CN114493805A

CN114493805A - Bidding and performing method and system based on block chain

Info

Publication number: CN114493805A
Application number: CN202111611254.3A
Authority: CN
Inventors: 丁云波; 黄平; 刘斌; 陈伟; 李文焕; 王建明; 杨金晓; 刘一帆
Original assignee: Sichuan Huaxi Jicai E Commerce Co ltd
Current assignee: Sichuan Huaxi Jicai E Commerce Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-13

Abstract

The application relates to a block chain-based bidding fulfillment method and system, which are based on a block chain technology, and are used for completing uplink operation on bidding fulfillment certification materials so as to ensure the authenticity and reliability of data, and synchronously completing encryption operation in a data uploading process, wherein the encryption operation comprises the following steps: splitting the certification material according to a splitting rule to form a plurality of split files; setting a decryption code for each split file independently; uploading split files for a plurality of times within a certain time period, wherein the uploading sequence is asynchronous with the splitting sequence; in the uploading process, the decryption codes and the splitting rules of the sent split files and the unsent split files are uploaded to the tenderer at one time; the split file is uploaded synchronously based on a block chain technology, and the decryption code and the splitting rule are sent based on a one-to-one private key mode. Thus, the data security is improved.

Description

Bidding and performing method and system based on block chain

Technical Field

The application relates to the technical field of bidding, in particular to a bidding fulfillment method and system based on a block chain.

Background

Bidding is a term of art for bidding, and refers to the act of submitting a bid to a bidder within a specified time limit according to a condition specified by a bid notice or a bid invitation. Most national government agencies and utilities purchase equipment, materials, and commodities by tender. Bidding is also commonly used when resource exploration, mineral deposit development or recruiting underwriting projects are performed. Basic practice of bidding: the bidder first obtains a bidding document, carefully analyzes and studies the bidding document (for field investigation), and creates a bidding document. The bidding document is essentially a release or initial composition writing from the validity period to the specified bidding opening date, the content must be very clear, the important content to be included in the contract with the tenderer after winning the bid should be listed completely, and the bidding document should not be withdrawn, the bidding document quotation should be changed or the bidding document content should not be substantially modified within the validity period. To prevent bidders from withdrawing bids after bidding or refusing to contract after winning a bid, bidders typically require bidders to provide a proportion or amount of a bid guarantee. After the bidder decides the successful bidder, the tender who did not win the bid returns the deposit paid by the bidder.

After winning a bid, for bidders, a process of performing is involved, and for the present time, bidding performing is generally supervised by an organization with the property of a special supervision unit, but in general, the bidding performing is also managed manually, so that many variables exist when manual management is involved, which is that the authenticity and reliability of performing are doubtful, and data uploading based on the block chain technology can effectively ensure the authenticity of data, but the disadvantage is that the data security is not high due to the open structure of the data adopted by the block chain.

Disclosure of Invention

The purpose of the application is to overcome the defects of the prior art, and provide a bidding fulfillment method and system based on a block chain, which can not only improve the authenticity of data, but also meet the security of the data.

The purpose of the application is realized by the following technical scheme:

in a first aspect, the present application provides a block chain-based bid fulfillment method, including:

s101: determining that the bidder has bid, inputting each index of the bid, and synchronizing each index to the bidder, the tenderer and the proctoring party based on a block chain technology;

s102: the bidder initiates the certification material of each index of performance and synchronizes to the bidder and the proctoring party, wherein the certification material is uploaded while synchronously completing the encryption operation, and the encryption operation comprises the following steps:

splitting the certification material according to a splitting rule to form a plurality of split files;

setting a decryption code for each split file independently;

uploading split files for a plurality of times within a certain time period, wherein the uploading sequence is asynchronous with the splitting sequence;

in the uploading process, the decryption codes and the splitting rules of the sent split files and the unsent split files are uploaded to the tenderer one time;

the split file is uploaded synchronously based on a block chain technology, and the decryption code and the splitting rule are sent based on a one-to-one private key mode;

s103: the tenderer sends the decrypted codes and the splitting rules to the supervisor in a private key mode, the supervisor obtains complete certification materials after decryption and gives judgment on whether the certification materials reach the standard or not, wherein the supervisor comprises a field verification process and gives judgment on the basis of field verification;

s104: the bidder makes a plan of whether to continue executing the performance according to the evaluation of the tenderer and the supervisor and reports the plan to the tenderer and the supervisor;

s105: and repeating S102-S104 until all indexes reach the standard, and determining that the bidding performance is completed.

