CN110162984A - The method of calibration and system of electronic bidding data based on block chain - Google Patents
The method of calibration and system of electronic bidding data based on block chain Download PDFInfo
- Publication number
- CN110162984A CN110162984A CN201910368249.0A CN201910368249A CN110162984A CN 110162984 A CN110162984 A CN 110162984A CN 201910368249 A CN201910368249 A CN 201910368249A CN 110162984 A CN110162984 A CN 110162984A
- Authority
- CN
- China
- Prior art keywords
- block chain
- data
- information
- file
- file information
- 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
Classifications
-
- 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
-
- 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
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bioethics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses the methods of calibration and system of a kind of electronic bidding data based on block chain, wherein method includes: to obtain the electric bidding document the file information of supplier local in real time after electronic bidding file encryption is uploaded to Tender System；Block chain data are generated according to electric bidding document the file information, and block chain data are stored；Local electric bidding document the file information is verified according to block chain data, and check results are fed back into corresponding supplier.The present invention can guarantee the accuracy and authenticity of electric bidding document the file information, know that supplier with the presence or absence of dangerous act by the electric bidding document the file information after verifying, and there is a situation where directly can determine electric bidding document the file information in Tender System according to block chain data after divulging a secret and trace.
Description
Technical field
The present invention relates to bid technical field more particularly to a kind of methods of calibration of the electronic bidding data based on block chain
And system.
Background technique
E-bidding refers to that bidding and offering main body is main with electronic message according to the regulation of relevant laws and regulations of the state
Carrier, all or part of bid invitation and bidding activities completed with electronic means；E-bidding is submitted a tender with its low cost, efficiently
The features such as greatly developed.For this purpose, various e-bidding bidding systems come into being.
The process of existing e-bidding is the electronic bidding file for needing to weave before deadline for submission of tenders
It is forwarded to system.Because including the sensitive informations such as price, technical solution in electronic bidding file.To ensure that electronic bidding file is being opened
Safety before mark can encrypt electronic bidding file, to ensure the safety of electronic bidding file.But it is thrown in electronics
After marking file upload, the encryption of supplier's offer is based only on for the safety guarantee of electronic bidding file, supplier can not feel
Know whether electronic bidding file has and attempted the dangerous acts such as illegal download, duplication and decryption, it is difficult to is laggard divulging a secret
Row retrospect.
Summary of the invention
In view of the above problems, the present invention is proposed to throw in order to provide a kind of electronics based on block chain for overcoming the above problem
Mark the method for calibration and system of data.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of method of calibration of the electronic bidding data based on block chain, includes the following steps；
After electronic bidding file encryption is uploaded to Tender System, the electric bidding document text of supplier local is obtained in real time
Part information；
Block chain data are generated according to the electric bidding document the file information, and the block chain data are stored；
Local electric bidding document the file information is verified according to the block chain data, and check results are fed back to
Corresponding supplier.
As an embodiment, the electric bidding document the file information includes summary info, operation information and file
Status information.
As an embodiment, described according to electric bidding document the file information generation block chain data, including with
Lower step；
Summary info, operation information and file status information in the electric bidding document the file information is calculated by Hash
The cryptographic Hash that method obtains, and by the cryptographic Hash write-in block chain data body portion data；
The header data of body portion data and last block chain data is obtained into current block chain number by hash algorithm
According to header data；
Body portion data and the header data are synthesized into presently described block chain data.
As an embodiment, described that local electric bidding document the file information is carried out according to the block chain data
Verification, includes the following steps；
The body portion data for extracting current block in the block chain data, by body portion data and local Current electronic
Bid Documents information is verified.
As an embodiment, the method for calibration of the electronic bidding data provided by the invention based on block chain, also
Include the following steps；
After the electric bidding document the file information for obtaining supplier local in real time, the use information of key is obtained in real time, according to
The use information and electric bidding document the file information generate block chain data.
Correspondingly, the present invention also provides a kind of check system of electronic bidding data based on block chain, including obtain mould
Block, generation module and correction verification module；
The acquisition module, for obtaining supply in real time after electronic bidding file encryption is uploaded to Tender System
The electric bidding document the file information of quotient local；
The generation module, for generating block chain data according to the electric bidding document the file information, and to the block
Chain data are stored；
The correction verification module, for being verified according to the block chain data to local electric bidding document the file information,
And check results are fed back into corresponding supplier.
As an embodiment, the electric bidding document the file information includes summary info, operation information and file
Status information.
