CN114500111B - Multi-platform-based automatic project audit data processing method and system - Google Patents

Abstract

The invention provides a multi-platform-based automatic project audit data processing method and a multi-platform-based automatic project audit data processing system, which specifically comprise the following steps: when one intranet node in a first type platform is stored with project audit data, acquiring a first information node of the intranet node; determining at least one corresponding second information node corresponding to a second type platform according to the first information node and a preset node authority list, and distributing project audit data stored in the first information node to the second information node corresponding to the second type platform respectively based on an intranet block chain; if any one of the first type platform or the second type platform receives the project audit data sending request, taking the corresponding first type platform or the second type platform as an outbound platform; and transmitting the encrypted engineering audit data at the intranet node of the external transmission platform to an external network node based on the network gate, and transmitting the engineering audit data to the external network node of the third type platform by the external network node.

Description

Data processing method and system for automatic engineering price auditing based on multi-platform

technical field

The invention relates to the technical field of data processing, in particular to a multi-platform-based automatic engineering price auditing data processing method and system.

Background technique

Price review refers to the review and verification work done by the construction unit and the construction unit before the settlement of the project price according to the contract, the national quota and the relevant project materials after the project has passed the completion quality acceptance, which is the determination of the price of the construction product. The specific method can be negotiated by both parties on the price, or the final cost can be determined by an institution qualified for price evaluation.

Auditing refers to the supervision and evaluation of the investment income, investment quality, and investment process, including project cost, of capital construction projects by the state administrative authority.

The project price audit data is very important to a company, and it belongs to the company's secrets. However, in the actual work scenario, the project price audit data needs to be exchanged between the construction unit, the construction unit, and the shareholder company. In order to realize the interaction of data, how to ensure the security of data is a necessary premise in the process of interaction.

Data security includes two aspects, one is whether the data is obtained by criminals, that is, the storage method of data is limited, and the other is whether the data can be cracked after being obtained by criminals, so a technical solution is urgently needed Security restrictions are implemented in the storage process of project price audit data, and dynamic encryption is performed according to the data storage method to ensure the security of project price audit data.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a multi-platform-based automatic project price audit data processing method and system. The multi-platform is cut through a gatekeeper to obtain an internal network blockchain and an external network blockchain, so that the project price audit data and the like are obtained. When sensitive data is transmitted internally, it is transmitted through the intranet blockchain, which is safe, tamper-proof, and traceable. When necessary for external network transmission, the necessary transmission data can be transmitted to the external network through the gatekeeper, and will be transmitted to the external network according to the requirements. The attributes of different automatic project price auditing audit data are encrypted differently to realize dynamic encryption. The present invention makes the security restriction in the storage process of the project price auditing audit data, and performs dynamic encryption according to the storage mode of the data, so as to ensure the security of the project price auditing audit data.

A first aspect of the embodiments of the present invention provides a multi-platform-based automatic engineering price review audit data processing method, where the multi-platform includes a first type platform, a second type platform, and a third type platform, the first type platform, the second type platform The type platform includes an internal network node and an external network node respectively, and the internal network node and the external network node are connected through a gatekeeper, and the processing of the project price auditing audit data is carried out through the following steps, specifically including:

The intranet blockchain is formed according to all the intranet nodes of the first type platform and the second type platform, and the extranet blockchain is formed according to all the external network nodes of the first type platform, the second type platform, and the third type platform;

When a certain intranet node in the first type platform is stored with the project price audit audit data, obtain the first information node of the intranet node;

According to the first information node and the preset node authority list, at least one second information node corresponding to the second type of platform is determined, and based on the intranet blockchain, the project audit price stored by the first information node is Distributing the audit data to the second information node corresponding to the second type platform;

If it is determined that any one of the first type platform or the second type platform receives the data sending request of the project price auditing audit, the corresponding first type platform or the second type platform will be used as the external transmission platform, based on all the first type platform and the second type platform. The first information node and the second information node of the type platform generate a dynamic first encryption key, and encrypt the project price audit data according to the first encryption key;

Based on the gatekeeper, the encrypted project price audit data at the internal network node of the external transmission platform is transmitted to the external network node, and the external network node transmits the encrypted project price audit data to the third-type platform according to the data sending request. at the external network node.

Optionally, in a possible implementation manner of the first aspect, after a certain intranet node in the first type platform is stored with the project price audit audit data, the information of the first information node of the intranet node is obtained. The steps include:

Each intranet node monitors the data storage interface, and broadcasts if it is judged that the project price audit data is stored in the first intranet storage medium at the corresponding intranet node;

After receiving the broadcast, other intranet nodes will book the behavior of the project price audit data received by a certain intranet node, and obtain the intranet account book;

The intranet node acquires a first information node corresponding to the first intranet storage medium stored in the project price auditing audit data, and each first information node includes at least one first intranet storage medium.

Optionally, in a possible implementation manner of the first aspect, at least one second information node corresponding to the second type of platform is determined according to the first information node and a preset node authority list. , in the step of distributing the project price audit data stored in the first information node to the second information node corresponding to the second type platform based on the intranet blockchain, specifically including:

Obtain a node authority list generated by multiple intranet nodes based on a consensus mechanism, where the node authority list includes a multi-dimensional node topology map;

determining a first topology node corresponding to the first information node in the multi-dimensional node topology map;

At least one second topology node corresponding to the first topology node is determined according to the multi-dimensional node topology map, and the project price audit data at the first information node is sent to the second topology node corresponding to the second topology node. Stored at the information node.

Optionally, in a possible implementation manner of the first aspect, when at least one second topology node corresponding to the first topology node is determined according to the multi-dimensional node topology map, The step of sending the project price auditing audit data to the second information node corresponding to the second topology node and storing it specifically includes:

Taking all the vertical upper-dimensional nodes of the first topology node as the second topology node of the first type, and acquiring the second information node corresponding to the second topology node of the first type;

After the first information node adds a first transmission identifier to the project price audit data, and sends it to the second information node corresponding to the second topology node of the first type for storage, the first transmission identifier is to allow project auditing. The price audit data is transmitted to the identity of the external network blockchain through the gatekeeper.

