CN108768657A - A kind of digital certificate based on block platform chain issues system and method - Google Patents
A kind of digital certificate based on block platform chain issues system and method Download PDFInfo
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- CN108768657A CN108768657A CN201810343448.1A CN201810343448A CN108768657A CN 108768657 A CN108768657 A CN 108768657A CN 201810343448 A CN201810343448 A CN 201810343448A CN 108768657 A CN108768657 A CN 108768657A
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- Prior art keywords
- certificate
- block chain
- request data
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- demander
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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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
Abstract
The invention belongs to digital certificate information security fields, it provides a kind of digital certificate based on block platform chain and issues system, the intelligent contract foretold machine server by the block chain of the system and be deployed on block chain, it realizes digital certificate and entirely signs and issues flow, and finally the relevant information for the certificate signed and issued is stored to block chain, so that subsequently corresponding operating can be carried out to corresponding certificate from block chain, the characteristics of decentralization to which block chain be utilized, record and the management to digital certificate are realized by the block platform chain of decentralization, improve the transparency that digital certificate entirely signs and issues flow, auditing possibility, anti- distorting property, and then the digital certificate solved currently centered on certification authority signs and issues the security risk caused by flow.
Description
Technical field
The invention belongs to digital certificate information security fields more particularly to a kind of digital certificate based on block platform chain to issue
Send out system and method.
Background technology
Safety during digital certificate is signed and issued is extremely important, and especially the transparency during certificate authority is evaluation
Certificate issuance whether safety an important indicator.Currently, the transparency of certificate authority is not fine, for the saturating of certificate authority
Bright sex chromosome mosaicism, what application was relatively advanced is the Certificate Transparency projects of Google currently on the market, this
Mesh is to promote the safety that digital certificate is issued by realizing the transparency of certificate issuance.But the project is asked there are following
Topic：
The transparency of certificate issuance is to record issued certificate by the server of centralization to realize, the transparency is only real
The audit to issued certificate may be implemented in the transparency for having showed issued certificate, solves the mistake for being not easy to find to have signed and issued
, forge digital certificate problem.Simultaneously as there is no the whole flow process realization transparency in digital certificate, can not prevent
There is digital certificate signing and issuing mistake, forging, therefore, which is still easy to cause safety problem.
In addition, the project issues the server of digital certificate that center active reporting is signed and issued to centralization by digital certificate
It keeps a record, the server of the centralization, which there may be safety problem, leads to misregister.Although passing through append-only
Mode record the digital certificate signed and issued, but it is still that can distort to record.
Invention content
The present invention provides a kind of digital certificates based on block platform chain to issue system and method, it is intended to solve existing
Flow centered on certification authority lacks entire digital certificate and signs and issues the transparency of flow, auditing possibility, causes to be easy
There is digital certificate signing and issuing mistake, forging, and is not easy asking for the digital certificate that is wrong, forging for finding to have signed and issued
Topic.
In order to solve the above technical problems, the present invention provides a kind of digital certificates based on block platform chain to issue system,
The system comprises intelligent contracts block chain prophesy machine server and be deployed on block chain：
The intelligence contract, for by it includes intelligent contract-defined interface receive certificate request data, and by the card
Book request data is sent to the block chain prophesy machine server；The certificate request data include demander identity information, need
The person's of asking public key and certification authority information；
The block chain foretells machine server, the web service interface for calling authentication mechanism, by the demander
Identity information is sent to the authentication mechanism and carries out authentication, and the authentication result that authentication mechanism is fed back
It is sent to the intelligent contract；
If the authentication result passes through for authentication, the block chain prophesy machine server is additionally operable to call card
The web service interface of book issuing organization, it will includes the certification authority information, the need to ask the certification authority
The digital certificate of the person's of asking identity information and demander public key is signed and issued；
The intelligence contract is additionally operable to distributed account book technology using block chain by the digital certificate signed and issued
Metadata is stored to block chain；Wherein, the metadata include certificate essential information, certificate status information, demander public key,
Certificate cryptographic Hash.
Further, the intelligent contract is additionally operable to receive certificate query request data by the intelligent contract-defined interface,
And respective certificate is searched from the block chain according to the certificate query request data, lookup result is connect by intelligent contract
Mouth is sent to issuer.Wherein, the certificate query request data include certificate serial number (for positioning digital certificate) and
Certificate cryptographic Hash (for determining that the digital certificate files content that needs are inquired is consistent).
