CN108733783A - A kind of student status information management system based on privately owned block chain - Google Patents
A kind of student status information management system based on privately owned block chain Download PDFInfo
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Abstract
The invention discloses a kind of Student Status Management Systems based on privately owned block chain, including：Administrator system handles node with multiple student side student status；The Administrator system is managed monitoring on student status processing node to student to the typing and modification of student status, the student side student status processing node carries out the typing and modification of student status for student on this node, is additionally operable to store the student status information of student；Between the student side student status processing node and student side student status processing node, connection composition student status net is communicated between student side student status processing node and Administrator system；The fraud of student status information and the possibility of student status operating mistake can be reduced by the system, and by the technology of block chain, greatly increase the cost of distorting for distorting student status information, and reduce the maintenance cost of student status system.
Description
Technical field
The present invention relates to block chain technical field, especially a kind of student status information management system based on privately owned block chain.
Background technology
Block chain (Blockchain) is a key concept of bit coin, is substantially the data of a decentralization
Library, while as the Floor layer Technology of bit coin.Block chain is a string of data blocks using the associated generation of cryptography method, each
The information that a bit coin network trading is contained in a data block, validity (anti-fake) for verifying its information and under generating
One block.
Block chain technology, block chain are the Floor layer Technologies of the digital cash such as bit coin, ether coin, and being that one kind is novel goes to center
Change information technology, can safely store number transaction or other data, information can not forge and distort.Transaction on block chain is true
Recognize to be known together by all nodes on block chain and complete, write-in block is packaged after knowing together successfully.Block chain safeguards a public point
Cloth account book, a kind of chained record knot that data block is combined by this account book in a manner of daisy chaining sequentially in time
Structure, and ensure that it can not distort and can not forge in a manner of cryptography, for All Activity in memory block chain network, public account
It is all a complete copy that this, which is located at any node in memory block, to ensure that it can not forge and distort, and realizes letter
Breath is shared, can improve the efficiency of transaction and information flow.From the perspective of more broadly, block chain technology is by block chain type number
Data are verified and stored according to structure, generates and updates the data using distributed node formula algorithm, utilize ripe password
System come ensure the safety of data transmission and access, using intelligent contract come a kind of completely new distributed computing technology of operation data
Framework and calculation paradigm.
Intelligent contract, the intelligent contract on block chain refer to write and compiled by language such as Solidity, LLL and run with
The storage of the data on block chain, read-write and one may be implemented by intelligent contract in a string of binary codes on block chain
A little logical operations, current most block chain application are all based on intelligent contract to run.What intelligent contract used
Solidity language is that figure spirit is complete, and all operations of applied business logic may be implemented.
Student status is a kind of jural identity or the qualification that a student belongs to certain school, is referred exclusively to as certain school student's
Qualification.At present China tentatively set up it is small in big student status information management system, but current student status information management system is often
It is attacked, safety is insufficient, causes the student status information in the system that may lose or be tampered or even system manager is because each
Kind reason is privately modified student status information and vast society or student have no knowledge about；Therefore the opacification of Student Status Management System
And in Student Status Management System it is insufficient to the safety of student status information change procedure the problems such as be urgently to be resolved hurrily.
Invention content
In view of the above-mentioned problems, the present invention is intended to provide a kind of student status information management system based on privately owned block chain, is used for
It records, the student status information of modification and storage student so that the operations such as student status typing and modification of student have safe and secret
Property, typing or modified student status information are shared by block chain, there is the transparency.
The concrete scheme that the present invention uses is as follows：
A kind of Student Status Management System based on privately owned block chain is provided, including：
Administrator system handles node with multiple student side student status；The Administrator system handles node to student in student status
On monitoring is managed to the typing and modification of student status, the student side student status processing node for student on this node into
The typing and modification of row student status are additionally operable to store the student status information of student；Student side student status processing node with
Between student side student status processing node, connection composition student status is communicated between student side student status processing node and Administrator system
Net.
