteristic information set when the identity of the user is registered, and if so, passing the authorization verification.
8. The private-chain-based transaction system of claim 7, wherein the biometric information includes at least one of fingerprint information, iris information, or face information.
9. A private chain-based transaction system according to claim 1, wherein a node in the blockchain network is configured to: taking each item of trusted data as an execution parameter to execute the corresponding intelligent contract, and sequentially obtaining an approval certificate and an approval result; writing each item of trusted data, the examination and approval voucher and the examination and approval result into a block chain respectively; the approval certificate is a statistical result of whether each item of trusted data meets corresponding approval conditions in the intelligent contract execution process, and the approval result is determined by the approval certificate to indicate whether corresponding business handling is approved or not.
10. A private-chain based transaction system according to any of claims 1-9, wherein the trusted data carries timestamp information of the most recent update.
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