CN112738177B - Block chain-based attestation system, method, apparatus, electronic device, and medium - Google Patents

Block chain-based attestation system, method, apparatus, electronic device, and medium Download PDF

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CN112738177B
CN112738177B CN202011542905.3A CN202011542905A CN112738177B CN 112738177 B CN112738177 B CN 112738177B CN 202011542905 A CN202011542905 A CN 202011542905A CN 112738177 B CN112738177 B CN 112738177B
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academic
information
certification
verification
user
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CN112738177A (en
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杜茂兵
徐昊
张佳妮
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Netease Hangzhou Network Co Ltd
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Netease Hangzhou Network Co Ltd
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    • 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
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • 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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication
    • G06F21/445—Program or device authentication by mutual authentication, e.g. between devices or programs
    • 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
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • 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
    • H04L9/3218—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 proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • 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
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

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Abstract

The application provides a certification system, method, device, electronic equipment and medium based on a block chain, and relates to the technical field of block chains. The system comprises at least one first block chain node, a first module and a second module, wherein the at least one first block chain node in the system receives a first calling request sent by a block chain end of an education institution and generates academic certification information based on a zero-knowledge certification technology; returning a scholarly certification message to the blockchain end of the educational institution; at least one second blockchain node, which receives a second call request sent by a blockchain end of the verification mechanism; verifying whether the academic record certification result meets the preset academic record requirement or not based on a zero-knowledge certification technology to generate an academic record verification result; the academic record verification result is returned to the block chain end of the verification mechanism, the academic record verification information can be generated based on the zero-knowledge verification technology, and further the academic record information verification and the academic record verification result verification can be completed without providing excessive information for the user in the verification and verification processes, so that the exposure of excessive personal information of the user can be avoided.

Description

Block chain-based attestation system, method, apparatus, electronic device, and medium
Technical Field
The present application relates to the field of blockchain technologies, and in particular, to a system, a method, an apparatus, an electronic device, and a medium for certification based on a blockchain.
Background
The study history refers to the learning experience of people receiving scientific and cultural knowledge training in education institutions. A person learns in the education institution at what level and receives the training at what level, so that the person has a corresponding level of study.
In the existing technical scheme, the application scenarios of the academic record are wide, for example, job hunting, professional promotion and the like, when the scenes of the academic record need to be used, a user usually writes a certain school/a certain professional/what kind of academic record/study year is obtained in a document, and the information exposes the academic record information track of a person.
However, in the existing scheme, as long as the user submits one piece of information, other information of the user can be searched on the network, and therefore, the problem that personal information is exposed too much exists.
Disclosure of Invention
An object of the present application is to provide a system, a method, an apparatus, an electronic device and a medium for certification based on a block chain, which can avoid exposing excessive academic privacy information of a user.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, the present invention provides a block chain based attestation system, including: at least one first blockchain node and at least one second blockchain node;
the first block link node receives a first call request sent by a block link end of an education institution, wherein the first call request comprises the academic information of a user; generating academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the academic record certification information comprises zero knowledge certification parameters; returning the educational demonstration information to a block link end of the educational institution;
the second blockchain node receives a second call request sent by a blockchain end of the authentication mechanism, wherein the second call request comprises: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the academic record certification information; verifying whether the academic record certification result meets the preset academic record requirement or not based on a zero-knowledge certification technology to generate an academic record verification result; returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful or not.
In a second aspect, the present invention provides a block chain based attestation method, the method comprising:
receiving a academic record certification request sent by a user terminal, wherein the academic record certification request comprises user information;
determining the academic information of the user according to the academic certification request;
sending a first call request to a first block chain node, so that the first block chain node generates academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the first call request comprises the academic record information of the user, and the academic record certification information comprises a zero knowledge certification parameter;
receiving the academic certification information returned by the first block link point;
sending a academic certification result to the user terminal, wherein the academic certification result comprises: the academic aptitude information.
In an alternative embodiment, the user's academic information includes one or more of the following: the method comprises the following steps of generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of a user, wherein the academic record proving information comprises the following steps:
generating a hash value corresponding to the academic information of the user according to the academic information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an optional embodiment, the sending the academic aptitude to the user terminal includes:
generating a academic record certification identification code according to the academic record certification result;
and sending the academic certificate identification code to the user terminal.
In an optional embodiment, the sending the first invocation request to the first blockchain node includes:
and sending the first call request to the first block link point through a certification service interface of the first block link node, so that the first block link point generates a certification generation task according to the academic information of the user, and executing the certification generation task based on a zero-knowledge certification technology to generate the academic certification information.
In an optional embodiment, before sending the first invocation request to the first blockchain node, the method further includes:
sending a registration request to the first block link, the registration request comprising: educational institution information such that the first block link point registers the information of the educational institution based on a preset intelligent contract.
In a third aspect, the present invention provides a block chain based attestation method for verifying a block chain end of a mechanism, the method comprising:
receiving a scholarly-record certification verification request sent by a user terminal, wherein the scholarly-record certification verification request comprises: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
sending a second call request to a second blockchain node, so that the second blockchain node verifies whether the academic record verification result meets a preset academic record requirement based on a zero-knowledge proof technology to generate an academic record verification result, wherein the second call request comprises: the result of the proof of the academic calendar;
receiving a academic verification result returned by the second block link point, wherein the academic verification result is used for indicating whether verification is successful or not;
and sending the academic verification result to the user terminal.
In an alternative embodiment, if the academic aptitude information includes: the method comprises the following steps of verifying whether a academic certification result meets a preset academic requirement or not based on zero-knowledge certification technology to generate an academic verification result, wherein the method comprises the following steps:
respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: user information to be verified, wherein whether the user information and the education institution information are valid or not is verified respectively;
verifying whether the user information is valid or not according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
In an optional embodiment, the verifying whether the academic information meets the preset academic requirement based on the zero-knowledge proof technology includes:
generating a verification task according to the zero knowledge verification parameters;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
In a fourth aspect, the present invention provides a block chain-based attestation method applied to a first block chain node corresponding to an educational institution on a block chain, the method including:
receiving a first call request sent by a block link end of an educational institution, the first call request including academic information of a user;
generating academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the academic record certification information comprises zero knowledge certification parameters;
returning the educational demonstration information to the block link ends of the educational institution.
In an alternative embodiment, the user's academic information includes one or more of the following: the method comprises the following steps of generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of a user, wherein the academic record proving information comprises the following steps:
generating a hash value corresponding to the academic information of the user according to the academic information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an optional embodiment, the generating, according to the academic aptitude information of the user, a hash value corresponding to the academic aptitude information of the user includes:
generating a certification generation task according to the academic information of the user;
and acquiring a hash value corresponding to the academic information of the user according to the certification generation task.
In an alternative embodiment, if the user's academic information includes education institution information, the education institution information includes: the private key parameter of the education institution, the generation of the proof generation task according to the academic information of the user, comprises:
verifying whether the education institution information is valid according to private key parameters of the education institution and a preset intelligent contract on the first block chain node, wherein the preset intelligent contract comprises information of registered education institutions, and the information of the registered education institutions comprises: public key parameters of the educational institution;
and if the verification is valid, generating the certification generating task.