Further, the intelligent contract, which is additionally operable to revoke the certificate signed and issued by the intelligent contract-defined interface reception, asks
Seek data, and according to it is described revoke the certificate request data signed and issued and find respective certificate from the block chain hung
Pin.Wherein, the certificate request data signed and issued of revoking include certificate serial number (for positioning digital certificate) and certificate
Sequence number signature (for confirm be certificate promoter initiate certificate revocation).
In order to solve the above technical problems, the present invention provides a kind of certification authentication method based on block chain, the method
Including：
Intelligent contract by it includes intelligent contract-defined interface receive certificate request data, and by the certificate request data
It is sent to the block chain prophesy machine server；The certificate request data include demander identity information, demander public key with
And certification authority information；
Block chain foretells the web service interface of machine server calls authentication mechanism, by the demander identity information
It is sent to the authentication mechanism and carries out authentication, and the authentication result that authentication mechanism is fed back is sent to institute
State intelligent contract；
If the authentication result passes through for authentication, the block chain foretells machine server calls certificate authority
The web service interface of mechanism, it will includes the certification authority information, the demander body to ask the certification authority
The digital certificate of part information and the demander public key is signed and issued；
The intelligence contract is using the distributed account book technology of block chain by the metadata for the digital certificate signed and issued
It stores to block chain；Wherein, the metadata includes certificate essential information, certificate status information, demander public key, certificate Kazakhstan
Uncommon value.
Further, the method further includes：The intelligence contract receives certificate query by the intelligent contract-defined interface
Request data, and respective certificate is searched from the block chain according to the certificate query request data, lookup result is passed through
Intelligent contract-defined interface is sent to issuer.Wherein, the certificate query request data includes certificate serial number and certificate Hash
Value.
Further, the method further includes：The intelligence contract is revoked by the intelligent contract-defined interface reception and has been signed
The certificate request data of hair, and according to the certificate request data signed and issued of revoking corresponding card is found from the block chain
Book is revoked.Wherein, described to revoke the label that the certificate request data signed and issued include certificate serial number and certificate serial number
Name.
Compared with prior art, the present invention advantageous effect is：
The present invention provides a kind of digital certificates based on block platform chain to issue system, and the block chain by the system is pre-
Speech machine server and the intelligent contract being deployed on block chain realize digital certificate and entirely sign and issue flow, and finally will
The relevant information for the certificate signed and issued is stored to block chain, corresponding can subsequently to be carried out to corresponding certificate from block chain
The characteristics of operation, decentralization to which block chain be utilized, is realized by the block platform chain of decentralization and is demonstrate,proved number
The record of book and management improve digital certificate and entirely sign and issue the transparency, auditing possibility, anti-distorting property of flow, and then solve
Currently the digital certificate centered on certification authority signs and issues the security risk caused by flow.
Description of the drawings
Fig. 1 is that a kind of digital certificate based on block platform chain that first embodiment of the invention provides issues system signal
Figure；
Fig. 2 is that issue system another for a kind of digital certificate based on block platform chain for providing of first embodiment of the invention
Schematic diagram；
Fig. 3 is a kind of digital certificate awarding method flow based on block platform chain that second embodiment of the invention provides
Figure；
Fig. 4 is digital certificate life cycle schematic diagram provided by the invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is as shown in Figs. 1-2, provided by the invention a kind of based on block platform chain as one embodiment of the present invention
Digital certificate issues system, which includes that block chain prophesy machine server 20 and the intelligent contract that is deployed on block chain
10, and include several intelligent contract-defined interfaces on intelligence and about 10, certificate request, certificate can be received by intelligent contract-defined interface
Status query request or certificate revocation request.
(1) when system receives certificate request, each unit concrete application is as follows in system：
Intelligence and about 10, for receiving certificate request data, and (in the present embodiment, certificate is asked by certificate request data
It includes demander identity information, demander public key and certification authority information etc. to seek data) it is sent to block chain prophesy machine
Server 20.
Block chain foretells machine server 20, the web service interface for calling authentication mechanism 30, by certificate request number
The demander identity information for including in is sent to authentication mechanism 30 and carries out authentication, and authentication mechanism 30 is anti-
The authentication result of feedback is sent to intelligence and about 10.Wherein, authentication mechanism 30 can be pair of the profession by mandate
The mechanism that identity information is authenticated, such as：Government organs, public security organ, higher educational institution etc..