Preferably, the Administrator system includes administrator's registration/login module, data memory module and student status management
Module；The administrator registers login module and is used to carry out authentication before logging in Administrator system to administrator；The data
Memory module is used for student in the operation processing deposit student status database of student status information, also storing each student's node pair
Answer the public key of student；The student status management module, which is used to handle request to the student status that student sends out, to be confirmed, realizes student couple
The change of student status information.
Preferably, student side student status processing node includes student registration/login unit, student status operating unit, data
Storage element；The student registration/login unit is used for student login student status net, and the student status operating unit is for receiving student
Strip is changed in typing or the request that requests to generate of modification student status, and is encrypted to request data and is sent to student status management mould
Block carries out verifying and confirming generation confirmation modification strip, realizes the typing or modification to student status；The data storage element for pair
The identity information of student and student status typing or modification operation information store.
Preferably, the Administrator system further includes block generation module, is used for the student side student status in the predetermined time
The confirmation modification strip that processing node receives, which is packaged, generates block, and sends it to student side student status processing node.
Preferably, the student side student status processing node further includes block chain growth unit, for adding obtained block
Enter to the end of original block chain and generates new block chain.
Preferably, the student status operating unit includes operate interface, student status data enciphering/deciphering unit, data receiving unit；
The operate interface will be changed or the student status information data and pupilage information of typing for setting student, generate request and repair
Change strip；The student status data enciphering/deciphering unit is used to that the request modification strip that operate interface obtains to be encrypted, and is also used for
The confirmation modification strip that data receiving unit receives is decrypted；The data receiving unit is for sending encrypted request
Strip is changed to Administrator system, is additionally operable to receive the confirmation modification strip that Administrator system is sent out.
Preferably, request modification strip is encrypted, ciphering process is：First, student's operation information is generated
Request modification strip carry out Hash calculation, obtained result according to rule carry out character string compression, the word compressed
Symbol string；Then, by obtained string table be shown as on elliptic curve a little and the point rank be prime number；From data memory module
The middle public key for obtaining administrator B, the public key of the private key of student A and administrator B is held consultation and generates shared key, using shared
The signature of key and signature algorithm calculating character string corresponding points is encrypted to obtain student status according to obtained signature to the strip
Change ciphertext.
Preferably, the signature algorithm generate student status modification ciphertext the specific steps are：
(1) it is O (p, q) according to the point of above-mentioned acquisition, the rank of point is prime number t；The public key of administrator is Yg, generation it is shared close
Key is r；It is randomly derived an Integer n by random algorithm, n belongs to [1, t-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system；Then
Integer n and point O are subjected to calculation processing and obtain the signature factor；
(3) calculate the signature factor pair prime number t complementations, obtained remainder are that the first signature marks b0；If b0Equal to 0, then again
N is selected, carries out recalculating the signature factor；
(4) by the corresponding plaintext of character string by with put corresponding hash function on curve and handle to obtain label v in plain text；According to
The second signature can be calculated according to signature factor θ, shared key r, v and Integer n and mark b1；Specifically have：
(5) if b1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (b0, b1)。
(6) strip is encrypted according to signature and student status modification ciphertext can be obtained.
Beneficial effects of the present invention are：A kind of student status information management system based on privately owned block chain that the present invention designs,
By the autonomous typing of user or modification student status information, then audited by administrator, and each modification or typing are operated
Information and operator are recorded by way of generating electronics strip, are then packaged to it by block chain technology, are generated
Block chain stores, and then block chain is shared all student's nodes, and the correct of the modification typing is supervised jointly by all students
Property, fraud and the possibility of student status operating mistake of student status information can be reduced with this, and by the technology of block chain, greatly
Increase the cost of distorting for distorting student status information, and reduce the maintenance cost of student status system.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the composition frame diagram of the student status information management system of the present invention；
Specific implementation mode
In conjunction with following application scenarios, the invention will be further described.
Referring to figure one, in the present embodiment, it is proposed that a kind of Student Status Management System based on privately owned block chain, including：
Administrator system handles node with multiple student side student status；The Administrator system handles node to student in student status
On monitoring is managed to the typing and modification of student status, the student side student status processing node for student on this node into
The typing and modification of row student status are additionally operable to store the student status information of student；Student side student status processing node with
Between student side student status processing node, connection composition student status is communicated between student side student status processing node and Administrator system
Net.
