CN116055066A - CA system based on block chain and predictor - Google Patents
CA system based on block chain and predictor Download PDFInfo
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- CN116055066A CN116055066A CN202310335397.9A CN202310335397A CN116055066A CN 116055066 A CN116055066 A CN 116055066A CN 202310335397 A CN202310335397 A CN 202310335397A CN 116055066 A CN116055066 A CN 116055066A
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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
- H04L9/3265—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 chains, trees or paths; Hierarchical trust model
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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]
Abstract
The invention discloses a CA system based on a block chain and a predictor, which comprises: the system comprises a user end, a verification end, a signing end, a prophetic machine and a blockchain, wherein the user end, the verification end and the signing end are all connected with the prophetic machine, the prophetic machine is connected with the blockchain, and a plurality of consensus nodes are arranged on the blockchain; the client submits application information to the propranker, the propranker generates an information list, the issuing end sends a query request to the propranker, the propranker returns the information list to the issuing end, the issuing end processes the certificate according to the request in the information list and sends a processing record to the propranker, and the propranker places the processing record into a blockchain; the user terminal submits verification information to the verification terminal, and the verification terminal verifies the information to be verified through the prophetic machine and returns a verification result.
Description
Technical Field
The invention relates to the technical field of certificate application authentication, in particular to a CA system based on a block chain and a predictor.
Background
Currently, X.509 standard digital certificates based on public key cryptography are widely used for information security. According to the principle of public key cryptography, the CA and the user respectively generate own public and private key pairs, and the CA executes digital signature operation on the digital certificate of the user by utilizing own private keys. The X.509 digital certificate includes the user identity, public key, other digital certificate auxiliary information, and the CA's digital signature. The user of the digital certificate is pre-installed with the public key of the CA. When the digital certificate user receives the X.509 digital certificate of the user, the validity of the digital signature is verified by using the CA public key, and after the verification is passed, the public key of the user can be obtained, and then various calculation operations (such as public key encryption, digital signature verification and the like) of public key cryptography are performed on the basis, so that the information security function is realized. In the X.509 standard digital certificate, the digital signature of the CA ensures that the user's digital certificate is derived from a trusted CA and cannot be tampered maliciously in the transmission process; any minor modification to the digital certificate will result in the CA digital signature verification not passing.
However, the existing CA issuing system is used in the decentralization system after issuing in a centralized manner, and cannot implement the application, issuing and revocation flows of certificates in the decentralization system.
Therefore, how to provide a blockchain and predictor-based CA system is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a blockchain and predictor-based CA system; public and private key information of the root certificate is placed in an issuing authority through a alliance chain, and certificate verification is completed by a propulsor. And the user submits certificate application information and certificate revocation application information to the prophetic machine, and the issuing mechanism takes out the certificate to be issued from the prophetic machine, and issues and revokes the certificate by utilizing the private key of the root certificate. Storing the issue record and the revocation record in a prophetic machine; the certificate holder sends the electronic certificate to the certification party, the certification party carries out local verification on the certificate, then inquires the validity of the certificate through the block chain node, and finally completes verification; the application, issuing and revocation processes of the certificate are realized in the decentralization system.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a blockchain and predictor-based CA system, comprising: the system comprises a user end, a verification end, a signing end, a prophetic machine and a blockchain, wherein the user end, the verification end and the signing end are all connected with the prophetic machine, the prophetic machine is connected with the blockchain, and a plurality of consensus nodes are arranged on the blockchain;
the client submits application information to the propranker, the propranker generates an information list, the issuing end sends a query request to the propranker, the propranker returns the information list to the issuing end, the issuing end processes the certificate according to the request in the information list and sends a processing record to the propranker, and the propranker places the processing record into a blockchain;
the user terminal submits verification information to the verification terminal, and the verification terminal verifies the information to be verified through the prophetic machine and returns a verification result.
Preferably, the application information includes a certificate application and a certificate revocation application.