As an embodiment, the generation module includes the first computing unit, the second computing unit and synthesis
Unit；
First computing unit, for by the electric bidding document the file information summary info, operation information and
The cryptographic Hash that file status information is obtained by hash algorithm, and by the cryptographic Hash write-in block chain data body portion data；
Second computing unit, for the header data of body portion data and last block chain data to be passed through Hash
Algorithm obtains the header data of current block chain data；
The synthesis unit, for body portion data and the header data to be synthesized presently described block chain data.
As an embodiment, the correction verification module is also used to, and extracts current block in the block chain data
Body portion data verify body portion data and local Current electronic Bid Documents information.
As an embodiment, the generation module is also used to, in the electric bidding document for obtaining supplier local in real time
After the file information, the use information of key is obtained in real time, and block is generated according to the use information and electric bidding document the file information
Chain data.
Compared with prior art, the technical program has the advantage that
The method of calibration and system of electronic bidding data provided by the invention based on block chain, in real time by supplier's electronics
The relevant all kinds of electric bidding document the file informations of Bid Documents generate block chain data, and store to block chain data；It utilizes
Block chain data anti-tamper characteristic itself verifies original all kinds of electric bidding document files letter using the block chain data of storage
Breath makes supplier pass through the electric bidding document file after verifying to guarantee the accuracy and authenticity of electric bidding document the file information
Information knows with the presence or absence of dangerous act, and can directly be determined in Tender System according to block chain data after divulging a secret
The case where electric bidding document the file information, simultaneously traces.
Detailed description of the invention
Fig. 1 is the process signal of the method for calibration for the electronic bidding data based on block chain that the embodiment of the present invention one provides
Figure；
Fig. 2 is the structural representation of the check system for the electronic bidding data based on block chain that the embodiment of the present invention three provides
Figure；
Fig. 3 is the structural schematic diagram of generation module in Fig. 2.
In figure: 100, obtaining module；200, generation module；210, the first computing unit；220, the second computing unit；230,
Synthesis unit；300, correction verification module.
Specific embodiment
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned and other to the present invention are clearly and completely described,
Obviously, described embodiment is only section Example of the invention, rather than whole embodiments.
Referring to Fig. 1, the method for calibration for the electronic bidding data based on block chain that the embodiment of the present invention one provides, including
Following steps；
S100, after electronic bidding file encryption is uploaded to Tender System, in real time obtain supplier local electronics
Bid Documents information；
S200, block chain data are generated according to electric bidding document the file information, and block chain data is stored；
S300, local electric bidding document the file information is verified according to block chain data, and check results is fed back
To corresponding supplier.
It should be noted that supplier needs electronic bidding text before deadline for submission of tenders in Tender System
It is uploaded after part encryption, the electronic bidding file after upload is required to be related to decrypting in subsequent use process.Tender System can
Not store corresponding encryption and decryption key directly, can be by can contract go to call cipher machine to generate corresponding public key and close
Key, that is to say, that the requests such as encryption and decryption every time can be recorded.Other relevant information of electric bidding document file are also the same
It is recorded, can be obtained in real time after record.Electric bidding document the file information include be not limited to summary info, operation information and
File status information.As long as guaranteeing the accuracy of summary info, operation information and file status information in Tender System
And authenticity, supplier can be enhanced to the confidence of Tender System, and can be directly according to electric bidding document after divulging a secret
The file information is traced.
It in this present embodiment, is block chain data directly to be generated according to electric bidding document the file information, and store.Utilize block
The computer technologies features such as Distributed Storage, point-to-point transmission, common recognition mechanism, the Encryption Algorithm of chain itself, it is ensured that storage
Block chain data cannot be tampered.Local electric bidding document the file information is verified using the block chain data of storage,
And check results are fed back into corresponding supplier, it not only understand that whether local electric bidding document the file information is usurped
Change, additionally it is possible to know the record distorted every time, which data is tampered, and is more favorable for the retrospect when divulging a secret.For example, one
It is the record that other suppliers distort a bit, some is that can find reason according to check results caused by platform self reason, bright
True responsibility is more favorable for the maintenance of Tender System, improves the reliability of Tender System.
Electric bidding document the file information contains two parts content, that is, the content for encrypting and decrypting.Encryption and decryption can be
Block chain data are separately generated, is also possible to generate a block chain data together, to this and be not limited.And encryption reconciliation
Close can be using CA medium and CA certificate realization, be also possible in the way of cipher machine generation key.
