CN109711191A - It invites and submit bids method and system - Google Patents
It invites and submit bids method and system Download PDFInfo
- Publication number
- CN109711191A CN109711191A CN201811564916.4A CN201811564916A CN109711191A CN 109711191 A CN109711191 A CN 109711191A CN 201811564916 A CN201811564916 A CN 201811564916A CN 109711191 A CN109711191 A CN 109711191A
- Authority
- CN
- China
- Prior art keywords
- data
- bidding document
- bidding
- obtains
- project
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
It invites and submit bids method and system the present invention relates to one kind, its method of inviting and submitting bids includes obtaining bid project to establish message, wherein it includes project planning data, personnel's reservoir data and Construction Cost Data that bid project, which establishes message, message is established according to bid project, obtains bidding document；According to bidding document, by digital digest technology in bidding document, each content is handled, and obtains digital digest corresponding with each content in bidding document；Each 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 bidding document block chain；After getting audit message, using decryption method corresponding with rivest, shamir, adelman, the data block in bidding document block chain is decrypted, pending file is obtained.The present invention has the effect of improving bidding document safety.
Description
Technical field
The present invention relates to the technical field of engineering management, invite and submit bids method and system more particularly, to one kind.
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 calling for tenders of project, government procurement) is exactly such a example.So-called long-range bid refers to through specified network media hair
The cloth call for tender sells e-bidding file, carries out the functions such as bidding document clarification, completes 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 method and system of inviting and submitting bids for improving bidding document safety.
Foregoing invention purpose one of the invention has the technical scheme that
It invites and submit bids method, comprising:
It obtains bid project and establishes message, wherein it includes project planning data, personnel's deposit number that the bid project, which establishes message,
According to and Construction Cost Data, message is established according to the bid project, obtains bidding document；
According to the bidding document, by digital digest technology in the bidding document, each content is handled, obtain with
The corresponding digital digest of each content in 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, bid project is established into project planning data, the personnel's deposit number that message includes
According to composition bidding document enables to the structure of bidding document more reasonable, while also improving middle target probability；It is utilized
The characteristic that can not be distorted of rivest, shamir, adelman and block chain technology, complete bidding document is stored on block chain, is mentioned
High bidding document safety, while ensure that the authenticity of the bidding document；Meanwhile distribution in block chain is utilized and deposits
The characteristic of storage can make the bidding document data storage structure more reasonable, convenient to transfer to the bidding document, simplify work
The process of journey data management.
The present invention is further arranged to: it further includes project content and engine request that the bid project, which establishes message, described
It obtains bid project and establishes message, it includes project planning data, personnel's reservoir data and engineering that the bid project, which establishes message,
Cost data establish message according to the project, obtain bidding document, comprising:
According to the project content, the project planning data are obtained；
According to the engine request, personnel's reservoir data is obtained；
According to the project content and the engine request, the Construction Cost Data is obtained；
According to the project planning data, personnel's reservoir data and the Construction Cost Data, the bidding document is obtained.
Corresponding project planning data, people are obtained according to project content and engine request by using above-mentioned technical proposal
Member's reservoir data and Construction Cost Data, it is more reasonable that the project that can be obtained establishes message.
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 Bidding-apprise System, comprising:
Bidding document obtains module, establishes message for obtaining bid project, wherein it includes item that the bid project, which establishes message,
Mesh layout data, personnel's reservoir data and Construction Cost Data establish message according to the bid project, obtain bidding document；
File acquisition module, for according to the bidding document, by digital digest technology in the bidding document, in each
Appearance is handled, and digital digest corresponding with each content in the bidding document is obtained；
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.
By using above-mentioned technical proposal, bid project is established into project planning data, the personnel's deposit number that message includes
According to composition bidding document enables to the structure of bidding document more reasonable, while also improving middle target probability；It is utilized
The characteristic that can not be distorted of rivest, shamir, adelman and block chain technology, complete bidding document is stored on block chain, is mentioned
High bidding document safety, while ensure that the authenticity of the bidding document；Meanwhile distribution in block chain is utilized and deposits
The characteristic of storage can make the bidding document data storage structure more reasonable, convenient to transfer to the bidding document, simplify work
The process of journey data management.