Preferably, the certificate application process specifically includes:
the client initiates a certificate request, provides certificate application content, and sends the current content to the prophetic machine, and the prophetic machine generates a certificate to-be-issued list;
the issuing end issues a certificate to be issued inquiry to the pre-speaker, the pre-speaker checks a list of certificates to be issued, returns information to be issued by the issuing end, issues the certificates based on a private key, and sends a certificate issuing record to the pre-speaker;
and the blockchain acquires a certificate application record and a record to be issued from the prophetic machine, and puts the record and the record into a transaction pool to be packaged, and a co-node in the blockchain broadcasts transaction information to other organization nodes, so that the co-node achieves co-identification.
Preferably, the certificate revocation process specifically includes:
the client initiates a certificate revocation request, and the predictor stores a certificate revocation application record;
the issuing end initiates a certificate inquiry to be revoked to the prophetic machine, receives information to be revoked, and revokes the certificate through a private key, and the prophetic machine stores a certificate revocation record;
and the consensus node of the blockchain acquires the certificate revocation application record and the certificate revocation record, and puts the certificate revocation record and the certificate revocation record into a transaction pool to be packaged, and broadcasts transaction information to other organization nodes, so that the consensus is achieved by the consensus node.
Preferably, the certificate verification process specifically includes:
the user end decrypts the held certificate and submits the certificate to the verification end, the verification end verifies the authenticity of the current certificate through a digital signature, verifies whether the state of the digital certificate is normal or not and whether the digital certificate is revoked or not to a predictor, acquires an existing certificate list after receiving a verification application of the verification end, verifies the certificate revoked list, obtains a verification result, and returns the result to the verification end.
According to the technical scheme, compared with the prior art, the CA system based on the block chain and the predictor is provided; public and private key information of the root certificate is placed in an issuing authority through a alliance chain, and certificate verification is completed by a propulsor. And the user submits certificate application information and certificate revocation application information to the prophetic machine, and the issuing mechanism takes out the certificate to be issued from the prophetic machine, and issues and revokes the certificate by utilizing the private key of the root certificate. Storing the issue record and the revocation record in a prophetic machine; the certificate holder sends the electronic certificate to the certification party, the certification party carries out local verification on the certificate, then inquires the validity of the certificate through the block chain node, and finally completes verification; the application, issuing and revocation processes of the certificate are realized in the decentralization system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an overall system architecture according to the present invention.
Fig. 2 is a schematic diagram of a certificate application flow structure provided by the present invention.
Fig. 3 is a schematic diagram of a certificate issuing flow provided by the present invention.
Fig. 4 is a schematic diagram of a flow of application for revoked certificates according to the present invention.
Fig. 5 is a schematic diagram of a certificate revocation flow structure provided by the present invention.
Fig. 6 is a schematic diagram of a certificate verification flow structure provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1: the embodiment of the invention discloses a CA system based on a block chain and a predictor, which comprises the following components: the system comprises a user terminal, a verification terminal, a signing terminal, a prophetic machine and a blockchain, wherein the user terminal, the verification terminal and the signing terminal are all connected with the prophetic machine, the prophetic machine is connected with the blockchain, and a plurality of consensus nodes are arranged on the blockchain;
the method comprises the steps that a user side submits application information to a propranker, the propranker generates an information list, an issuing side sends a query request to the propranker, the propranker returns the information list to the issuing side, the issuing side processes a certificate according to the request in the information list and sends a processing record to the propranker, and the propranker places the processing record into a block chain;
the user side submits the verification information to the verification side, the verification side verifies the information to be verified through the predictor, and a verification result is returned.
In order to further optimize the technical scheme, the application information comprises a certificate application and a certificate revocation application.
In order to further optimize the technical scheme, the certificate application process specifically comprises the following steps:
the client initiates a certificate request, provides certificate application content, and sends the current content to the propulsor, and the propulsor generates a list to be signed by the certificate;
the issuing end sends a certificate inquiry to be issued to the pre-speaker, the pre-speaker checks a list of certificates to be issued, returns information to be issued by the issuing end, issues the certificates based on a private key, and sends a certificate issuing record to the pre-speaker;
the blockchain acquires a certificate application record and a record to be issued from the prophetic machine, the record is put into a transaction pool to be packaged, and a consensus node in the blockchain broadcasts transaction information to other organization nodes to achieve consensus.