The method of calibration and system of electronic bidding data provided by the invention based on block chain, in real time by supplier's electronics
The relevant all kinds of electric bidding document the file informations of Bid Documents generate block chain data, and store to block chain data；It utilizes
Block chain data anti-tamper characteristic itself verifies original all kinds of electric bidding document files letter using the block chain data of storage
Breath makes supplier pass through the electric bidding document file after verifying to guarantee the accuracy and authenticity of electric bidding document the file information
Information knows with the presence or absence of dangerous act, and can directly be determined in Tender System according to block chain data after divulging a secret
The case where electric bidding document the file information, simultaneously traces.
Further, block chain data are generated according to electric bidding document the file information in step S200, included the following steps；
S210, the summary info by electric bidding document the file information, operation information and file status information pass through Hash
The cryptographic Hash that algorithm obtains, and by cryptographic Hash write-in block chain data body portion data；
S220, the header data of body portion data and last block chain data is obtained into current block chain number by hash algorithm
According to header data；
S230, body portion data and header data are synthesized into current block chain data.
The minimum memory unit of block chain data is divided into two parts, respectively body portion and head, stores data, head in body portion
Store the cryptographic Hash or digital signature of a block chain data in portion；So each block chain data can be with a upper block chain
Data constitute strong association by head, equally all linked with one another just as chain, want to change some block chain data in chain
Value is without being found, then the block chain data on all chains after this block chain data will all be made an amendment, ability
Become legal data, because if you only change the data of current block chain data, just by the heads of the latter block chain data
It verified can come out, and chain increases in ceaselessly dynamic, the dynamic that interpolater can not stop chain increasing, and cannot modify on chain
Data without being found.The present invention utilizes the characteristic of block chain, and the summary info in electric bidding document the file information, operation are believed
Breath and file status information carry out hash algorithm and generate block chain data.It can ensure original electron Bid Documents by verification
The accuracy and authenticity of information in information.
Further, local electric bidding document the file information is verified according to block chain data, is included the following steps；
The body portion data for extracting current block in block chain data, by body portion data and local Current electronic Bid Documents
Information is verified.
The body portion data for first extracting current block in block chain data, count body portion data by Hash inverse algorithm
It calculates, and the data after calculating verifies local Current electronic Bid Documents information, if the two is identical, verify
Pass through, illustrates that dangerous act, the data safety in Tender System is not present.It, will be specific different if the two is different
Data feedback gives corresponding supplier, illustrates there are dangerous act, and the data in Tender System are dangerous.
Second embodiment of the present invention provides the methods of calibration of the electronic bidding data based on block chain, with one phase of embodiment
Than difference is, further comprising the steps of；
After the electric bidding document the file information for obtaining supplier local in real time, the use information of key is obtained in real time, according to
Use information and electric bidding document the file information generate block chain data.
In embodiment two, block chain data also contain the use information of key.When use information is since encryption
Terminate to decryption, user key using relevant information, use information include be not limited to using Key Tpe (public key and private
Key), the information (enterprise name and ID) of user, use time, the project of encryption and decryption and source of access etc..Improving key makes
Safety and authenticity.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of verification of electronic bidding data based on block chain
System, the process that the implementation of the system can refer to the above method is realized, it is no longer redundant later to repeat place.
As shown in Fig. 2, being the check system for the electronic bidding data based on block chain that the embodiment of the present invention three provides
Structural schematic diagram, including obtain module 100, generation module 200 and correction verification module 300；Module 100 is obtained to be used for by electronics
After tender documents encryption is uploaded to Tender System, the electric bidding document the file information of supplier local is obtained in real time；Generation module
200 for generating block chain data according to electric bidding document the file information, and stores to block chain data；Correction verification module 300
For verifying according to block chain data to local electric bidding document the file information, and check results are fed back into corresponding confession
Answer quotient.
The present invention can guarantee the accuracy and authenticity of electric bidding document the file information, and supplier is made to pass through the electricity after verifying
Sub- Bid Documents information knows with the presence or absence of dangerous act, and can directly be determined and be recruited according to block chain data after divulging a secret
It the case where electric bidding document the file information and is traced in bidding system.
Further, electric bidding document the file information includes summary info, operation information and file status information.
As shown in figure 3, being the structural schematic diagram of generation module 200, including the first computing unit 210, the second computing unit
220 and synthesis unit 230；First computing unit 210 is used for the summary info in electric bidding document the file information, operation information
And the cryptographic Hash that file status information is obtained by hash algorithm, and by cryptographic Hash write-in block chain data body portion data；
Second computing unit 220 is used to obtain the header data of body portion data and last block chain data to work as proparea by hash algorithm
The header data of block chain data；Synthesis unit 230 is used to body portion data and header data synthesizing current block chain data.
Further, correction verification module 300 is also used to, and the body portion data of current block in block chain data is extracted, by body portion
Data are verified with local Current electronic Bid Documents information.