In an alternative embodiment, the method further comprises:
receiving a registration request sent by a blockchain end of the educational institution, the registration request comprising: information of the educational institution;
registering information of the education institution based on a preset intelligent contract.
In a fifth aspect, the present invention provides a block chain-based attestation method applied to a second block chain node on a block chain, where the method includes:
receiving a second call request sent by a block link end of a validation mechanism, the second call request comprising: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the educational institution identification information is identification information generated by a first block chain link point corresponding to the educational institution according to academic information of a user based on a zero-knowledge identification technology, and the academic identification information comprises a zero-knowledge identification parameter;
verifying whether the academic record verification result meets the preset academic record requirement or not based on a zero-knowledge verification technology to generate an academic record verification result;
returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful or not.
In an alternative embodiment, if the academic aptitude information includes: the method comprises the following steps of verifying whether a academic demonstration result meets a preset academic requirement or not based on a zero-knowledge demonstration technology to generate an academic verification result, wherein the method comprises the following steps:
respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: the user information to be verified, the verifying whether the user information and the education institution information are valid respectively, includes:
verifying whether the user information is valid or not according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
In an optional embodiment, the verifying whether the academic information meets the preset academic requirement based on the zero-knowledge proof technology includes:
generating a verification task according to the zero knowledge verification parameters;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
In a sixth aspect, the present invention provides a blockchain-based attestation apparatus, comprising:
the first receiving module is used for receiving a scholarly calendar proving request sent by a user terminal, wherein the scholarly calendar proving request comprises user information;
the determining module is used for determining the academic information of the user according to the academic certificate request;
a first sending module, configured to send a first call request to a first block link node, so that the first block link node generates academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, where the first call request includes the academic record information of the user, and the academic record certification information includes a zero knowledge certification parameter;
the second receiving module is used for receiving the academic certificate information returned by the first block link point;
a second sending module, configured to send a academic demonstration result to the user terminal, where the academic demonstration result includes: the academic aptitude information.
In an alternative embodiment, the user's academic information includes one or more of the following: the first sending module is specifically used for generating a hash value corresponding to the academic record information of the user according to the academic record information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an optional embodiment, the second sending module is specifically configured to generate a academic certificate identification code according to the academic certificate result; and sending the academic certificate identification code to the user terminal.
In an optional implementation manner, the first sending module is specifically configured to send the first call request to the first block link point through a certification service interface of the first block link node, so that the first block link point generates a certification generating task according to the academic record information of the user, and executes the certification generating task based on a zero-knowledge certification technology to generate the academic record information.
In an optional embodiment, the first sending module is further configured to send a registration request to the first block link point, where the registration request includes: educational institution information such that the first block link point registers the information of the educational institution based on a preset intelligent contract.
In a seventh aspect, the present invention provides a block chain based attestation device for verifying a block chain end of a mechanism, the attestation device comprising:
a first receiving module, configured to receive a academic certificate verification request sent by a user terminal, where the academic certificate verification request includes: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
a first sending module, configured to send a second call request to a second block chain node, so that the second block chain node verifies, based on a zero-knowledge proof technique, whether the academic proof result meets a preset academic requirement to generate an academic verification result, where the second call request includes: the results of the academic records are proved;
the second receiving module is used for receiving a academic verification result returned by the second block link point, wherein the academic verification result is used for indicating whether verification is successful;
and the second sending module is used for sending the academic verification result to the user terminal.
In an alternative embodiment, if the academic certification information includes: the first sending module is specifically used for respectively verifying whether the user information and the education institution information are valid, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: the first sending module is specifically used for verifying whether the user information is valid according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
In an optional implementation manner, the first sending module is specifically configured to generate a verification task according to a zero-knowledge verification parameter;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
In an eighth aspect, the present invention provides a blockchain-based certification apparatus applied to a first blockchain node corresponding to an educational institution on a blockchain, the certification apparatus including:
the first receiving module is used for receiving a first calling request sent by a block link end of an education institution, and the first calling request comprises the academic information of a user;
the generating module is used for generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of the user, wherein the academic record proving information comprises zero-knowledge proving parameters;
a first return module for returning the educational institution's proof of academic information to a block link end.
In an alternative embodiment, the user's academic information includes one or more of the following: the generating module is specifically used for generating a hash value corresponding to the academic information of the user according to the academic information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an optional embodiment, the generating module is specifically configured to generate a certification generating task according to the academic information of the user; and acquiring a hash value corresponding to the academic information of the user according to the certification generation task.
In an alternative embodiment, if the user's academic information includes education institution information, the education institution information includes: the private key parameter of education institution, the generation module is specifically used for verifying whether the education institution information is valid according to the private key parameter of education institution and the preset intelligent contract on the first block chain node, the preset intelligent contract includes the information of the registered education institution, the information of the registered education institution includes: public key parameters of the educational institution;
and if the verification is valid, generating the certification generating task.
In an alternative embodiment, the attestation device further comprises: a registration module to receive a registration request sent by a blockchain end of the educational institution, the registration request comprising: information of the educational institution;
registering information of the education institution based on a preset intelligent contract.
In a ninth aspect, the present invention provides a block chain based attestation apparatus applied to a second block chain node on a block chain, the attestation apparatus comprising:
a second receiving module, configured to receive a second call request sent by a block link end of the authentication mechanism, where the second call request includes: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
the verification module is used for verifying whether the academic record certification result meets the preset academic record requirement or not based on zero-knowledge certification technology and generating an academic record verification result;
a second returning module for returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful.
In an alternative embodiment, if the academic certification information includes: the verification module is specifically used for respectively verifying whether the user information and the education institution information are valid, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: the verification module is specifically used for verifying whether the user information is valid or not according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
In an optional embodiment, the verification module is specifically configured to generate a verification task according to a zero-knowledge verification parameter;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
In a tenth aspect, the present invention provides an electronic device comprising: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, when the electronic device runs, the processor communicates with the storage medium through the bus, and the processor executes the machine-readable instructions to execute the steps of the block chain based attestation method according to any of the previous embodiments.
In an eleventh aspect, the present invention provides a computer-readable storage medium, having a computer program stored thereon, where the computer program is executed by a processor to perform the steps of the block chain based attestation method as described in any of the previous embodiments.
The beneficial effect of this application is:
an attestation system based on a block chain provided by an embodiment of the application includes: at least one first blockchain node and at least one second blockchain node; the first block chain node receives a first calling request sent by a block chain end of an education institution, wherein the first calling request comprises the academic information of the user; generating academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the academic record certification information comprises zero knowledge certification parameters; returning a scholarly certification message to the blockchain end of the educational institution; and the second blockchain node receives a second calling request sent by the blockchain end of the verification mechanism, wherein the second calling request comprises: the academic certification result comprises the following steps: academic record certification information; verifying whether the academic record certification result meets the preset academic record requirement or not based on a zero-knowledge certification technology to generate an academic record verification result; by applying the embodiment of the application, since the academic record certification information can be generated by the first block link point based on the zero knowledge certification technology, the certification of the academic record information and the verification of the academic record certification result can be completed without providing excessive information by a user in the certification and verification processes, so that the exposure of excessive personal information of the user can be avoided, and the user experience can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is an architecture diagram of a block chain based attestation system provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a block chain-based attestation method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 4 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 5 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 6 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 7 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 8 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 9 is a schematic flowchart of another block chain-based attestation method provided in an embodiment of the present application;
fig. 10 is a functional block diagram of an attestation apparatus based on a block chain according to an embodiment of the present application;
fig. 11 is a schematic functional block diagram of another block chain based attestation apparatus provided in an embodiment of the present application;
fig. 12 is a schematic functional block diagram of another block chain-based attestation apparatus provided in an embodiment of the present application;
fig. 13 is a schematic functional block diagram of another block chain based attestation apparatus provided in an embodiment of the present application;
fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Before introducing this application, relevant terms in this application will first be explained for a better understanding of this application.
