CN115567221A - Certificate hierarchical management method and device - Google Patents
Certificate hierarchical management method and device Download PDFInfo
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- CN115567221A CN115567221A CN202211157454.0A CN202211157454A CN115567221A CN 115567221 A CN115567221 A CN 115567221A CN 202211157454 A CN202211157454 A CN 202211157454A CN 115567221 A CN115567221 A CN 115567221A
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- 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
- H04L9/3263—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 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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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
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- 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
- H04L9/3247—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 involving digital signatures
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- 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
- H04L9/3263—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 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
- H04L9/3268—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 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Computer Hardware Design (AREA)
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The application discloses a certificate hierarchical management method and device, which can be applied to the field of Internet of things or the field of finance. The method disclosed by the application comprises the following steps: receiving a certificate signing request from a terminal entity; after the certificate signing request is verified, signing the certificate of the terminal entity; and sending the signed certificate to the terminal entity. The digital certificate of the terminal entity is managed in a grading mode by the Internet of things platform digital certificate registration and approval mechanism, the digital certificate registration and approval mechanism and the certification center are released from massive terminal entity certificate requests, the Internet of things platform digital certificate registration and approval mechanism conducts grading self-control management and control on the digital certificate of the Internet of things terminal entity equipment, and the burden of the digital certificate registration and approval mechanism and the certification center is effectively relieved when the certificate of the terminal entity is signed.
Description
Technical Field
The application relates to the technical field of Internet of things, in particular to a certificate hierarchical management method and device.
Background
With the popularization of the internet of things technology, the machines are interconnected and intercommunicated at an unprecedented speed. However, due to the characteristics of massive and fragmented devices of the internet of things and natural distribution, the interconnection and intercommunication change the taste, and a large number of news reports of network intrusion are emerging almost all the time. In addition, the security mechanism of the device itself is not necessarily perfect enough, and direct threat to system security is caused when the enterprise-level internet of things platform is accessed, so that great potential safety hazard exists, and therefore, it is required to ensure that only the internet of things device passing authentication and authorization can be accessed.
At present, when a large number of terminal entities of the internet of things are signed and issued, a great burden is caused on a digital certificate registration and approval mechanism and a certificate authority due to the large number of the terminal entities.
Therefore, how to reduce the burden on the digital certificate registration and approval authority and the certificate authority when signing the certificate of the terminal entity becomes a technical problem to be solved in the field.
Disclosure of Invention
In view of the above problems, the present application provides a certificate hierarchical management method and apparatus, so as to reduce the burden of a digital certificate registration and approval authority and a certificate authority when signing a certificate of a terminal entity.
The embodiment of the application discloses the following technical scheme:
in a first aspect, an embodiment of the present application provides a certificate hierarchical management method, which is applied to a digital certificate registration and approval mechanism of an internet of things platform, and the method includes:
receiving a certificate signing request from a terminal entity;
after the certificate signing request is verified, signing the certificate of the terminal entity;
and sending the signed certificate to the terminal entity.
Optionally, the method further includes:
when the private key needs to be updated, an updating request is sent to a digital certificate registration and approval mechanism, and the digital certificate registration and approval mechanism transmits the updating request to a certificate authority after the main body which sends the updating request passes the verification so as to update the private key.
Optionally, forwarding the update request to an authentication center to update the private key includes:
forwarding the update request to an intermediate authentication center;
and the intermediate certificate authority signs the certificate of the registration and approval mechanism of the digital certificate of the platform of the Internet of things according to the updating request so as to update the private key.
Optionally, the certificate signing request includes an unsigned public key generated by the terminal entity;
the method further comprises the following steps:
and after the certificate signature request is verified, binding the public key with a terminal entity corresponding to the certificate signature request.
Optionally, the signing the certificate of the terminal entity includes:
applying a digital signature to the certificate of the terminal entity using a pre-stored private key.
In a second aspect, an embodiment of the present application provides a certificate hierarchical management apparatus, which is applied to a digital certificate registration and approval mechanism of an internet of things platform, and the apparatus includes:
a receiving module for receiving a certificate signing request from a terminal entity;
the signature module is used for signing the certificate of the terminal entity after the certificate signing request is verified;
and the sending module is used for sending the signed certificate to the terminal entity.
