CN112231397A - Transaction file transfer method and device based on block chain - Google Patents
Transaction file transfer method and device based on block chain Download PDFInfo
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- CN112231397A CN112231397A CN202011020650.4A CN202011020650A CN112231397A CN 112231397 A CN112231397 A CN 112231397A CN 202011020650 A CN202011020650 A CN 202011020650A CN 112231397 A CN112231397 A CN 112231397A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The application provides a transaction file transfer method based on a block chain, which comprises the following steps: calculating a first hash of the transaction file through a transaction file making tool; encrypting the transaction file through an electronic signature APP; uploading the encrypted transaction file, the first hash, the transaction subject information and the transaction item information to a chain service device; integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form an integral transaction file; storing the encrypted whole transaction file and the transaction item information in a blockchain point server; when the operation is started, the transaction center system acquires a corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performs whole decryption; decrypting the encrypted transaction file, and calculating a third hash of the decrypted transaction file; and comparing the first hash with the third hash, and if the first hash and the third hash are the same, the transaction file is valid. The transaction main body information is encrypted and stored in the block link point server, so that information leakage can be avoided; the hash comparison of the transaction file can ensure that the file is not tampered.
Description
Technical Field
The application relates to the technical field of network security and block chaining, in particular to a transaction file transfer method and device based on a block chaining, an electronic device and a computer readable medium.
Background
The transaction body needs to submit transaction documents, such as bid documents and bidder information, to different transaction centers during the transaction process. In the process from the submission of the bid information from the transaction main body to the bid opening of the bid inviting item, the conditions of leaking of the bidder list, tampering of the bid file and the like can occur, and the fairness of the transaction result is seriously influenced.
Disclosure of Invention
The application aims to provide a transaction file transfer method based on a block chain. The bidding document submitted by the trading subject, the hash of the bidding document and the trading subject information are integrally encrypted and then stored in the block link point server by utilizing the characteristics of block chain openness and transparency and tamper prevention, so that the trading subject information is prevented from being leaked by a trading center system; in addition, whether the obtained transaction file is consistent with the transaction file uploaded by the transaction main body or not is judged by recalculating the decrypted transaction file hash and the stored transaction file hash during the label opening, so that the validity of the transaction file is determined, and the transaction file is prevented from being tampered.
According to a first aspect of the present application, a block chain based transaction file delivery method is provided. The method comprises the following steps:
calculating a first hash of the transaction file through a transaction file making tool;
encrypting the transaction file through an electronic signature APP;
uploading the encrypted transaction file, the first hash, the transaction subject information and the transaction item information to a chain service device;
integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form an integral transaction file;
storing the encrypted whole transaction file and the transaction item information in a block chain node server;
when the mark is opened, the transaction center system acquires a corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performs whole decryption;
decrypting the encrypted transaction file, and calculating a third hash of the decrypted transaction file;
and comparing the first hash with the third hash, wherein the transaction file is valid when the first hash and the third hash are the same.
According to some embodiments of the application, the transaction file is encrypted by an electronic signature APP, including:
the transaction file is encrypted using a standard SM2 encryption algorithm and a symmetric key is generated.
According to some embodiments of the application, the bulk encryption comprises:
the whole encryption is performed using the public key of the transaction center system.
According to some embodiments of the present application, storing the encrypted whole transaction file and transaction item information in a blockchain nexus server comprises:
storing the encrypted whole transaction file and the transaction item information to a block chain node main server;
and the block chain node main server synchronizes the encrypted whole transaction file and the transaction item information to a block chain node backup server.
According to some embodiments of the application, the integral decryption comprises: the decryption is performed using the private key of the transaction center system.
According to some embodiments of the application, decrypting the encrypted transaction file comprises:
decrypting the digital envelope by using a private key of a transaction main body through the electronic signature APP to obtain a symmetric key and sending the symmetric key to a transaction center system;
the transaction center system decrypts the encrypted transaction file using the symmetric key.
According to some embodiments of the application, the transaction file delivery method further comprises:
when the first hash is different from the third hash, the trading center system receives the re-submitted trading file;
calculating a fourth hash of the re-submitted transaction file, and comparing the fourth hash with the first hash;
when the first hash is the same as the fourth hash, the resubmitted transaction file is valid;
when the first hash is different from the fourth hash, the resubmitted transaction file is invalid.
According to some embodiments of the application, the transaction file delivery method further comprises:
calculating a second hash of the encrypted transaction file;
and encrypting the first hash, the second hash, the transaction item information and the transaction center information through a chain service device to carry out chain storage.
According to some embodiments of the application, the transaction file delivery method further comprises:
manufacturing a two-dimensional code of the second hash;
and downloading the two-dimensional code of the second hash through an electronic signature APP, and looking up the synchronous information of the transaction file.
According to some embodiments of the application, the transaction file delivery method further comprises:
and carrying out digital envelope pre-decryption on the encrypted transaction file through the electronic signature APP so as to obtain a symmetric key in the digital envelope.
According to some embodiments of the application, the transaction file delivery method further comprises:
and importing the transaction file into a transaction file manufacturing tool.