In conclusion advantageous effects of the invention are as follows:
1. bid project is established project planning data, the personnel's reservoir data that message includes, bidding document is formed, is enabled to
The structure of bidding document is more reasonable, while also improving middle target probability；
2. the characteristic that can not be distorted of rivest, shamir, adelman and block chain technology is utilized, it is stored on block chain complete
Bidding document improves bidding document safety, while ensure that the authenticity of the bidding document；
3. the characteristic of distributed storage in block chain is utilized, the bidding document data storage structure can be made more reasonable, side
Just the bidding document is transferred, simplifies the process of Engineering documents Management.
Detailed description of the invention
Fig. 1 is a flow chart of one embodiment of the invention Tender Based Bidding system.
Fig. 2 is the implementation flow chart in one embodiment of the invention Tender Based Bidding system to step S10.
Fig. 3 is the implementation flow chart in one embodiment of the invention Tender Based Bidding system to step S20.
Fig. 4 is the implementation flow chart in one embodiment of the invention Tender Based Bidding system to step S30.
Fig. 5 is the implementation flow chart in one embodiment of the invention Tender Based Bidding system to step S40.
Fig. 6 is a functional block diagram of one embodiment of the invention Tender Based bidding system.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one:
In one embodiment, as shown in Figure 1, being a kind of bidding and offering method disclosed by the invention, specifically comprise the following steps:
S10: it obtains bid project and establishes message, wherein it includes project planning data, personnel's deposit number that bid project, which establishes message,
According to and Construction Cost Data, message is established according to project, obtains bidding document.
In the present embodiment, bid project establishes the message that message refers to creation bidding for engineering project.Wherein, the bid item
It includes project planning data, personnel's reservoir data and Construction Cost Data that mesh, which establishes message,.Project planning refers to according to being thrown
The data of target engineering project progress preliminary planning.Personnel's reservoir data is that brainchild bears the engineering project submitted a tender
The data of the personnel of duty.Construction Cost Data refers to that the expense according to required for the engineering project submitted a tender carries out the number of budget
According to.
Specifically, message is established according to the bid project, obtains the bidding document.Bidding document refers to exist in an enterprise
When carrying out calling for tenders of project, to the bidding document of relevant department's offer.
S20: according to bidding document, by digital digest technology in bidding document, each content is handled, obtain with
The corresponding digital digest of each content in bidding document.
In the present embodiment, digital digest technology, i.e. hash algorithm, fixed length will be become for the message of random length by referring to
The short message of degree 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.
S30: 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.For each data summarization point
It is encrypted with corresponding private key, obtains data block corresponding with each data summarization.
S40: 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.
S50: 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 the present embodiment, bid project is established into project planning data, the personnel's reservoir data that message includes, composition is recruited
File is marked, enables to the structure of bidding document more reasonable, while also improving middle target probability；Asymmetric encryption is utilized
The characteristic that can not be distorted of algorithm and block chain technology, is stored with complete bidding document on block chain, improves bid text
Part safety, while ensure that the authenticity of the bidding document；Meanwhile the characteristic of distributed storage in block chain is utilized,
The bidding document data storage structure can be made more reasonable, it is convenient that the bidding document is transferred, simplify engineering data pipe
The process of reason.
In one embodiment, as shown in Fig. 2, in step slo, i.e. acquisition bid project establishes message, wherein bid item
It includes project planning data, personnel's reservoir data and Construction Cost Data that mesh, which establishes message, establishes message according to project, is recruited
File is marked, is specifically comprised the following steps:
S11: according to project content, project planning data are obtained.
In the present embodiment, project content refers to the particular content for the engineering project submitted a tender.
Specifically, according to the project content, which is planned in advance, obtains the project planning data.
S12: according to engine request, personnel's reservoir data is obtained.
In the present embodiment, engine request refers to the requirement of the engineering project.