In order to improve the safety and authenticity that key uses.Generation module 200 is also used to, and is obtaining supplier's sheet in real time
After the electric bidding document the file information on ground, the use information of key is obtained in real time, according to use information and electric bidding document the file information
Generate block chain data.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, anything that does not depart from the technical scheme of the invention, and according to the present invention
Technical spirit any simple modifications, equivalents, and modifications to the above embodiments, belong to technical solution of the present invention
Protection scope.
Claims (10)
1. a kind of method of calibration of the electronic bidding data based on block chain, which is characterized in that include the following steps；
After electronic bidding file encryption is uploaded to Tender System, the electric bidding document file letter of supplier local is obtained in real time
Breath；
Block chain data are generated according to the electric bidding document the file information, and the block chain data are stored；
Local electric bidding document the file information is verified according to the block chain data, and check results are fed back into correspondence
Supplier.
2. the method for calibration of the electronic bidding data based on block chain as described in claim 1, which is characterized in that the electronics
Bid Documents information includes summary info, operation information and file status information.
3. the method for calibration of the electronic bidding data based on block chain as described in claim 1, which is characterized in that the basis
The electric bidding document the file information generates block chain data, includes the following steps；
Summary info, operation information and file status information in the electric bidding document the file information is obtained by hash algorithm
The cryptographic Hash arrived, and by the cryptographic Hash write-in block chain data body portion data；
The header data of body portion data and last block chain data is obtained into current block chain data by hash algorithm
Header data；
Body portion data and the header data are synthesized into presently described block chain data.
4. the method for calibration of the electronic bidding data based on block chain as claimed in claim 3, which is characterized in that the basis
The block chain data verify local electric bidding document the file information, include the following steps；
The body portion data for extracting current block in the block chain data, by body portion data and local Current electronic bidding documents
The file information is verified.
5. the method for calibration of the electronic bidding data based on block chain as described in claim 1, which is characterized in that further include with
Lower step；
After the electric bidding document the file information for obtaining supplier local in real time, the use information of key is obtained in real time, according to described
Use information and electric bidding document the file information generate block chain data.
6. a kind of check system of the electronic bidding data based on block chain, which is characterized in that including obtaining module, generation module
And correction verification module；
The acquisition module, for obtaining supplier's sheet in real time after electronic bidding file encryption is uploaded to Tender System
The electric bidding document the file information on ground；
The generation module, for generating block chain data according to the electric bidding document the file information, and to the block chain number
According to being stored；
The correction verification module, for being verified according to the block chain data to local electric bidding document the file information, and will
Check results feed back to corresponding supplier.
7. the check system of the electronic bidding data based on block chain as claimed in claim 6, which is characterized in that the electronics
Bid Documents information includes summary info, operation information and file status information.
8. the check system of the electronic bidding data based on block chain as claimed in claim 6, which is characterized in that the generation
Module includes the first computing unit, the second computing unit and synthesis unit；
First computing unit, for by summary info, operation information and the file in the electric bidding document the file information
The cryptographic Hash that status information is obtained by hash algorithm, and by the cryptographic Hash write-in block chain data body portion data；
Second computing unit, for the header data of body portion data and last block chain data to be passed through hash algorithm
Obtain the header data of current block chain data；
The synthesis unit, for body portion data and the header data to be synthesized presently described block chain data.
9. the check system of the electronic bidding data based on block chain as claimed in claim 8, which is characterized in that the verification
Module is also used to, and extracts the body portion data of current block in the block chain data, by body portion data with it is local current
Electric bidding document the file information is verified.