Optionally, the apparatus further comprises:
and the updating module is used for initiating an updating request to a digital certificate registration and approval mechanism when the private key needs to be updated, so that the digital certificate registration and approval mechanism forwards the updating request to a certificate authority after the digital certificate registration and approval mechanism passes the verification of a main body initiating the updating request, and the private key is updated.
Optionally, the update module is specifically configured to:
forwarding the update request to an intermediate authentication center;
and the intermediate certificate authority signs the certificate of the Internet of things platform digital certificate registration approval authority according to the updating request so as to update the private key.
Optionally, the certificate signing request includes an unsigned public key generated by the terminal entity;
the device further comprises:
and the binding module is used for binding the public key with the terminal entity corresponding to the certificate signature request after the certificate signature request passes the verification.
Optionally, the signature module is specifically configured to:
applying a digital signature to the certificate of the terminal entity using a pre-stored private key.
Compared with the prior art, the method has the following beneficial effects:
the method comprises the steps that a certificate signing request from a terminal entity is received through an Internet of things platform digital certificate registration approval mechanism; after the certificate signing request is verified, signing the certificate of the terminal entity; and sending the signed certificate to the terminal entity. The digital certificate of the terminal entity is managed in a grading mode by the Internet of things platform digital certificate registration and approval mechanism, the digital certificate registration and approval mechanism and the certification center are released from massive terminal entity certificate requests, the Internet of things platform digital certificate registration and approval mechanism conducts grading self-control management and control on the digital certificate of the Internet of things terminal entity equipment, and the burden of the digital certificate registration and approval mechanism and the certification center is effectively relieved when the certificate of the terminal entity is signed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a certificate hierarchical management method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a private key updating method of an internet of things platform digital certificate registration and approval mechanism according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a certificate hierarchical management apparatus according to an embodiment of the present application.
Detailed Description
As described above, when issuing certificates to a large number of terminal entities of the internet of things, the digital certificate registration and approval authority and the certificate authority are greatly burdened due to the large number of terminal entities.
The inventor researches and invents a certificate hierarchical management method and a certificate hierarchical management device, so as to reduce the burden of a digital certificate registration and approval authority and a certificate authority when signing the certificate of a terminal entity.
It should be noted that the certificate hierarchical management method and device provided by the invention can be used in the field of internet of things or the financial field. Or which is only an example, and the application field of the certificate hierarchical management method and apparatus provided by the present invention is not limited.
In order to make the technical solutions of the present application better understood, 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 only a part of the embodiments of the present application, and not all of the embodiments. 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.
Method embodiment
Referring to fig. 1, which is a schematic flowchart of a certificate hierarchical management method provided in an embodiment of the present application, including the following steps:
s101, receiving a certificate signing request from a terminal entity.
In the embodiment provided by the application, the method can be applied to an Internet of things platform digital certificate registration and approval mechanism (Internet of things platform RA). It should be noted that the digital certificate registration and approval mechanism and the digital certificate registration and approval mechanism (RA) of the platform of the internet of things are two different platforms.
It should be noted that the terminal entity is an entity machine or entity equipment in the internet of things, and the terminal entity can normally realize its function after being signed by a certificate. The unsigned public key generated by the end entity device itself may be included in the certificate signing request.
And S102, after the certificate signing request is verified, signing the certificate of the terminal entity.
After receiving a certificate signing request sent by a terminal entity, an Internet of things platform RA firstly needs to verify the identity of an application subject, binds a public key with the identity and attributes of an expected certificate holder after the verification is passed, namely the terminal entity, and applies a digital signature to the certificate of the terminal entity by using a prestored private key so as to finish signing the certificate of the terminal entity.
S103, sending the signed certificate to the terminal entity.
In the embodiment provided by the application, after the signing of the certificate of the terminal entity is completed, the signed certificate can be returned to the terminal entity through the message, so that the terminal entity obtains the signed certificate and can normally realize the function of the terminal entity.
The certificate hierarchical management method provided by the embodiment of the application receives a certificate signing request from a terminal entity; after the certificate signing request is verified, signing the certificate of the terminal entity; and sending the signed certificate to the terminal entity. The digital certificate of the terminal entity is managed in a grading way by the digital certificate registration and approval mechanism of the platform of the Internet of things, the digital certificate registration and approval mechanism and the certification center are released from massive terminal entity certificate requests, the digital certificate registration and approval mechanism of the platform of the Internet of things carries out grading self-control management and control on the digital certificate of the terminal entity equipment of the Internet of things, and the burden of the digital certificate registration and approval mechanism and the certification center is effectively reduced when the certificate of the terminal entity is signed.