Preferably, the Administrator system includes administrator's registration/login module, data memory module and student status management
Module；The administrator registers login module and is used to carry out authentication before logging in Administrator system to administrator；The data
Memory module is used for student in the operation processing deposit student status database of student status information, also storing each student's node pair
Answer the public key of student；The student status management module, which is used to handle request to the student status that student sends out, to be confirmed, realizes student couple
The change of student status information.
Preferably, student side student status processing node includes student registration/login unit, student status operating unit, data
Storage element；The student registration/login unit is used for student login student status net, and the student status operating unit is for receiving student
Strip is changed in typing or the request that requests to generate of modification student status, and is encrypted to request data and is sent to student status management mould
Block carries out verifying and confirming generation confirmation modification strip, realizes the typing or modification to student status；The data storage element for pair
The identity information of student and student status typing or modification operation information store.
Preferably, the Administrator system further includes block generation module, is used for the student side student status in the predetermined time
The confirmation modification strip that processing node receives, which is packaged, generates block, and sends it to student side student status processing node.
Preferably, the student side student status processing node further includes block chain growth unit, for adding obtained block
Enter to the end of original block chain and generates new block chain.
Preferably, the student status operating unit includes operate interface, student status data enciphering/deciphering unit, data receiving unit；
The operate interface will be changed or the student status information data and pupilage information of typing for setting student, generate request and repair
Change strip；The student status data enciphering/deciphering unit is used to that the request modification strip that operate interface obtains to be encrypted, and is also used for
The confirmation modification strip that data receiving unit receives is decrypted；The data receiving unit is for sending encrypted request
Strip is changed to Administrator system, is additionally operable to receive the confirmation modification strip that Administrator system is sent out.
In this preferred embodiment, all students are sent to by generating block chain and by block chain share, are allowed all
Student can store the block chain that this includes student status operation information, really ensure that the operation transparent of student status information, and
Linear preservation mechanism based on block chain increases cost and risk that student status is distorted.
In this preferred embodiment, the student, which registers/logs in unit in student status and register or log in, to be known based on face
Not come what is realized, it is implemented as：
(1) when student registration, student side student status processing node receives multiple standard faces images of itself of student's upload,
And multiple dimensional characteristics extractions are carried out to every standard faces image, feature extraction includes：Extract facial contour feature CZ, interpupillary distance
Feature VZ, global shade of gray feature BZAnd bridge of the nose local gray level difference characteristic NZ；
(2) each dimensional characteristics of the standard faces image are carried out sum-average arithmetic by student side student status processing node, are obtained
The standard value of student's face dimensional characteristics, and its human face data is stored in data storage element；
(3) student takes brush face to verify when logging in, i.e., student side student status processing node obtains student's facial image,
And the feature extraction of above-mentioned dimension is carried out to student's facial image, by the feature extracted and each dimensional characteristics of student's face
Standard value, which is compared, calculates the sub- W of face feature difference；
(4) training obtains the decision threshold W of recognition of face0, wherein the training that decision threshold is carried out using grader is obtained,
Specifically training process is：The facial image of Q same students of input gives the corresponding student side student status processing node of student, according to upper
It states step and calculates W values, be denoted as WQ；Then the student's face figure not corresponding with student side student status processing node of input P
Picture also calculates Y value according to above-mentioned steps, is denoted as WP；According to Q, WQ,P,WPAnd known whether belong to student's face characteristic
To train grader to obtain judgment threshold W0。
(5) by the sub- W of face feature difference and decision threshold W0It is compared, if W0-μ<W<W0+ μ, μ are one small stretch
The factor, then it is assumed that the face feature difference overabundance of amniotic fluid foot standard that user's face is calculated, identification success are permitted logging in and be learned
Student status of causing trouble handles node and carries out student status operation.