Optionally, in a possible implementation manner of the first aspect, when at least one second topology node corresponding to the first topology node is determined according to the multi-dimensional node topology map, The step of sending the project price auditing audit data to the second information node corresponding to the second topology node and storing it specifically includes:

If there is any second topology node of the first type that sends a data different-dimensional transmission command to the first topology node, the first topology node obtains the second information node in the different-dimensional transmission command as the second information node of the second type. Two topology nodes;

After the first information node adds a second transmission identifier to the project price audit data, it is sent to the second information node corresponding to the second topology node of the second type for storage, and the second transmission identifier is that the project is not allowed. The price audit data is transmitted to the identity of the external network blockchain through the gatekeeper.

Optionally, in a possible implementation manner of the first aspect, a dynamic first encryption key is generated based on the first information node and the second information node of all the first-type platforms and the second-type platforms, according to the In the steps of encrypting and processing the project price audit audit data with the first encryption key, it specifically includes:

Initially set the first key space, the second key space and the third key space, the prefixes of the first key space, the second key space and the third key space are respectively provided with the first fixed character, the first key space and the third key space. Two fixed characters and a third fixed character;

Use the first attribute information of the first information node, the second attribute information of the second information node of the first type, and the third attribute information of the second information node of the second type as the traceability information, and fill in the first key space respectively. place, the second key space and the third key space, obtain the first traceability key string;

Obtaining the data character information of the project price audit data, calculating the data character information based on a hash algorithm to obtain a first hash value, and obtaining a second traceability key string based on the first hash value;

The first encryption key is obtained by fusing the first traceability key character string in front and the second traceability key character string at the back.

Optionally, in a possible implementation manner of the first aspect, the project price audit data encrypted at the internal network node of the external transmission platform based on the gatekeeper is transmitted to the external network node, and the external network node sends the data according to the data. The steps of requesting to transmit the encrypted project price audit data to the external network node of the third type platform specifically include:

If it is judged that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has the first transmission identifier, the gatekeeper will be opened, so that the encrypted project price audit data will be transmitted to the external transmission platform. external network node;

If it is judged that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has a second transmission identifier, the control gate is closed, and the project price audit data is not externally transmitted and counted ;

After receiving the data sending request, the external network node transmits the encrypted project price audit data to the external network node of the third type platform;

The external network node of the third type platform decrypts the project price audit data based on the first encryption key, and calculates the decrypted project price audit data through a hash algorithm to obtain a second hash value;

The project audit data is verified according to the second hash value and the first hash value in the first encryption key.

Optionally, in a possible implementation manner of the first aspect, if it is judged that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has a first transmission identifier, the The steps of opening the gatekeeper to transmit the encrypted project price audit data to the external network node of the external transmission platform specifically include:

When the control unit at the gatekeeper determines that the external network node is disconnected from other networks, and the project price audit data has the first transmission identifier, the control unit obtains the verification coefficient corresponding to the gatekeeper;

Based on the verification coefficient, determine at least one verification topology node in the multi-dimensional node topology graph, and send a data verification request to the verification topology node;

If all the verification topology nodes send confirmation verification information respectively within the verification preset time period, the control unit controls the gatekeeper to open so that the encrypted project price audit data is transmitted to the external network node of the external transmission platform.

Optionally, in a possible implementation manner of the first aspect, if it is determined that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has a second transmission identifier, the control network After the gate is closed and the project price audit data is not externally transmitted and counted, the steps specifically include:

Obtain the total count times of the gatekeeper after the current shutdown count;

Comparing the total count times with the preset multi-level times interval to obtain the verification coefficient at the current moment, wherein each multi-level times interval has a preset verification coefficient;

If the verification coefficient at the current moment is the same as the verification coefficient at the gatekeeper's previous moment, the verification coefficient is not updated;

If the verification coefficient of the current moment is different from the verification coefficient of the gatekeeper at the previous moment, the verification coefficient of the current moment is updated to the verification coefficient of the previous moment.

A second aspect of the embodiments of the present invention provides a multi-platform-based automatic engineering price review audit data processing system. The multi-platform includes a first type platform, a second type platform, and a third type platform. The first type platform, the second type platform, the second type platform The type platform includes an internal network node and an external network node respectively. The internal network node and the external network node are connected through a gatekeeper, and the following modules are used to process the project audit data, including:

The block chain generation module is used to form an intranet blockchain based on all intranet nodes of the first type platform and the second type platform, and based on all the external network nodes of the first type platform, the second type platform and the third type platform Constitute the external network blockchain;

The node acquisition module is used for acquiring the first information node of the intranet node after a certain intranet node in the first type platform is stored with the project price auditing audit data;

The active distribution module is configured to determine at least one second information node corresponding to the second type of platform according to the first information node and the preset node authority list, and based on the intranet blockchain, distribute the information of the first information node. Distributing the stored project price audit data to the second information node corresponding to the second type platform;

The platform external transmission encryption module is used to determine that any one of the first type platform or the second type platform receives the data sending request of the project price auditing audit, then the corresponding first type platform or the second type platform is used as the external transmission platform, based on all the The first information node and the second information node of the first type platform and the second type platform generate a dynamic first encryption key, and encrypt the project price audit data according to the first encryption key;

The network outgoing encryption module is used to transmit the encrypted project price audit data at the internal network node of the outgoing platform to the external network node based on the gatekeeper, and the external network node will audit the encrypted project price audit according to the data sending request. The data is transmitted to the external network node of the third type platform.

A third aspect of the embodiments of the present invention provides a storage medium, where a computer program is stored in the storage medium, and the computer program is used to implement the first aspect of the present invention and various possible designs of the first aspect when the computer program is executed by a processor. of the method.

