CN109685448A - A kind of engineering project bidding Management method and system - Google Patents
A kind of engineering project bidding Management method and system Download PDFInfo
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- CN109685448A CN109685448A CN201811426604.7A CN201811426604A CN109685448A CN 109685448 A CN109685448 A CN 109685448A CN 201811426604 A CN201811426604 A CN 201811426604A CN 109685448 A CN109685448 A CN 109685448A
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- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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Abstract
The present invention relates to the technical fields of engineering management, more particularly, to a kind of engineering project bidding Management method and system.Engineering project bidding Management method includes: acquisition bidding document, and is handled by digital digest technology each described bidding document, and data summarization corresponding with bidding document described in each respectively is obtained；Each described data summarization is encrypted using rivest, shamir, adelman, obtains data block corresponding with each data summarization；Each data block is handled by block chain technology, obtains bidding document block chain, and audit message is sent according to the bidding document block chain；After getting the audit message, using decryption method corresponding with the rivest, shamir, adelman, the data block in the bidding document block chain is decrypted, obtains the pending file.The present invention has the effect of improving bidding document safety.
Description
Technical field
The present invention relates to the technical fields of engineering management, more particularly, to a kind of engineering project bidding Management method and are
System.
Background technique
Currently, various network-based application services are rapidly developed with the maturation of Internet technology, it is long-range to recruit
Mark system (such as government procurement) is exactly such a example.So-called long-range bid refers to public by specified network media publication bid
It accuses, sells e-bidding file, carries out the functions such as bidding document clarification, complete solicitation campaign.
Existing tender management system haves the defects that certain, is mainly manifested in the Information Security to e-bidding file
Pay attention to not enough, there are the possibility that bidding document is tampered, and cause great security risk.
Summary of the invention
The object of the present invention is to provide a kind of engineering project bidding Management method and system for improving bidding document safety.
Foregoing invention purpose one of the invention has the technical scheme that
A kind of engineering project bidding Management method, the engineering project bidding Management method include:
Obtain bidding document, and each described bidding document handled by digital digest technology, obtain respectively with each
The corresponding data summarization of the bidding document；
Each described data summarization is encrypted using rivest, shamir, adelman, obtains data corresponding with each data summarization
Block；
Each data block is handled by block chain technology, obtains bidding document block chain, and according to the trick
It marks file block chain and sends audit message；
After getting the audit message, using decryption method corresponding with the rivest, shamir, adelman, to the trick
Data block in mark file block chain is decrypted, and obtains the pending file.
By using above-mentioned technical proposal, the spy that can not be distorted of rivest, shamir, adelman and block chain technology is utilized
Property, it is stored with complete bidding document on block chain, improves bidding document safety, while ensure that the bidding document
Authenticity；Meanwhile the characteristic of distributed storage in block chain is utilized, the bidding document data storage structure can be made more
Rationally, convenient that the bidding document is transferred, simplify the process of Engineering documents Management.
The present invention is further arranged to: it is described that each described data summarization is encrypted using rivest, shamir, adelman,
Obtain data block corresponding with each data summarization, comprising:
Obtain user identifier corresponding with the bidding document is sent；
According to the user identifier, the private key of the rivest, shamir, adelman is provided for the data summarization；
The data summarization is encrypted using the private key, obtains the data block.
Corresponding private is provided according to the corresponding user identifier of the bidding document is sent by using above-mentioned technical proposal
Key encrypts bidding document, that is, the technology of digital signature is utilized, and the bidding document is associated with user identifier,
Play the retrospective effect of the bidding document.
The present invention is further arranged to: it is described that each data block is handled by block chain technology, it obtains
Bidding document block chain, comprising:
Each described bidding document further includes the file deadline, according to the file deadline vertical sequence, is
The corresponding data block of the bidding document is ranked up；
According to ranking results, by the way that the corresponding file of upper one data block in each data block, is added
Each data block is formed chain structure, obtains the bidding document block chain by the deadline.
The corresponding block of every a bidding document, and root are obtained by block chain technology by using above-mentioned technical proposal
According to the sequence of file deadline, each block is formed into chain structure, the bidding document block chain is obtained, so that bidding document is deposited
Storage structure is more reasonable, while also ensuring the safety of bidding document.