Block chains: namely, a brand new distributed infrastructure and computing paradigm of verifying and storing data using a blockchain data structure, generating and updating data using a distributed node consensus algorithm, securing data transmission and access using cryptography, and programming and manipulating data using intelligent contracts composed of automated script code.
Zero knowledge proves that: i.e. the prover can convince the verifier that a certain argument is correct without providing the verifier with any useful information. Zero knowledge proof is essentially an agreement involving two or more parties, i.e., a series of steps that are required by two or more parties to complete a task. The prover proves to the verifier and convinces him that he knows or owns a certain message, but the proving process cannot reveal any information about the proven message to the verifier.
Generally, when a user provides academic information to an enterprise, the user usually needs to write school, professional, academic calendar, study year and the like, the information undoubtedly exposes the academic information track of the user, and when inquiring, if one or more pieces of information are submitted, other information of the user can be searched, so that the problem that personal information is exposed too much exists in the existing mode for the user; for enterprises, the communication cost is high because the school is required to verify the academic information.
In view of the above, embodiments of the present disclosure provide a block chain-based certification method, which can operate at a block chain end of an educational institution, a block chain end of a verification institution, a first block chain node, or a second block chain node, and can avoid exposing excessive academic privacy information of a user. Of course, the application is not limited to the application scenario of the academic calendar, and may be a job-seeking scenario, or may be other transaction scenarios, so as to avoid exposing excessive personal information of the user, such as income situation, marital status, and the like, but not limited thereto.
Fig. 1 is an architecture diagram of a block chain based attestation system provided in an embodiment of the present application, and as shown in fig. 1, the attestation system may include: at least one first block link node 13 and at least one second block link node 14, wherein the first block link node 13 can be communicatively connected to a block link end 21 of an educational institution via a network 15, and the second block link node 14 can be communicatively connected to a block link end 22 of a verification institution via the network 15, and the interaction process can be seen in the related description below.
When a user needs to apply for a scholarly proof, a scholarly proof request can be sent to a blockchain end of an education institution through a user terminal, the scholarly proof request can comprise user information, and after the blockchain end of the education institution receives the scholarly proof request, a first call request can be sent to a first blockchain node, the first call request can comprise the scholarly information of the user, and the first blockchain node can receive the first call request sent by the blockchain end of the education institution; generating academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the academic record certification information can comprise zero knowledge certification parameters; returning the educational institution's proof of academic to the tile link end, it will be appreciated that the educational institution's tile link end will receive the proof of academic, and the educational institution's tile link end will return the proof of academic to the user terminal through which the user can obtain the proof of academic.
The zero-knowledge proof parameter can be used for indicating that the academic-record proof information is generated through a zero-knowledge proof technology, so that when the academic-record proof information is generated based on the zero-knowledge proof technology, excessive academic-record privacy information of a user can be effectively prevented from being exposed in the proof process, and the user experience is improved.
When the user presents the academic certification information to the verification mechanism through the user terminal, the blockchain end of the verification mechanism may generate a second invocation request, and send the second invocation request to the second blockchain node, where the second invocation request may include: the academic certification result may include: the academic certification information is that for the second blockchain node, the second blockchain node can receive a second call request sent by the blockchain end of the verification mechanism; verifying whether the academic record verification result meets the preset academic record requirement or not based on a zero-knowledge verification technology to generate an academic record verification result; the academic verification result is returned to the blockchain end of the verification mechanism, and the academic verification result is used for indicating whether verification is successful or not. It is understood that the sector end of the authentication mechanism, after receiving the authentication result, can return the authentication result to the user terminal, so that the user can know the authentication result through the user terminal.
In order to better understand the application, the application is described by taking a job application scenario as an example, the education institution may be understood as a school, the user may be understood as a student, the user terminal may be understood as a terminal device such as a mobile phone, a computer, a tablet computer, and the like, and the verification institution may be understood as an enterprise, that is, the student may send a study certification request to the school through the user terminal such as a mobile phone, a computer, a tablet computer, and the like, after receiving the study certification request, the school may generate a first call request through a block link end of the school, the block link end of the school may send the first call request to a first block link node, and the first block link node may return study certification information to the block link end of the school by referring to the above method, and further, the block link end of the school may feed the study certification information back to the user terminal; for a user, the user may show the academic record certification information to an enterprise through the user terminal in the job hunting process, it can be understood that the enterprise needs to verify the academic record certification information to ensure the validity of the academic record certification information, the enterprise may generate a second call request through the block link end of the enterprise, and send the second call request to the second block link node through the block link end of the enterprise, and the second block link node may return the academic record verification result to the block link end of the enterprise by referring to the method described above, further, the block link end of the enterprise may feed back the academic record verification result to the user terminal, and the user may know a specific verification result, and the specific verification process may refer to the related description above, which is not described herein again. It can be understood that, in the process of the certification and the verification, since the certification and the verification of the academic calendar information can be completed without providing too much academic calendar privacy information by the user, the exposure of too much academic calendar privacy information by the user can be avoided, and the user experience is improved.
It should be noted that the first blockchain node 13 and the second blockchain node 14 may be located on the same blockchain, or may be located on different blockchains, which is not limited herein. Of course, the number of the first blockchain node 13 and the second blockchain node 14 is not limited in this application, and may be flexibly adjusted according to an application scenario. The first and second blockchain nodes 13 and 14 may be computers, mobile terminals, servers, etc., and the blockchain end 21 of the education institution and the blockchain end 22 of the verification institution may be installed on the computers, mobile terminals, palmtop computers, etc., which is not limited herein.
In summary, by applying the embodiment of the application, since the academic record certification information can be generated through the first block link point based on the zero-knowledge certification technology, the certification of the academic record information and the verification of the academic record certification result can be completed without providing too much academic record privacy information by the user in the certification and verification processes, so that the too much academic record privacy information of the user can be prevented from being exposed, and the user experience is improved.
Fig. 2 is a schematic flowchart of a block chain-based certification method according to an embodiment of the present application, which may be applied to an educational system including a block chain end of an educational institution, where the educational institution may be an educational administration, a school, a training institution, etc., and the block chain end of the educational institution may be installed in a computer, a mobile terminal, a palmtop computer, etc., without limitation. As shown in fig. 2, the method may include:
s101, receiving a study history proving request sent by a user terminal, wherein the study history proving request comprises user information.
When the user needs to apply for the academic record, the user terminal can send a request for the academic record certification to the block link end of the education institution, wherein the request for the academic record certification can comprise user information; optionally, the user information may include, but is not limited to: the name, sex, identification number, school number, etc. are not limited herein, and may include different user information according to the actual application scenario.