Referring to fig. 2, the figure is a schematic flow chart of a private key updating method of an internet of things platform digital certificate registration and approval mechanism provided in the embodiment of the present application, and the method includes the following steps:
s201, when the private key of the Internet of things platform digital certificate registration and approval mechanism needs to be updated, an update request is sent to the digital certificate registration and approval mechanism.
It should be noted that the reason why the digital certificate registration and approval authority of the platform of the internet of things is capable of signing the certificate of the terminal entity is that the digital certificate registration and approval authority possesses a private key that can apply a digital signature to the certificate. The private key is updated according to actual conditions, for example, in the embodiment provided by the application, the private key is updated once per year according to the third-level iso-claim requirement, and an update request is sent to a digital certificate registration approval authority (RA) when the update is needed.
S202, after the digital certificate registration approval mechanism passes the verification of the updating request, the updating request is forwarded to an intermediate authentication center.
It should be noted that the digital certificate registration and approval mechanism (RA) and the internet of things platform digital certificate registration and approval mechanism (internet of things platform RA) are two different platforms, and after receiving an update request from the internet of things platform RA, the RA verifies the identity of the application subject, and after the update request is successfully verified, forwards the update request to the intermediate certificate authority (intermediate CA).
And S203, the intermediate certificate authority signs the certificate of the Internet of things platform digital certificate registration and approval mechanism according to the updating request so as to update the private key.
In the embodiment provided by the application, an intermediate certificate authority (intermediate CA) may sign a certificate of the internet of things platform RA for the update request, so as to update the private key of the internet of things platform. The reason why the intermediate certificate authority can sign the certificate of the internet of things platform RA is that the intermediate CA has a signed certificate, and the certificate of the intermediate CA also needs to be signed, so that the certificate of the intermediate CA can be signed by using a root certificate authority (root CA).
According to the private key updating method of the Internet of things platform digital certificate registration and approval mechanism, when the private key of the Internet of things platform digital certificate registration and approval mechanism needs to be updated, an updating request is sent to the digital certificate registration and approval mechanism; after the update request is verified, forwarding the update request to an intermediate authentication center; and the intermediate cognitive center signs the certificate of the Internet of things platform digital certificate registration approval mechanism according to the updating request so as to update the private key. The private key of the Internet of things platform digital certificate registration and approval mechanism is updated through the digital certificate registration and approval mechanism and the cognitive center, so that the Internet of things platform digital certificate registration and approval mechanism can sign the certificate of the terminal entity, the digital certificate registration and approval mechanism and the certificate center do not directly participate in the certificate signing process of the terminal entity, and the burden of the digital certificate registration and approval mechanism and the certificate center can be relieved when the certificate of the terminal entity is signed.
Device embodiment
Referring to fig. 3, this figure is a schematic structural diagram of a certificate hierarchy management apparatus according to an embodiment of the present application, including: a receiving module 301, a signature module 302 and a sending module 303.
The receiving module 301 is configured to receive a certificate signing request from a terminal entity;
a signature module 302, configured to sign the certificate of the terminal entity after the certificate signing request is verified;
a sending module 303, configured to send the signed certificate to the terminal entity.
Optionally, the apparatus further comprises:
and the updating module is used for initiating an updating request to a digital certificate registration and approval mechanism when the private key needs to be updated, so that the digital certificate registration and approval mechanism forwards the updating request to a root certificate authority after the digital certificate registration and approval mechanism passes the verification of a main body initiating the updating request, and the private key is updated.
Optionally, the update module is specifically configured to:
forwarding the update request to an intermediate authentication center;
the intermediate authentication center forwards the updating request to a root authentication center;
and the root certificate authority signs the certificate of the Internet of things platform digital certificate registration approval authority according to the updating request so as to update the private key.
Optionally, the certificate signing request includes an unsigned public key generated by the terminal entity;
the device further comprises:
and the binding module is used for binding the public key with the terminal entity corresponding to the certificate signature request after the certificate signature request passes the verification.