The present invention is further arranged to: use decryption method corresponding with the rivest, shamir, adelman, to institute
The data block stated in bidding document block chain is decrypted, and obtains the pending file, comprising:
Obtain public key corresponding with the rivest, shamir, adelman；
The bidding document block chain is decrypted using the public key, obtains the pending file.
By using above-mentioned technical proposal, using public key corresponding with rivest, shamir, adelman, the i.e. public key and private key phase
It is corresponding, thus can while the decryption to the data in bidding document block chain, convenient for tracing the source of the pending file,
Issue the corresponding user of user identifier of the bidding document.
Foregoing invention purpose two of the invention has the technical scheme that
A kind of engineering project tender management system, the engineering project tender management system include:
File acquisition module, for obtaining bidding document, and by digital digest technology each described bidding document at
Reason, obtains data summarization corresponding with bidding document described in each respectively；
Encrypting module is obtained and every item data for being encrypted using rivest, shamir, adelman each described data summarization
It makes a summary corresponding data block；
Message transmission module is audited, for handling by block chain technology each data block, obtains bid text
Part block chain, and audit message is sent according to the bidding document block chain；
Auditing module is decrypted, for after getting the audit message, using corresponding with the rivest, shamir, adelman
The data block in the bidding document block chain is decrypted in decryption method, obtains the pending file.
In conclusion advantageous effects of the invention are as follows:
The characteristic that can not be distorted of rivest, shamir, adelman and block chain technology is utilized, complete trick is stored on block chain
File is marked, improves bidding document safety, while ensure that the authenticity of the bidding document；Meanwhile block chain is utilized
The characteristic of middle distributed storage can make the bidding document data storage structure more reasonable, the convenient tune to the bidding document
It takes, simplifies the process of Engineering documents Management.
Detailed description of the invention
Fig. 1 is a flow chart of engineering project bidding Management method in one embodiment of the invention.
Fig. 2 be in one embodiment of the invention in engineering project bidding Management method to the implementation flow chart of step S20.
Fig. 3 be in one embodiment of the invention in engineering project bidding Management method to the implementation flow chart of step S30.
Fig. 4 be in one embodiment of the invention in engineering project bidding Management method to the implementation flow chart of step S40.
Fig. 5 is a functional block diagram of engineering project tender management system in one embodiment of the invention.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one:
In one embodiment, it is a kind of engineering project bidding Management method disclosed by the invention, specifically comprises the following steps:
S10: obtaining bidding document, and handled by digital digest technology each bidding document, obtain respectively with each
The corresponding data summarization of bidding document.
In the present embodiment, bidding document refers in an enterprise when carrying out calling for tenders of project, provides to relevant department
Bidding document, wherein may include the historic performance situation of the enterprise, technical staff's qualification situation, engineering by planning and engineering
Account valuation etc..Digital digest technology, i.e. hash algorithm, the short of regular length will be become for the message of random length by, which referring to, disappears
Breath, obtains corresponding data summarization.
Specifically, it using the digital digest technology, is handled, is obtained and each bidding document pair for each bidding document
The data summarization answered.
S20: each data summarization is encrypted using rivest, shamir, adelman, is obtained corresponding with each data summarization
Data block.
Specifically, rivest, shamir, adelman includes the private key for encryption and the public key for decryption.It is plucked for every item data
It distributes corresponding private key to be encrypted, obtains data block corresponding with each data summarization.
S30: each data block is handled by block chain technology, obtains bidding document block chain, and according to trick
It marks file block chain and sends audit message.
In the present embodiment, bidding document block chain refers to the block chain for being stored with bidding document data.
Specifically, by block chain technology, each data block is formed into chain structure, obtains the bidding document block
Chain.After getting the bidding document block chain, which is formed into audit message, is sent to relevant department
Server-side, request the bidding document is audited.
S40: after getting audit message, using decryption method corresponding with rivest, shamir, adelman, to bid text
Data block in part block chain is decrypted, and obtains pending file.
In the present embodiment, while relevant department gets the audit message, it is non-right with the bidding document to obtain
Encryption Algorithm is claimed to think that corresponding public key is decrypted, the bidding document that decryption is obtained is as the pending file.
In one embodiment, as shown in Fig. 2, in step S20, i.e., using rivest, shamir, adelman to each data summarization
It is encrypted, obtains data block corresponding with each data summarization, specifically comprise the following steps:
S21: user identifier corresponding with bidding document is sent is obtained.
In this city implementation, user identifier refers to the mark for distinguishing each user.
