CN111723398A - Method and system for verifying electronic credential for protecting privacy - Google Patents
Method and system for verifying electronic credential for protecting privacy Download PDFInfo
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- CN111723398A CN111723398A CN202010476102.6A CN202010476102A CN111723398A CN 111723398 A CN111723398 A CN 111723398A CN 202010476102 A CN202010476102 A CN 202010476102A CN 111723398 A CN111723398 A CN 111723398A
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- G06—COMPUTING; CALCULATING OR COUNTING
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- 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
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- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/901—Indexing; Data structures therefor; Storage structures
- G06F16/9014—Indexing; Data structures therefor; Storage structures hash tables
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- G06F21/6227—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 where protection concerns the structure of data, e.g. records, types, queries
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Abstract
A method and a system for verifying electronic certificates for protecting privacy comprise the steps of establishing a checking library, wherein the checking library at least comprises a first hash value and an ID of the electronic certificate, the ID of the electronic certificate is associated with the first hash value, and the first hash value is generated based on a key element of the electronic certificate; acquiring the checking library; obtaining ID of an electronic certificate to be checked, comparing the ID with the checking library, and returning first verification information when the ID does not exist; when the ID exists, key elements of the electronic certificate to be inspected are obtained, and a second hash value is generated; and comparing the first hash value with the second hash value, and returning second verification information. In the invention, the establishment of the checking library ensures that the privacy of the user can be protected in the checking process; the establishment of the checking library and the use of the checking library are mutually independent, so that the limitation of the checking service on the information protection of the service provider is eliminated, the checking service provider can be selected more widely, and the user experience is improved.
Description
Technical Field
The present invention relates generally to the field of electronic credential verification, and more particularly, to a method and system for privacy-preserving electronic credential verification.
Background
At present, the use of electronic certificates is more and more common, and the existing electronic certificate verification firstly checks the serial number of the electronic certificate and then checks the information carried by the electronic certificate, i.e. checks the key information. Therefore, in consideration of protecting the privacy of the user, the service party for electronic certificate verification can only be provided by the administrative department with corresponding qualification, so that while a large amount of administrative resources are occupied, the disclosure of user data still cannot be avoided, for example, key information of a real electronic certificate can be obtained by repeatedly checking electronic certificates with the same number. Moreover, since administrative resources are limited, when the resources invested in the authentication service are insufficient, the user may be crowded while enjoying the authentication service, which results in poor user experience. If the pinging service for the e-credential is delivered to a third party authority for provisioning, there is a risk that the third party authority will misuse the e-credential data and reveal the privacy of the user.
How to protect the privacy of the user and improve the verification efficiency is an urgent problem to be solved in the electronic certificate verification service.
Disclosure of Invention
In order to solve the above problem, the present invention provides a method for verifying an electronic credential with privacy protection, including, in a first step S1, establishing a ping library, where the ping library includes at least a first hash value and an ID of the electronic credential, the ID of the electronic credential is associated with the first hash value, and the first hash value is generated based on a key element of the electronic credential; a second step S2, acquiring the inspection library; step S3, obtaining ID of the electronic certificate to be checked, comparing the ID with the checking library, and returning first verification information when the ID does not exist; when the ID exists, key elements of the electronic certificate to be inspected are obtained, and a second hash value is generated; and comparing the first hash value with the second hash value, and returning second verification information.
According to one embodiment of the present invention, a pinging bank is established in a first unit, the pinging bank is retrieved from the first unit by a second unit, and an electronic credential is verified at the second unit, wherein the second unit is independent of the first unit.
According to one embodiment of the present invention, an ID of an electronic credential is obtained in a first unit, a first hash value is generated based on a key element of the electronic credential, the ID and the first hash value are obtained from the first unit by a second unit, a validation library is formed, and the electronic credential is verified at the second unit, wherein the second unit is independent from the first unit.
According to one embodiment of the invention, establishing the checking library comprises extracting key elements of the electronic certificate, and obtaining a first hash value after operation; extracting an ID of the electronic credential to be associated with the first hash value; and repeating the steps until all the electronic certificates are processed.
According to one embodiment of the invention, the key element comprises at least one item of user privacy information.
According to an embodiment of the present invention, the ID of the electronic credential refers to a tag uniquely corresponding to the electronic credential, and is in any form of a number, a barcode, or a two-dimensional code.
According to another aspect of the present invention, there is provided a system for verifying an electronic credential with privacy protection, including an electronic credential management unit 1, a verification unit 2, where the electronic credential management unit 1 is configured to provide an ID of an electronic credential and a first hash value to form a verification library, where the verification library includes at least the first hash value and the ID of the electronic credential, and the ID of the electronic credential is associated with the first hash value, and the first hash value is generated based on a key element of the electronic credential; the verification unit 2 is connected with the electronic document management unit 1 and is used for acquiring the checking library and verifying the authenticity of the electronic document based on the checking library.