The application also provides a transaction file transfer method based on the block chain, which comprises the following steps:
calculating a first hash of the transaction file;
calculating a second hash of the encrypted transaction file;
and uploading the encrypted transaction file, the first hash, the second hash, the transaction subject information, the transaction item information and the transaction center information to a chain service device.
According to some embodiments of the application, the transaction file delivery method further comprises:
and manufacturing the two-dimensional code of the second hash, and referring to the synchronous information of the transaction file.
The application also provides a transaction file transfer method based on the block chain, which comprises the following steps:
encrypting the transaction file in the transaction file making tool;
pre-decrypting the encrypted transaction file with a digital envelope to obtain a symmetric key in the digital envelope;
downloading a second hash two-dimensional code generated by a transaction file manufacturing tool, and looking up the synchronous information of the transaction file;
and decrypting the encrypted transaction file acquired by the transaction center system by using the private key of the transaction main body to acquire a symmetric key and transmitting the symmetric key to the transaction center system.
The application also provides a transaction file transfer method based on the block chain, which comprises the following steps:
receiving the encrypted transaction file, the first hash, a second hash of the encrypted transaction file, transaction subject information, transaction item information and transaction center information;
integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form an integral transaction file;
storing the encrypted whole transaction file and the transaction item information in a block chain node server;
and encrypting the first hash of the transaction file, the second hash of the encrypted transaction file, the transaction item information and the transaction center information to chain deposit certificate.
The application also provides a transaction file transfer method based on the block chain, which comprises the following steps:
when the mark is marked, transaction item information is sent to the block chain node server, and an encrypted whole transaction file which is sent by the block chain node server and corresponds to the transaction item information is received;
integrally decrypting the encrypted integral transaction file;
acquiring an encrypted transaction file;
acquiring a first hash of the transaction file;
decrypting the encrypted transaction file through the electronic signature APP, and calculating a third hash of the decrypted transaction file;
and comparing the first hash with the third hash, wherein the transaction file is valid when the first hash and the third hash are the same.
According to some embodiments of the application, the transaction file delivery method further comprises:
when the first hash is different from the third hash, calculating a fourth hash of the re-submitted transaction file, and comparing the fourth hash with the first hash;
when the first hash is the same as the fourth hash, the resubmitted transaction file is valid;
when the first hash is different from the fourth hash, the resubmitted transaction file is invalid.
The present application further provides a transaction file transfer device based on a block chain, including:
the file hash calculation module is used for calculating a first hash of the transaction file through the transaction file manufacturing tool;
the transaction file encryption module is used for encrypting the transaction file through an electronic signature APP;
the whole file uploading module is used for uploading the encrypted transaction file, the first hash, the transaction subject information and the transaction item information to a chain service device;
the whole file encryption module is used for integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form a whole transaction file;
the whole file storage module is used for storing the encrypted whole transaction file and the transaction item information in a block chain node server;
the whole file acquisition module is used for acquiring a corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performing whole decryption by the transaction center system during the bid opening;
the transaction file decryption module is used for decrypting the encrypted transaction file in the whole transaction file by the transaction center system;
and the file hash comparison module is used for calculating a third hash of the decrypted transaction file and comparing the first hash with the third hash, and when the first hash and the third hash are the same, the transaction file is valid.
According to some embodiments of the application, the transaction document delivery apparatus further comprises:
and the transaction file receiving module is used for receiving the re-submitted transaction file by the transaction center system when the first hash is different from the third hash.
According to some embodiments of the present application, the file hash comparison module is further configured to calculate a fourth hash of the resubmitted transaction file and compare the fourth hash with the first hash.
According to some embodiments of the present application, the file hash calculation module is further configured to calculate a second hash of the encrypted transaction file; and the integral file uploading module is also used for uploading the second hash and the information of the trading center to the chain service device.
According to some embodiments of the application, the transaction file delivery apparatus further comprises:
and the chain storing module is used for encrypting the chain storing certificate by the chain service device through the first hash, the second hash, the transaction item information and the transaction center information.
The present application further provides a transaction file transfer device based on a block chain, including:
the file hash calculation module is used for calculating a first hash of the transaction file and a second hash of the encrypted transaction file;
the whole file uploading module is used for uploading the encrypted transaction file, the first hash, the second hash, the transaction main body information, the transaction item information and the transaction center information to a chain service device;
and the two-dimension code manufacturing module is used for manufacturing the two-dimension code of the second hash.
The present application further provides a transaction file transfer device based on a block chain, including:
the transaction file encryption module is used for encrypting the transaction file in the transaction file manufacturing tool;
the transaction file pre-decryption module is used for pre-decrypting the encrypted transaction file by using a digital envelope to obtain a symmetric key in the digital envelope;
the two-dimension code consulting module is used for downloading a second hash two-dimension code generated by the transaction file manufacturing tool and consulting the synchronous information of the transaction file;
and the symmetric key acquisition module is used for decrypting the encrypted transaction file received by the transaction center system by using the private key of the transaction main body to obtain a symmetric key and sending the symmetric key to the transaction center system.