10. the check system of the electronic bidding data based on block chain as claimed in claim 6, which is characterized in that the life
It is also used at module, after the electric bidding document the file information for obtaining supplier local in real time, obtains the use information of key in real time,
Block chain data are generated according to the use information and electric bidding document the file information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368249.0A CN110162984A (en) | 2019-05-05 | 2019-05-05 | The method of calibration and system of electronic bidding data based on block chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368249.0A CN110162984A (en) | 2019-05-05 | 2019-05-05 | The method of calibration and system of electronic bidding data based on block chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110162984A true CN110162984A (en) | 2019-08-23 |
Family
ID=67633433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368249.0A Pending CN110162984A (en) | 2019-05-05 | 2019-05-05 | The method of calibration and system of electronic bidding data based on block chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110162984A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111291122A (en) * | 2020-02-04 | 2020-06-16 | 重庆大学 | Competitive bidding method and device based on block chain |
| CN111414430A (en) * | 2020-04-24 | 2020-07-14 | 远光软件股份有限公司 | Commodity information management method based on block chain, electronic device and storage medium |
| CN111767582A (en) * | 2020-06-30 | 2020-10-13 | 平安国际智慧城市科技股份有限公司 | Block chain-based electronic bidding method, device, equipment and storage medium |
| CN117527191A (en) * | 2024-01-05 | 2024-02-06 | 北京泰尔英福科技有限公司 | Data verification method and system based on blockchain digital identity cellular module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249009A (en) * | 2017-08-02 | 2017-10-13 | 广东工业大学 | A kind of data verification method and system based on block chain |
| 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 |
| CN109711191A (en) * | 2018-12-20 | 2019-05-03 | 佛山市建宇工程招标代理有限公司 | It invites and submit bids method and system |
| CN109711836A (en) * | 2018-11-15 | 2019-05-03 | 远光软件股份有限公司 | A kind of storage method of transaction, storage network and electronic equipment |
-
2019
- 2019-05-05 CN CN201910368249.0A patent/CN110162984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249009A (en) * | 2017-08-02 | 2017-10-13 | 广东工业大学 | A kind of data verification method and system based on block chain |
| 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 |
| CN109711836A (en) * | 2018-11-15 | 2019-05-03 | 远光软件股份有限公司 | A kind of storage method of transaction, storage network and electronic equipment |
| CN109711191A (en) * | 2018-12-20 | 2019-05-03 | 佛山市建宇工程招标代理有限公司 | It invites and submit bids method and system |
Non-Patent Citations (1)
| Title |
|---|
| 黄民锦等: "区块链技术与招标投标制度", 《招标与投标》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111291122A (en) * | 2020-02-04 | 2020-06-16 | 重庆大学 | Competitive bidding method and device based on block chain |
| CN111291122B (en) * | 2020-02-04 | 2023-09-12 | 重庆大学 | Bidding method and device based on block chain |
| CN111414430A (en) * | 2020-04-24 | 2020-07-14 | 远光软件股份有限公司 | Commodity information management method based on block chain, electronic device and storage medium |
| CN111767582A (en) * | 2020-06-30 | 2020-10-13 | 平安国际智慧城市科技股份有限公司 | Block chain-based electronic bidding method, device, equipment and storage medium |
| CN117527191A (en) * | 2024-01-05 | 2024-02-06 | 北京泰尔英福科技有限公司 | Data verification method and system based on blockchain digital identity cellular module |
| CN117527191B (en) * | 2024-01-05 | 2024-03-22 | 北京泰尔英福科技有限公司 | Data verification method and system based on blockchain digital identity cellular module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110162984A (en) | The method of calibration and system of electronic bidding data based on block chain | |
| US10160251B1 (en) | Digitally encoded seal for document verification | |
| CN107194266B (en) | Method for verifying whether paper certificate is tampered | |
| US5872848A (en) | Method and apparatus for witnessed authentication of electronic documents | |
| US7178030B2 (en) | Electronically signing a document | |
| US8125697B2 (en) | Authentication of a laser shot in a holographic matrix | |
| JP2814923B2 (en) | Transaction processing system | |
| WO2017016318A1 (en) | Credible label generation and verification method and system based on asymmetric cryptographic algorithm | |
| US9531544B2 (en) | Two-dimensional bar code for ID card | |
| US20200186354A1 (en) | Digital composition hashing | |
| US6622247B1 (en) | Method for certifying the authenticity of digital objects by an authentication authority and for certifying their compliance by a testing authority | |
| JP2020516092A (en) | Composite two-dimensional barcode, electronic certificate medium, generation, reading device and method | |
| US20100005318A1 (en) | Process for securing data in a storage unit | |
| CN108363929B (en) | System and method for generating information elimination report of storage device and preventing tampering | |
| US8631235B2 (en) | System and method for storing data using a virtual worm file system | |
| CN107317806B (en) | Safe generation method and device for electronic certificate application copy | |
| CN111259439B (en) | Intangible asset management service platform based on block chain and implementation method thereof | |
| US10938574B2 (en) | Cryptographic font script with integrated signature for verification | |
| US7548665B2 (en) | Method, systems, and media for identifying whether a machine readable mark may contain sensitive data | |
| WO2016172982A1 (en) | Data recording method, device and system, and computer storage medium | |
| CN111369364A (en) | Electronic signature method and device based on super counter | |
| JP2002244555A (en) | Method, device, and program for detecting data falsification, and storage medium with stored program therefor | |
| JP4923388B2 (en) | Content certification system | |
| CN101661573B (en) | Method for producing electronic seal and method for using electronic seal | |
| JP2009535898A (en) | Secure signature |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |