CN108833440A - A kind of Network Security Audit System and network security auditing method based on block chain - Google Patents
A kind of Network Security Audit System and network security auditing method based on block chain Download PDFInfo
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- CN108833440A CN108833440A CN201810807355.XA CN201810807355A CN108833440A CN 108833440 A CN108833440 A CN 108833440A CN 201810807355 A CN201810807355 A CN 201810807355A CN 108833440 A CN108833440 A CN 108833440A
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- server
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- audit
- network security
- key
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Classifications
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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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
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
-
- 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
- H04L63/12—Applying verification of the received information
-
- 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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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention relates to a kind of Network Security Audit System and network security auditing method based on block chain, audit server generates server to Key Management server application public signature key to Key Management server application signature public private key pair and key, block chain block, and audit server acquisition is to Audit data and encrypts generationC 1 , generation is re-encrypted to encryption keyC 2 , with private key pairC 1 WithC 2 Digital signature generatesσ；Audit server generates server to block and sendsC 1 、C 2 WithσAnd by block generate server with public key verifications it is effective after will to Audit data be placed in data buffer zone, block formation condition satisfaction then generate new block and broadcast, show end can to block generate server request check Audit data.The present invention uses block chain technology, and block chain is added in auditing system, and Audit data can not be distorted, and Information Security is promoted, and guarantees that Audit data only has authorized user's access to Audit data encryption in block chain, protects Audit data confidentiality.
Description
Technical field
The present invention relates to the technical field of secret communication, in particular to one kind adds block chain portion in traditional audit system
Part is to guarantee the Network Security Audit System and network security auditing method based on block chain that can not be distorted of Audit data.
Background technique
Computer network security audit is to utilize record, system activity and User Activity etc. according to certain security strategy
Information checks, environment and the activity of examination and checked operation event, to find system vulnerability, intrusion behavior or improve system
The process of performance, and examine assessment system security risk and take the process of corresponding measure.Network security audit remembers system
Record and behavior carry out independent examination and estimation, play deterrence and warning to potential attacker that may be present, test macro
Control situation simultaneously adjusts in time, and guarantee is harmonious with security strategy and operating instruction, makes and commenting to the destructive insident occurred
The foundation for estimating and providing effective disaster recovery and calling to account carries out the change in system control, security strategy and regulation
Evaluation and feedback assist system manager to find network system invasion or potential system in time to revise decisions and arrangements
Loophole and hidden danger.
However, system manager being capable of additions and deletions Audit data, the Audit data of acquisition and reading in traditional auditing system
Audit data out haves the defects that cannot ensure consistency, that is to say network security audit with the presence of may greatly lose it
Meaning, can not Logistics networks safety.
Summary of the invention
Present invention solves the technical problem that be, in the prior art, system manager can additions and deletions Audit data, acquisition examines
It counts and haves the defects that cannot ensure consistency with the Audit data read, for this purpose, the present invention provides a kind of bases of optimization
In the Network Security Audit System and network security auditing method of block chain.
The technical scheme adopted by the invention is that a kind of network security auditing method based on block chain, the method packet
Include following steps：
Step 1：Data initialization, any audit server to Key Management server application sign public private key pair（pka,ska）
And keypkb, block chain block generates server to Key Management server application public signature keypka；
Step 2：Audit server acquires original Audit datamAnd utilize encryption keykEncryption generatesC 1 , utilizepkbIt is rightkAdd
It is close, it generatesC 2 , utilizeskaIt is rightC 1 WithC 2 It is digitally signed, generatesσ；Audit server generates server to block and sendsC 1 、C 2
Withσ；
Step 3：Block generates server by utilizingpkaVerifyingC 1 、C 2 WithσValidity, if in vain, abandonC 1 、C 2 Withσ, walked
Rapid 5, it otherwise, willC 1 、C 2 WithσIt is placed in data buffer zone, judges whether block formation condition meets, it is no if then carrying out in next step
Then, return step 2；
Step 4：Block generates server and generates new block, and broadcasts, and new block includes original Audit datam；
Step 5：Show that end generates server request to block and checks Audit data, when block generates the area of not auditing in server
When block number is greater than 0, if decryption passes through, show that end obtains original Audit datam, otherwise, carry out in next step；
Step 6：Terminate.