Specifically, user identifier corresponding with bidding document is sent is obtained.
S22: according to user identifier, the private key of rivest, shamir, adelman is provided for data summarization.
Specifically, it according to the user identifier, by the way of data signature, is provided and the user identifier for the data summarization
The private key of corresponding rivest, shamir, adelman.
S23: data summarization is encrypted using private key, obtains data block.
Specifically, data summarization is encrypted using private key, obtains data block.
In one embodiment, as shown in figure 3, in step s 30, i.e., being carried out by block chain technology to each data block
Processing, obtains bidding document block chain, specifically comprises the following steps:
S31: each bidding document further includes the file deadline, according to file deadline vertical sequence, for bid
The corresponding data block of file is ranked up.
In the present embodiment, the file deadline refers to corresponding with each bidding document, and it is corresponding to complete this bidding document
Time.
Specifically, according to this document deadline, vertical sequence is completed corresponding from first item bidding document
The file deadline is ranked up the corresponding data block of bidding document.
S32: it according to ranking results, is completed by the way that the corresponding file of a upper data block in each data block, is added
Each data block is formed chain structure, obtains bidding document block chain by the time.
Specifically, using the corresponding data block of first item bidding document as the wound generation block of the bidding document block chain,
That is first block.
Further, it according to the ranking results, since second data block, in each data block, is added
The a upper data block corresponding file deadline obtains bid text to make to form chain structure between each data block
Part block chain.
In one embodiment, as shown in figure 4, in step s 40, that is, using decryption corresponding with rivest, shamir, adelman
Method is decrypted the data block in bidding document block chain, obtains pending file, specifically comprise the following steps:
S41: public key corresponding with rivest, shamir, adelman is obtained.
Specifically, in audit message, obtaining can be used in the data in the bidding document block chain are decrypted
Public key.
S42: bidding document block chain is decrypted using public key, obtains pending file.
In the present embodiment, pending file refers to the file for needing to carry out examination of bids.
Specifically, using the public key, the data block in bidding document block chain is decrypted, the number that decryption is obtained
According to that is, original bidding document, as the pending file.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Embodiment two:
In one embodiment, a kind of engineering project tender management system is provided, the engineering project tender management system and above-mentioned reality
Engineering project bidding Management method in example is applied to correspond.As shown in figure 5, the engineering project tender management system includes that file obtains
Core module 40 is tried in modulus block 10, encrypting module 20, the audit reconciliation of message transmission module 30 secretly.Each functional module is described in detail such as
Under:
File acquisition module 10 is handled each bidding document for obtaining bidding document, and by digital digest technology,
Obtain data summarization corresponding with each bidding document respectively；
Encrypting module 20 obtains plucking with every item data for encrypting each data summarization using rivest, shamir, adelman
Want corresponding data block；
It audits message transmission module 30 and obtains bidding document for handling by block chain technology each data block
Block chain, and audit message is sent according to bidding document block chain；
Auditing module 40 is decrypted, for using decryption side corresponding with rivest, shamir, adelman after getting audit message
Method is decrypted the data block in bidding document block chain, obtains pending file.
Preferably, encrypting module 20 includes:
Acquisition submodule 21 is identified, for obtaining user identifier corresponding with bidding document is sent；
Private key acquisition submodule 22, for providing the private key of rivest, shamir, adelman for data summarization according to user identifier；
It encrypts submodule 23 and obtains data block for encrypting using private key to data summarization.
Preferably, audit message transmission module 30 includes:
Sorting sub-module 31 further includes the file deadline for each bidding document, from front to back according to the file deadline
Sequence, be ranked up for the corresponding data block of bidding document；
Block chain forms submodule 32, is used for according to ranking results, by the way that a upper data block is added in each data block
Each data block is formed chain structure, obtains bidding document block chain by the corresponding file deadline.
Preferably, decryption auditing module 40 includes:
Public key acquisition submodule 41, for obtaining public key corresponding with rivest, shamir, adelman；
It decrypts submodule 42 and obtains pending file for bidding document block chain to be decrypted using public key.
Specific restriction about engineering project tender management system may refer to above for engineering project bidding Management
The restriction of method, details are not described herein.Modules in above-mentioned engineering project tender management system can be fully or partially through
Software, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the place in computer equipment
It manages in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution or more
The corresponding operation of modules.