The invention provides a multi-platform-based automatic project price auditing data processing method and system. The multi-platform is cut through a gatekeeper to obtain an intranet blockchain and an external network blockchain, which makes the project price auditing data sensitive. When data is transmitted internally, it is transmitted through the intranet blockchain, which is safe, tamper-proof and traceable. When it is necessary to transmit to the external network, the necessary transmission data can be transmitted to the external network through the gatekeeper, and different encryption will be performed according to the attributes of different automatic project price audit data to realize dynamic encryption. The intranet block chain and the extranet block chain in the present invention have different data transmission logics, and the intranet block chain can actively distribute the automatic project price auditing audit data, so that the second-type platform can actively pass its internal block chain. The network node obtains the corresponding automatic project price audit data. At this time, the automatic project price audit data does not need to be encrypted, and it is kept confidential in terms of storage security at this time. The third type of platform, when receiving the audit data of automatic project price audit, needs to encrypt the automatic project price audit data of the intranet blockchain first, and then transmit it to the external network information node through the gatekeeper, and then according to the external network information Nodes are transmitted to the corresponding third-type platform, and then security is ensured in the transmission dimension.

According to the technical solution provided by the present invention, when the intranet blockchain actively distributes the project price audit data, it will distribute according to the preset multi-dimensional node topology map, thereby enabling the present invention to quickly determine each node based on the multi-dimensional node topology map. The relationship between the second type platform and the first type platform, and then batch and fast distribution of project price audit data. The present invention classifies the second information nodes according to the relationship between each second type platform and the first type platform in the multi-dimensional node topology diagram, so that different second information nodes have different effects on the project price auditing data. That is, there are some second information nodes that can transmit and synchronize data to the external network blockchain, so as to avoid the excessive use of data transmission authority and lead to leakage of project price audit data.

The technical solution provided by the present invention will determine the first attribute information, the second attribute information and the third attribute information according to the transmission path of the project price audit data, and obtain the first attribute information, the second attribute information and the third attribute information in combination with the first attribute information, the second attribute information and the third attribute information. The corresponding first traceability key string, the first traceability key string at this time is obtained according to the distribution path of the project price audit audit data, and the project price audit data with different attributes will have different transmission paths. The present invention also obtains the second traceability key string according to the data character information of the project price audit data. The second traceability key string can not only be used as a part of the first encryption key, but also can be used for the project price audit data. The correctness is verified. If the project price audit data is tampered with, it can be quickly determined based on the second traceability key string, thereby ensuring the validity and security of the project price audit data.

The technical solution provided by the present invention determines the number of verification topology nodes when the gatekeeper is opened and the automatic project price audit audit data is transmitted to the external network block chain according to the verification coefficient of the control unit at each gatekeeper, and When you want to transmit the project price audit data with the second transmission identifier, count it, so that the verification coefficient of the gatekeeper during data transmission is gradually increased, and the opening and closing of the gatekeeper is more strictly managed to avoid its private Since the gatekeeper transmits data that it does not have permission to transmit, the abuse of data transmission is avoided and the stability of the data storage process is guaranteed.

Description of drawings

1 is a schematic diagram of an application scenario of the technical solution provided by the present invention;

Fig. 2 is the flow chart of the first embodiment of the multi-platform based automatic project price audit audit data processing method;

Fig. 3 is the flow chart of the second embodiment of the multi-platform based automatic project price audit audit data processing method;

4 is a schematic structural diagram of a multi-dimensional node topology diagram;

FIG. 5 is a structural diagram of the first embodiment of the multi-platform-based automatic engineering price audit data processing system.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to Describe a particular order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of each process does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present invention. Implementation constitutes any limitation.

It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to Those steps or elements that are expressly listed may instead include other steps or elements that are not expressly listed or are inherent to the process, method, product or apparatus.

It should be understood that, in the present invention, "plurality" refers to two or more. "And/or" is just an association relationship that describes an associated object, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. Happening. The character "/" generally indicates that the associated objects are an "or" relationship. "Contains A, B and C", "contains A, B, C" means that A, B, and C are all contained, "contains A, B or C" means that one of A, B, and C is contained, "Comprising A, B and/or C" means including any one or any two or three of A, B, and C.

It should be understood that in the present invention, "B corresponding to A", "B corresponding to A", "A corresponds to B" or "B corresponds to A" means that B is associated with A, according to A B can be determined. Determining B based on A does not mean determining B based only on A, but also determining B based on A and/or other information. The matching between A and B means that the similarity between A and B is greater than or equal to a preset threshold.

"If" as used herein may be interpreted as "at" or "when" or "in response to determining" or "in response to detecting," depending on the context.

The technical solutions of the present invention will be described in detail below with specific examples. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

As shown in FIG. 1, it is a schematic structural diagram of the technical solution provided by the present invention, including a first-type platform, a second-type platform and a third-type platform, wherein the first-type platform and the second-type platform respectively include intranet nodes and The external network node, the internal network node and the external network node respectively have an internal network storage medium and an external network storage medium. It can be understood that the first type platform and the second type platform can be platforms owned by different companies in a group company. For example, a group company includes a parent company, a subsidiary company and a grandchild company. A parent company can include multiple subsidiaries. A subsidiary can include multiple sub-companys, a group company can form an intranet through an internal network, and a group company can form an external network through an external network. The project price auditing audit data can be stored separately through the intranet storage medium and the extranet storage medium. The internal network node and external network node of each of the first type platform and the second type platform are connected through a gatekeeper, so that the internal network node and the external network node are physically disconnected under normal conditions, but when data transmission is required, it can also be Enables temporary communication between intranet nodes and extranet nodes.

Among them, the first type of platform can be considered as a platform that has received the audit data of automatic project price review at the current moment, and the second type of platform can be regarded as a platform that has not received the audit data of automatic project price review at the current moment. The third type of platform can be an official platform, such as the tax bureau and so on.

The intranet node and extranet node of a platform can be two computers, two servers, etc. The two intranet servers and the extranet server are disconnected through a gatekeeper. All intranet servers of the first type of platform and the second type of platform are connected through a local area network to form an intranet blockchain. All external network servers of the first type platform and the second type platform are connected through a local area network to form an external network blockchain.