Specifically, according to the engine request, responsible person is arranged for the engineering project, including the base of responsible person
This information and academic information, obtain personnel's reservoir data.
S13: according to project content and engine request, Construction Cost Data is obtained.
Specifically, according to the project content and engine request, budget is carried out to the bid project, obtains the project cost number
According to.
S14: according to project planning data, personnel's reservoir data and Construction Cost Data, bidding document is obtained.
Specifically, by the project planning data, personnel's reservoir data and Construction Cost Data, the bidding document is formed.
In one embodiment, as shown in figure 3, 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 4, 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 5, 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 Bidding-apprise System is provided, the Bidding-apprise System and above-described embodiment Tender Based tenderer
Method corresponds.As shown in fig. 6, the Bidding-apprise System includes that bidding document obtains module 10, file acquisition module 20, encryption
Core module 50 is tried in module 30, the audit reconciliation of message transmission module 40 secretly.Detailed description are as follows for each functional module:
Bidding document obtains module 10, establishes message for obtaining bid project, wherein Bidding-apprise System bid project is established
Message includes project planning data, personnel's reservoir data and Construction Cost Data, is established according to Bidding-apprise System bid project
Message obtains bidding document；
File acquisition module 20, for being to inviting and submitting bids by digital digest technology according to Bidding-apprise System bidding document
It unites in bidding document, each content is handled, and number corresponding with each content in Bidding-apprise System bidding document is obtained
Abstract；
Encrypting module 30 is obtained for being encrypted using rivest, shamir, adelman to each Bidding-apprise System data summarization
Data block corresponding with each data summarization；
Message transmission module 40 is audited, for being handled by block chain technology each Bidding-apprise System data block,
Bidding document block chain is obtained, and audit message is sent according to Bidding-apprise System bidding document block chain；
Decrypt auditing module 50, for get Bidding-apprise System audit message after, using non-right with Bidding-apprise System
Claim Encryption Algorithm corresponding decryption method, the data block in Bidding-apprise System bidding document block chain be decrypted,
Obtain the pending file of Bidding-apprise System.
Preferably, bidding document acquisition module 10 includes:
Project planning data acquisition submodule 11, for obtaining Bidding-apprise System item according to Bidding-apprise System project content
Mesh layout data；
Personnel's reservoir data acquisition submodule 12, for obtaining Bidding-apprise System people according to Bidding-apprise System engine request
Member's reservoir data；
Construction Cost Data acquisition submodule 13, for being wanted according to Bidding-apprise System project content and Bidding-apprise System engineering
It asks, obtains Bidding-apprise System Construction Cost Data；
Bidding document acquisition submodule 14, for according to Bidding-apprise System project planning data, personnel's reservoir data and bid
Bidding system Construction Cost Data obtains Bidding-apprise System bidding document.
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 about Bidding-apprise System limits the restriction that may refer to above for the method for inviting and submitting bids, herein not
It repeats again.Modules in above-mentioned Bidding-apprise System can be realized fully or partially through software, hardware and combinations thereof.On
Stating each module can be embedded in the form of hardware or independently of in the processor in computer equipment, can also store in a software form
In memory in computer equipment, the corresponding operation of the above modules is executed in order to which processor calls.
Claims (10)
1. method of inviting and submitting bids, which is characterized in that the method for inviting and submitting bids includes:
It obtains bid project and establishes message, wherein it includes project planning data, personnel's deposit number that the bid project, which establishes message,
According to and Construction Cost Data, message is established according to the bid project, obtains bidding document；
According to the bidding document, by digital digest technology in the bidding document, each content is handled, obtain with
The corresponding digital digest of each content in 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. method of inviting and submitting bids as described in claim 1, which is characterized in that it further includes engineering that the bid project, which establishes message,
Content and engine request, the acquisition bid project establish message, the bid project establish message include project planning data,
Personnel's reservoir data and Construction Cost Data establish message according to the project, obtain bidding document, comprising:
According to the project content, the project planning data are obtained；
According to the engine request, personnel's reservoir data is obtained；
According to the project content and the engine request, the Construction Cost Data is obtained；
According to the project planning data, personnel's reservoir data and the Construction Cost Data, the bidding document is obtained.