According to one embodiment of the present invention, the electronic credential management unit 1 and the authentication unit 2 exist independently of each other.
According to one embodiment of the present invention, the electronic credential management unit 1 includes a first module, a second module, and a third module, where the first module is used to obtain an ID and key information of an electronic credential; the second module is used for calculating the key information to obtain a first hash value; the third module is configured to associate the ID of the e-credential with the first hash value.
In the invention, the establishment of the checking library ensures that the privacy of the user can be protected in the checking process; the first unit and the second unit are arranged independently, so that the limitation of the checking service on the information protection of the service provider is eliminated, the checking service can be selected more widely, and the user experience is improved.
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FIG. 1 is a schematic diagram of method steps for privacy-preserving electronic credential validation;
fig. 2 is a schematic diagram of a system for privacy-preserving electronic credential validation.
Detailed Description
In the following detailed description of the preferred embodiments of the invention, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration, specific features of the invention, such that the advantages and features of the invention may be more readily understood and appreciated. The following description is an embodiment of the claimed invention, and other embodiments related to the claims not specifically described also fall within the scope of the claims.
Fig. 1 shows a schematic diagram of method steps for privacy-preserving e-credential validation.
As shown in fig. 1, a method for verifying an electronic credential with privacy protection includes, in a first step S1, establishing a ping base, where the ping base includes at least a first hash value and an ID of the electronic credential, the ID of the electronic credential is associated with the first hash value, and the first hash value is generated based on a key element of the electronic credential; a second step S2, acquiring the inspection library; step S3, obtaining ID of the electronic certificate to be checked, comparing the ID with the checking library, and returning first verification information when the ID does not exist; when the ID exists, key elements of the electronic certificate to be inspected are obtained, and a second hash value is generated; and comparing the first hash value with the second hash value, and returning second verification information.
The checking library is a unit containing the ID and the first hash value of the electronic certificate opened really.
The ID of the electronic certificate refers to a label in the form of a number, a bar code, a two-dimensional code and the like which uniquely corresponds to the electronic certificate.
The key information refers to information, money amount, items and the like of the user carried in the electronic certificate.
In the invention, the ID of the electronic certificate is firstly obtained, the key information of the electronic certificate is calculated to form a first hash value, and the ID and the first hash value are associated to be used as a reference object for the electronic certificate to be verified to find out the authenticity.
In the invention, the IDs and the first hash values corresponding to the plurality of electronic vouchers are collected and stored to form an inspection library.
In the verification process, the checking party provides the electronic credential to be checked so as to obtain the ID and the key information of the electronic credential to be checked, and similarly, the key information is also subjected to hash operation to obtain a second hash value, and the ID and the second hash value are compared in the checking library, so that the authenticity of the electronic credential to be checked can be obtained.
In the invention, the checking process can only contact the value after the Hash operation, and can not contact the information of the real user, thereby protecting the privacy of the user. Meanwhile, the comparison of multiple contents in the prior art is changed into the comparison of only the ID and the hash value, so that the reduction of the inspection contents is realized, and the inspection is more rapid and convenient.
According to one embodiment of the present invention, a pinging bank is established in a first unit, the pinging bank is retrieved from the first unit by a second unit, and an electronic credential is verified at the second unit, wherein the second unit is independent of the first unit.
In the present invention, the first unit function is to provide a ping library. There may be a plurality of second units, each of which obtains a copy of the challenge library from the first unit, each of which faces the user for a challenge of the electronic credential to be challenged.
Since the checking library does not include the user information carried by the electronic certificate, only includes the ID of the electronic certificate and the hash value formed according to the key information, the checking service provider cannot contact the privacy information of the user in the checking process.
The arrangement of the invention enables the management department to outsource the inspection work as an independent service, and the personnel or the company which take over the inspection work can well complete the inspection work, but still can keep the safety of the user information.
According to one embodiment of the invention, establishing the checking library comprises extracting key elements of the electronic certificate, and obtaining a first hash value after operation; extracting an ID of the electronic credential to be associated with the first hash value; and repeating the steps until all the electronic certificates are processed.
The creation of the pinging library is formed in a module or unit with electronic certificate management authority, and the part of the structure is not oriented to the user to be inquired. For example, the first unit obtains the ID of the electronic certificate and obtains the corresponding first hash value, and after repeating the steps, the first unit forms a checking library containing a plurality of "ID-first hash values", and then each second unit copies the checking library.
The checking library may also be formed in a module or unit having a checking function, for example, the first unit obtains an ID of the electronic certificate and obtains a corresponding first hash value, and transmits the two to the second unit after associating the two, and after repeating the steps, the second unit forms a checking library including a plurality of "IDs — first hash values".
The present invention preferably forms the pinging library at the first unit and is replicated from the first unit by the second unit.
According to one embodiment of the present invention, the key element includes at least one item of user privacy information.