The present application further provides a transaction file transfer device based on a block chain, including:
the whole file receiving module is used for receiving the encrypted transaction file, the first hash, the second hash of the encrypted transaction file, transaction main body information, transaction item information and transaction center information;
the whole file encryption module is used for integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form a whole transaction file;
the whole file storage module is used for storing the encrypted whole transaction file and the transaction item information in a block chain node server;
and the chain storing module is used for encrypting the chain storing certificate by the first hash, the second hash, the transaction item information and the transaction center information.
The present application further provides a transaction file transfer device based on a block chain, including:
the whole file acquisition module is used for sending transaction item information to the block link point server and receiving an encrypted whole transaction file which is sent by the block link point server and corresponds to the transaction item information;
the whole file decryption module is used for wholly decrypting the encrypted whole transaction file to obtain the encrypted transaction file;
the transaction file decryption module is used for decrypting the encrypted transaction file through the electronic signature APP and calculating a third hash of the decrypted transaction file;
and the file hash comparison module is used for comparing the first hash with the third hash, and when the first hash and the third hash are the same, the transaction file is valid.
The present application further provides an electronic device, comprising: one or more processors; storage means for storing one or more programs; when executed by the one or more processors, cause the one or more processors to implement the transaction file delivery method described above.
The present application also provides a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the transaction file delivery method described above.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application.
FIG. 1A shows a first portion of a timing diagram of a transaction file delivery method according to an example embodiment of the present application.
FIG. 1B illustrates a first portion of a timing diagram for a transaction file delivery method according to an example embodiment of the present application.
Fig. 1C shows a schematic application diagram of a transaction file delivery method according to an example embodiment of the present application.
Fig. 2 shows a flowchart of a transaction file delivery method according to a first example embodiment of the present application.
Fig. 3 shows a flowchart of a transaction file delivery method according to a second example embodiment of the present application.
Fig. 4 is a flowchart of a transaction file delivery method according to a third exemplary embodiment of the present application.
Fig. 5 is a flowchart of a transaction file delivery method according to a fourth example embodiment of the present application.
Fig. 6 is a flowchart of a transaction file delivery method according to a fifth example embodiment of the present application.
Fig. 7 is a block diagram illustrating a transaction document delivery apparatus according to a first exemplary embodiment of the present application.
Fig. 8 is a block diagram illustrating a transaction document delivery apparatus according to a second exemplary embodiment of the present application.
Fig. 9 is a block diagram illustrating a transaction document delivery apparatus according to a third exemplary embodiment of the present application.
Fig. 10 is a block diagram illustrating a transaction document delivery apparatus according to a fourth exemplary embodiment of the present application.
Fig. 11 is a block diagram illustrating a transaction file transfer apparatus according to a fifth exemplary embodiment of the present application.
FIG. 12 illustrates a block diagram of a transaction file delivery electronic device, according to an example embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully hereinafter with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
It will be understood that, although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first component discussed below may be termed a second component without departing from the teachings of the present concepts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Those skilled in the art will appreciate that the drawings are merely schematic representations of exemplary embodiments, which may not be to scale. The blocks or flows in the drawings are not necessarily required to practice the present application and therefore should not be used to limit the scope of the present application.
Aiming at the problems of transaction subject information leakage, transaction files are tampered and the like in the transaction process, the application provides a transaction file transmission method based on a block chain, and by means of the characteristics of openness and transparency of the block chain and tampering prevention, the occurrence of secret leakage and tampering is avoided through encryption storage of the transaction subject information and comparison of hash values of the transaction files.
The technical solution of the present application will be described in detail below with reference to the accompanying drawings.
FIG. 1A shows a first portion of a timing diagram of a transaction file delivery method according to an example embodiment of the present application.
FIG. 1B illustrates a second portion of a transaction file delivery method timing diagram according to an example embodiment of the present application.
Fig. 1C shows a schematic application diagram of a transaction file delivery method according to an example embodiment of the present application.
As shown in fig. 1A, 1B, and 1C, the general flow of the transaction file delivery method provided by the present application includes:
the transaction agent imports the transaction document through the transaction document creation tool 120. A first hash of the transaction document, denoted h1, is calculated in the transaction document creation tool 120 for use in determining whether the transaction document has been tampered with when opened.
The transaction file in the transaction file creation tool 120 is encrypted by the electronic signature APP 110. For example, the transaction file may be encrypted using a standard SM2 encryption algorithm and a symmetric key may be generated.
The encrypted transaction file is pre-decrypted in the transaction file creation tool 120 through the electronic signature APP 110. The transaction subject user can pre-decrypt the encrypted transaction file through the electronic signature APP110 to ensure that the symmetric key in the digital envelope can be normally obtained. When the pre-decryption is unsuccessful, the transaction file needs to be re-imported. The reliability of the encrypted transaction file can be improved through pre-decryption, and the situation that decryption is unsuccessful when the mark is opened is avoided.
A second hash, denoted h2, of the encrypted transaction file is computed in the transaction file authoring tool 120. The transaction subject client can view the upload, synchronization status of the transaction file through h 2.