In some embodiments, in order to enable the academic demonstration result to meet the preset academic demonstration requirement, the user may determine a target academic demonstration template from a plurality of preset academic demonstration templates on the user terminal, and send the target academic demonstration template and the user information to the education system in a academic demonstration request, wherein the preset academic demonstration template may include the academic information to be proved, and the academic information to be proved may include but is not limited to: the method includes the steps of obtaining a target academic demonstration template, and obtaining a target academic demonstration template, wherein the target academic demonstration template comprises a school name, a school level (such as levels 211 and 985), a highest education level (such as a special subject, a master and the like), a professional and a study year waiting demonstration item.
And S102, determining the academic information of the user according to the academic certification request.
It is to be understood that, when the academic record request includes the user information, after receiving the academic record request, the academic record information of the user may be further determined based on the user information; in some embodiments, if the academic demonstration request includes a target academic demonstration template, the corresponding academic information of the user may be determined based on the item to be demonstrated in the target academic demonstration template, and the academic information may include, but is not limited to: school name, school level (e.g., levels 211, 985, etc.), highest education level (e.g., specialties, subjects, masters, etc.), profession, year of study, etc., and the application is not limited thereto.
In some embodiments, the education system may further include an education institution client, the education institution client and the website of the education institution may be communicatively connected via a network, the education institution client may receive a request for education institution identification from the user terminal, and determine the education institution information of the user according to the request for education institution identification, for example, the education institution client may search the database for education institution information of the user according to the request for education institution identification, although the actual determination method is not limited thereto.
S103, sending a first call request to the first block chain node, so that the first block chain node generates academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the first call request comprises the academic record information of the user, and the academic record certification information comprises a zero knowledge certification parameter.
After the academic information of the user is determined, the academic information of the user can be carried in a first calling request, the first calling request is sent to a first block chain node, the first block chain node can generate the academic certification information based on a zero knowledge certification technology according to the academic information of the user after receiving the first calling request, the generated academic certification information can comprise a zero knowledge certification parameter, and the zero knowledge certification parameter can be used for indicating that the academic certification information is generated through the zero knowledge certification technology, so that when the academic certification information is generated, excessive academic privacy information of the user can be effectively prevented from being exposed in a certification process, and user experience is improved.
Optionally, according to different application scenarios, the academic certification information may include different contents, for example, the contents may include: user identification number, name, this family, or, may include: birth date, academic degree level, study year, specialty, name of education institution, school category of education institution (e.g., reason worker), etc., without limitation.
And S104, receiving the academic demonstration information returned by the link point of the first block.
S105, sending a academic demonstration result to the user terminal, wherein the academic demonstration result comprises: and (4) academic certificate information.
For the first blockchain node, after generating the academic record certification information, the first blockchain node may send the academic record certification information to a blockchain end of the education institution, and the blockchain end of the education institution may receive the academic record certification information and send the academic record certification result to the user terminal, where the academic record certification result may carry the academic record certification information. It can be understood that, at this time, the user may receive the academic record certification result through the user terminal for certifying his own academic record. For example, the academic record certification result may be presented to a certain enterprise to certify the own academic record, but not limited thereto.
In addition, it should be noted that, according to an actual application scenario, different educational institutions may correspond to different blockchain nodes on a blockchain, and are not limited herein.
In summary, by applying the embodiment of the application, since the proof of the academic record information can be completed without providing too much academic record privacy information by the user when generating the academic record proof result, the user experience can be improved.
Optionally, the academic information of the user may include one or more of the following information: user information, academic education information, educational institution information, wherein the user information can be referred to the related description, and the academic education information can include but is not limited to: academic levels, areas of expertise, professional academic categories, training, progress information, etc., and educational institution information may include, but is not limited to: the name of the educational institution, educational structure, official network, nature of the work (e.g., public university), school category (e.g., manager), school address, etc., and the application is not limited thereto.
Fig. 3 is a schematic flowchart of another block chain-based attestation method according to an embodiment of the present application. In some embodiments, as shown in fig. 3, the generating of the academic certificate information based on the zero knowledge certification technology according to the academic information of the user may include:
s201, according to the academic record information of the user, a hash value corresponding to the academic record information of the user is generated.
S202, generating academic record certification information based on a zero-knowledge certification technology according to the hash value corresponding to the academic record information of the user.
When the academic record information is generated, in order to avoid that the academic record information of the user is directly displayed in a plaintext, a hash value corresponding to the academic record information of the user can be generated on the first block link node, and according to the hash value, the academic record information is generated based on a zero-knowledge proof technology, and the academic record information can include a zero-knowledge proof parameter, for example, a zero-knowledge proof parameter prov key generated in an execution process, so that the academic record information can be indicated to be generated by the zero-knowledge proof technology.
In some embodiments, the sending of the academic certification result to the user terminal may include:
generating a academic record certification identification code according to the academic record certification result; and sending the academic certificate identification code to the user terminal.
In some embodiments, based on the acquired academic record certification result, an academic record certification identification code may be further generated and sent to the user terminal, so that when the user certifies his own academic record through the academic record certification identification code, the academic record certification result is not displayed in a plaintext manner, and therefore, exposure of the academic record information may be avoided, and the academic record privacy information of the user is protected. In addition, even if the academic certificate identification code is lost, the academic privacy of the user cannot be revealed, and the method has the characteristics of simplicity, easiness in use and low cost. Alternatively, the academic certificate identification code may be a two-dimensional code, a bar code, or the like, which is not limited herein.
In some embodiments, the sending the first invocation request to the first blockchain node may include:
and sending a first call request to the first block chain node through a certification service interface of the first block chain node, so that the first block chain node generates a certification generating task according to the academic record information of the user, and executing the certification generating task based on a zero-knowledge certification technology to generate the academic record information.
In order to enable the first block link point not to broadcast the received first call request to other block link nodes and ensure privacy of data, the certification service interface may be a service interface independently generated by the first block link point, when the first call request is sent to the first block link node, the first call request may be sent to the first block link node through the certification service interface, after the first block link node receives the first call request, a certification generation task may be generated according to academic information of a user, and the certification generation task is executed based on a zero-knowledge certification technology to generate academic certification information. Alternatively, the certification generating task may correspond to a certification function, for example, a correlation function in a libscark library, which is not limited herein.
In some embodiments, to improve the generation efficiency of the academic proof information, the proof generation task may be executed by an asynchronous thread based on a zero-knowledge proof technique to generate the academic proof information, but not limited thereto.
Fig. 4 is a flowchart of another block chain-based attestation method provided in the embodiment of the present application. In some embodiments, as shown in fig. 4, before sending the first invocation request to the first blockchain node, the method further includes:
s301, sending a registration request to the first block link point, wherein the registration request comprises: educational institution information such that the first block link point registers the information of the educational institution based on a preset intelligent contract.
The information of the education institution can be referred to the related description, and besides, the information of the registration of the education institution can be included, for example, the public key parameter of the education institution, the validity period of the registration, etc., which are not limited herein. It is understood that, for an education institution, the education institution may previously transmit a registration request to the first block link point, and the first block link point, upon receiving the registration request, may register information of the education institution based on a preset intelligent contract, so that the first block link point may be previously registered with legal education institution information, and may generate education institution certification information based on the legal education institution information through a zero-knowledge certification technique.