Preferably, in the step 1, the signature public private key pair of any audit server（pka,ska）And keypkbIt is only
One.
Preferably, in the step 1, show end to Key Management server application decrypted private keyskb。
Preferably, in the step 5, in the step 5, show that end generates server request to block and checks audit number
According to, when block generates the block counts of not auditing in server greater than 0, acquisitionC 1 WithC 2 , withskbIt is rightC 2 Decryption, obtains encrypting close
Keyk, withkIt is rightC 1 Decryption, obtains original Audit datam。
Preferably, the encryption keykFor symmetric key.
A kind of Network Security Audit System using the network security auditing method based on block chain, including be used for
The audit server of Audit data and the displaying end for showing Audit data are acquired, the Network Security Audit System also wraps
It includes：
One is added in block chain for verifying the validity of the collected Audit data of the audit server and being packaged in due course
Block generate server；
One for key and signature public private key pair needed for managing and distribute audit server, block generation server and showing end
Key Management server；
The audit server generates server with Key Management server and block respectively and is equipped with；The displaying end difference
Server is generated with Key Management server and block to be equipped with；The block generate server also with Key Management server
It is equipped with.
It preferably, include that one or more blocks generate server in the Network Security Audit System.
Preferably, when including that multiple blocks generate server in Network Security Audit System, multiple blocks generate service
There is common recognition mechanism, the common recognition mechanism and either block generate server cooperation between device.
Preferably, it is computer group that the block, which generates server,.
The present invention provides the Network Security Audit System and network security auditing method based on block chain of a kind of optimization,
Server is generated to close to sign public private key pair and key, block chain block of Key Management server application by audit server
Key management server application public signature key, audit server acquire original Audit data and utilize encryption keys, generateC 1 ,
It is re-encrypted, is generated using key pair encryption keyC 2 , utilize private key pairC 1 WithC 2 It is digitally signed, generatesσ；Audit server
Server is generated to block to sendC 1 、C 2 WithσAnd server by utilizing public key verifications validity is generated by block, it will if effectivelyC 1 、C 2 WithσIt is placed in data buffer zone, then generates new block when block formation condition meets, and broadcast, when block generates server
In block counts of not auditing greater than 0 when, show that end can generate server request to block and check Audit data.The present invention uses area
Block chain technology adds block chain part, to guarantee can not distorting for Audit data, the safety of data in traditional audit system
Property be increased dramatically, and by ensure that block chain as distributed account book mode energy the Audit data encryption in block chain
It works normally, Audit data only has authorized user's access, protects the confidentiality of Audit data.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, but protection scope of the present invention is not limited to
This.
The present invention relates to a kind of network security auditing methods based on block chain, and block chain is added in traditional audit system
Component, to guarantee can not distorting for Audit data.
It the described method comprises the following steps.
Step 1：Data initialization, any audit server to Key Management server application sign public private key pair（pka, ska）And keypkb, block chain block generates server to Key Management server application public signature keypka。
In the step 1, the signature public private key pair of any audit server（pka,ska）And keypkbIt is unique.
In the step 1, show end to Key Management server application decrypted private keyskb。
In the present invention, public key is part disclosed in public private key pair, and private key is then private part, and public key and private key are
The key pair obtained by algorithm under normal circumstances encrypts data with public key, is decrypted with private key, with private key pair
Data are signed, and are verified with public key.
In the present invention, it is related to distributed account book, this is a kind of shared between network members, duplication and synchronous data
Library, for recording the transaction between network participants, such as the exchange of assets or data.
Step 2：Audit server acquires original Audit datamAnd utilize encryption keykEncryption generatesC 1 , utilizepkbIt is rightkEncryption generatesC 2 , utilizeskaIt is rightC 1 WithC 2 It is digitally signed, generatesσ；Audit server generates server to block and sendsC 1 、C 2 Withσ。
In the present invention, block generates the block that server is block chain and generates server.
In the present invention, encryption keykFor according to demand, interim random generation.
Step 3：Block generates server by utilizingpkaVerifyingC 1 、C 2 WithσValidity, if in vain, abandonC 1 、C 2 Withσ, into
Row step 5 otherwise willC 1 、C 2 WithσIt is placed in data buffer zone, judges whether block formation condition meets, if then carrying out next
Step, otherwise, return step 2.