The present invention provides a multi-platform-based automatic project price audit data processing method. As shown in Figure 2, the project price audit data is processed through the following steps, specifically including:

Step S110: Construct an intranet block chain according to all intranet nodes of the first type platform and the second type platform, and form an extranet block based on all the extranet nodes of the first type platform, the second type platform, and the third type platform chain. Since the number of the first type platform, the second type platform and the third type platform may change, the present invention will update the first type platform, the second type platform, and the third type platform at different times. The intranet nodes of the first type platform and the second type platform will form the intranet blockchain, so that the first type platform and the second type platform can not only transmit data through the intranet blockchain, but also through the external network block. chain to transfer data. The present invention also connects the first type platform, the second type platform and the third type platform through the external network blockchain, so that the external network blockchain can transmit data. Among them, the intranet blockchain mainly stores and transmits the sensitive data of the group company, such as financial data, customer data, project price audit data and so on. External blockchains can transmit insensitive data.

Step S120: After a certain intranet node in the first type platform is stored with the project price auditing audit data, acquire the first information node of the intranet node. When there is an intranet node obtained by storing the project price audit data, it proves that the intranet node has new data at this time. Generally speaking, the project price audit data needs to be reported to the superior company, shareholder company, and wholly-owned parent company. company, etc. Therefore, at this time, the first information node of the intranet node needs to be determined first. A first type platform corresponds to at least one first information node. The intranet node of a first-type platform may include a server and multiple computers, each of which may be a first information node. Different servers and computers have different storage media, and different storage media may store different data. .

In a possible implementation manner of the technical solution provided by the present invention, step S120 specifically includes:

Each intranet node monitors the data storage interface, and broadcasts if it is determined that the project price audit data is stored in the first intranet storage medium at the corresponding intranet node. The present invention will monitor the data storage interface of the intranet node, and after storing the corresponding project price audit data, it will broadcast and notify other nodes to perform accounting. At this time, the intranet node receives the data. If it is an external network node The received data will also be broadcast, which will not be repeated in the present invention.

After receiving the broadcast, other intranet nodes record the behavior of the project price audit data received by a certain intranet node to obtain the intranet account book. After receiving the broadcast, other intranet nodes will book the project price audit data received by the intranet node of the first type of platform to obtain a corresponding intranet account book.

The intranet node acquires a first information node corresponding to the first intranet storage medium stored in the project price auditing audit data, and each first information node includes at least one first intranet storage medium. At this time, the intranet node will extract its corresponding first information node. The first node information is dynamically changed, only the node that receives the project price audit data will be regarded as the first node information, and the second node information is the normal state.

For example, within the first preset time period after receiving the project price audit data for a certain second-type platform, the corresponding second-type platform will be converted into the first-type platform, and the corresponding second-node information will be converted into the first-node information.

Step S130: Determine at least one second information node corresponding to the second type of platform according to the first information node and the preset node authority list, and assign the first information node based on the intranet blockchain. The stored project price auditing data are distributed to the second information nodes corresponding to the second type platform respectively. According to the technical solution provided by the present invention, after the first information node receives the project price audit data, it will determine a plurality of second information nodes to which the project price audit data needs to be actively distributed according to the node authority list. The engineering price audit data stored in the first information node is distributed to the second information node.

In a possible implementation manner of the technical solution provided by the present invention, as shown in FIG. 3 , step S130 specifically includes:

Step S1301: Obtain a node authority list generated by multiple intranet nodes based on a consensus mechanism, where the node authority list includes a multi-dimensional node topology map. The present invention pre-configures a multi-dimensional node topology map according to different companies. As shown in FIG. 4 , the multi-dimensional node topology map includes a parent company, multiple subsidiaries, and multiple grandchildren companies.

Step S1302: Determine a first topology node corresponding to the first information node in the multi-dimensional node topology graph. After a certain second information node is converted into the first information node, the first topology node in the multi-dimensional node topology graph is determined first, and the first topology node is the topology node that receives the project price audit data.

Step S1303: Determine at least one second topology node corresponding to the first topology node according to the multi-dimensional node topology map, and send the project audit data at the first information node to the corresponding second topology node. is stored at the second information node of . After determining the first topology node, the present invention will directly obtain the second topology node that needs to distribute the automatic project price audit data according to the multi-dimensional node topology map, and at this time, the corresponding project price audit data will be distributed to the second information node. storage. Each node in the topology map corresponds to a different company. Different companies are divided into the first type platform and the second type platform according to the status of their data transmission and reception. The first type platform and the second type platform respectively correspond to the first information. node or second information node. The topology node corresponding to the platform of the first type may be regarded as the first topology node, and the topology node corresponding to the platform of the second type may be regarded as the second topology node.

In a possible implementation manner of the technical solution provided by the present invention, step S1303 specifically includes:

All vertical upper-dimensional nodes of the first topology node are regarded as second topology nodes of the first type, and second information nodes corresponding to the second topology nodes of the first type are acquired. According to the technical solution provided by the present invention, all vertical upper-dimensional nodes of the first topology node are used as the second topology node of the first type according to the connection relationship of each topology node. For example, when the first topology node is Sun Company 3, The second topology node of the first type corresponding to this time is the subsidiary company 2 and the parent company, and the second information node at this time is the internal information of the second type of product table corresponding to the subsidiary company 2 and the parent company respectively. network node.

After the first information node adds a first transmission identifier to the project price audit data, and sends it to the second information node corresponding to the second topology node of the first type for storage, the first transmission identifier is to allow project auditing. The price audit data is transmitted to the external network blockchain through the gatekeeper. It can be understood that the company corresponding to the second topology node of the first type has direct jurisdiction over the company corresponding to the first topology node, so the second topology node can transmit the corresponding project price audit data to other platform. Therefore, after adding the first transmission identifier to the project price audit data at this time, the first transmission identifier is the project price audit data and can be authenticated by the gatekeeper. If there is no first transmission identifier, the corresponding second information node cannot The project price audit data is transmitted through the gatekeeper.

In a possible implementation manner of the technical solution provided by the present invention, step S1303 specifically includes:

If there is any second topology node of the first type that sends a data different-dimensional transmission command to the first topology node, the first topology node obtains the second information node in the different-dimensional transmission command as the second information node of the second type. Two topology nodes. In the actual data transmission scenario, a subsidiary without a vertical leadership relationship may need to view the project price audit data of certain sub-companys. For example, subsidiary 1 needs to view the project price audit data of sub-company 3. The company with vertical leadership (the second topology node of the first type) sends a data different-dimensional transmission command to the first topology node. At this time, the different-dimensional transmission command will have the information of subsidiary 1. At this time, the subsidiary company 1 The corresponding second information node is the second topology node of the second type.

After the first information node adds a second transmission identifier to the project price audit data, it is sent to the second information node corresponding to the second topology node of the second type for storage, and the second transmission identifier is that the project is not allowed. The price audit data is transmitted to the external network blockchain through the gatekeeper. At this time, the first information node can determine the second information node. The first information node adds the second transmission identifier to the project price audit data and sends it to the second topology node of the second type. At this time, the subsidiary company 1 receives the The second transmission identification is added to the project price audit data of the project, that is, the project price audit data of the second transmission identification cannot be transmitted to the external network blockchain, but can only be viewed through the intranet blockchain.

Through the above technical solutions, the present invention can have different network storage methods after receiving the project price auditing audit data at different nodes according to different dimensions of the topology nodes in the multi-dimensional node topology diagram. The first type of second information node The project price audit data can be transmitted through the gatekeeper, that is, the corresponding project price audit data can be transmitted between the internal network and the external network. The second information node of the second type cannot transmit the project price audit data through the gatekeeper, that is, the corresponding project price audit data can only be transmitted between the intranets. Through the above methods, the circulation of project price audit data is effectively reduced through technical means, and the abuse of project price audit data transmission is avoided.

Step S140, if it is judged that any first-type platform or second-type platform receives the project price auditing data sending request, then the corresponding first-type platform or second-type platform is used as an external transmission platform, based on all the first-type platforms and the second-type platform. The first information node and the second information node of the second type platform generate a dynamic first encryption key, and encrypt the project price audit data according to the first encryption key.

After the platform that needs to view the project price audit data in the intranet blockchain has received the corresponding project price audit data, the corresponding staff can view the corresponding project price audit data through the display terminal at the intranet node. However, when regulatory agencies such as the Taxation Bureau, the Administration for Industry and Commerce need to inspect and verify the corresponding project price audit data, or when other Party A needs to view the project price audit data, the corresponding project price audit data needs to be checked. Outreach.

At this time, the present invention will use the first type platform or the second type platform for the external transmission operation and process as the external transmission platform, and the request for sending the project price audit audit data can be the third type platform to the first type platform or the second type platform through the external network. transmitted by the platform. At this time, it is necessary to generate a corresponding first encryption key according to the first information node and the second information node, and combine the first encryption key to encrypt the project audit data. In order to ensure the reliability of the project audit data encryption, The first encryption key must be dynamic to avoid multiple project price audit data having the same key.

In the prior art, many enterprises will perform dynamic encryption of quantum keys through quantum servers, but this encryption method is not related to the corresponding data, and it is impossible to trace the source of some information according to the corresponding key.

In a possible implementation manner of the technical solution provided by the present invention, step S140 specifically includes:

Initially set the first key space, the second key space and the third key space, the prefixes of the first key space, the second key space and the third key space are respectively provided with the first fixed character, the first key space and the third key space. A second fixed character and a third fixed character. In the technical solution provided by the present invention, the initialization process of the key is performed, and at this time, the corresponding first key space, second key space and third key space, the first fixed character, the second fixed character and the third key space are set. The three fixed characters can be A, B, C, etc. respectively. The key form at this time can be ABC.

Use the first attribute information of the first information node, the second attribute information of the first type of second information node, and the third attribute information of the second type of second information node as traceability information, and fill in the first password respectively. At the key space, the second key space and the third key space, the first traceability key string is obtained. Different node information may have different attributes, the first attribute information may be its own identity, IP information, etc., the first attribute information, the second attribute information and the third attribute information such as 101, 102, 103 and so on. In the present invention, the first attribute information, the second attribute information and the third attribute information are respectively filled in the corresponding vacancies, which may be A101B102C103 at this time. The first traceability key string can be the first part of the first encryption key, and the node can be traced through the first traceability key string, that is, the first key space can be traced to the node that initially received the project price audit data. , the second key slot can be traced back to the second attribute information of the second information node of the first type, that is, it can be traced to a node that has jurisdiction over the first information node, and the third key slot can be traced back to receiving the corresponding The project price audit data, but the information node that cannot be transmitted to the Internet, can be traced based on the corresponding first traceability key string when quickly tracing the source of a certain information through the above method.

Acquire data character information of the project price audit data, calculate a first hash value based on the data character information based on a hash algorithm, and obtain a second traceability key string based on the first hash value. The technical solution provided by the present invention can obtain the data character information of the project price audit data. The data character information at this time can be understood as the characters corresponding to the project price audit data. Generally speaking, each different data corresponds to characters are unique and fixed. The present invention calculates the data character information based on the hash algorithm to obtain the first hash value, and the first hash value at this time can be used for traceability verification of the corresponding project audit data. The hash value obtains the second traceability key string, and in a certain scenario, the first hash value and the second traceability key string may be equivalent.

The first encryption key is obtained by fusing the first traceability key character string in front and the second traceability key character string at the back. For example, the string of the second traceability key is p@4u0*q&3s, then the first encryption key obtained at this time is A101B102C103p@4u0*q&3s.

The technical solution provided by the present invention combines two traceability key strings with traceability functions into a first encryption key, so that the first encryption key can not only encrypt the project price audit data, but also can encrypt the project audit data. The audit data is used to trace the source of the transmission dimension and the data correctness dimension. It makes the data transmission and traceability between the intranet blockchain and the extranet blockchain more convenient.

Step S150, based on the gatekeeper, transmit the encrypted project price audit data at the internal network node of the external transmission platform to the external network node, and the external network node transmits the encrypted project price audit data to the third party according to the data sending request. At the external network node of the type platform. After the project price audit data is encrypted, it is necessary to connect and open up the corresponding internal network node and external network node through the gatekeeper at the external transmission platform. After receiving the corresponding project price audit data, the external network node will The data sending request transmits the encrypted project price audit data to the external network node of the third type platform, so that the external network node of the third type platform can audit the corresponding data.