If above-mentioned authentication result passes through for authentication, block chain prophesy machine server 20 is additionally operable to call certificate
The web service interface of issuing organization 40, request certification authority 40 will include certification authority information, demander identity
Digital certificate (the i.e. current certificates request data of information and demander public key (public key of the demander of this certificate is signed and issued in request)
Corresponding digital certificate) it is signed and issued.It, can be to having passed through identity after certification authority 40 receives the certificate request data
The certificate request of verification is signed and issued using private key.If above-mentioned authentication result fails for authentication, area can be passed through
Authentication status of fail information is fed back to requesting party by block chain prophesy machine server 20 and intelligent contract-defined interface.
Intelligence and about 10 is additionally operable to distributed account book technology using block chain by the metadata for the digital certificate signed and issued
It stores to block chain 50；Wherein, the metadata includes certificate essential information, certificate status information, demander public key, certificate
Cryptographic Hash.Certificate essential information includes certificate serial number, certificate storage address, certification authority information etc..(such as Fig. 2 at this time
It is shown), metadata is stored on block chain 50, and the original of digital certificate is stored under block chain 50 (such as IPFS, Yun Cun
Storage etc.).
(2) when system receives certificate retraction request, each unit concrete application is as follows in system：
Intelligence and about 10, for receiving certificate query request data by the intelligent contract-defined interface, and according to the card
Book inquiry request data search respective certificate from the block chain 50, and lookup result is sent to by intelligent contract-defined interface and is looked into
Inquiry side.In the present embodiment, certificate query request data includes that certificate serial number (for positioning digital certificate) and certificate are breathed out
Uncommon value (for determining that the digital certificate files content that needs are inquired is consistent).
It should be noted that the digital certificate (metadata) signed and issued stores when on block chain, it is that distribution is stored in area
On many block nodes on block chain 50, when being inquired, it then follows the principle inquired nearby, it will be on nearest node
Certificate information feeds back to issuer.It is anyone to certificate progress inquiry operation on block chain to inquire, without
As traditional web-query mode, it is necessary to which needing to authorize can inquire, and therefore, have the spy of common transparent based on block chain
Point, this system realization are inquired on block chain so that the inquiry operation of this system also has the transparency.
(3) when system receives certificate revocation request, each unit concrete application is as follows in system：
Intelligence and about 10, for revoking the certificate request data signed and issued, and root by the intelligent contract-defined interface reception
Revoked according to this certificate request data signed and issued found from block chain 50 respective certificate revoked (i.e. be in revoke shape
State, the certificate revoked do not use), and all nodes for including the certificate in state synchronized to the block chain 50 will be revoked
It is upper that (block chain is characterized in, it is only necessary to which a node generates a new block, new block will be broadcast to other sections
Point, each node preserve identical a data.As long as so containing certificate revocation in the block that a node generates
Data, the data will be synchronized to other nodes).It includes that (it is fixed to be used for for certificate serial number to revoke the certificate request data signed and issued
Bit digital certificate) and certificate serial number signature (for confirm be certificate promoter initiate certificate revocation).
As shown in Fig. 2, the detailed design figure of system is issued for a kind of digital certificate based on block platform chain, which show
The management framework of digital certificate whole life cycle (life cycle of digital certificate is as shown in Figure 4), passes through the distribution of block chain
Formula account book technology and the intelligence being deployed on block chain and about 10 realize the decentralization pipe of digital certificate life cycle
Reason, the calling interface provided by intelligence and about 10 (i.e. intelligent contract-defined interface) realize certificate request, certificate retraction
The periodization management operation of request and certificate revocation request.
In addition, existing certificate issuance method, for example, Google Certificate Transparency projects, simultaneously
It cannot solve the DoS-attack problem of certificate revocation inquiry.And method provided by the present invention on block chain by realizing the number
Word certificate life cycle management system so that the record of digital certificate is decentralization, anti-distorting and improve digital card
Book services the ability of anti-DoS attack.
In conclusion the system that first embodiment of the invention is provided, by realized on block chain decentralization,
Distributed digital certificate life cycle records, and realizes digital certificate and entirely signs and issues flow (i.e. digital certificate life cycle)
The transparency.Certificate not only alloing mistake, forging also is carried out audit from the source of generation signed and issued, is hindered by audit finding
The generation of only wrong, forgery certificate.Therefore the present embodiment on block chain by realizing digital certificate life cycle management
System so that the record of digital certificate is decentralization, anti-DoS attack distorting, anti-, has higher safety, thoroughly
Bright property, auditing possibility.
