CN114338665A - Declaration material tamper-proofing system based on block chain - Google Patents
Declaration material tamper-proofing system based on block chain Download PDFInfo
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Abstract
The invention discloses a declaration material tamper-proofing system based on a block chain, which relates to the technical field of block chain application and comprises the following steps: the online transaction module is used for filling in declaration information of a user, interacting uploading declaration material files and displaying material comparison result information; the file storage module is used for storing various electronic declaration materials submitted in the user declaration process; a key distribution module for distributing key pairs generated by an asymmetric cryptographic algorithm; the key comparison module is used as a mutual authentication mechanism of two parties during file transfer and exchange, compares whether the provided private key is matched with the self public key or not, and returns result information; the uplink certificate storing module is used for providing a file certificate storing mechanism and generating a corresponding block hash stored by a file; the Hash comparison module is used for comparing the hashes of the two parties to be verified and returning a comparison result; and the evidence storage recording module is used for recording each evidence storage operation and comparison operation and providing a traceable operation history recording mechanism. The invention can ensure the authenticity and the safety of the material.
Description
Technical Field
The invention relates to the technical field of block chain application, in particular to a declaration material tamper-proofing system based on a block chain.
Background
In recent years, related documents on the market clearly provide a service mode for government affair services to be innovated, so that enterprises and people are facilitated, market vitality is stimulated, and research and utilization block chains, artificial intelligence and other emerging technologies are provided to establish a credit evaluation mechanism based on a supply chain. For this reason, online office hall systems have been established in succession throughout the country.
With the vigorous promotion of governments in various regions on-line government services, the volume of on-line declaration business is gradually increased, but the declaration materials are too simple and original to be stored, the same effect of safety means of signing, stamping, fingerprint and the like on the materials in off-line transaction cannot be achieved, the requirements of real credibility, transparent circulation, clear authority confirmation and trace checking cannot be met, the challenges are provided for further optimizing and improving the informatization level of the government services and the administrative efficiency of the government services, and the requirements of the masses of enterprises for transaction cannot be met.
In addition, as the blockchain technology is continuously developed, the blockchain technology comprehensively applying the technologies such as the P2P network, the asymmetric encryption algorithm, the consensus mechanism and the like gradually becomes an infrastructure of the Internet, a strange trust system for removing centralization and intermediaries is established, the key foundation is public account book data which has the characteristics of time sequence, difficult tampering of contents and blockchain type structure, and the blockchain technology has wide application prospects. Such as virtual currency, traceable goods and medications implemented using blockchain technology, etc.
Disclosure of Invention
Aiming at the requirements and the defects of the prior art development, the invention provides a reporting material tamper-proofing system based on a block chain, so that the security and the credibility of reporting materials, the non-tamper storage and the traceability transfer among administrative departments are realized when government affairs service is transacted on the internet, the efficiency of online transaction service is improved, and the satisfaction degree of the masses of enterprises is increased.
The invention discloses a declaration material tamper-proofing system based on a block chain, which adopts the following technical scheme for solving the technical problems:
a block chain-based declared material tamper-resistant system structurally comprises:
the online transaction module is used for filling in declaration information of a user, interacting uploading declaration material files and displaying material comparison result information;
the file storage module is used for storing various electronic declaration materials submitted in the user declaration process and is used for circulation exchange among administrative examination and approval departments;
the key distribution module is used for distributing key pairs generated by an asymmetric encryption algorithm, namely a public key and a private key, for other modules to use when encrypting and exchanging data information;
the key comparison module is used as a mutual authentication mechanism of two parties during file transfer and exchange, compares whether a provided private key is matched with a self public key or not, and returns corresponding verification success and verification failure result information;
the uplink certificate storing module is used for providing a file certificate storing mechanism, generating a corresponding block hash stored by a file, and using the block hash as an uplink certificate for other modules;
the Hash comparison module is used for comparing the hashes of the two parties to be verified, returning the compared result and returning the information of successful comparison and failed comparison;
and the evidence storage recording module is used for recording each evidence storage operation and comparison operation and providing a traceable operation history recording mechanism.