The method is characterized in that a data encryption operation is added in the data chaining process, an asymmetric asynchronous encryption mode is adopted, the file processing is carried out in the splitting and encryption links, and the decryption and private key sending mode is combined, so that double encryption is formed, the decryption codes and the splitting rules upload the decryption codes and the splitting rules of the split files which are sent and the split files which are not sent to a tenderer at one time in the uploading process, so that a third party cannot obtain a correct decryption mode or the true files cannot be sent at all, and the safety is improved.

Further, the uploading of the decryption key and the splitting rule must be completed before all the split files are uploaded.

Further, the splitting rule includes:

randomly splitting according to the types of the certification materials, wherein the certification materials of the same type are split into at least three parts;

alternatively, the material is randomly or fixedly split by document size of the certification material.

Further, the type of the certification material includes a document, a video, and a picture.

Further, the random or fixed splitting of the file size of the certified material specifically means that the split files have the same size or are generated randomly in size.

Further, the certain period of time must be before the bid performance agreement date.

Further, the private key between the tenderer and the proctoring party and the corresponding public key of the private key between the tenderer and the bidder are uploaded synchronously based on the block chain technology.

A second aspect of the present application further provides a block chain-based bid fulfillment system for implementing the method according to the first aspect, the system comprising:

an input device for inputting certification material and creating a splitting rule and an encryption rule;

the data splitting module splits the proving material according to the splitting rules and the proving material and the splitting rules input by the input equipment to form a plurality of splitting files;

the encryption module is used for encrypting the split file in response to an encryption rule created by the input equipment;

the data uploading module uploads the encrypted split file;

the block chain module is used for responding to the split file uploaded by the data uploading module to finish the chaining operation of the split file;

a server for storing the uplink data;

and the plurality of clients are used for finishing the access and the downloading of the uplink data.

Further, the input device comprises a mouse, a keyboard and a touch screen.

Further, the server comprises a memory and a processor, the memory storing a computer program, the computer program when executed in the processor performing the method according to the first aspect.

The beneficial effect of this application is: compared with the traditional block chain technology, the uplink process provided by the application completes asymmetric asynchronous encryption, and the decryption process also increases interference items, so that the public can not or the real materials, the reality and the effectiveness of the data are ensured, and the safety of the data is improved.

Drawings

FIG. 1 is a schematic flow diagram of the claimed invention;

FIG. 2 is a block diagram of a system according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a server according to the present application.

Detailed Description

The technical solution of the present application is further described in detail with reference to the following specific examples, but the scope of the present application is not limited to the following.

As shown in fig. 1, a first aspect of the present application provides a block chain-based bid fulfillment method, including:

setting a decryption code for each split file independently;

s103: the tenderer sends the decryption code and the splitting rule to the supervisor in a private key mode, the supervisor obtains complete certification materials after decryption and gives judgment on whether the certification materials reach the standard or not, wherein the supervisor comprises a field verification process and gives judgment on the basis of field verification;

s104: the bidder makes a plan for continuing performing the performance according to the judgments of the tenderer and the supervisor and reports the plan to the tenderer and the supervisor;

It should be noted that, in order to improve the security, the present embodiment also provides a so-called agreement of the time node of uploading the document, that is, when the bidder uploads the certification material, the bidder must inform the last time node of uploading the certification document in advance, and complete the combination and decryption of the split document with the node as the limit, the document after the node is regarded as an interference document, that is, after the time node, the bidder must send several interference documents, and there is only a slight difference between the interference document and the true split document, so that other public cannot distinguish the true and false, and thus cannot crack and obtain the complete certification document, so as to improve the security of the certification document. Alternatively, in some embodiments, a certain time period must precede the bid fulfillment contract day, i.e., the last time node must precede the bid fulfillment contract day.

Optionally, in some embodiments, the uploading of the decryption key and the splitting rule must be completed before all the split files are uploaded, as described above, before all the files are not uploaded, the third party knows that the file cannot be uploaded or is proved to be completely uploaded, and there are no interference items, which all improve the security of the data.

Optionally, in some embodiments, the splitting rule includes: randomly splitting according to the type of the certification material, wherein the same type of certification material is split into at least three parts; or, splitting randomly or fixedly according to the file size of the certification material, specifically, splitting randomly or fixedly according to the file size of the certification material means that the split files have the same size, or are generated randomly. The types of the certification material include documents, videos, and pictures.

Optionally, in some embodiments, the private key between the tenderer and the proctoring party and the corresponding public key of the private key between the tenderer and the bidder are uploaded simultaneously based on a blockchain technique.