Claims (8)
1. a kind of engineering project bidding Management method, which is characterized in that the engineering project bidding Management method includes:
Obtain bidding document, and each described bidding document handled by digital digest technology, obtain respectively with each
The corresponding data summarization of the bidding document；
Each described data summarization is encrypted using rivest, shamir, adelman, obtains data corresponding with each data summarization
Block；
Each data block is handled by block chain technology, obtains bidding document block chain, and according to the trick
It marks file block chain and sends audit message；
After getting the audit message, using decryption method corresponding with the rivest, shamir, adelman, to the trick
Data block in mark file block chain is decrypted, and obtains the pending file.
2. engineering project bidding Management method as described in claim 1, which is characterized in that described to use rivest, shamir, adelman
Each described data summarization is encrypted, data block corresponding with each data summarization is obtained, comprising:
Obtain user identifier corresponding with the bidding document is sent；
According to the user identifier, the private key of the rivest, shamir, adelman is provided for the data summarization；
The data summarization is encrypted using the private key, obtains the data block.
3. engineering project bidding Management method as described in claim 1, which is characterized in that it is described by block chain technology to every
A data block is handled, and bidding document block chain is obtained, comprising:
Each described bidding document further includes the file deadline, according to the file deadline vertical sequence, is
The corresponding data block of the bidding document is ranked up；
According to ranking results, by the way that the corresponding file of upper one data block in each data block, is added
Each data block is formed chain structure, obtains the bidding document block chain by the deadline.
4. engineering project bidding Management method as described in claim 1, which is characterized in that the use with it is described it is asymmetric plus
The corresponding decryption method of close algorithm, is decrypted the data block in the bidding document block chain, obtains described pending
Core file, comprising:
Obtain public key corresponding with the rivest, shamir, adelman；
The bidding document block chain is decrypted using the public key, obtains the pending file.
5. a kind of engineering project tender management system, which is characterized in that the engineering project tender management system includes:
File acquisition module, for obtaining bidding document, and by digital digest technology each described bidding document at
Reason, obtains data summarization corresponding with bidding document described in each respectively；
Encrypting module is obtained and every item data for being encrypted using rivest, shamir, adelman each described data summarization
It makes a summary corresponding data block；
Message transmission module is audited, for handling by block chain technology each data block, obtains bid text
Part block chain, and audit message is sent according to the bidding document block chain；
Auditing module is decrypted, for after getting the audit message, using corresponding with the rivest, shamir, adelman
The data block in the bidding document block chain is decrypted in decryption method, obtains the pending file.
6. engineering project tender management system as claimed in claim 6, which is characterized in that the encrypting module includes:
Acquisition submodule is identified, for obtaining user identifier corresponding with the bidding document is sent；
Private key acquisition submodule, for providing the rivest, shamir, adelman for the data summarization according to the user identifier
Private key；
It encrypts submodule and obtains the data block for encrypting using the private key to the data summarization.
7. engineering project tender management system as claimed in claim 6, which is characterized in that the audit message transmission module packet
It includes:
Sorting sub-module further includes the file deadline for bidding document described in each, according to the file deadline from
The sequence of front to back is ranked up for the corresponding data block of the bidding document；
Block chain forms submodule, is used for according to ranking results, by the way that a upper number is added in each data block
According to the block corresponding file deadline, each data block is formed into chain structure, obtains the bidding document
Block chain.
8. engineering project tender management system as claimed in claim 6, which is characterized in that the decryption auditing module includes:
Public key acquisition submodule, for obtaining public key corresponding with the rivest, shamir, adelman；
It decrypts submodule and obtains the pending text for the bidding document block chain to be decrypted using the public key
Part.
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| CN109871678A (en) * | 2019-01-29 | 2019-06-11 | 广东华伦招标有限公司 | Procurement business data ciphering method, device, equipment and storage medium |
| CN110503523A (en) * | 2019-08-23 | 2019-11-26 | 宁夏神州好易信息发展股份有限公司 | A kind of e-bidding purchasing system based on block chain technology |
| CN112116222A (en) * | 2020-09-01 | 2020-12-22 | 上海康诚建设工程咨询有限公司 | Engineering project bid inviting management method, system, terminal equipment and storage medium |
| CN112150143A (en) * | 2020-08-07 | 2020-12-29 | 北京乐智科技有限公司 | Capital management method and device based on block chain technology |
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Application publication date: 20190426 |