In this preferred embodiment, place is encrypted to described pair of request modification strip by a kind of signature algorithm of design
Reason, processing procedure are：First, request modification strip student's operation information generated carries out Hash calculation, obtained result
The compression of character string, the character string compressed are carried out according to rule；Then, obtained string table is shown as on elliptic curve
A bit, the rank of the point is prime number, and the private key of student A and administrator B is privately owned underground；Pipe is obtained from data memory module
The public key of the private key of student A and administrator B is held consultation and generates shared key, using shared key and label by the public key of reason person B
The signature of name algorithm calculating character string corresponding points is encrypted to obtain student status modification close according to obtained signature to the strip
Text.
In this preferred embodiment, the signature algorithm generate student status modification ciphertext the specific steps are：
(1) it is O (p, q) according to the point of above-mentioned acquisition, the rank of point is prime number t；The public key of administrator is Yg, generation it is shared close
Key is r；It is randomly derived an Integer n by random algorithm, n belongs to [1, t-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system；Then
Integer n and point O are subjected to calculation processing and obtain the signature factor；
(3) calculate the signature factor pair prime number t complementations, obtained remainder are that the first signature marks b0；If b0Equal to 0, then again
N is selected, carries out recalculating the signature factor；
(4) by the corresponding plaintext of character string by with put corresponding hash function on curve and handle to obtain label v in plain text；According to
The second signature can be calculated according to signature factor θ, shared key r, v and Integer n and mark b1；Specifically have：
(5) if b1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (b0, b1)。
(6) strip is encrypted according to signature and student status modification ciphertext can be obtained.
In the present embodiment, the election contest coefficient is node capacity, the data processing speed that node is handled by student side student status
The confidence level of rate, node operational reliability and node is determining to carry out evaluation, and the calculation formula of the election contest coefficient is：
In formula, H is election contest coefficient, and D is the computing capability of student's node；β is the decline factor of student's node computing capability；
U is the storage space of student's node, and δ is the expansion variable in student's node store space；S is the frequent operation degree of student's node；G
For the operation confidence level of student's node；For the trust-factor of student's nodal operation.
In this preferred embodiment, the calculation formula of coefficient, comprehensive considering various effects, to student side are campaigned for by design
Nationality processing node is evaluated, and is rewarded the successful node of election contest for obtaining digging mineral rights so that and block chain is able to quickly,
Reliable growth.
It in the present embodiment, is modified to the student status information of oneself by student A or typing, is then carried out by administrator B
Confirm, block chain finally is added in the operation information, proposes a kind of student status information management side based on privately owned block chain successively
Method, specially：
(1) registration/login units of the student A on student side student status processing node is registered, and is succeeded in registration and is logged in again
Into student status operating unit, identity information progress typings or verification of the student A in operate interface to oneself later, then to oneself
Student status information modify or typing, generated after the completion of operation a identity information including student A, student status operation information,
Strip is changed in the request that timestamp is initiated in the identity information of administrator B and operation.
(2) and then request modification strip is admitted to student status data enciphering/deciphering unit and is encrypted, and strip is encrypted
The student's ciphertext obtained afterwards is sent into data receiving unit and carries out being sent to administrator B.
(3) administrator B logs in Administrator system again by administrator's registration/login module, can receive later
Student's ciphertext feeding student status management module is decrypted, is wrapped in the student status management module by student's ciphertext that raw A is sent
Data enciphering/deciphering module has been included, and the content that strip is changed the request that decryption obtains passes through archives or background data base carries out core
To audit, if administrator does not have found mistake, the privately owned electronic identity labels of administrator B are added in request modification strip, it is raw
Confirm at portion and changes strip；To confirming that modification strip is encrypted to obtain administrator's ciphertext, and send it to student
A；
(4) student A receives administrator's ciphertext by data receiving unit, and administrator's ciphertext feeding student status data are added/solved
Close unit continues decryption processing, is checked to the confirmation modification strip that decryption processing obtains, checks whether there is the electricity of administrator
Obtained confirmation modification strip is carried out broadcast transmission to Administrator system by sub- identity marks if so, then by audit；
(5) the block generation module in the Administrator system every a predetermined time section just to system in current time
The confirmation modification strip that section generates, which be packaged, generates block, and then the block is sent to all student sides by administrator
Nationality handles node；
(6) campaigned between student side student status processing node, election contest coefficient it is high can receive the block, obtain
The digging mineral rights operated to block is obtained, i.e., block is sent into block chain growth unit, block operate into chain, to obtain
The block chain extended after growth；
(7) after the block chain after being grown, send it to Administrator system storage, and administrator by the block chain into
Row shares to all student side student status processing nodes, is stored.