3. method of inviting and submitting bids as described in claim 1, which is characterized in that described to use rivest, shamir, adelman to each institute
It states data summarization to be encrypted, obtains 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.
4. inviting and submitting bids method as described in claim 1, which is characterized in that it is described by block chain technology to each number
It is handled according to block, 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.
5. method of inviting and submitting bids as described in claim 1, which is characterized in that the use and the rivest, shamir, adelman phase
The data block in the bidding document block chain is decrypted in corresponding decryption method, obtains the pending file, packet
It includes:
Obtain public key corresponding with the rivest, shamir, adelman；
The bidding document block chain is decrypted using the public key, obtains the pending file.
6. a kind of Bidding-apprise System, which is characterized in that the Bidding-apprise System includes:
Bidding document obtains module, establishes message for obtaining bid project, wherein it includes item that the bid project, which establishes message,
Mesh layout data, personnel's reservoir data and Construction Cost Data establish message according to the bid project, obtain bidding document；
File acquisition module, for according to the bidding document, by digital digest technology in the bidding document, in each
Appearance is handled, and digital digest corresponding with each content in the bidding document is obtained；
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.
7. Bidding-apprise System as claimed in claim 6, which is characterized in that the bidding document obtains module and includes:
Project planning data acquisition submodule, for obtaining the project planning data according to the project content；
Personnel's reservoir data acquisition submodule, for obtaining personnel's reservoir data according to the engine request；
Construction Cost Data acquisition submodule, for obtaining the engineering and making according to the project content and the engine request
Valence mumber evidence；
Bidding document acquisition submodule, for according to the project planning data, personnel's reservoir data and the project cost number
According to obtaining the bidding document.
8. Bidding-apprise 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.
9. Bidding-apprise System as claimed in claim 6, which is characterized in that the audit message transmission module 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.
10. Bidding-apprise 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564916.4A CN109711191A (en) | 2018-12-20 | 2018-12-20 | It invites and submit bids method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564916.4A CN109711191A (en) | 2018-12-20 | 2018-12-20 | It invites and submit bids method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109711191A true CN109711191A (en) | 2019-05-03 |
Family
ID=66256984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564916.4A Pending CN109711191A (en) | 2018-12-20 | 2018-12-20 | It invites and submit bids method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109711191A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110162984A (en) * | 2019-05-05 | 2019-08-23 | 政采云有限公司 | The method of calibration and system of electronic bidding data based on block chain |
| CN110335020A (en) * | 2019-07-03 | 2019-10-15 | 广东至衡工程管理有限公司 | Cost Data management method and system |
| CN110830452A (en) * | 2019-10-22 | 2020-02-21 | 全链通有限公司 | Block chain-based electronic bidding method, device and storage medium |
| CN111159769A (en) * | 2019-12-31 | 2020-05-15 | 杭州产链数字科技有限公司 | Building engineering cost supervision system and method based on block chain |
| 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 |
| CN112307504A (en) * | 2020-11-18 | 2021-02-02 | 成都佳华物链云科技有限公司 | Secure multi-party computing method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857487A (en) * | 2012-05-02 | 2013-01-02 | 四川建设网有限责任公司 | Method and system for remote tender invitation |
| US20170046698A1 (en) * | 2015-08-13 | 2017-02-16 | The Toronto-Dominion Bank | Systems and methods for establishing and enforcing transaction-based restrictions using hybrid public-private blockchain ledgers |
| CN106789927A (en) * | 2016-11-28 | 2017-05-31 | 华迪计算机集团有限公司 | A kind of on-line bid method and system |