The encrypted transaction document, h1, h2, transaction subject information, transaction item information, and transaction center information are uploaded to the chain service device 130 in the transaction document creation tool 120. According to other embodiments of the present application, this information may also be stored locally; and selecting the information from the bidding system to submit when bidding.
The chain service device 130 encrypts the encrypted transaction file, h1 and the transaction subject information as a whole to form an encrypted whole transaction file. According to some embodiments of the present application, the chain service device 130 may be encrypted in its entirety using the public key of the transaction center system 150. Since the information of the transaction main body is stored in an encrypted manner, information leakage can be avoided. The chain service device 130 sends the encrypted whole transaction file and the item information to the blockchain node server 140. In addition, the received first hash of the transaction file, the encrypted second hash of the transaction file, the transaction item information and the transaction center information are encrypted and chain-linked for storage.
The two-dimensional code of the second hash is made in the transaction document making tool 120. The transaction subject client can download the two-dimensional code of the second hash through the electronic signature APP110, so as to look up the synchronous information of the transaction file.
After the whole encryption, the whole encrypted whole transaction file and the transaction item information are stored in the blockchain node server 140. According to some embodiments of the present application, as shown in fig. 1C, in order to further ensure the security of the whole transaction file, the encrypted whole transaction file and the transaction item information may be stored in the blockchain node main server 141, and then the blockchain node main server 141 synchronizes the encrypted whole transaction file and the transaction item information to the blockchain node backup server 142. The block link node server may be a fair node server, such as an authority server of a national center of confidence. The safety of transaction file storage can be improved through synchronous storage of the main server and the backup server.
And when the trade mark is marked, the trading center system 150 acquires the corresponding encrypted whole trade file from the block link point server according to the trade item information. The trading center system 150 sends the information of the current bid opening trading item to the block link point server 140. The blockchain nexus server 140 sends all encrypted whole transaction files associated with the transaction item to the transaction center system 150. The transaction center system 150 integrally decrypts the received encrypted whole transaction file using a private key of the transaction center system 150 and obtains the encrypted transaction file and the first hash. The symmetric key may be obtained by the electronic signature APP110 decrypting the encrypted transaction file using the private key of the transaction principal. The transaction center system 150 may decrypt the encrypted transaction file using the symmetric key.
After the trading center system 150 decrypts the trade file, a third hash, which may be denoted as h3, of the decrypted trade file is calculated. Comparing h1 with h3, when the two are the same, the transaction file can be judged to be valid. When h1 is not the same as h3, the trader client may resubmit the trading file to the trading center system 150.
After the clearinghouse system 150 receives the resubmitted transaction document, a fourth hash, which may be denoted as h4, of the resubmitted transaction document is calculated. Comparing h1 with h4, the resubmitted transaction file is valid when h1 is the same as h 4. When the h1 is different from the h4, the resubmitted trade file is invalid and the trade file is not adopted.
Fig. 2 shows a flowchart of a transaction file delivery method according to a first example embodiment of the present application.
The application provides a transaction file transfer method based on a block chain, as shown in fig. 2, including:
in step S210, a first hash of the transaction document, denoted as h1, is calculated by the transaction document creation tool for use in determining whether the transaction document is tampered with when opening the mark.
In step S220, the transaction file is encrypted through the electronic signature APP. For example, the transaction file may be encrypted using a standard SM2 encryption algorithm and a symmetric key may be generated.
In step S230, the encrypted transaction file, the first hash, the transaction subject information, and the transaction item information are uploaded to a chain service device.
In step S240, the chain service device encrypts the received encrypted transaction file, the first hash, and the transaction subject information as a whole to form a whole transaction file. According to some embodiments of the application, the chain service device may use a public key of the transaction center system for bulk encryption. Since the information of the transaction main body is stored in an encrypted manner, information leakage can be avoided.
In step S250, after the whole transaction file is encrypted, the encrypted whole transaction file and the transaction item information are stored in the blockchain node server. According to some embodiments of the present application, in order to further ensure the security of the whole transaction file, the encrypted whole transaction file and the transaction item information may be stored in the blockchain node main server, and then the blockchain node main server synchronizes the encrypted whole transaction file and the transaction item information to the blockchain node backup server. The block link point server may be a fair node server such as an authority server of a national center of confidence. The safety of transaction file storage can be improved through synchronous storage of the main server and the backup server.
In step S260, when opening the mark, the transaction center system obtains the corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performs whole decryption. And the trading center system sends the trading item information of the bid opening to the block link point server. And the block chain node server sends all encrypted whole transaction files related to the transaction item to the transaction center system. The encrypted integral transaction file is integrally decrypted to obtain the encrypted transaction file and the first hash;
at step S270, the clearinghouse system decrypts the encrypted transaction document and calculates a third hash, which may be denoted as h3, of the decrypted transaction document. And the transaction center system can obtain the encrypted transaction file and the first hash after receiving the decrypted whole transaction file. The symmetric key may be obtained by the electronic signature APP110 decrypting the encrypted transaction file using the private key of the transaction principal. The transaction center system may decrypt the encrypted transaction file using the symmetric key.