In another embodiment of the application, the system for still using above-described embodiment constitutes and principle；
In the present embodiment, on the basis of upper one embodiment, the formula calculated face feature difference is devised：
In formula, CZ' it is the face mask feature extracted from student's facial image；VZ' special for the interpupillary distance of corresponding student face
Sign；BZ' it is the global shade of gray feature extracted from student's face image；NZ' for the bridge of the nose office in student's face image
Portion's gray difference feature；ρ is the face mask Curvature modification amount of setting；β is the Illumination for influencing face gray feature；For
The contour feature standard value of correspondence student's face；For the standard value of the interpupillary distance feature of the student；For the student face
Global shade of gray characteristic standard value,For the standard value of the bridge of the nose local gray level difference characteristic of the student face；
In this preferred embodiment, the student and manager are required for that aforesaid way is taken to log in, to people in system
The access process of member carries out, compared with strict supervision, a student status pipe based on privately owned block chain being built up and safeguard to reach with this
Reason system；And verified by brush face and make identity information real name, and the face recognition algorithms calculation amount used is small, discrimination warp
It crosses and tests also high, the safety for improving system of part according to this.
In the present embodiment, the algorithm of the calculate the signature factor of design is：
(1) pass through the sub- point O of point O regenerations1(p1, q1) and O2(p2, q2), setting initial value p1=e × p；q1=1；p2=
p2+f；q2=q2+e；E, f are the small change factor being manually set.
(2)ni∈[nl-1,···n0], i ∈ [0, l-1], i indicates update times, niIndicate ith update
Binary bit value；According to the i sequences successively increased and corresponding niValue to O1And O2Point coordinates constantly updated；
Specifically have：
When carrying out ith iteration, if niWhen=0, to O2Point is updated, if niWhen=1, then to O1Point is updated；
(3) when iteration l times, i.e. i=l-1, iteration is completed, and the O after final updated is obtained1And O2Point coordinates；According to it
The calculate the signature factor：
In formula, θ is the signature factor；(p1′,q1') be final updated after O1Point coordinates；(p2′,q2') for after final updated
O2Point coordinates；
In the present embodiment, described pair of point carries out newer more new formula and is：
In formula, unity gamma or 2, for selecting to O1Point or O2Point is updated；(pγ i, qγ i) indicate to change by ith
Point coordinates value after generation；(p1 i-1, q1 i-1) indicate the O after (i-1)-th iteration1Point coordinates value；(p2 i-1, q2 i-1) indicate to pass through
O after (i-1)-th iteration2Point coordinates value；
In this preferred embodiment, a kind of signature algorithm based on elliptic curve encryption algorithm is devised, in the algorithm, student
And administrator maintains secrecy to the private key of itself, partly ensure that the safety that student status is operated, passes through the signature pair of generation
Include that the strip of operation information is further encrypted, by student setting themselves changed factor e, f, improves the operation of student status information
The security reliability of data.
In this preferred embodiment, a kind of student status information management system based on privately owned block chain is devised, by student resource
Typing or modification student status information, then audited by administrator, and will every time modification or typing operation information and behaviour
Author is recorded by way of generating electronics strip, is then packaged to it by block chain technology, and the storage of block chain is generated,
And then block chain shared into all student's nodes, and the correctness of the modification typing is supervised jointly by all students, it can be with this
The fraud of student status information and the possibility of student status operating mistake are reduced, and by the technology of block chain, greatly increases and usurps
Change the cost of distorting of student status information, and reduces the maintenance cost of student status system.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as analysis, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (8)
1. a kind of Student Status Management System based on privately owned block chain, which is characterized in that including：Administrator system and multiple student sides
Student status handles node；The Administrator system is managed the typing and modification of student status on student status processing node student
Monitoring, student side student status processing node carry out the typing and modification of student status for student on this node, are additionally operable to pair
The student status information of student stores；Between student side student status processing node and student side student status processing node, student side
Student status, which is handled, communicates connection composition student status net between node and Administrator system.