Generally speaking, the first encryption key and the project price audit data may be transmitted separately, that is, they may be transmitted through a removable storage medium. Through the external network blockchain, the behavior of each external platform to transmit the project price audit data to the third type of platform can be recorded.

In the technical solution provided by the present invention, in a possible implementation manner, step S150 specifically includes:

If it is judged that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has the first transmission identifier, the gatekeeper will be opened to transmit the encrypted project price audit data to the external transmission platform. External network node. When the external network node is disconnected from other networks, it proves that the external network node will not be attacked by other illegal nodes at this time, and the project price audit data has the first transmission identifier, that is, the corresponding internal network node has transmission If the project price audit data is authorized, the gatekeeper can be opened at this time to transmit the encrypted project price audit data to the external network node of the external transmission platform.

If it is determined that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has the second transmission identifier, the gatekeeper is controlled to close and not transmit the project price audit data and count. In some scenarios, some platforms may want to transmit files that they do not have permission to upload. At this time, the control unit at the gatekeeper will first check the tags carried in the project price audit data to be transmitted. If it is judged to be the second transmission identifier, then the gatekeeper will be controlled to close and not transmit the project price audit data to the outside world and count it, and the count is that the platform corresponding to the gatekeeper wants to transmit the project for which it does not have transmission authority. The number of times of auditing the price audit data, the more times, the more irregular the operation of the platform.

After receiving the data sending request, the external network node transmits the encrypted project price audit data to the external network node of the third type platform. The external network node will transmit the encrypted project price audit data to the external network node of the third-type platform according to the data sending request, so as to realize the transmission of the project price audit data to other companies outside the group.

The external network node of the third type platform decrypts the project price audit data based on the first encryption key, and calculates the decrypted project price audit data through a hash algorithm to obtain a second hash value. After receiving the project price audit data, the external network node of the third type platform will decrypt the project price audit data according to the first encryption key, and then the third type platform will use the hash algorithm to decrypt the project price audit data. A calculation is performed to obtain the second hash value.

The project audit data is verified according to the second hash value and the first hash value in the first encryption key. The present invention will compare and verify the second hash value calculated by the third type platform with the first hash value in the first encryption key, if the second hash value is the same as the first hash value, It proves that the project price audit data sent by the first type platform or the second type platform at this time is the same as the project price audit data received by the third type platform. In this way, the third type platform can be traced to the source. The correctness of the project price audit data.

According to the technical solution provided by the present invention, in a possible implementation, if it is judged that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has a first transmission identifier, the network The steps of opening the gate to transmit the encrypted project price audit data to the external network node of the external transmission platform specifically include:

When the control unit at the gatekeeper determines that the external network node is disconnected from other networks and the project price audit data has the first transmission identifier, the gatekeeper control unit obtains the verification coefficient corresponding to the gatekeeper. Generally speaking, the opening and conduction of the gatekeeper may need to be controlled by personnel with higher authority. The gatekeeper control unit finds that the external network node is disconnected from other networks, and the project price audit data has the first transmission identifier. Once the conditions are met, the validation factor is determined. Validation coefficients can be 0, 1, 2, etc.

At least one verification topology node in the multi-dimensional node topology graph is determined based on the verification coefficient, and a data verification request is sent to the verification topology node. The present invention determines at least one verification topology node in the multi-dimensional node topology graph according to the verification coefficient. For example, if the verification coefficient is 0, the verification topology node is 0; if the verification coefficient is 1, the verification topology node is 1. Verify that topology nodes can be vertical up-dimensional nodes. For example, if the verification coefficient of Sun Company is 1, the corresponding verification topology node is 1, which can be subsidiary 2. For example, the verification coefficient of the grandson company is 2, and the corresponding verification topology nodes are 2, which can be the subsidiary company 2 and the parent company.

If all the verification topology nodes send confirmation verification information respectively within the verification preset time period, the gatekeeper control unit controls the gatekeeper to open so that the encrypted project price audit data is transmitted to the external network node of the external transmission platform. If within the corresponding verification preset time period, all verification topology nodes send confirmation verification information respectively, it proves that the data transmission is allowed, so at this time, the gatekeeper control unit controls the gatekeeper to open the encrypted project price. The audit data is transmitted to the external network node of the external transmission platform, which realizes the data transmission between the internal network blockchain and the external network blockchain. At this time, the project price audit data will be exposed on the external network.

According to the technical solution provided by the present invention, in a possible implementation, if it is determined that the external network node of the external transmission platform is disconnected from other networks, and the project price audit data has a second transmission identifier, the gatekeeper will be controlled. After the steps of closing and not transmitting the project price audit data and counting, specifically include:

Obtain the total count times of the gatekeeper after the current shutdown count. After a certain gatekeeper counts, it proves that the website wants to transmit data that it does not have the right to transmit. At this time, it is considered that the platform corresponding to the gatekeeper has violated the rules. Count to determine its number of violations within the corresponding time period.

The verification coefficient at the current moment is obtained by comparing the total count times with a preset multi-level times interval, wherein each multi-level times interval has a preset verification coefficient. In the technical solution provided by the present invention, a multi-level frequency interval will be preset, and the multi-level frequency interval can be as shown in Table 1. The total count times corresponding to interval 1 of the multi-level frequency interval is 0 to 2, and the verification coefficient is 0. That is to say, no higher-dimensional verification topology node is needed at this time, that is, the gatekeeper can be controlled to open and data transmission can be performed without receiving a confirmation verification message within the verification preset time period. The total number of counts corresponding to the interval 2 of the multi-level frequency interval is 3 to 5, and the verification coefficient is 1, that is, a higher-dimensional verification topology node is required at this time, that is, a verification topology node is received within the verification preset time period. The sent confirmation verification message can control the gatekeeper to open and perform data transmission.

If the verification coefficient at the current moment is the same as the verification coefficient at the gatekeeper's previous moment, the verification coefficient is not updated. If the verification coefficient of the current moment is the same as the verification coefficient of the gatekeeper at the previous moment, there is no need to update the verification coefficient. For example, the verification coefficient of the previous moment is 1, and the total number of counts is 3. When counting again, the total number of counts becomes 4. , the verification coefficient at the current moment is still 1, so at this time the verification coefficient is the same, it is not necessary to update the verification coefficient, only the total count times need to be updated.