In step S280, the obtained first hash is compared with the calculated third hash, and when the obtained first hash and the calculated third hash are the same, the transaction file is valid. Comparing h1 with h3, when the two are the same, the transaction file can be determined to be valid, i.e. the transaction file is not tampered. According to some embodiments of the present application, when h1 is not the same as h3, the transaction subject user may re-submit the transaction document to the transaction center system by himself.
Fig. 3 shows a flowchart of a transaction file delivery method according to a second example embodiment of the present application.
According to a second exemplary embodiment of the present application, another transaction file delivery method based on a blockchain is provided, as shown in fig. 3, including:
in step S310, a first hash of the transaction file is calculated. The first hash may be denoted as h1 and is used to determine whether the transaction document is tampered when opening the label. According to some embodiments of the application, the transaction file may be encrypted using a standard SM2 encryption algorithm and a symmetric key may be generated.
At step S320, a second hash of the encrypted transaction file, denoted as h2, is computed. The transaction subject client can view the upload, synchronization status of the transaction file through h 2.
In step S330, the encrypted transaction file, the first hash, the second hash, the transaction subject information, the transaction item information, and the transaction center information are uploaded to a chain service device.
According to some embodiments of the present application, the method for transferring a transaction document may further include making a two-dimensional code of the second hash for referring to synchronization information of the transaction document.
Fig. 4 is a flowchart of a transaction file delivery method according to a third exemplary embodiment of the present application.
According to a third exemplary embodiment of the present application, another transaction file delivery method based on a blockchain is provided, as shown in fig. 4, including:
in step S410, the transaction file in the transaction file creation tool is encrypted.
In step S420, the encrypted transaction document is pre-decrypted with the digital envelope to obtain the symmetric key in the digital envelope.
In step S430, the two-dimensional code of the second hash generated by the transaction file creation tool is downloaded, and the synchronization information of the transaction file is referred to.
In step S440, the encrypted transaction file received by the transaction center system is decrypted by using the private key of the transaction subject to obtain a symmetric key, and the symmetric key is sent to the transaction center system.
Fig. 5 is a flowchart of a transaction file delivery method according to a fourth example embodiment of the present application.
According to a fourth exemplary embodiment of the present application, another transaction file delivery method based on a blockchain is provided, as shown in fig. 5, including:
in step S510, the encrypted transaction file, the first hash, the second hash of the encrypted transaction file, the transaction subject information, the transaction item information, and the transaction center information are received.
In step S520, the encrypted transaction file, the first hash, and the transaction body information are integrally encrypted to form an integral transaction file. According to some embodiments of the present application, the blockchain nexus server 140 may use the public key of the trading center system for bulk encryption. Since the information of the transaction main body is stored in an encrypted manner, information leakage can be avoided.
In step S530, after the whole transaction file is encrypted, the encrypted whole transaction file and the transaction item information are stored in the blockchain node server 140. In order to further ensure the security of the whole transaction file, the encrypted whole transaction file and the transaction item information may be stored in the blockchain node main server, and then the blockchain node main server synchronizes the encrypted whole transaction file and the transaction item information to the blockchain node backup server.
In step S540, the first hash of the transaction file, the second hash of the encrypted transaction file, the transaction item information, and the transaction center information are encrypted and uploaded to the chain for deposit.
Fig. 6 is a flowchart of a transaction file delivery method according to a fifth example embodiment of the present application.
According to a fifth exemplary embodiment of the present application, there is provided another transaction file delivery method based on a blockchain, as shown in fig. 6, including:
in step S610, when opening the bid, the transaction item information of this time of opening the bid is sent to the blockchain node server, and all encrypted whole transaction files related to the transaction item sent by the blockchain node server are received.
In step S620, the encrypted whole transaction file is wholly decrypted.
In step S630, the encrypted transaction file is acquired.
In step S640, a first hash of the transaction file is obtained.
In step S650, the encrypted transaction file is decrypted through the electronic signature APP, and a third hash of the decrypted transaction file is calculated.
In step S660, the obtained first hash is compared with the calculated third hash, and when the obtained first hash and the calculated third hash are the same, it may be determined that the transaction file is valid.
Fig. 7 is a block diagram illustrating a transaction document delivery apparatus according to a first exemplary embodiment of the present application.
The present application further provides a transaction file delivery apparatus 200 based on a block chain, as shown in fig. 7, including a file hash calculation module 210, a transaction file encryption module 220, an entire file uploading module 230, an entire file encryption module 240, an entire file obtaining module 250, an entire file storage module 260, a transaction file decryption module 270, and a file hash comparison module 280.
The file hash calculation module 210 is configured to calculate a first hash of the transaction file through the transaction file creation tool.
And the transaction file encryption module 220 is used for encrypting the transaction file through the electronic signature APP.
And an integral file uploading module 230, configured to upload the encrypted transaction file, the first hash, the transaction subject information, and the transaction item information to a chain service device.
And an integral file encryption module 240, configured to integrally encrypt the encrypted transaction file, the first hash, and the transaction subject information to form an integral transaction file.
And an entire file storage module 250, configured to store the encrypted entire transaction file and the transaction item information in a block link point server.