Specifically, the work flow of the declaration material anti-tampering system is as follows:
(1) the method comprises the following steps that a user side, namely an enterprise crowd, uses an online transaction module of a government affair service platform to transact specific business, and submits corresponding declaration materials as the basis of administrative examination and approval in an online uploading mode;
(2) the key distribution module generates a pair of keys, namely a public key and a private key, through an asymmetric encryption algorithm;
(3) the online affair handling module stores the private key information acquired by the key distribution module;
(4) the online transaction module receives the uploaded declaration material file and sends the declaration material file and the private key information to the uplink certificate storing module;
(5) the cochain certificate storing module transmits the received private key information to the key comparison module;
(6) the key comparison module compares the public key of the key comparison module with a private key provided by the uplink certificate storing module through an asymmetric encryption algorithm, and returns information which passes the comparison to the uplink certificate storing module when the comparison is successful, otherwise returns information which fails to uplink;
(6.1) when the on-line office module receives successful information of the uplink certificate storing module, storing the received block hash information, and executing the step (7);
(6.2) when the online affair handling module receives the information of the cochain failure of the cochain certificate storing module, prompting the cochain failure, wherein the current declaration material is probably falsified by a third party, belongs to unsafe operation and cannot be trusted, and the operation is finished;
(7) the online affair handling module sends the declaration material file to the file storage module for storage;
(8) the file storage module returns file identification information after the declaration material file is uploaded;
(9) the door end of the administrative examination and approval department stores file identification information by using an online transaction module, acquires file information to be examined and approved from a file storage module, and sends the file information to be examined and approved together with the block hash to a hash comparison module;
(10) the Hash comparison module calculates the block Hash of the file, compares the block Hash with the received existing block Hash, returns the comparison success information to the online transaction module if the comparison is passed, returns the comparison failure information to the online transaction module if the comparison is not passed, and simultaneously sends the operation information to the certificate storage recording module for storage.
Optionally, step (6) is executed, the key comparison module compares the module with a private key provided by the cochain certificate storage module by using the own public key, and returns the comparison result to the cochain certificate storage module when the comparison is successful, after the cochain certificate storage module receives the information passing the comparison, the cochain operation is executed, the block hash of the corresponding block after the cochain of the file is returned is sent to the online affairs handling module, and meanwhile, the operation information of this time is sent to the certificate storage recording module for storage.
Optionally, step (6) is executed, the key comparison module compares the module with a private key provided by the cochain certificate storage module by using the own public key through an asymmetric encryption algorithm, the comparison is failed and returned to the cochain certificate storage module, and after receiving the information of the comparison failure, the cochain certificate storage module directly returns cochain failure information to the online affairs handling module and sends the operation information to the certificate storage recording module for storage.
Optionally, step (10) is executed, when the online transaction module receives the comparison success information returned by the Hash comparison module, it indicates that the declaration material file is not tampered, and the gate end of the administrative approval department should pass the approval.
Optionally, step (10) is executed, when the online transaction module receives the comparison failure information returned by the Hash comparison module, it indicates that the block Hash comparison fails, and the current declaration material may be tampered by a third party, and belongs to an unsafe operation and cannot be trusted.
Optionally, the file storage module/online transaction module/key distribution module, the key comparison module, the cochain certificate storage module, the Hash comparison module, and the certificate storage recording module are deployed in different servers.
Preferably, the file storage module is deployed in a file storage server;
the online affair handling module is deployed in a government affair service platform server;
the key distribution module, the key comparison module, the cochain certificate storage module, the Hash comparison module and the certificate storage recording module are deployed in the block chain server.
Compared with the prior art, the declaration material tamper-proofing system based on the block chain has the beneficial effects that:
(1) the invention can realize the safety and credibility of declaration materials, non-falsifiable storage and traceable circulation among administrative departments when the government affair service transacts on line, improve the efficiency of the online transaction service and increase the satisfaction degree of the masses of enterprises;
(2) the invention can ensure the authenticity and the safety of the material, reduce the repeated submission of the declaration material and reduce the work difficulty of the masses of the enterprise.
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FIG. 1 is a flow chart of the relationship of modules of the present invention.
Detailed Description
In order to make the technical scheme, the technical problems to be solved and the technical effects of the present invention more clearly apparent, the following technical scheme of the present invention is clearly and completely described with reference to the specific embodiments.
The first embodiment is as follows:
with reference to fig. 1, this embodiment provides a block chain-based declared material tamper-resistant system, which includes:
the online transaction module is used for filling in declaration information of a user, interacting uploading declaration material files and displaying material comparison result information;
the file storage module is used for storing various electronic declaration materials submitted in the user declaration process and is used for circulation exchange among administrative examination and approval departments;
the key distribution module is used for distributing key pairs generated by an asymmetric encryption algorithm, namely a public key and a private key, for other modules to use when encrypting and exchanging data information;
the key comparison module is used as a mutual authentication mechanism of two parties during file transfer and exchange, compares whether a provided private key is matched with a self public key or not, and returns corresponding verification success and verification failure result information;
the uplink certificate storing module is used for providing a file certificate storing mechanism, generating a corresponding block hash stored by a file, and using the block hash as an uplink certificate for other modules;
the Hash comparison module is used for comparing the hashes of the two parties to be verified, returning the compared result and returning the information of successful comparison and failed comparison;
and the evidence storage recording module is used for recording each evidence storage operation and comparison operation and providing a traceable operation history recording mechanism.