If the verification coefficient of the current moment is different from the verification coefficient of the gatekeeper at the previous moment, the verification coefficient of the current moment is updated to the verification coefficient of the previous moment. If the verification coefficient of the current moment is different from the verification coefficient of the gatekeeper at the previous moment, the verification coefficient needs to be updated. For example, the verification coefficient of the previous moment is 1, and the total number of counts is 6. When counting again, the total number of counts becomes 7. , the verification coefficient at the current moment is still 2, so the verification coefficient at the current moment is not the same as the verification coefficient at the previous moment, and the verification coefficient needs to be updated, as well as the total count times. At this time, there are 2 verification topology nodes, including corresponding subsidiaries and parent companies.

In order to realize a multi-platform-based automatic project price audit data processing method provided by the present invention, the present invention also provides a multi-platform-based automatic project price audit data processing system, which performs the process of project price audit data processing through the following modules. The processing, as shown in Figure 5, specifically includes:

The block chain generation module is used to form an intranet blockchain based on all intranet nodes of the first type platform and the second type platform, and based on all the external network nodes of the first type platform, the second type platform and the third type platform Constitute the external network blockchain;

The node acquisition module is used for acquiring the first information node of the intranet node after a certain intranet node in the first type platform is stored with the project price auditing audit data;

The active distribution module is configured to determine at least one second information node corresponding to the second type of platform according to the first information node and the preset node authority list, and based on the intranet blockchain, distribute the information of the first information node. The stored project price audit data is distributed to the second information node corresponding to the second type platform;

The platform external transmission encryption module is used to determine that any one of the first type platform or the second type platform receives the data sending request of the project price auditing audit, then the corresponding first type platform or the second type platform is used as the external transmission platform, based on all the The first information node and the second information node of the first type platform and the second type platform generate a dynamic first encryption key, and encrypt the project price audit data according to the first encryption key;

The network outgoing encryption module is used to transmit the encrypted project price audit data at the internal network node of the outgoing platform to the external network node based on the gatekeeper, and the external network node will audit the encrypted project price audit according to the data sending request. The data is transmitted to the external network node of the third type platform.

The present invention also provides a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, is used to implement the methods provided by the above-mentioned various embodiments.

The storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media can be any available media that can be accessed by a general purpose or special purpose computer. For example, a storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC for short). Alternatively, the ASIC may be located in the user equipment. Of course, the processor and storage medium may also exist in the communication device as discrete components. The storage medium may be read only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like.

The present invention also provides a program product, the program product includes execution instructions, and the execution instructions are stored in a storage medium. At least one processor of the device may read the execution instruction from the storage medium, and the execution of the execution instruction by the at least one processor causes the device to implement the methods provided by the various embodiments described above.

In the above embodiments of the terminal or server, it should be understood that the processor may be a central processing unit (English: Central Processing Unit, CPU for short), or other general-purpose processors, digital signal processors (English: Digital Signal Processor) , referred to as: DSP), application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as: ASIC) and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the present invention can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. The automatic engineering audit data processing method based on the multiple platforms is characterized in that the multiple platforms comprise a first type platform, a second type platform and a third type platform, the first type platform and the second type platform respectively comprise an intranet node and an extranet node, the intranet node and the extranet node are connected through a network gate, and the processing of the engineering audit data is carried out through the following steps, and the method specifically comprises the following steps:

forming an intranet block chain according to intranet nodes of all the first type platforms and the second type platforms, and forming an extranet block chain according to extranet nodes of all the first type platforms, the second type platforms and the third type platforms;

when one intranet node in the first type platform is stored with project audit data, a first information node of the intranet node is obtained;

determining at least one second information node corresponding to a second type platform according to the first information node and a preset node authority list, and distributing project audit data stored in the first information node to the second information nodes corresponding to the second type platform respectively based on an intranet block chain;

if any one of the first type platform or the second type platform is judged to receive the data sending request of the engineering audit, the corresponding first type platform or the second type platform is taken as an outbound platform, a dynamic first encryption key is generated based on the first information node and the second information node of all the first type platform and the second type platform, and the engineering audit data is encrypted according to the first encryption key;

and based on the network gate, transmitting the encrypted engineering audit data at the intranet node of the external transmission platform to the external network node, and transmitting the encrypted engineering audit data to the external network node of the third type platform by the external network node according to the data sending request.

2. The multi-platform based automatic engineering audit data processing method of claim 1,

after a certain intranet node in a first type platform is stored with project audit data, the step of obtaining a first information node of the intranet node specifically comprises the following steps:

each intranet node monitors the data storage interface, and if the fact that engineering audit data are stored in the first intranet storage medium at the corresponding intranet node is judged, broadcasting is conducted;

after other intranet nodes receive the broadcast, the behavior of the project audit data received by one intranet node is booked to obtain an intranet account book;

the method comprises the steps that intranet nodes obtain first information nodes corresponding to first intranet storage media stored in engineering audit data, and each first information node comprises at least one first intranet storage medium.

3. The multi-platform based automatic engineering audit data processing method of claim 1,

in the step of determining, according to the first information node and a preset node permission list, at least one corresponding second information node corresponding to the second type platform, and distributing, based on an intranet block chain, the engineering audit data of the audit price review stored in the first information node to the second information node corresponding to the second type platform, the method specifically includes:

acquiring a node permission list generated by a plurality of intranet nodes based on a consensus mechanism, wherein the node permission list comprises a multidimensional node topological graph;

determining a first topological node corresponding to the first information node in the multi-dimensional node topological graph;

and determining at least one second topological node corresponding to the first topological node according to the multi-dimensional node topological graph, and sending the engineering audit data at the first information node to the second information node corresponding to the second topological node for storage.

4. The multi-platform based automatic engineering audit data processing method of claim 3 wherein,

in the step of determining at least one second topology node corresponding to the first topology node according to the multidimensional node topology map, and sending the engineering audit data at the first information node to the second information node corresponding to the second topology node for storage, the method specifically includes:

taking all vertical upper-dimensional nodes of the first topological node as a first type of second topological node, and acquiring a second information node corresponding to the first type of second topological node;

and after adding a first transmission identifier to the engineering audit data, the first information node sends the engineering audit data to a second information node corresponding to a second topology node of the first type for storage, wherein the first transmission identifier is an identifier allowing the engineering audit data to be transmitted to an extranet block chain through a gatekeeper.