Of course, the educational institution information may be changed or removed based on a preset intelligent contract according to an actual application scenario, which is not limited herein.
Fig. 5 is a schematic flow chart of another block chain-based authentication method according to an embodiment of the present application, which can be applied to a block chain end of a verification mechanism, where the block chain end can be installed in a computer, a mobile terminal, a palm computer, or the like, and is not limited herein. As shown in fig. 5, the method may include:
s401, receiving a academic record verification request sent by a user terminal, wherein the academic record verification request comprises: the academic calendar proves the results.
The academic demonstration results comprise: and the academic record certification information is certification information generated by the first block link points corresponding to the educational institutions based on a zero-knowledge certification technology according to the academic record information of the users, and comprises zero-knowledge certification parameters.
Based on the foregoing description, after obtaining the academic record certification result, the user may display the academic record certification result to the verification mechanism through the user terminal to certify the own academic record, and optionally, the user may generate a academic record certification verification request based on the obtained academic record certification result, and send the academic record certification verification request to the block link end of the verification mechanism.
The academic certification verification request may include the academic certification result, and the academic certification result may include academic certification information, which may include but is not limited to: the user name, the identification number, the school name, the school level (for example, levels 211, 985, etc.), the highest education level (for example, specialties, the present subject, the master, etc.), the specialty, the year of study, the graduation number, the degree number, the zero knowledge proof parameter, etc., and for the generation process of the academic proof information, reference may be made to the relevant parts, which are not described herein again.
S402, sending a second call request to a second block chain node, so that the second block chain node verifies whether the academic demonstration result meets a preset academic requirement based on a zero knowledge proof technique to generate an academic verification result, where the second call request includes: the academic calendar proves the results.
After receiving the academic record verification request, the block link end of the verification mechanism may send a second call request to the second block link node, so that the second block link node may verify whether the academic record verification result meets the preset academic record requirement based on the zero-knowledge verification technique, thereby generating the academic record verification result, which may be used to indicate whether the verification is successful.
And S403, receiving a academic verification result returned by the second block link point, wherein the academic verification result is used for indicating whether verification is successful.
S404, the academic verification result is sent to the user terminal.
For the second blockchain node, after generating the academic verification result, the second blockchain node may send the academic verification result to the blockchain end of the verification mechanism, and further, the blockchain end of the verification mechanism may send the academic verification result to the user terminal after receiving the academic verification result, so that the user can know whether the academic verification is successful according to the academic verification result.
The second blockchain node is a preset verification node disclosed on the blockchain, that is, multiple verification mechanisms can verify through the same preset verification node, and the present application is not limited herein. In some embodiments, the first block chain node and the second block chain node may be located in the same block chain, and are not limited herein.
In conclusion, by applying the embodiment of the application, the academic calendar verification can be completed without communication between the verification mechanism and the education mechanism in the verification process, so that the verification cost of the verification mechanism can be effectively reduced.
Fig. 6 is a flowchart of another block chain-based attestation method provided in the embodiment of the present application. Optionally, if the academic certification information includes: for the user information, the educational information of the academic calendar and the educational institution information, the related descriptions can be found, and the detailed description of the present application is omitted. As shown in fig. 6, the verifying whether the academic demonstration result meets the predetermined academic requirement based on the zero-knowledge proof technology to generate the academic verification result includes:
s501, respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and obtaining a verification result.
And S502, generating a study verification result according to the verification result.
In the verification process, for the second block chain node, the second block chain node can respectively verify whether the user information and the education institution information in the academic proof result are valid; based on the zero-knowledge proof technology, whether the academic information in the academic proof result meets the preset academic requirement or not is verified, a verification result is obtained, a corresponding academic verification result is generated according to the verification result, and the academic verification result can be used for indicating whether verification is successful or not.
Fig. 7 is a flowchart illustrating another block chain based attestation method according to an embodiment of the present application. Optionally, as shown in fig. 7, the request for proof of academic certification further includes: the user information to be verified respectively verifies whether the user information and the education institution information are valid;
s601, verifying whether the user information is valid according to the user information to be verified.
It is to be understood that, for the user, when the user sends the academic certificate verification request to the second block chain node through the user terminal, the academic certificate verification request may further include: and the user information to be verified can verify whether the user information in the academic certificate information is valid or not according to the user information to be verified submitted by the user during verification. Alternatively, if the two pieces of information are consistent, the user information in the academic aptitude information may be considered to be valid, otherwise, the user information may be considered to be invalid.
And S602, verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises the registered education institution information.
The verification of whether the education institution information in the education institution demonstration information is valid may be performed according to a preset intelligent contract on the second block link node, and it may be understood that, since the preset intelligent contract includes the registered education institution information, whether the education institution information in the education institution demonstration information is valid may be verified according to the registered education institution information on the preset intelligent contract, optionally, if the two information are consistent, the education institution information in the education institution demonstration information may be considered to be valid, otherwise, the education institution information may be considered to be invalid.
Of course, it should be noted that the present application is not limited to the actual verification method, and may be adaptively adjusted according to the actual application scenario.
Optionally, the verifying whether the academic information meets the preset academic requirement based on the zero-knowledge proof technology may include:
generating a verification task according to the zero knowledge verification parameters; and executing a verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
For the second blockchain node, the second blockchain link node may hold a zero-knowledge verification parameter, such as a verify key, which may be optionally generated by a correlation function in the libscan library, and is not limited herein; in addition, the second block link point may also hold a preset academic requirement of the verification mechanism, and optionally, the preset academic requirement may include but is not limited to: school level requirements, highest education level requirements, professional requirements and the like, and the application is not limited herein.
Optionally, when performing the verification specifically, the second block link point may generate a verification task according to the zero knowledge verification parameter, and execute the verification task based on a zero knowledge certification technology to verify whether the academic information meets the preset academic requirement. Optionally, if the academic information in the academic certification information is higher than the preset academic requirement, the academic information may be considered to meet the preset academic requirement, otherwise, the academic information does not meet the preset academic requirement, and of course, the application does not limit the specific determination manner herein.
Fig. 8 is a schematic flowchart of another block chain-based certification method provided in this embodiment of the present application, where the certification method may be applied to a first block chain node corresponding to an educational institution on a block chain, and the basic principle and the resulting technical effect of the certification method are the same as those of the corresponding method embodiment described above, and for a brief description, reference may be made to corresponding contents in the foregoing method embodiment for a part not mentioned in this embodiment. As shown in fig. 8, the method may include:
s701, receiving a first calling request sent by a block link end of an education institution, wherein the first calling request comprises the academic information of the user.
S702, generating academic record information based on a zero knowledge record technology according to the academic record information of the user, wherein the academic record information comprises zero knowledge record parameters.
And S703, returning the academic certification information to the block link end of the education institution.
Optionally, the user's academic information includes one or more of the following information: the user information, the academic record education information and the education institution information, wherein the academic record certification information is generated based on the zero-knowledge certification technology according to the academic record information of the user, and the method comprises the following steps:
generating a hash value corresponding to the academic information of the user according to the academic information of the user; and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
For the content of this part, reference may be made to the related description above, and the description of this application is not repeated herein.