The system comprises a file storage module, an online affair handling module, a key distribution module, a key comparison module, a chaining certificate storage module, a Hash comparison module and a certificate storage recording module, wherein the file storage module is deployed in a file storage server, the online affair handling module is deployed in a government affair service platform server, and the key distribution module, the key comparison module, the chaining certificate storage module, the Hash comparison module and the certificate storage recording module are deployed in a block chain server.
Based on the modules, the work flow of the declaration material anti-tampering system is as follows:
(1) the method comprises the following steps that a user side, namely an enterprise crowd, uses an online transaction module of a government affair service platform to transact specific business, and submits corresponding declaration materials as the basis of administrative examination and approval in an online uploading mode;
(2) the key distribution module generates a pair of keys, namely a public key and a private key, through an asymmetric encryption algorithm;
(3) the online affair handling module stores the private key information acquired by the key distribution module;
(4) the online transaction module receives the uploaded declaration material file and sends the declaration material file and the private key information to the uplink certificate storing module;
(5) the cochain certificate storing module transmits the received private key information to the key comparison module;
(6) the key comparison module uses the self public key and the private key provided by the uplink certificate storage module to carry out comparison through an asymmetric encryption algorithm,
(6.1) returning to the cochain certificate storing module when the comparison is successful, executing cochain operation after the cochain certificate storing module receives the information passing the comparison, returning the hash of the block corresponding to the cochain file to the online affair handling module, and simultaneously sending the operation information to the certificate storing recording module for storage; when the online office module receives the successful information of the uplink certificate storing module, the received block hash information is stored, and the step (7) is executed;
(6.2) returning to the cochain certificate storing module when the comparison fails, wherein the cochain certificate storing module directly returns cochain failure information to the online affair handling module after receiving the information of the comparison failure, and simultaneously sends the operation information to the certificate storing recording module for storage; when the online affair handling module receives the information of the cochain failure of the cochain evidence storing module, the cochain failure is prompted, the current declaration material is probably falsified by a third party, the operation is unsafe and cannot be trusted, and the operation is finished;
(7) the online affair handling module sends the declaration material file to the file storage module for storage;
(8) the file storage module returns file identification information after the declaration material file is uploaded;
(9) the door end of the administrative examination and approval department stores file identification information by using an online transaction module, acquires file information to be examined and approved from a file storage module, and sends the file information to be examined and approved together with the block hash to a hash comparison module;
(10) the Hash comparison module calculates the block Hash of the file and compares the block Hash with the received existing block Hash,
(10.1) if the comparison is passed, returning the information of successful comparison to the online transaction module, and if the online transaction module receives the information of successful comparison returned by the Hash comparison module, indicating that the declaration material file is not tampered, the administrative examination and approval department door end passes the examination and approval and simultaneously sends the operation information to the certificate storage recording module for storage,
and (10.2) returning comparison failure information to the online transaction module if the comparison fails, wherein the online transaction module indicates that the block Hash comparison fails when receiving the comparison failure information returned by the Hash comparison module, the current declaration material is possibly falsified by a third party, belongs to unsafe operation and cannot be trusted, and meanwhile, the operation information is sent to the evidence storage recording module for storage.
In summary, the adoption of the declaration material tamper-proof system based on the block chain can realize the safety and credibility of declaration materials, the non-tamper storage and the traceability transfer among administrative departments when the government affair service transacts on line, improve the efficiency of online transaction service and increase the satisfaction degree of the masses of enterprises.
The principles and embodiments of the present invention have been described in detail using specific examples, which are provided only to aid in understanding the core technical content of the present invention. Based on the above embodiments of the present invention, those skilled in the art should make any improvements and modifications to the present invention without departing from the principle of the present invention, and therefore, the present invention should fall into the protection scope of the present invention.