2. a kind of Student Status Management System based on privately owned block chain according to claim 1, the Administrator system include
Administrator's registration/login module, data memory module and student status management module；The administrator register login module for pair
Administrator carries out authentication before logging in Administrator system；The data memory module is for the operation by student to student status information
It handles in information deposit student status database, also stores the public key that each student's node corresponds to student；The student status management module
Student status processing request for being sent out to student confirms, realizes change of the student to student status information.
3. a kind of Student Status Management System based on privately owned block chain according to claim 1, which is characterized in that the student
End student status processing node includes student registration/login unit, student status operating unit, data storage element；The student registration/step on
It records unit and is used for student login student status net, the student status operating unit is used to receive student's typing or changes requesting to generate for student status
Request modification strip, and request data is encrypted to be sent to student status management module and verify and confirm generation and confirm and is repaiied
Change strip, realizes typing or modification to student status；The data storage element is used to record the identity information and student status of student
Enter or change operation information to be stored.
4. a kind of Student Status Management System based on privately owned block chain according to claim 1, which is characterized in that the management
Member's system further includes block generation module, and the confirmation for receiving the student side student status processing node in the predetermined time is changed
Strip, which is packaged, generates block, and sends it to student side student status processing node.
5. a kind of Student Status Management System based on privately owned block chain according to claim 1, which is characterized in that the student
It further includes block chain growth unit to hold student status processing node, and the end for obtained block to be added to original block chain generates
New block chain.
6. a kind of Student Status Management System based on privately owned block chain according to claim 3, which is characterized in that the student status
Operating unit includes operate interface, student status data enciphering/deciphering unit, data receiving unit；The operate interface is learned for setting
Life to change or the student status information data and pupilage information of typing, generates request modification strip；The student status data add/
Decryption unit is used to that the request modification strip that operate interface obtains to be encrypted, and is also used for receiving really data receiving unit
Recognize modification strip to be decrypted；The data receiving unit changes strip to Administrator system for sending encrypted request,
It is additionally operable to receive the confirmation modification strip that Administrator system is sent out.
7. a kind of Student Status Management System based on privately owned block chain according to claim 6, which is characterized in that asked to described
Modification strip is asked to be encrypted, ciphering process is：First, request modification strip student's operation information generated carries out Hash meter
It calculates, obtained result is carried out according to rule the compression of character string, the character string compressed；Then, the character string that will be obtained
The rank for being expressed as any on elliptic curve and the point is prime number；The public key that administrator B is obtained from data memory module, will learn
The private key of raw A and the public key of administrator B hold consultation and generate shared key, using shared key and signature algorithm calculating character string
The signature of corresponding points is encrypted the strip according to obtained signature to obtain student status modification ciphertext.
8. a kind of Student Status Management System based on privately owned block chain according to claim 7, which is characterized in that the signature
Algorithm generate student status modification ciphertext the specific steps are：
(1) it is O (p, q) according to the point of above-mentioned acquisition, the rank of the point is prime number t；The public key of administrator is Yg, the shared key of generation
For r；It is randomly derived an Integer n by random algorithm, n belongs to [1, t-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system；It then will be whole
Number n and point O carries out calculation processing and obtains the signature factor；
(3) calculate the signature factor pair prime number t complementations, obtained remainder are that the first signature marks b0；If b0Equal to 0, then reselect
N carries out recalculating the signature factor；
(4) by the corresponding plaintext of character string by with put corresponding hash function on curve and handle to obtain label v in plain text；According to label
The second signature label b can be calculated in name factor θ, shared key r, v and Integer n1；Specifically have：
(5) if b1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (b0, b1)；
(6) strip is encrypted according to signature and student status modification ciphertext can be obtained.
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