And the whole file acquisition module 260 is used for acquiring the corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performing whole decryption by the transaction center system during the bid opening.
And the transaction file decryption module 270 is used for decrypting the encrypted transaction file in the whole transaction file by the transaction center system.
And the file hash comparison module 280 is configured to calculate a third hash of the decrypted transaction file and compare the obtained first hash with the calculated third hash, where the transaction file is valid when the obtained first hash is the same as the calculated third hash.
Fig. 8 is a block diagram illustrating a transaction document delivery apparatus according to a second exemplary embodiment of the present application.
According to another embodiment of the present application, there is further provided a transaction document delivery apparatus 300 based on a block chain, as shown in fig. 8, including a document hash calculation module 310, an entire document uploading module 320, and a two-dimensional code making module 330
The file hash calculation module 310 is configured to calculate a first hash of the trade file and a second hash of the encrypted trade file.
And an integral file uploading module 320, configured to upload the encrypted transaction file, the first hash, the second hash, the transaction subject information, the transaction item information, and the transaction center information to a chain service device.
And the two-dimension code manufacturing module 330 is configured to manufacture the two-dimension code of the second hash.
Fig. 9 is a block diagram illustrating a transaction document delivery apparatus according to a third exemplary embodiment of the present application.
According to another embodiment of the present application, there is also provided a blockchain-based transaction file delivery apparatus 400, as shown in fig. 9, including a transaction file encryption module 410, a transaction file pre-decryption module 420, a two-dimensional code lookup module 430, and a symmetric key acquisition module 440.
A transaction file encryption module 410 for encrypting the transaction file in the transaction file creation tool;
the transaction file pre-decryption module 420 is used for pre-decrypting the encrypted transaction file by using a digital envelope to obtain a symmetric key in the digital envelope;
the two-dimensional code consulting module 430 is configured to download the two-dimensional code of the second hash generated by the transaction file making tool, and consult the synchronization information of the transaction file;
the symmetric key obtaining module 440 is configured to decrypt the encrypted transaction file received by the transaction center system using the private key of the transaction principal to obtain a symmetric key, and send the symmetric key to the transaction center system.
Fig. 10 is a block diagram illustrating a transaction document delivery apparatus according to a fourth exemplary embodiment of the present application.
According to another embodiment of the present application, there is also provided a blockchain-based transaction file delivery apparatus 500, as shown in fig. 10, including an entire file receiving module 510, an entire file encrypting module 520, an entire file storing module 530 and an upper chain credentialing module 540.
The whole file receiving module 510 is configured to receive the encrypted transaction file, the first hash, the second hash of the encrypted transaction file, the transaction subject information, the transaction item information, and the transaction center information.
And an integral file encryption module 520, configured to integrally encrypt the encrypted transaction file, the first hash, and the transaction subject information to form an integral transaction file.
And an entire file storage module 530, configured to store the encrypted entire transaction file and the transaction item information in the blockchain node server.
And an uplink certificate storing module 540, configured to encrypt the first hash of the transaction file, the second hash of the encrypted transaction file, the transaction item information, and the transaction center information to uplink certificate storing.
Fig. 11 is a block diagram illustrating a transaction file transfer apparatus according to a fifth exemplary embodiment of the present application.
According to another embodiment of the present application, there is also provided a block chain-based transaction file delivery apparatus 600, as shown in fig. 11, including an overall file obtaining module 610, an overall file decrypting module 620, a transaction file obtaining module 630, a first hash obtaining module 640, a transaction file decrypting module 650, and a file hash comparing module 660.
And the whole file acquisition module 610 is configured to send transaction item information to the block link point master server when the time is marked and receive a decrypted whole transaction file corresponding to the transaction item information and sent by the block link point server.
And an integral file decryption module 620, configured to decrypt the encrypted integral transaction file integrally.
A transaction file obtaining module 630, configured to obtain the encrypted transaction file. According to some embodiments of the application, the encrypted transaction file may be obtained after the decryption of the entire transaction file.
The first hash obtaining module 640 is configured to obtain a first hash of the transaction file. According to some embodiments of the application, the first hash of the transaction file may be obtained after the decryption of the entire transaction file. According to some embodiments of the present application, the first hash of the transaction file may also be obtained directly from the chain.
And the transaction file decryption module 650 is configured to decrypt the encrypted transaction file through the electronic signature APP, and calculate a third hash of the decrypted transaction file.
And the file hash comparison module 660 is configured to compare the first hash with the third hash, and when the first hash and the third hash are the same, the transaction file is valid.
FIG. 12 illustrates a block diagram of a transaction file delivery electronic device, according to an example embodiment of the present application.
The present application further provides a blockchain-based transaction file delivery electronic device 900. The electronic device 900 shown in fig. 12 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 12, the control device 900 is in the form of a general purpose computing device. The components of the control device 900 may include, but are not limited to: at least one processing unit 910, at least one memory unit 920, a bus 930 that couples various system components including the memory unit 920 and the processing unit 910, and the like.
The storage unit 920 stores program codes, which can be executed by the processing unit 910, so that the processing unit 910 executes the transaction file delivery method according to embodiments of the present application described in this specification.