As shown in fig. 2, the second aspect of the present application further provides a block chain-based bid fulfillment system for implementing the method according to the first aspect, the system comprising: an input device for inputting certification material and creating a splitting rule and an encryption rule; the data splitting module splits the certification material according to the splitting rules to form a plurality of splitting files corresponding to the certification material and the splitting rules input by the input equipment; the encryption module is used for encrypting the split file in response to an encryption rule created by the input equipment; the data uploading module uploads the encrypted split file; the block chain module is used for responding to the split file uploaded by the data uploading module to finish the uplink operation of the split file; a server for storing uplink data; and the plurality of clients are used for finishing the access and the downloading of the uplink data. The client can be realized in an APP mode or a special electronic device.

Optionally, in some embodiments, the input device includes a mouse, a keyboard, and a touch screen.

Further optionally, in some embodiments, the server comprises a memory and a processor, the memory storing a computer program that when executed in the processor is performed as the method of the first aspect. Fig. 3 is a schematic diagram of a server according to an embodiment of the present application. As shown in fig. 3, the server of this embodiment includes: a processor, a memory, and a computer program, such as a push messaging program, stored in the memory and operable on the processor. The processor, when executing the computer program, implements the steps in the above-described embodiments of the feature point extraction method in each dynamic scene, for example, steps S101 to S107 shown in fig. 1. Alternatively, the processor, when executing the computer program, implements the functions of each module/unit in the above-described apparatus embodiments.

Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in a memory and executed by a processor to accomplish the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the server. For example, the computer program may be divided into an acquisition module, an analysis module, a search module, and a push module, and each module has the following specific functions:

the server may be a desktop computer, a notebook, a palm top computer, or other computing device. The server may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the present embodiment is merely an example of a server and is not meant to be limiting, and may include more or less components than those shown, or some components may be combined, or different components, e.g., a server may also include input and output devices, network access devices, buses, etc.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage may be an internal storage unit of the server, such as a hard disk or a memory of the server. The memory may also be an external storage device of the server, such as a plug-in hard disk provided on the server, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory may also include both an internal storage unit of the server and an external storage device. The memory is used for storing computer programs and other programs and data required by the server. The memory may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned functional units and modules are illustrated as examples, and in practical applications, the above-mentioned functions may be distributed as required to different functional units and modules, that is, the internal structure of the device may be divided into different functional units or modules to complete all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described or recited in detail in a certain embodiment, reference may be made to the descriptions of other embodiments.

Those of ordinary skill in the art would appreciate that the elements and algorithm steps of the various embodiments described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed server and method may be implemented in other ways. For example, the above-described server embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, and software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.

The foregoing is illustrative of the preferred embodiments of this application, and it is to be understood that this application is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments and that various other combinations, modifications, and environments may be used, and changes may be made within the scope of the inventive concept as described herein, by the above teachings or by the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. A block chain-based bid fulfillment method, comprising:

setting a decryption code for each split file independently;

in the uploading process, the decryption codes and the splitting rules of the sent split files and the unsent split files are uploaded to the tenderer at one time;

2. The method of claim 1, wherein uploading of decryption codes and splitting rules must be completed before all split files are uploaded.

3. The method of claim 1, wherein the splitting rule comprises:

randomly splitting according to the type of the certification material, wherein the same type of certification material is split into at least three parts;

4. The method of claim 3, wherein the type of certification material comprises document, video, and picture.

5. The method of claim 3, wherein the random or fixed splitting of the document size of the certified material means that the split documents are the same size or randomly generated.

6. The method of claim 1, wherein the predetermined period of time is before a bid fulfillment contract date.

7. The method as claimed in claim 1, wherein the private key between the tenderer and the proctoring party and the corresponding public key between the tenderer and the bidder are uploaded simultaneously based on a blockchain technique.

8. A blockchain-based bid fulfillment system for implementing the method of any of claims 1-7, the system comprising:

the data splitting module splits the certification material according to the splitting rules to form a plurality of splitting files corresponding to the certification material and the splitting rules input by the input equipment;

the data uploading module uploads the encrypted split file;

the block chain module is used for responding to the split file uploaded by the data uploading module to finish the uplink operation of the split file;

a server for storing the uplink data;

9. The system of claim 8, wherein the input device comprises a mouse, a keyboard, and a touch screen.

10. The blockchain-based bid fulfillment system according to claim 8, wherein said server comprises a memory and a processor, said memory storing a computer program, said computer program when executed on said processor performing the method according to any one of claims 1-7.