In some embodiments, the generating a hash value corresponding to the academic record information of the user according to the academic record information of the user may include:
generating a certification generation task according to the academic information of the user; and generating a task according to the proof, and acquiring a hash value corresponding to the academic information of the user.
For the first block chain node, after the first block chain link point acquires the academic record information of the user through the first invocation request, the certification generation task can be generated, and the hash value corresponding to the academic record information of the user can be acquired according to the certification generation task, so that the academic record information of the user can be prevented from being directly displayed in the first block chain node in a plaintext, and the safety of the academic record information of the user is ensured.
Alternatively, if the user's academic information includes education institution information, the education institution information includes: the generating of the proof generating task according to the academic information of the user may include:
verifying whether the information of the education institution is valid according to the private key parameter of the education institution and a preset intelligent contract on the first block chain node, wherein the preset intelligent contract comprises the information of the registered education institution, and the information of the registered education institution comprises: public key parameters of the educational institution; and if the verification is valid, generating a certification generation task.
For the first block chain node, the intelligent contract preset on the first block chain node includes information of the registered educational institution, the information of the registered educational institution includes public key parameters of the educational institution, if the academic information of the user includes private key parameters of the educational institution, the first block chain link point can decrypt the registered educational institution on the preset intelligent contract according to the private key parameters of the educational institution, if the decryption is successful, the educational institution information in the academic information of the user can be considered as valid information, a proof generation task can be generated, otherwise, the proof generation task can not be generated, and a result that acquisition of the academic proof information fails is returned.
Optionally, the method further includes: receiving a registration request sent by a blockchain end of an educational institution, the registration request comprising: information of an educational institution; information of the education institution is registered based on a preset intelligent contract.
For the content of this part, reference is made to the related description above, and the description of this application is not repeated here.
Fig. 9 is a flowchart of another block chain based certification method according to an embodiment of the present application, which can be applied to a second block chain node on a block chain, and the basic principle and the resulting technical effect of the certification method are the same as those of the corresponding method embodiment described above. As shown in fig. 9, the method may include:
s801, receiving a second call request sent by a block link end of the authentication mechanism, where the second call request includes: the academic calendar proves the results.
Wherein, the academic demonstration result comprises: and the academic record certification information is certification information generated by the first block link points corresponding to the educational institutions based on a zero-knowledge certification technology according to the academic record information of the users, and comprises zero-knowledge certification parameters.
S802, based on the zero-knowledge proof technology, verifying whether the academic proof result meets the preset academic requirement or not, and generating the academic verification result.
And S803, returning a academic verification result to the block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful.
Optionally, if the academic certification information includes: user information, academic record education information and education institution information, above-mentioned based on zero knowledge proof technique, verify whether the academic record proves that the result accords with and presets the academic record requirement, generate the academic record and verify the result, include:
respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and obtaining a verification result; and generating a academic verification result according to the verification result.
Optionally, the request for proof of academic certification further comprises: the user information to be verified, whether the user information and the education institution information are valid or not respectively, includes:
verifying whether the user information is valid or not according to the user information to be verified; and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises the registered education institution information.
Optionally, the verifying whether the academic information meets the preset academic requirement based on the zero-knowledge proof technology may include:
generating a verification task according to the zero knowledge verification parameters; and executing a verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
For the content of this part, reference is made to the related description above, and the description of this application is not repeated here.
Based on the above embodiments, it should be noted that the same function implementing part in the first blockchain node and the second blockchain node may also be shared, so that the development efficiency may be improved.
Fig. 10 is a functional block diagram of a block chain based attestation apparatus provided in this embodiment of the present application, the basic principle and the technical effect of the attestation apparatus are the same as those of the corresponding method embodiments described above, and for a brief description, the corresponding contents in the method embodiments may be referred to for the parts not mentioned in this embodiment. As shown in fig. 10, the certification apparatus 100 includes:
a first receiving module 110, configured to receive a scholarly-calendar certification request sent by a user terminal, where the scholarly-calendar certification request includes user information;
a determining module 120, configured to determine, according to the academic record certification request, academic record information of the user;
a first sending module 130, configured to send a first call request to a first block link node, so that the first block link node generates academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, where the first call request includes the academic record information of the user, and the academic record certification information includes a zero knowledge certification parameter;
a second receiving module 140, configured to receive the academic aptitude information returned by the link point of the first block;
a second sending module 150, configured to send the academic record certification result to the user terminal, where the academic record certification result includes: and (4) academic certificate information.
In an alternative embodiment, the user's academic information includes one or more of the following: the first sending module 130 is specifically configured to generate a hash value corresponding to the academic record information of the user according to the academic record information of the user; and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an alternative embodiment, the second sending module 150 is specifically configured to generate a academic certificate identification code according to the academic certificate result; and sending the academic certificate identification code to the user terminal.
In an alternative embodiment, the first sending module 130 is specifically configured to send a first call request to a first blockchain node through a certification service interface of the first blockchain node, so that the first blockchain node generates a certification generating task according to the academic information of the user, and executes the certification generating task based on the zero-knowledge certification technology to generate the academic certification information.
In an optional embodiment, the first sending module 130 is further configured to send a registration request to the first block link point, where the registration request includes: educational institution information such that the first block link point registers the information of the educational institution based on a preset intelligent contract.
Fig. 11 is a functional block diagram of another block chain based attestation apparatus provided in this embodiment of the present application, the basic principle and the generated technical effect of the attestation apparatus are the same as those of the corresponding method embodiment described above, and for a brief description, the corresponding contents in the method embodiment may be referred to for the parts not mentioned in this embodiment. As shown in fig. 11, the proving apparatus 200 may include:
a first receiving module 210, configured to receive a academic certificate verification request sent by a user terminal, where the academic certificate verification request includes: the academic demonstration result comprises: the education institution comprises education institution information, education institution information and zero knowledge certification information, wherein the education institution information is the certification information generated by the first block link points corresponding to the education institution according to the education institution information of the user and based on the zero knowledge certification technology, and the education institution certification information comprises zero knowledge certification parameters;
the first sending module 220 is configured to send a second call request to the second block chain node, so that the second block chain node verifies whether the academic record verification result meets a preset academic record requirement based on a zero-knowledge proof technology to generate an academic record verification result, where the second call request includes: the result of the proof of the academic calendar;
a second receiving module 230, configured to receive a academic verification result returned by the second block link point, where the academic verification result is used to indicate whether verification is successful;
and a second sending module 240, configured to send the academic verification result to the user terminal.
In an alternative embodiment, the academic aptitude information includes: the first sending module 220 is specifically used for respectively verifying whether the user information and the education institution information are valid, verifying whether the education institution information meets the preset education institution requirements based on a zero-knowledge proof technology, and acquiring a verification result; and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: the first sending module 220 is specifically configured to verify whether the user information is valid according to the user information to be verified; and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises the registered education institution information.