In order to further optimize the technical scheme, the certificate revocation process specifically comprises:
the user initiates a certificate revocation request, and the predictor stores a certificate revocation application record;
the signing and issuing end initiates a certificate inquiry to be revoked to the prophetic machine, receives the information to be revoked, revokes the certificate through the private key, and the prophetic machine stores the certificate revocation record;
the consensus node of the blockchain acquires the certificate revocation application record and the certificate revocation record, and puts the certificate revocation record and the certificate revocation record into a transaction pool to be packaged, and the consensus node broadcasts transaction information to other organization nodes, so that the consensus is achieved by the consensus node.
In order to further optimize the technical scheme, the certificate verification process specifically comprises the following steps:
the user end decrypts the held certificate and submits the certificate to the verification end, the verification end verifies the authenticity of the current certificate through the digital signature, verifies whether the state of the digital certificate is normal or not and whether the digital certificate is revoked or not to the predictor, acquires an existing certificate list after the predictor receives a verification application of the verification end, verifies the certificate revoked list, obtains a verification result, and returns the result to the verification end.
Advantages of the present application:
the application uses a predictor to replace the role of a registration center RA in a centralized CA system structure; the method comprises the steps that a common node is used for replacing a CA server in a centralized CA system structure, the whole life cycle of a certificate is stored in a predictor, and then the certificate is packaged by the common node and enters a blockchain to achieve common consensus; the real-time record of the state of the certificate and the verification on the chain are solved.
(1) The certificate application process is as shown in fig. 2:
s1, a user initiates a certificate application, fills in materials required by the certificate application and sends the materials to a propranker.
S2, the consensus node takes out the certificate application record, puts the certificate application record into a transaction pool to be packaged, broadcasts transaction information to other organization nodes, and achieves consensus by the consensus node to obtain a block.
(2) The certificate issuing process is as shown in fig. 3:
s1, an issuing mechanism sends out a certificate inquiry to be issued to a propulsor, the propulsor checks a list of certificates to be issued and returns the list of certificates to be issued to the issuing mechanism, the issuing mechanism issues the certificates by using a private key of the issuing mechanism, and meanwhile, a certificate issuing record is sent to the propulsor.
And S2, taking out the record to be signed and putting the record into a transaction pool to be packaged by the consensus node. The consensus node broadcasts the transaction information to other organization nodes, and the consensus node achieves consensus and outputs blocks.
(3) The user revoke certificate procedure is as shown in fig. 4:
s1, a user initiates a certificate revocation application, and a prophetic machine stores a user revocation certificate application record.
And S2, the consensus node takes out the user revocation certificate record and puts the user revocation certificate record into a transaction pool to be packaged. The consensus node broadcasts the transaction information to other organization nodes, and the consensus node achieves consensus and outputs blocks.
(4) The issuing authority revokes the certificate process is shown in fig. 5:
s1, an issuing mechanism initiates a certificate to be revoked inquiry to a prophetic machine, receives information to be revoked, and utilizes a private key of the issuing mechanism to revoke the certificate, and the prophetic machine stores certificate revocation records.
And S2, the consensus node takes out the certificate revocation record and puts the certificate revocation record into a transaction pool to be packaged. The consensus node broadcasts the transaction information to other organization nodes, and the consensus node achieves consensus and outputs blocks.
(5) The certificate verification process is shown in fig. 6;
s1, decrypting the held certificate by the user and submitting the decrypted certificate to a verification party for verification.
And S2, the verifier verifies the authenticity of the certificate by utilizing the digital signature. Secondly, the verifier needs to verify to the predictor whether the state of the digital certificate is normal or not and whether the digital certificate is revoked or not.