5. The multi-platform based automatic engineering audit data processing method of claim 4 wherein,

in the step of determining at least one second topology node corresponding to the first topology node according to the multidimensional node topology graph, and sending the engineering audit data at the first information node to the second information node corresponding to the second topology node for storage, the method specifically includes:

if any one first type of second topology node sends a data different-dimensional transmission command to the first topology node, the first topology node acquires a second information node in the different-dimensional transmission command as a second type of second topology node;

and after adding a second transmission identifier to the engineering audit data, the first information node sends the engineering audit data to a second information node corresponding to a second topology node of a second type for storage, wherein the second transmission identifier is an identifier which does not allow the engineering audit data to be transmitted to an extranet block chain through a gatekeeper.

6. The multi-platform based automatic engineering audit data processing method of claim 5 wherein,

the method specifically comprises the steps of generating a dynamic first encryption key based on first information nodes and second information nodes of all first type platforms and second type platforms, and encrypting engineering audit data according to the first encryption key, wherein the steps specifically comprise:

initializing and setting a first key vacancy, a second key vacancy and a third key vacancy, wherein prefixes of the first key vacancy, the second key vacancy and the third key vacancy are respectively provided with a first fixed character, a second fixed character and a third fixed character;

filling first attribute information of a first information node, second attribute information of a second information node corresponding to a first type of second topology node, and third attribute information of a second information node corresponding to a second type of second topology node as tracing information to a first key vacancy, a second key vacancy and a third key vacancy respectively to obtain a first tracing key character string;

acquiring data character information of the engineering audit data, calculating the data character information based on a Hash algorithm to obtain a first Hash value, and obtaining a second traceability key character string based on the first Hash value;

and fusing the first tracing key character string and the second tracing key character string to obtain a first encryption key.

7. The multi-platform based automatic engineering audit data processing method of claim 6,

in the step of transmitting the encrypted engineering audit data at the intranet node of the external platform to the external network node based on the gatekeeper, and transmitting the encrypted engineering audit data to the external network node of the third type platform by the external network node according to the data sending request, the method specifically comprises the following steps:

if the outer network node of the outbound platform is judged to be disconnected from other networks, and the project audit data has the first transmission identifier, the network gate is opened, so that the encrypted project audit data is transmitted to the outer network node of the outbound platform;

if the external network node of the external transmission platform is disconnected with other networks and the project audit data is provided with a second transmission identifier, controlling a network gate to close and not transmitting the project audit data externally and counting;

after receiving the data sending request, the external network node transmits the encrypted project audit data to the external network node of the third type platform;

the external network node of the third type platform decrypts the engineering audit data based on the first encryption key, and calculates the decrypted engineering audit data through a Hash algorithm to obtain a second Hash value;

and verifying the engineering audit data according to the second hash value and the first hash value in the first encryption key.

8. The multi-platform based automatic engineering audit data processing method of claim 7 wherein,

if the situation that the external network node of the external transmission platform is disconnected with other networks is judged, and the engineering audit data has the first transmission identifier, the gateway is opened, so that the encrypted engineering audit data is transmitted to the external network node of the external transmission platform, and the method specifically comprises the following steps:

when a control unit at the gatekeeper judges that an external network node is disconnected from other networks and project audit data has a first transmission identifier, the control unit acquires a verification coefficient corresponding to the gatekeeper;

determining at least one verification topological node in the multi-dimensional node topological graph based on the verification coefficient, and sending a data verification request to the verification topological node;

and if all the verification topology nodes respectively send the confirmation verification information within the verification preset time period, the control unit controls the network gate to be opened, so that the encrypted project audit data is transmitted to the external network node of the external platform.

9. The multi-platform based automatic project audit data processing method of claim 8,

if the external network node of the external transmission platform is disconnected from other networks, and the project audit data has a second transmission identifier, the method specifically comprises the following steps of controlling a gateway to be closed and not externally transmitting the project audit data and counting:

acquiring the total counting times of the gatekeeper after the gatekeeper is currently closed and counted;

comparing the total counting times with preset multi-level time intervals to obtain a verification coefficient of the current moment, wherein each multi-level time interval has a preset verification coefficient;

if the verification coefficient at the current moment is the same as the verification coefficient at the previous moment of the gatekeeper, the verification coefficient is not updated;

and if the verification coefficient at the current moment is different from the verification coefficient at the previous moment of the gatekeeper, updating the verification coefficient at the current moment to the verification coefficient at the previous moment.

10. Automatic engineering audit data processing system that audits based on multi-platform, its characterized in that, multi-platform include first type platform, second type platform and third type platform, and first type platform, second type platform include intranet node and extranet node respectively, intranet node and extranet node pass through the gatekeeper and connect, carry out the processing of engineering audit data that audits through following module, specifically include:

the block chain generating module is used for forming an inner network block chain according to inner network nodes of all the first type platforms and the second type platforms and forming an outer network block chain according to outer network nodes of all the first type platforms, the second type platforms and the third type platforms;

the node acquisition module is used for acquiring a first information node of an intranet node after the intranet node in the first type platform is stored with project audit price data;

the active distribution module is used for determining at least one second information node corresponding to a second type platform according to the first information node and a preset node authority list, and distributing project audit data stored in the first information node to the second information node corresponding to the second type platform respectively based on an intranet block chain;

the platform external transmission encryption module is used for generating a dynamic first encryption key based on the first information nodes and the second information nodes of all the first type platforms and the second type platforms if any one of the first type platforms or the second type platforms is judged to receive the data sending request of the engineering audit price, and encrypting the engineering audit price data according to the first encryption key;

and the network external transmission encryption module is used for transmitting the encrypted engineering audit data at the intranet node of the external transmission platform to the external network node based on the network gate, and the external network node transmits the encrypted engineering audit data to the external network node of the third type platform according to the data sending request.

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