As second embodiment of the present invention, as shown in figure 3, a kind of certificate based on block chain provided by the invention is tested
Card method, this method include：
(1) when receiving certificate request, specific method includes：
Step S101：Intelligent contract receives certificate request data, and by certificate request data (in the present embodiment, certificate
Request data includes demander identity information, demander public key and certification authority information etc.) it is sent to block chain prophesy
Machine server.
Step S102：Block chain foretells the web service interface of machine server calls authentication mechanism, by certificate request number
The demander identity information for including in is sent to authentication mechanism and carries out authentication, and authentication mechanism is fed back
Authentication result is sent to intelligent contract.Wherein, authentication mechanism can be the profession by mandate to identity information
The mechanism being authenticated, such as：Government organs, public security organ, higher educational institution etc..
Step S103：If above-mentioned authentication result passes through for authentication, block chain prophesy machine server is additionally operable to
Call the web service interface of certification authority, request certification authority that will include certification authority information and need
The digital certificate (digital certificate i.e. corresponding to current certificates request data) of the person's of asking identity information is signed and issued.Certificate authority machine
After structure receives the certificate request data, the certificate request by authentication can be signed and issued using private key；If above-mentioned
Authentication result fails for authentication, then can foretell machine server and intelligent contract-defined interface by identity by block chain
Authentication failed status information feedback is to requesting party.
Step S104：Intelligent contract is using the distributed account book technology of block chain by the metadata for the digital certificate signed and issued
It stores to block chain.Wherein, the metadata includes certificate essential information, certificate status information, demander public key, certificate Kazakhstan
Uncommon value.Certificate essential information includes certificate serial number, certificate storage address, certification authority information etc..At this time (such as Fig. 2 institutes
Show), metadata is stored on block chain, and the original of digital certificate is stored under block chain (such as IPFS, cloud storage etc.).
(2) when receiving certificate retraction request, specific method includes：
Step S105：Intelligent contract receives certificate query request data by the intelligent contract-defined interface, and according to described
Certificate query request data searches respective certificate from the block chain, and lookup result is sent to by intelligent contract-defined interface and is looked into
Inquiry side.In the present embodiment, certificate query request data includes that certificate serial number (for positioning digital certificate) and certificate are breathed out
Uncommon value (for determining that digital certificate, file content that needs are inquired are consistent).
(3) when receiving certificate revocation request, specific method includes：
Step S106：Intelligent contract revokes the certificate request data signed and issued by the intelligent contract-defined interface reception, and
Revoked according to this certificate request data signed and issued found from block chain respective certificate revoked (i.e. be in revoke shape
State, the certificate revoked do not use), and all nodes for including the certificate in state synchronized to the block chain will be revoked
On.Revoke the label that the certificate request data signed and issued include certificate serial number (for positioning digital certificate) and certificate serial number
Name (for confirms be certificate promoter initiation certificate revocation).
In conclusion the method that second embodiment of the invention is provided, is realized by the block platform chain of decentralization
Record to digital certificate and management improve digital certificate and entirely sign and issue the transparency of flow, auditing possibility, anti-distort
Property, and then the digital certificate solved currently centered on certification authority signs and issues the security risk caused by flow, and carry
The ability of the resistance service attack (DoS) of digital certificate service is risen.
The foregoing is merely illustrative of the preferred embodiments of the present invention, all in spirit of the invention not to limit invention
With within principle made by all any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of digital certificate based on block platform chain issues system, which is characterized in that the system comprises block chain prophesies
Machine server and the intelligent contract being deployed on block chain：
The intelligence contract, for by it includes intelligent contract-defined interface receive certificate request data, and the certificate is asked
Data are asked to be sent to the block chain prophesy machine server；The certificate request data include demander identity information, demander
Public key and certification authority information；
The block chain foretells machine server, the web service interface for calling authentication mechanism, by the demander identity
Information is sent to the authentication mechanism and carries out authentication, and the authentication result that authentication mechanism is fed back is sent
To the intelligent contract；
If the authentication result passes through for authentication, the block chain prophesy machine server is additionally operable to that certificate is called to issue
The web service interface for sending out mechanism, it will includes the certification authority information, the demander to ask the certification authority
The digital certificate of identity information and the demander public key is signed and issued；
The intelligence contract is additionally operable to distributed account book technology using block chain by the first number for the digital certificate signed and issued
According to storing to block chain；Wherein, the metadata includes certificate essential information, certificate status information, demander public key, certificate
Cryptographic Hash.