S3, the predictor receives a certificate verification application of the verifier, acquires an existing certificate list, verifies the certificate revoked list CRL, obtains a verification result, and returns a certificate status result to the verifier.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A blockchain and predictor-based CA system, comprising: the system comprises a user end, a verification end, a signing end, a prophetic machine and a blockchain, wherein the user end, the verification end and the signing end are all connected with the prophetic machine, the prophetic machine is connected with the blockchain, and a plurality of consensus nodes are arranged on the blockchain;
the client submits application information to the propranker, the propranker generates an information list, the issuing end sends a query request to the propranker, the propranker returns the information list to the issuing end, the issuing end processes the certificate according to the request in the information list and sends a processing record to the propranker, and the propranker places the processing record into a blockchain;
the user terminal submits verification information to the verification terminal, and the verification terminal verifies the information to be verified through the prophetic machine and returns a verification result.
2. The CA system based on blockchain and propulsor of claim 1, wherein the application information includes a certificate application and a certificate revocation application.
3. The CA system based on blockchain and propulsor according to claim 2, wherein the certificate application process specifically includes:
the client initiates a certificate request, provides certificate application content, and sends the current content to the prophetic machine, and the prophetic machine generates a certificate to-be-issued list;
the issuing end issues a certificate to be issued inquiry to the pre-speaker, the pre-speaker checks a list of certificates to be issued, returns information to be issued by the issuing end, issues the certificates based on a private key, and sends a certificate issuing record to the pre-speaker;
and the blockchain acquires a certificate application record and a record to be issued from the prophetic machine, and puts the record and the record into a transaction pool to be packaged, and a co-node in the blockchain broadcasts transaction information to other organization nodes, so that the co-node achieves co-identification.
4. The CA system based on blockchain and predictor as recited in claim 2, wherein the certificate revocation process specifically comprises:
the client initiates a certificate revocation request, and the predictor stores a certificate revocation application record;
the issuing end initiates a certificate inquiry to be revoked to the prophetic machine, receives information to be revoked, and revokes the certificate through a private key, and the prophetic machine stores a certificate revocation record;
and the consensus node of the blockchain acquires the certificate revocation application record and the certificate revocation record, and puts the certificate revocation record and the certificate revocation record into a transaction pool to be packaged, and broadcasts transaction information to other organization nodes, so that the consensus is achieved by the consensus node.
5. The CA system based on blockchain and propulsor according to claim 1, wherein the certificate verification process specifically includes:
the user end decrypts the held certificate and submits the certificate to the verification end, the verification end verifies the authenticity of the current certificate through a digital signature, and verifies whether the state of the certificate is normal or not and whether the certificate is revoked or not to the predictor, the predictor obtains an existing certificate list after receiving a verification application of the verification end, verifies the certificate revoked list, obtains a verification result, and returns the result to the verification end.
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| US20190036712A1 (en) * | 2017-07-26 | 2019-01-31 | Alibaba Group Holding Limited | Digital certificate management method, apparatus, and system |
| WO2021184973A1 (en) * | 2020-03-18 | 2021-09-23 | 支付宝(杭州)信息技术有限公司 | External data accessing method and device |
| CN114465817A (en) * | 2022-03-22 | 2022-05-10 | 暨南大学 | Digital certificate system and method based on TEE (text exchange engine) prediction machine cluster and block chain |
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- 2023-03-31 CN CN202310335397.9A patent/CN116055066A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190036712A1 (en) * | 2017-07-26 | 2019-01-31 | Alibaba Group Holding Limited | Digital certificate management method, apparatus, and system |
| CN108768657A (en) * | 2018-04-17 | 2018-11-06 | 深圳技术大学（筹） | A kind of digital certificate based on block platform chain issues system and method |
| WO2021184973A1 (en) * | 2020-03-18 | 2021-09-23 | 支付宝(杭州)信息技术有限公司 | External data accessing method and device |
| CN114465817A (en) * | 2022-03-22 | 2022-05-10 | 暨南大学 | Digital certificate system and method based on TEE (text exchange engine) prediction machine cluster and block chain |
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Application publication date: 20230502 |