The storage unit 920 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM)9201 and/or a cache memory unit 9202, and may further include a read only memory unit (ROM) 9203.
The electronic device 900 may also communicate with one or more external devices 9001 (e.g., a touch screen, keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 900, and/or with any devices (e.g., a router, modem, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interface 950. Also, the electronic device 900 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet) via the network adapter 960. The network adapter 960 may communicate with other modules of the electronic device 900 via the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the electronic device 900, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The present application also provides a computer readable medium having a computer program stored thereon, which when executed by a processor implements the above-described transaction file transfer method.
It should be understood that the above examples are only for clearly illustrating the present application and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention may be made without departing from the spirit or scope of the invention.
Claims (28)
1. A transaction file transfer method based on a blockchain is characterized by comprising the following steps:
calculating a first hash of the transaction file through a transaction file making tool;
encrypting the transaction file through an electronic signature APP;
uploading the encrypted transaction file, the first hash, the transaction subject information and the transaction item information to a chain service device;
integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form an integral transaction file;
storing the encrypted whole transaction file and the transaction item information in a block chain node server;
when the mark is opened, the transaction center system acquires a corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performs whole decryption;
decrypting the encrypted transaction file, and calculating a third hash of the decrypted transaction file;
and comparing the acquired first hash with the calculated third hash, wherein the transaction file is valid when the acquired first hash is the same as the calculated third hash.
2. The transaction file delivery method of claim 1, wherein encrypting the transaction file through an electronic signature (APP) comprises:
the transaction file is encrypted using a standard SM2 encryption algorithm and a symmetric key is generated.
3. The transaction file delivery method according to claim 1, wherein the bulk encryption includes:
the whole encryption is performed using the public key of the transaction center system.
4. The transaction file delivery method according to claim 1, wherein storing the encrypted whole transaction file and transaction item information in a blockchain nexus server comprises:
storing the encrypted whole transaction file and the transaction item information to a block chain node main server;
and the block chain node main server synchronizes the encrypted whole transaction file and the transaction item information to a block chain node backup server.
5. The transaction file delivery method of claim 1, wherein the integral decryption comprises:
the decryption is performed using the private key of the transaction center system.
6. The transaction file delivery method of claim 1, wherein decrypting the encrypted transaction file comprises:
decrypting the digital envelope by using a private key of a transaction main body through the electronic signature APP to obtain a symmetric key and sending the symmetric key to a transaction center system;
the transaction center system decrypts the encrypted transaction file using the symmetric key.
7. The transaction file delivery method according to claim 1, further comprising:
when the first hash is different from the third hash, the trading center system receives the re-submitted trading file;
calculating a fourth hash of the re-submitted transaction file, and comparing the fourth hash with the first hash;
when the first hash is the same as the fourth hash, the resubmitted transaction file is valid;
when the first hash is different from the fourth hash, the resubmitted transaction file is invalid.
8. The transaction file delivery method according to claim 1, further comprising:
calculating a second hash of the encrypted transaction file;
and encrypting the first hash, the second hash, the transaction item information and the transaction center information through a chain service device to carry out chain storage.
9. The transaction file delivery method according to claim 8, further comprising:
manufacturing a two-dimensional code of the second hash;
and downloading the two-dimensional code of the second hash through an electronic signature APP, and looking up the synchronous information of the transaction file.
10. The transaction file delivery method according to claim 1, further comprising:
and carrying out digital envelope pre-decryption on the encrypted transaction file through the electronic signature APP so as to obtain a symmetric key in the digital envelope.
11. The transaction file delivery method according to claim 1, further comprising:
and importing the transaction file into a transaction file manufacturing tool.
12. A transaction file transfer method based on a blockchain is characterized by comprising the following steps:
calculating a first hash of the transaction file;
calculating a second hash of the encrypted transaction file;
and uploading the encrypted transaction file, the first hash, the second hash, the transaction subject information, the transaction item information and the transaction center information to a chain service device.
13. The transaction file delivery method of claim 12, further comprising:
and manufacturing the two-dimensional code of the second hash, and referring to the synchronous information of the transaction file.
14. A transaction file transfer method based on a blockchain is characterized by comprising the following steps:
encrypting the transaction file in the transaction file making tool;
pre-decrypting the encrypted transaction file with a digital envelope to obtain a symmetric key in the digital envelope;
downloading a second hash two-dimensional code generated by a transaction file manufacturing tool, and looking up the synchronous information of the transaction file;
and decrypting the encrypted transaction file acquired by the transaction center system by using the private key of the transaction main body to acquire a symmetric key and transmitting the symmetric key to the transaction center system.
15. A transaction file transfer method based on a blockchain is characterized by comprising the following steps:
receiving the encrypted transaction file, the first hash, a second hash of the encrypted transaction file, transaction subject information, transaction item information and transaction center information;
integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form an integral transaction file;
sending the encrypted whole transaction file and the encrypted transaction item information to a block chain node server for storage;
and encrypting the first hash of the transaction file, the second hash of the encrypted transaction file, the transaction item information and the transaction center information to chain deposit certificate.