In the present invention,pkaVerifyingC 1 、C 2 WithσValidity be mainly used for verifying signature validity.
In the present invention, block formation condition be it is dynamic, can be according to those skilled in the art to actual conditions instantly
Carry out control.
Step 4：Step 4：Block generates server and generates new block, and broadcasts, and new block includes original audit number
According tom。
Step 5：Show that end generates server request to block and checks Audit data, when unexamined in block generation server
When counting block counts greater than 0, if decryption passes through, show that end obtains original Audit datam, otherwise, carry out in next step.
In the step 5, show that end generates server request to block and checks Audit data, when block generates in server
Block counts of not auditing greater than 0 when, obtainC 1 WithC 2 , withskbIt is rightC 2 Decryption, obtains encryption keyk, withkIt is rightC 1 Decryption, obtains
Original Audit datam。
Step 6：Terminate.
In the present invention, using block chain technology, to Audit datamEncryption, and the key of encryption is re-encrypted, last
It needs gradually to decrypt when obtaining data, has ensured Audit datamConfidentiality and safety.
The encryption keykFor symmetric key.
The invention further relates to a kind of network security audits using the network security auditing method based on block chain
System, including the audit server for acquiring Audit data and the displaying end for showing Audit data, the network security
Auditing system further includes：
One is added in block chain for verifying the validity of the collected Audit data of the audit server and being packaged in due course
Block generate server；
One for key and signature public private key pair needed for managing and distribute audit server, block generation server and showing end
Key Management server；
The audit server generates server with Key Management server and block respectively and is equipped with；The displaying end difference
Server is generated with Key Management server and block to be equipped with；The block generate server also with Key Management server
It is equipped with.
In the present invention, audit server is sent to block and generates server after data encryption is signed.
In the present invention, show end from block generate server block in extract data, be decrypted finally obtain it is original
Audit data is simultaneously shown.
It include that one or more blocks generate server in the Network Security Audit System.
When including that multiple blocks generate server in Network Security Audit System, multiple blocks have between generating server
Common recognition mechanism, the common recognition mechanism and either block generate server cooperation.
In the present invention, common recognition mechanism is the mechanism that block chain node reaches that the whole network is unanimously known together with regard to block information, Ke Yibao
Demonstrate,prove newest block be accurately added to block chain, node storage block chain information unanimously not bifurcated in addition can resist malice attack
It hits.
It is computer group that the block, which generates server,.
The present invention passes through audit server to Key Management server application signature public private key pair and key, block chain block
Server is generated to Key Management server application public signature key, audit server acquires original Audit data and utilizes encryption close
Key encryption, generatesC 1 , re-encrypted, generated using key pair encryption keyC 2 , utilize private key pairC 1 WithC 2 It is digitally signed, it is raw
Atσ；Audit server generates server to block and sendsC 1 、C 2 WithσAnd it is effective by block generation server by utilizing public key verifications
Property, it will if effectivelyC 1 、C 2 WithσIt is placed in data buffer zone, then generates new block when block formation condition meets, and broadcast, when
When block generates the block counts of not auditing in server greater than 0, show that end can generate server request to block and check audit number
According to.The present invention uses block chain technology, and block chain part is added in traditional audit system, so that guarantee Audit data can not
It distorts, the safety of data is increased dramatically, and by ensure that block chain conduct to the Audit data encryption in block chain
Distributed account book mode can work normally, and Audit data only has authorized user's access, protect the confidentiality of Audit data.
Claims (9)
1. a kind of network security auditing method based on block chain, it is characterised in that：It the described method comprises the following steps：
Step 1：Data initialization, any audit server to Key Management server application sign public private key pair（pka,ska）
And keypkb, block chain block generates server to Key Management server application public signature keypka；
Step 2：Audit server acquires original Audit datamAnd utilize encryption keykEncryption generatesC 1 , utilizepkbIt is rightkAdd
It is close, it generatesC 2 , utilizeskaIt is rightC 1 WithC 2 It is digitally signed, generatesσ；Audit server generates server to block and sendsC 1 、C 2
Withσ；
Step 3：Block generates server by utilizingpkaVerifyingC 1 、C 2 WithσValidity, if in vain, abandonC 1 、C 2 Withσ, walked
Rapid 5, it otherwise, willC 1 、C 2 WithσIt is placed in data buffer zone, judges whether block formation condition meets, it is no if then carrying out in next step
Then, return step 2；
Step 4：Block generates server and generates new block, and broadcasts, and new block includes original Audit datam；
Step 5：Show that end generates server request to block and checks Audit data, when block generates the area of not auditing in server
When block number is greater than 0, if decryption passes through, show that end obtains original Audit datam, otherwise, carry out in next step；
Step 6：Terminate.