2. the system as claimed in claim 1, it is characterised in that：
The intelligence contract is additionally operable to receive certificate query request data by the intelligent contract-defined interface, and according to the card
Book inquiry request data search respective certificate from the block chain, and lookup result is sent to inquiry by intelligent contract-defined interface
Side.
3. system as claimed in claim 2, which is characterized in that the certificate query request data include certificate serial number and
Certificate cryptographic Hash.
4. the system as claimed in claim 1, it is characterised in that：
The intelligence contract is additionally operable to revoke the certificate request data signed and issued, and root by the intelligent contract-defined interface reception
According to it is described revoke the certificate request data signed and issued and find respective certificate from the block chain revoked.
5. system as claimed in claim 4, which is characterized in that the certificate request data signed and issued of revoking include certificate sequence
The signature of row number and certificate serial number.
6. a kind of certification authentication method based on block chain, which is characterized in that the method includes：
Intelligent contract by it includes intelligent contract-defined interface receive certificate request data, and by the certificate request data send
Machine server is foretold to the block chain；The certificate request data include demander identity information, demander public key and card
Book issuing organization information；
Block chain foretells the web service interface of machine server calls authentication mechanism, and the demander identity information is sent
Authentication is carried out to the authentication mechanism, and the authentication result that authentication mechanism is fed back is sent to the intelligence
It can contract；
If the authentication result passes through for authentication, the block chain foretells machine server calls certification authority
Web service interface, ask the certification authority will include the certification authority information, the demander identity believe
The digital certificate of breath and the demander public key is signed and issued；
The intelligence contract is stored the metadata for the digital certificate signed and issued using the distributed account book technology of block chain
To block chain；Wherein, the metadata includes certificate essential information, certificate status information, demander public key, certificate Hash
Value.
7. method as claimed in claim 6, which is characterized in that the method further includes：
The intelligence contract receives certificate query request data by the intelligent contract-defined interface, and is asked according to the certificate query
It asks data to search respective certificate from the block chain, lookup result is sent to issuer by intelligent contract-defined interface.
8. the method for claim 7, which is characterized in that the certificate query request data include certificate serial number and
Certificate cryptographic Hash.
9. method as claimed in claim 6, which is characterized in that the method further includes：
The intelligence contract revokes the certificate request data signed and issued by the intelligent contract-defined interface reception, and is hung according to described
The certificate request data that pin has been signed and issued find respective certificate from the block chain and are revoked.
10. method as claimed in claim 9, which is characterized in that the certificate request data signed and issued of revoking include certificate
The signature of sequence number and certificate serial number.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343448.1A CN108768657A (en) | 2018-04-17 | 2018-04-17 | A kind of digital certificate based on block platform chain issues system and method |
| PCT/CN2019/082901 WO2019201246A1 (en) | 2018-04-17 | 2019-04-16 | Block chain platform based digital certificate issuing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343448.1A CN108768657A (en) | 2018-04-17 | 2018-04-17 | A kind of digital certificate based on block platform chain issues system and method |
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| CN108768657A true CN108768657A (en) | 2018-11-06 |
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| CN201810343448.1A Pending CN108768657A (en) | 2018-04-17 | 2018-04-17 | A kind of digital certificate based on block platform chain issues system and method |
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| WO (1) | WO2019201246A1 (en) |
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| CN109493020A (en) * | 2018-11-08 | 2019-03-19 | 众安信息技术服务有限公司 | Method for secure transactions and device based on block chain |
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| CN109886043A (en) * | 2019-02-11 | 2019-06-14 | 上海点融信息科技有限责任公司 | Method and apparatus for generating the organization credentials of block chain participant |
| CN110135992A (en) * | 2019-05-14 | 2019-08-16 | 北京智签科技有限公司 | The acquisition methods and acquisition device of block chain network Fabric-CA digital certificate |
| WO2019201246A1 (en) * | 2018-04-17 | 2019-10-24 | 深圳技术大学 | Block chain platform based digital certificate issuing system and method |
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| CN113643006A (en) * | 2021-10-13 | 2021-11-12 | 江苏荣泽信息科技股份有限公司 | Online electronic license obtaining system and method based on block chain |
| CN113722696A (en) * | 2021-07-28 | 2021-11-30 | 微易签(杭州)科技有限公司 | Method, system, apparatus and medium for issuing electronic signature certificate based on block chain |
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