| CN107947922A (en) * | 2017-11-29 | 2018-04-20 | 中国科学院合肥物质科学研究院 | A kind of digital archives management method and system based on block chain technology |
| CN108549819A (en) * | 2018-03-13 | 2018-09-18 | 中国地质大学（武汉） | A kind of bidding processing method and system based on block chain |
-
2018
- 2018-12-20 CN CN201811564916.4A patent/CN109711191A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857487A (en) * | 2012-05-02 | 2013-01-02 | 四川建设网有限责任公司 | Method and system for remote tender invitation |
| US20170046698A1 (en) * | 2015-08-13 | 2017-02-16 | The Toronto-Dominion Bank | Systems and methods for establishing and enforcing transaction-based restrictions using hybrid public-private blockchain ledgers |
| CN106789927A (en) * | 2016-11-28 | 2017-05-31 | 华迪计算机集团有限公司 | A kind of on-line bid method and system |
| CN107947922A (en) * | 2017-11-29 | 2018-04-20 | 中国科学院合肥物质科学研究院 | A kind of digital archives management method and system based on block chain technology |
| CN108549819A (en) * | 2018-03-13 | 2018-09-18 | 中国地质大学（武汉） | A kind of bidding processing method and system based on block chain |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110162984A (en) * | 2019-05-05 | 2019-08-23 | 政采云有限公司 | The method of calibration and system of electronic bidding data based on block chain |
| CN110335020A (en) * | 2019-07-03 | 2019-10-15 | 广东至衡工程管理有限公司 | Cost Data management method and system |
| CN110830452A (en) * | 2019-10-22 | 2020-02-21 | 全链通有限公司 | Block chain-based electronic bidding method, device and storage medium |
| CN111159769A (en) * | 2019-12-31 | 2020-05-15 | 杭州产链数字科技有限公司 | Building engineering cost supervision system and method based on block chain |
| 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 |
| CN112307504A (en) * | 2020-11-18 | 2021-02-02 | 成都佳华物链云科技有限公司 | Secure multi-party computing method and device, electronic equipment and storage medium |
| CN112307504B (en) * | 2020-11-18 | 2024-02-09 | 成都佳华物链云科技有限公司 | Secure multiparty computing method, device, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109711191A (en) | It invites and submit bids method and system | |
| CN108681898B (en) | Data transaction method and system based on block chain | |
| CN107911216B (en) | Block chain transaction privacy protection method and system | |
| CN106603233B (en) | Encryption and decryption method for remote bid opening type bidding system | |
| Naor et al. | Privacy preserving auctions and mechanism design | |
| CN110601816B (en) | Lightweight node control method and device in block chain system | |
| CN108650077B (en) | Block chain based information transmission method, terminal, equipment and readable storage medium | |
| CN110276613A (en) | Data processing equipment, method and computer readable storage medium based on block chain | |
| CN109345438A (en) | A kind of alliance of secret protection calls a taxi method and system | |
| CN109902494A (en) | Data encryption storage method, device and document storage system | |
| Kelsey et al. | Conditional purchase orders | |
| CN109685448A (en) | A kind of engineering project bidding Management method and system | |
| CN110197082A (en) | Data processing method, data processing equipment and computer system | |
| CN102663640A (en) | Remote bidding method and system | |
| CN113065961A (en) | Power block chain data management system | |
| Namasudra et al. | Achieving a decentralized and secure cab sharing system using blockchain technology | |
| CN113326541B (en) | Cloud edge collaborative multi-mode private data transfer method based on intelligent contract | |
| CN109377220B (en) | Block chain-based media data transaction method and system and computer storage medium | |
| CN109995737A (en) | The digital certificate management method and device of decentralization, node, system | |
| Xiong et al. | Anonymous auction protocol based on time-released encryption atop consortium blockchain | |
| CN110502931B (en) | Block chain-based internet arbitration and privacy protection method | |
| CN113949541B (en) | DDS (direct digital synthesizer) secure communication middleware design method based on attribute strategy | |
| CN114143306A (en) | Block chain-based bid document transmission method and transmission device | |
| Cha et al. | A blockchain-based privacy preserving ticketing service | |
| Sun et al. | Blockchain and homomorphic encryption for digital copyright protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190503 |
|
| RJ01 | Rejection of invention patent application after publication |