2. a kind of network security auditing method based on block chain according to claim 1, it is characterised in that：The step
In 1, the signature public private key pair of any audit server（pka,ska）And keypkbIt is unique.
3. a kind of network security auditing method based on block chain according to claim 1, it is characterised in that：The step
In 1, show end to Key Management server application decrypted private keyskb。
4. a kind of network security auditing method based on block chain according to claim 3, it is characterised in that：The step
In 5, show that end generates server request to block and checks Audit data, when the block counts of not auditing in block generation server are big
When 0, obtainC 1 WithC 2 , withskbIt is rightC 2 Decryption, obtains encryption keyk, withkIt is rightC 1 Decryption, obtains original Audit datam。
5. a kind of network security auditing method based on block chain according to claim 1, it is characterised in that：The encryption
KeykFor symmetric key.
6. a kind of network security audit using the network security auditing method based on block chain described in one of claim 1 ~ 5
System, including the audit server for acquiring Audit data and the displaying end for showing Audit data, it is characterised in that：Institute
Stating Network Security Audit System further includes：
One is added in block chain for verifying the validity of the collected Audit data of the audit server and being packaged in due course
Block generate server；
One for key and signature public private key pair needed for managing and distribute audit server, block generation server and showing end
Key Management server；
The audit server generates server with Key Management server and block respectively and is equipped with；The displaying end difference
Server is generated with Key Management server and block to be equipped with；The block generate server also with Key Management server
It is equipped with.
7. a kind of Network Security Audit System of network security auditing method based on block chain according to claim 6,
It is characterized in that：It include that one or more blocks generate server in the Network Security Audit System.
8. a kind of Network Security Audit System of network security auditing method based on block chain according to claim 7,
It is characterized in that：When including that multiple blocks generate server in Network Security Audit System, multiple blocks are generated between server
With common recognition mechanism, the common recognition mechanism and either block generate server cooperation.
9. a kind of Network Security Audit System of network security auditing method based on block chain according to claim 6,
It is characterized in that：It is computer group that the block, which generates server,.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810807355.XA CN108833440B (en) | 2018-07-21 | 2018-07-21 | Block chain-based network security audit system and network security audit method |
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| CN201810807355.XA CN108833440B (en) | 2018-07-21 | 2018-07-21 | Block chain-based network security audit system and network security audit method |
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| CN108833440B CN108833440B (en) | 2021-03-30 |
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| CN109729068A (en) * | 2018-11-23 | 2019-05-07 | 北京丁牛科技有限公司 | Security breaches auditing system based on block chain technology |
| CN109784920A (en) * | 2018-12-27 | 2019-05-21 | 上海边界智能科技有限公司 | A kind of Transaction Information auditing method and device based on block chain |
| CN110147995A (en) * | 2019-05-06 | 2019-08-20 | 山东公链信息科技有限公司 | A kind of auditing method based on key level |
| CN111143837A (en) * | 2019-12-25 | 2020-05-12 | 天津南大通用数据技术股份有限公司 | Method for storing database security audit record |
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| CN114900373A (en) * | 2022-07-11 | 2022-08-12 | 南京极域信息科技有限公司 | Dynamic encryption system and method for realizing audit data storage |
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| CN114900373A (en) * | 2022-07-11 | 2022-08-12 | 南京极域信息科技有限公司 | Dynamic encryption system and method for realizing audit data storage |
| CN114900373B (en) * | 2022-07-11 | 2022-10-14 | 南京极域信息科技有限公司 | Dynamic encryption system and method for realizing audit data storage |
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|---|---|
| CN108833440B (en) | 2021-03-30 |
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