In an alternative embodiment, the first sending module 220 is specifically configured to generate a verification task according to a zero-knowledge verification parameter; and executing a verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
Fig. 12 is a functional block diagram of another block chain-based certification device provided in this embodiment of the present application, which can be applied to a first block chain node corresponding to an educational institution on a block chain, and its basic principle and resulting technical effect are the same as those of the corresponding method embodiment described above, and for a brief description, reference may be made to corresponding contents in the method embodiment in a portion not mentioned in this embodiment. As shown in fig. 12, the certification apparatus 300 may include:
a first receiving module 310, configured to receive a first call request sent by a block link end of an educational institution, where the first call request includes academic information of a user;
the generating module 320 is configured to generate academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, where the academic record certification information includes zero knowledge certification parameters;
a first return module 330 for returning educational demonstration information to the end of the block link of the educational institution.
In an alternative embodiment, the user's academic information includes one or more of the following: a generation module 320 for generating a hash value corresponding to the academic record information of the user according to the academic record information of the user; and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
In an alternative embodiment, the generating module 320 is specifically configured to generate a proof generating task according to the academic information of the user; and acquiring a hash value corresponding to the academic information of the user according to the certification generation task.
In an alternative embodiment, if the user's academic information includes educational institution information, the educational institution information includes: the private key parameter of the education institution, the generating module 320, is specifically configured to verify whether the information of the education institution is valid according to the private key parameter of the education institution and a preset intelligent contract on the first block link node, where the preset intelligent contract includes information of a registered education institution, and the information of the registered education institution includes: public key parameters of the educational institution; and if the verification is valid, generating a certification generation task.
In an alternative embodiment, the proving apparatus further comprises: a registration module for receiving a registration request from a blockchain end of an educational institution, the registration request comprising: information of an educational institution; and registering information of the education institution based on the preset intelligent contract.
Fig. 13 is a functional block diagram of another block chain based attestation apparatus provided in this embodiment of the present application, where the attestation apparatus can be applied to a second block chain node on a block chain, and its basic principle and resulting technical effect are the same as those of the corresponding method embodiment described above, and for brief description, reference may be made to corresponding contents in the method embodiment for parts not mentioned in this embodiment. As shown in fig. 13, the proving apparatus 400 may include:
a second receiving module 410, configured to receive a second call request sent by a block link end of the authentication mechanism, where the second call request includes: the academic certification result comprises the following steps: the education institution comprises education institution information, education institution information and zero knowledge certification information, wherein the education institution information is the certification information generated by the first block link points corresponding to the education institution according to the education institution information of the user and based on the zero knowledge certification technology, and the education institution certification information comprises zero knowledge certification parameters;
the verification module 420 is configured to verify whether the academic record verification result meets a preset academic record requirement based on a zero-knowledge verification technology, and generate an academic record verification result;
a second return module 430 for returning a scholarly verification result to the blockchain end of the verification mechanism, the scholarly verification result indicating whether verification was successful.
In an alternative embodiment, the academic aptitude information includes: the verification module 420 is specifically used for respectively verifying whether the user information and the education institution information are valid, verifying whether the education institution information meets the preset education calendar requirement based on a zero-knowledge proof technology, and acquiring a verification result; and generating a academic verification result according to the verification result.
In an alternative embodiment, the request for proof of academic certification further comprises: the verification module 420 is specifically configured to verify whether the user information is valid according to the user information to be verified; and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises the registered education institution information.
In an optional embodiment, the verification module 420 is specifically configured to generate a verification task according to a zero-knowledge verification parameter; and executing a verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 14, the electronic device may include: a processor 510, a storage medium 520, and a bus 530, the storage medium 520 storing machine-readable instructions executable by the processor 510, the processor 510 communicating with the storage medium 520 via the bus 530 when the electronic device is operating, the processor 510 executing the machine-readable instructions to perform the steps of the above-described method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to perform the steps of the above method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (25)

1. A blockchain-based attestation system, comprising: at least one first blockchain node and at least one second blockchain node;
the first block chain node receives a first call request sent by a block chain end of an education institution, wherein the first call request comprises the academic information of the user; generating academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the academic record certification information comprises zero knowledge certification parameters; returning the educational demonstration information to a block link end of the educational institution;
the second blockchain node receives a second call request sent by a blockchain end of the authentication mechanism, wherein the second call request comprises: a scholarly-calendar proof result, the scholarly-calendar proof result comprising: the academic record certification information; verifying whether the academic record verification result meets the preset academic record requirement or not based on a zero-knowledge verification technology to generate an academic record verification result; returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful or not.
2. A blockchain-based attestation method, the method comprising:
receiving a academic record certification request sent by a user terminal, wherein the academic record certification request comprises user information;
determining the academic information of the user according to the academic certification request;
sending a first call request to a first block chain node, so that the first block chain node generates academic record certification information based on a zero knowledge certification technology according to the academic record information of the user, wherein the first call request comprises the academic record information of the user, and the academic record certification information comprises a zero knowledge certification parameter;
receiving the academic certification information returned by the first block link point;
sending a academic certification result to the user terminal, wherein the academic certification result comprises: the academic aptitude information.
3. The method of claim 2, wherein the user's scholarly information includes one or more of the following: the method comprises the following steps of generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of a user, wherein the academic record proving information comprises the following steps:
generating a hash value corresponding to the academic information of the user according to the academic information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
4. The method according to claim 2 or 3, wherein the sending the academic certification result to the user terminal comprises:
generating a academic record certification identification code according to the academic record certification result;
and sending the academic certificate identification code to the user terminal.
5. The method of claim 2, wherein sending the first invocation request to the first blockchain node comprises:
and sending the first call request to the first block link point through a certification service interface of the first block link node, so that the first block link point generates a certification generation task according to the academic information of the user, and executing the certification generation task based on a zero-knowledge certification technology to generate the academic certification information.
6. The method of claim 2, wherein prior to sending the first invocation request to the first blockchain node, the method further comprises:
sending a registration request to the first block link, the registration request comprising: educational institution information such that the first block link point registers the information of the educational institution based on a preset intelligent contract.
7. A method of blockchain-based attestation, applied to a blockchain end of a validation mechanism, the method comprising:
receiving a scholarly-record certification verification request sent by a user terminal, wherein the scholarly-record certification verification request comprises: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
sending a second call request to a second blockchain node, so that the second blockchain node verifies whether the academic record verification result meets a preset academic record requirement based on a zero-knowledge proof technology to generate an academic record verification result, wherein the second call request comprises: the result of the proof of the academic calendar;
receiving a academic verification result returned by the second block link point, wherein the academic verification result is used for indicating whether verification is successful or not;
and sending the academic verification result to the user terminal.
8. The method of claim 7, wherein the academic certification information comprises: the method comprises the following steps of verifying whether a academic certification result meets a preset academic requirement or not based on zero-knowledge certification technology to generate an academic verification result, wherein the method comprises the following steps:
respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
9. The method of claim 8, wherein the request for proof of academic verification further comprises: the user information to be verified, the verifying whether the user information and the education institution information are valid respectively, includes:
verifying whether the user information is valid or not according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
10. The method of claim 8, wherein verifying whether the academic information meets a preset academic requirement based on the zero-knowledge proof technology comprises:
generating a verification task according to the zero knowledge verification parameters;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
11. A blockchain-based attestation method applied to a first blockchain node corresponding to an educational institution on a blockchain, the method comprising:
receiving a first call request sent by a block link end of an educational institution, wherein the first call request comprises academic information of a user;
generating academic record information based on a zero knowledge proof technology according to the academic record information of the user, wherein the academic record information comprises a zero knowledge proof parameter;
returning the academic certification information to the block link end of the education institution to cause the block link end of the education institution to transmit the academic certification result to the user terminal according to the academic certification information, the user terminal generates a academic certification verification request according to the academic certification result and sends the academic certification verification request to a block link end of a verification mechanism, such that a blockchain end of the authentication mechanism sends a second call request to a second blockchain node on the blockchain in accordance with the proof of academic authentication request, and receiving the academic verification result returned by the second block chain node according to the second calling request, the second invocation request including the academic certification result, the academic verification result indicating whether verification is successful, the academic record verification result is obtained by verifying whether the academic record verification result meets the preset academic record requirement or not based on a zero-knowledge proof technology.