Fig. 2 shows a system diagram of privacy-preserving electronic credential validation.
As shown in fig. 2, a system for verifying an electronic credential for protecting privacy includes an electronic credential management unit 1 and a verification unit 2, where the electronic credential management unit 1 is configured to provide an ID of an electronic credential and a first hash value to form a verification library, where the verification library includes at least the first hash value and the ID of the electronic credential, and the ID of the electronic credential is associated with the first hash value, and the first hash value is generated based on a key element of the electronic credential; the verification unit 2 is connected with the electronic document management unit 1 and is used for acquiring the checking library and verifying the authenticity of the electronic document based on the checking library.
The electronic certificate management unit 1 obtains the ID and the key information from the original electronic certificate, and performs hash operation on the key information, so that the data in the checking library does not relate to the information of the user, but the authenticity of the electronic certificate can be evaluated accurately.
Due to the need for user information protection, the electronic credential management unit 1 must be managed by an entity or department with user information management authority. Correspondingly, the authentication unit 2, since it does not contact user information, can be managed by any suitable unit or department.
In practice, the electronic credential management unit 1 may be a server of a tax administration department, and correspondingly, the authentication unit 2 may be a third-party service provided by a partner of the tax administration department providing an authentication service.
According to one embodiment of the present invention, the electronic credential management unit 1 and the authentication unit 2 exist independently of each other.
In the present invention, the electronic document management unit 1 and the verification unit 2 may be managed by a management department of the electronic document, or managed by different departments, and preferably, they exist independently.
According to one embodiment of the present invention, the electronic credential management unit 1 includes a first module, a second module, and a third module, where the first module is used to obtain an ID and key information of an electronic credential; the second module is used for calculating the key information to obtain a first hash value; the third module is configured to associate the ID of the e-credential with the first hash value.
In the invention, the establishment of the checking library ensures that the privacy of the user can be protected in the checking process; the first unit and the second unit are arranged independently, so that the limitation of the checking service on the information protection of the service provider is eliminated, the checking service can be selected more widely, and the user experience is improved.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (9)
1. A method of privacy protected electronic credential validation, comprising,
a first step (S1) of establishing a checking library, wherein the checking library at least comprises a first hash value and an ID of an electronic certificate, the ID of the electronic certificate is associated with the first hash value, and the first hash value is generated based on a key element of the electronic certificate;
a second step (S2) of acquiring the inspection library;
the third step (S3) of obtaining the ID of the electronic document to be checked and comparing with the checking library,
when the ID does not exist, returning first verification information;
when the ID exists, key elements of the electronic certificate to be inspected are obtained, and a second hash value is generated; and comparing the first hash value with the second hash value, and returning second verification information.
2. The method of claim 1, wherein,
establishing a checking library in the first unit, obtaining the checking library from the first unit by the second unit, and verifying the electronic certificate in the second unit, wherein the second unit is independent from the first unit.
3. The method of claim 1, wherein,
the method comprises the steps of obtaining an ID of an electronic certificate in a first unit, generating a first hash value based on key elements of the electronic certificate, obtaining the ID and the first hash value from the first unit by a second unit to form a checking library, and verifying the electronic certificate in the second unit, wherein the second unit is independent of the first unit.
4. The method of claim 1, wherein establishing a ping library comprises,
extracting key elements of the electronic certificate, and obtaining a first hash value after operation;
extracting an ID of the electronic credential to be associated with the first hash value;
and repeating the steps until all the electronic certificates are processed.
5. The method of claim 1, wherein the key element comprises at least one item of user privacy information.
6. The method according to claim 1, wherein the ID of the electronic document is a tag uniquely corresponding to the electronic document, and is in the form of any one of a number, a barcode, and a two-dimensional code.
7. A system for verifying electronic certificates for protecting privacy comprises an electronic certificate management unit (1) and a verification unit (2),
the electronic credential management unit (1) is used for providing an ID of an electronic credential and a first hash value to form a checking library, wherein the checking library at least comprises the first hash value and the ID of the electronic credential, the ID of the electronic credential is associated with the first hash value, and the first hash value is generated based on a key element of the electronic credential;
the verification unit (2) is connected with the electronic document management unit (1) and is used for acquiring the checking library and verifying the authenticity of the electronic document based on the checking library.
8. The system according to claim 7, wherein said electronic credential management unit (1) and said authentication unit (2) exist independently of each other.
9. The system according to claim 7, wherein said electronic credential management unit (1) comprises a first module, a second module, a third module,
the first module is used for acquiring the ID and key information of the electronic certificate;
the second module is used for calculating the key information to obtain a first hash value;
the third module is configured to associate the ID of the e-credential with the first hash value.
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| CN202010476102.6A CN111723398A (en) | 2020-05-29 | 2020-05-29 | Method and system for verifying electronic credential for protecting privacy |
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