Optionally, the signature module 302 is specifically configured to:
applying a digital signature to the certificate of the terminal entity using a pre-stored private key.
The certificate hierarchical management device provided by the embodiment of the application utilizes the receiving module, the signature module and the sending module to receive a certificate signature request from a terminal entity through a digital certificate registration and approval mechanism of an Internet of things platform; after the certificate signing request is verified, signing the certificate of the terminal entity; and sending the signed certificate to the terminal entity. The digital certificate of the terminal entity is managed in a grading mode by the Internet of things platform digital certificate registration and approval mechanism, the digital certificate registration and approval mechanism and the certification center are released from massive terminal entity certificate requests, the Internet of things platform digital certificate registration and approval mechanism conducts grading self-control management and control on the digital certificate of the Internet of things terminal entity equipment, and the burden of the digital certificate registration and approval mechanism and the certification center is effectively relieved when the certificate of the terminal entity is signed.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the modules described as separate components may or may not be physically separate, and the components suggested as modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A certificate hierarchical management method is applied to a digital certificate registration and approval mechanism of an Internet of things platform, and comprises the following steps:
receiving a certificate signing request from a terminal entity;
after the certificate signing request is verified, signing the certificate of the terminal entity;
and sending the signed certificate to the terminal entity.
2. The method of claim 1, wherein signing the certificate of the terminal entity comprises:
applying a digital signature to the certificate of the terminal entity using a pre-stored private key.
3. The method of claim 2, further comprising:
when the private key needs to be updated, an updating request is sent to a digital certificate registration and approval mechanism, and the digital certificate registration and approval mechanism transmits the updating request to a certificate authority after the main body which sends the updating request passes the verification so as to update the private key.
4. The method of claim 3, wherein forwarding the update request to a certificate authority to update the private key comprises:
forwarding the update request to an intermediate authentication center;
and the intermediate certificate authority signs the certificate of the Internet of things platform digital certificate registration approval authority according to the updating request so as to update the private key.
5. The method of claim 1, wherein the certificate signing request includes an unsigned public key generated by the terminal entity;
the method further comprises the following steps:
and after the certificate signature request is verified, binding the public key with a terminal entity corresponding to the certificate signature request.
6. The utility model provides a certificate hierarchical management device which characterized in that is applied to thing networking platform digital certificate registration approval mechanism, the device includes:
a receiving module for receiving a certificate signing request from a terminal entity;
the signature module is used for signing the certificate of the terminal entity after the certificate signing request is verified;
and the sending module is used for sending the signed certificate to the terminal entity.
7. The apparatus of claim 6, further comprising:
and the updating module is used for initiating an updating request to a digital certificate registration and approval mechanism when the private key needs to be updated, so that the digital certificate registration and approval mechanism forwards the updating request to a certificate authority after the digital certificate registration and approval mechanism passes the verification of a main body initiating the updating request, and the private key is updated.
8. The apparatus of claim 7, wherein the update module is specifically configured to:
forwarding the update request to an intermediate authentication center;
and the intermediate certificate authority signs the certificate of the Internet of things platform digital certificate registration approval authority according to the updating request so as to update the private key.
9. The apparatus of claim 6, wherein the certificate signing request includes an unsigned public key generated by the terminal entity;
the device further comprises:
and the binding module is used for binding the public key with the terminal entity corresponding to the certificate signature request after the certificate signature request passes the verification.
10. The apparatus according to claim 6, wherein the signature module is specifically configured to:
and applying the digital signature to the certificate of the terminal entity by utilizing a pre-stored private key.
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| CN202211157454.0A CN115567221A (en) | 2022-09-22 | 2022-09-22 | Certificate hierarchical management method and device |
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| CN202211157454.0A CN115567221A (en) | 2022-09-22 | 2022-09-22 | Certificate hierarchical management method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865971A (en) * | 2023-06-12 | 2023-10-10 | 淮南市公安局 | Internet of things terminal identity authentication method based on digital certificate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865971A (en) * | 2023-06-12 | 2023-10-10 | 淮南市公安局 | Internet of things terminal identity authentication method based on digital certificate |
| CN116865971B (en) * | 2023-06-12 | 2024-02-27 | 淮南市公安局 | Internet of things terminal identity authentication method based on digital certificate |
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