12. The method of claim 11, wherein the user's scholarly information includes one or more of the following: the method comprises the following steps of generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of a user, wherein the academic record proving information comprises the following steps:
generating a hash value corresponding to the academic information of the user according to the academic information of the user;
and generating academic record certification information based on a zero knowledge certification technology according to the hash value corresponding to the academic record information of the user.
13. The method of claim 12, wherein generating the hash value corresponding to the academic information of the user according to the academic information of the user comprises:
generating a certification generation task according to the academic information of the user;
and acquiring a hash value corresponding to the academic information of the user according to the certification generation task.
14. The method of claim 13, wherein if the user's scholarly information includes educational institution information, the educational institution information includes: the private key parameter of the education institution, the generation of the proof generation task according to the academic information of the user, comprises:
verifying whether the education institution information is valid according to private key parameters of the education institution and a preset intelligent contract on the first block chain node, wherein the preset intelligent contract comprises information of registered education institutions, and the information of the registered education institutions comprises: public key parameters of the educational institution;
and if the verification is valid, generating the certification generating task.
15. The method according to any one of claims 11-14, further comprising:
receiving a registration request sent by a blockchain end of the educational institution, the registration request comprising: information of the educational institution;
registering information of the education institution based on a preset intelligent contract.
16. A blockchain-based attestation method, applied to a second blockchain node on a blockchain, the method comprising:
receiving a second call request sent by a block link end of a validation mechanism, the second call request comprising: a scholarly-calendar proof result, the scholarly-calendar proof result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
verifying whether the academic record certification result meets the preset academic record requirement or not based on a zero-knowledge certification technology to generate an academic record verification result;
returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful or not.
17. The method of claim 16, wherein the academic certification information comprises: the method comprises the following steps of verifying whether a academic demonstration result meets a preset academic requirement or not based on a zero-knowledge demonstration technology to generate an academic verification result, wherein the method comprises the following steps:
respectively verifying whether the user information and the education institution information are effective, verifying whether the academic information meets the preset academic requirement based on a zero-knowledge proof technology, and acquiring a verification result;
and generating a academic verification result according to the verification result.
18. The method of claim 17, wherein the academic certificate result is obtained according to an academic certificate verification request sent by a user terminal to a block link end of the verification mechanism, and the academic certificate verification request further comprises: the user information to be verified, the verifying whether the user information and the education institution information are valid respectively, includes:
verifying whether the user information is valid or not according to the user information to be verified;
and verifying whether the education institution information is valid according to a preset intelligent contract on the second block chain node, wherein the preset intelligent contract comprises registered education institution information.
19. The method of claim 17, wherein verifying whether the academic information meets a preset academic requirement based on the zero-knowledge proof technology comprises:
generating a verification task according to the zero knowledge verification parameters;
and executing the verification task based on a zero-knowledge proof technology, and verifying whether the academic information meets the preset academic requirement.
20. An attestation apparatus based on a blockchain, the attestation apparatus comprising:
the first receiving module is used for receiving a scholarly calendar proving request sent by a user terminal, wherein the scholarly calendar proving request comprises user information;
the determining module is used for determining the academic information of the user according to the academic certification request;
a first sending module, configured to send a first invocation request to a first block link node, so that the first block link node generates academic certificate information based on a zero knowledge proof technology according to the academic information of the user, where the first invocation request includes the academic information of the user, and the academic certificate information includes a zero knowledge proof parameter;
the second receiving module is used for receiving the academic certificate information returned by the first block link point;
a second sending module, configured to send a academic demonstration result to the user terminal, where the academic demonstration result includes: the academic aptitude information.
21. A blockchain-based attestation device, for use with a blockchain end of a validation mechanism, the attestation device comprising:
a first receiving module, configured to receive a academic certificate verification request sent by a user terminal, where the academic certificate verification request includes: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
a first sending module, configured to send a second call request to a second block chain node, so that the second block chain node verifies, based on a zero-knowledge proof technique, whether the academic proof result meets a preset academic requirement to generate an academic verification result, where the second call request includes: the result of the proof of the academic calendar;
the second receiving module is used for receiving a academic verification result returned by the second block link point, wherein the academic verification result is used for indicating whether verification is successful;
and the second sending module is used for sending the academic verification result to the user terminal.
22. An attestation apparatus based on blockchains, applied to a first blockchain node corresponding to an educational institution on a blockchain, the attestation apparatus comprising:
the first receiving module is used for receiving a first calling request sent by a block link end of an education institution, and the first calling request comprises the academic information of a user;
the generating module is used for generating academic record proving information based on a zero-knowledge proving technology according to the academic record information of the user, wherein the academic record proving information comprises zero-knowledge proving parameters;
a first return module for returning the educational institution's proof of academic information to a block link end, so that the block link end of the education institution transmits the education institution's education result to the user terminal according to the education institution's education information, the user terminal generates a academic certification verification request according to the academic certification result and sends the academic certification verification request to a block link end of a verification mechanism, such that a blockchain end of the authentication mechanism sends a second call request to a second blockchain node on the blockchain in accordance with the proof of academic authentication request, and receiving the academic verification result returned by the second block chain node according to the second calling request, the second invocation request including the academic certification result, the academic verification result indicating whether verification is successful, the academic record verification result is obtained by verifying whether the academic record verification result meets the preset academic record requirement or not based on a zero-knowledge proof technology.
23. An attestation apparatus based on blockchains, applied to a second blockchain node on a blockchain, the attestation apparatus comprising:
a second receiving module, configured to receive a second call request sent by a block link end of the authentication mechanism, where the second call request includes: a scholarly-calendared certification result, the scholarly-calendared certification result comprising: the education institution comprises education institution information, academic demonstration information and zero knowledge demonstration information, wherein the academic demonstration information is the demonstration information generated by a first block link point corresponding to the education institution based on a zero knowledge demonstration technology according to the academic information of a user, and comprises zero knowledge demonstration parameters;
the verification module is used for verifying whether the academic record certification result meets the preset academic record requirement or not based on zero-knowledge certification technology and generating an academic record verification result;
a second returning module for returning the academic verification result to a block link end of the verification mechanism, wherein the academic verification result is used for indicating whether verification is successful.
24. An electronic device, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating via the bus when the electronic device is operating, the processor executing the machine-readable instructions to perform the steps of the blockchain based attestation method of any of claims 2 to 19.
25. A computer-readable storage medium, having stored thereon a computer program for performing, when being executed by a processor, the steps of the blockchain-based attestation method according to any one of claims 2 to 19.
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