Claims (8)
1. A block chain-based declared material tamper-resistant system is characterized by comprising the following structures:
the online transaction module is used for filling in declaration information of a user, interacting uploading declaration material files and displaying material comparison result information;
the file storage module is used for storing various electronic declaration materials submitted in the user declaration process and is used for circulation exchange among administrative examination and approval departments;
the key distribution module is used for distributing key pairs generated by an asymmetric encryption algorithm, namely a public key and a private key, for other modules to use when encrypting and exchanging data information;
the key comparison module is used as a mutual authentication mechanism of two parties during file transfer and exchange, compares whether a provided private key is matched with a self public key or not, and returns corresponding verification success and verification failure result information;
the uplink certificate storing module is used for providing a file certificate storing mechanism, generating a corresponding block hash stored by a file, and using the block hash as an uplink certificate for other modules;
the Hash comparison module is used for comparing the hashes of the two parties to be verified, returning the compared result and returning the information of successful comparison and failed comparison;
and the evidence storage recording module is used for recording each evidence storage operation and comparison operation and providing a traceable operation history recording mechanism.
2. The system of claim 1, wherein the process flow is as follows:
(1) the method comprises the following steps that a user side, namely an enterprise crowd, uses an online transaction module of a government affair service platform to transact specific business, and submits corresponding declaration materials as the basis of administrative examination and approval in an online uploading mode;
(2) the key distribution module generates a pair of keys, namely a public key and a private key, through an asymmetric encryption algorithm;
(3) the online affair handling module stores the private key information acquired by the key distribution module;
(4) the online transaction module receives the uploaded declaration material file and sends the declaration material file and the private key information to the uplink certificate storing module;
(5) the cochain certificate storing module transmits the received private key information to the key comparison module;
(6) the key comparison module compares the public key of the key comparison module with a private key provided by the uplink certificate storing module through an asymmetric encryption algorithm, and returns information which passes the comparison to the uplink certificate storing module when the comparison is successful, otherwise returns information which fails to uplink;
(6.1) when the on-line office module receives successful information of the uplink certificate storing module, storing the received block hash information, and executing the step (7);
(6.2) when the online affair handling module receives the information of the cochain failure of the cochain certificate storing module, prompting the cochain failure, wherein the current declaration material is probably falsified by a third party, belongs to unsafe operation and cannot be trusted, and the operation is finished;
(7) the online affair handling module sends the declaration material file to the file storage module for storage;
(8) the file storage module returns file identification information after the declaration material file is uploaded;
(9) the door end of the administrative examination and approval department stores file identification information by using an online transaction module, acquires file information to be examined and approved from a file storage module, and sends the file information to be examined and approved together with the block hash to a hash comparison module;
(10) the Hash comparison module calculates the block Hash of the file, compares the block Hash with the received existing block Hash, returns the comparison success information to the online transaction module if the comparison is passed, returns the comparison failure information to the online transaction module if the comparison is not passed, and simultaneously sends the operation information to the certificate storage recording module for storage.
3. The block chain-based declaration material tamper-proofing system of claim 2, wherein in the step (6), the key comparison module compares the public key of the key comparison module with the private key provided by the uplink certificate storage module through an asymmetric encryption algorithm, and returns the comparison result to the uplink certificate storage module when the comparison is successful, and after receiving the comparison passing information, the uplink certificate storage module executes uplink operation, returns the block hash of the corresponding block after the file is uplink to the online transaction module, and simultaneously sends the operation information to the certificate storage recording module for storage.
4. The block chain-based declaration material tamper-proofing system of claim 2, wherein in the step (6), the key comparison module compares the module with a private key provided by the uplink certificate storage module by using its own public key through an asymmetric encryption algorithm, and returns the result to the uplink certificate storage module when the comparison fails, and after receiving the information of the comparison failure, the uplink certificate storage module directly returns the uplink failure information to the online transaction module, and simultaneously sends the operation information to the certificate storage recording module for storage.
5. The block chain-based declared material tamper-resistant system as claimed in claim 2, wherein in the step (10), when the online transaction module receives the comparison success information returned by the Hash comparison module, it indicates that the declared material file is not tampered, and the gate end of the administrative approval department should pass the approval.
6. The block chain-based declared material tamper-resistant system as claimed in claim 2, wherein the step (10) is executed, when the online transaction module receives the comparison and comparison failure information returned by the Hash comparison module, the block Hash comparison is failed, and the declared material may be tampered by a third party, belongs to an unsafe operation, and cannot be trusted.
7. The system of claim 1, wherein the file storage module/the online transaction module/the key distribution module, the key comparison module, the uplink certificate storage module, the Hash comparison module, and the certificate record module are deployed on different servers.
8. The blockchain-based declared material tamper resistant system of claim 7 wherein the file storage module is deployed at a file storage server;
the online affair handling module is deployed in a government affair service platform server;
the key distribution module, the key comparison module, the cochain certificate storage module, the Hash comparison module and the certificate storage recording module are deployed in the block chain server.
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