16. A transaction file transfer method based on a blockchain is characterized by comprising the following steps:
when the mark is marked, transaction item information is sent to the block chain node server, and an encrypted whole transaction file which is sent by the block chain node server and corresponds to the transaction item information is received;
integrally decrypting the encrypted integral transaction file;
acquiring an encrypted transaction file;
acquiring a first hash of the transaction file;
decrypting the encrypted transaction file through the electronic signature APP, and calculating a third hash of the decrypted transaction file;
and comparing the acquired first hash with the calculated third hash, wherein the transaction file is valid when the acquired first hash is the same as the calculated third hash.
17. The transaction file delivery method of claim 16, further comprising:
when the first hash is different from the third hash, calculating a fourth hash of the re-submitted transaction file, and comparing the fourth hash with the first hash;
when the first hash is the same as the fourth hash, the resubmitted transaction file is valid;
when the first hash is different from the fourth hash, the resubmitted transaction file is invalid.
18. A blockchain-based transaction file delivery apparatus, comprising:
the file hash calculation module is used for calculating a first hash of the transaction file through the transaction file manufacturing tool;
the transaction file encryption module is used for encrypting the transaction file through an electronic signature APP;
the whole file uploading module is used for uploading the encrypted transaction file, the first hash, the transaction subject information and the transaction item information to a chain service device;
the whole file encryption module is used for integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form a whole transaction file;
the whole file storage module is used for storing the encrypted whole transaction file and the transaction item information in a block chain node server;
the whole file acquisition module is used for acquiring a corresponding encrypted whole transaction file from the block link point server according to the transaction item information and performing whole decryption by the transaction center system during the bid opening;
the transaction file decryption module is used for decrypting the encrypted transaction file in the whole transaction file by the transaction center system;
and the file hash comparison module is used for calculating a third hash of the decrypted transaction file and comparing the first hash with the third hash, and when the first hash and the third hash are the same, the transaction file is valid.
19. The transaction document delivery apparatus according to claim 18, further comprising:
and the transaction file receiving module is used for receiving the re-submitted transaction file by the transaction center system when the first hash is different from the third hash.
20. The transactional file delivery apparatus of claim 19, wherein said file hash comparison module is further configured to calculate a fourth hash of said resubmitted transactional file and compare said fourth hash with said first hash.
21. The transaction document delivery apparatus according to claim 18,
the file hash calculation module is further configured to calculate a second hash of the encrypted transaction file;
and the integral file uploading module is also used for uploading the second hash and the information of the trading center to the chain service device.
22. The transaction document delivery apparatus according to claim 21, further comprising:
and the chain storing module is used for encrypting the chain storing certificate by the chain service device through the first hash, the second hash, the transaction item information and the transaction center information.
23. A blockchain-based transaction file delivery apparatus, comprising:
the file hash calculation module is used for calculating a first hash of the transaction file and a second hash of the encrypted transaction file;
and the whole file uploading module is used for uploading the encrypted transaction file, the first hash, the second hash, the transaction main body information, the transaction item information and the transaction center information to a chain service device.
And the two-dimension code manufacturing module is used for manufacturing the two-dimension code of the second hash.
24. A blockchain-based transaction file delivery apparatus, comprising:
the transaction file encryption module is used for encrypting the transaction file in the transaction file manufacturing tool;
the transaction file pre-decryption module is used for pre-decrypting the encrypted transaction file by using a digital envelope to obtain a symmetric key in the digital envelope;
the two-dimension code consulting module is used for downloading a second hash two-dimension code generated by the transaction file manufacturing tool and consulting the synchronous information of the transaction file;
and the symmetric key acquisition module is used for decrypting the encrypted transaction file received by the transaction center system by using the private key of the transaction main body to obtain a symmetric key and sending the symmetric key to the transaction center system.
25. A blockchain-based transaction file delivery apparatus, comprising:
the whole file receiving module is used for receiving the encrypted transaction file, the first hash, the second hash of the encrypted transaction file, transaction main body information, transaction item information and transaction center information;
the whole file encryption module is used for integrally encrypting the encrypted transaction file, the first hash and the transaction main body information to form a whole transaction file;
the whole file storage module is used for storing the encrypted whole transaction file and the transaction item information in a block chain node server;
and the chain storing module is used for encrypting the chain storing certificate by the first hash, the second hash, the transaction item information and the transaction center information.
26. A blockchain-based transaction file delivery apparatus, comprising:
the whole file acquisition module is used for sending transaction item information to the block link point server and receiving an encrypted whole transaction file which is sent by the block link point server and corresponds to the transaction item information;
the whole file decryption module is used for wholly decrypting the encrypted whole transaction file to obtain the encrypted transaction file and the first hash;
the transaction file decryption module is used for decrypting the encrypted transaction file through the electronic signature APP and calculating a third hash of the decrypted transaction file;
and the file hash comparison module is used for comparing the first hash with the third hash, and when the first hash and the third hash are the same, the transaction file is valid.
27. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the transaction file delivery method of any of claims 1-17.
28. A computer-readable medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the transaction file transfer method according to any one of claims 1-17.
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