CN109614806A - Log Administration System based on block chain - Google Patents
Log Administration System based on block chain Download PDFInfo
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- CN109614806A CN109614806A CN201811462333.0A CN201811462333A CN109614806A CN 109614806 A CN109614806 A CN 109614806A CN 201811462333 A CN201811462333 A CN 201811462333A CN 109614806 A CN109614806 A CN 109614806A
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- 238000004458 analytical method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000013475 authorization Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010200 validation analysis Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000007726 management method Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000013500 data storage Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000006399 behavior Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/604—Tools and structures for managing or administering access control systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6227—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
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- General Health & Medical Sciences (AREA)
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- Health & Medical Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses the Log Administration Systems based on block chain, it is big for daily record data amount in information system, traditional file storage is insufficient for demand, the high value of log simultaneously also needs to realize the secure storage of file, the present invention realizes the storage of log document by using distributed system architecture, guarantees the confidentiality of data by data encryption；But during distributed storage, user is usually unable to control data storage server currently in use, it means that there are data confidentiality, the risk of data integrity and availability of data.The features such as appearance of block chain technology provides a feasible Technology Ways to the management of log big data, and block chain has decentralization, goes to trust, and information is difficult to tamper with, can effectively realize the integrity certification of data.
Description
Technical field
The invention belongs to the log management field in information system, in particular to a kind of daily record data pipe based on block chain
Reason system.
Background technique
In information system, operation can all leave a trace every time, and here it is log, each log document has log recording group
At every log recording describes the event once individually occurred.Inside a complete information system, log system right and wrong
Often important functional component.It can recorde all behaviors caused by lower system, and express according to certain specification.
With popularizing for computer network, enterprise has put into more and more network equipments, and safety equipment generates largely in operation
Running log, such as Firewall Log, IDS log, database journal etc.；It also can there is a large amount of days in information system
Will.The record of these logs is all highly important to system monitoring, inquiry, security audit and fault diagnosis.Security log
Above-mentioned important feature, leading to it often becomes the object of attack of attacker.Attacker targetedly modifies, deletes and forges day
Relative recording in will can hide behavior, meanwhile, the running log tissue inside information system is huge, and framework is multiple
Miscellaneous, daily record data amount is huge and more dispersed, and there are Log data format multiplicity, and data storage and search is difficult, causes a large amount of
Daily record data can not be fully utilized, data consumer is difficult quickly to obtain effective information from log.
By above-mentioned analysis, the safety equipment daily record data amount in information system is big, and traditional file storage or biography
The modes such as system database have been unable to meet system requirements；The high value of security log results in it often again simultaneously becomes attack
The object of attack of person.In view of the above problems, the storage of log document will be realized using distributed system architecture herein, but
During distributed storage, data consumer is usually unable to control data storage server currently in use, it means that exists
The risk of data confidentiality, data integrity and availability of data.The appearance of block chain technology is mentioned to the management of log big data
Supply a feasible Technology Ways, it the features such as block chain has decentralization, goes to trust, and information is difficult to tamper with, can be effective
The integrity certification for realizing data, guarantees the confidentiality of data additionally by data encryption.
Summary of the invention
In order to solve the secure storage and data protection of daily record data in information system, the invention proposes be based on block
The Log security storage and management framework of chain.Log big data is stored by distributed document storage architecture, and is calculated using encryption
The confidentiality of method guarantee data.The characteristics of block chain has " decentralization " simultaneously, " can not distort ", utilizes this of block chain
Feature verifies the integrality of data, guarantees the integrality of data with this.
With the continuous improvement of the level of informatization, global metadata increasingly expands.In face of current PB grades of mass data storage
Demand, there are bottlenecks in the extension of capacity and performance for traditional storage system.Cloud storage is strong with its scalability, cost performance is high,
The advantages such as zmodem have obtained the extensive approval of industry.
The present invention realizes the distributed storage of log big data using the distributed document memory technology of cloud storage.Yun Cun
Storage can be divided into three classes: public cloud storage, private cloud storage and mixing cloud storage.Public cloud service arrangement is opened up in whole network
In flutterring, safety is lower；Private clound is typically established inside enterprise firewall, and corresponding safety is also more preferable.Comprehensively consider
Safety and the aspect of performance two, the mixing cloud model combined herein using public cloud and private clound, private clound be responsible for data encryption,
Index construct etc. is highly-safe, calculating task is not very big operation, and public cloud is responsible for extensive document storage, query processing
Deng the biggish operation of load.
In order to reach the purpose of the present invention, the technical solution adopted by the present invention is the Log Administration System based on block chain,
The system is a prototype system of building, and the prototype system is by data owner, data consumer module, public cloud and private
It is made of four part of cloud.It is attached between data owner and data consumer module by access control, data owner
It is connect respectively with public cloud and private clound；Private clound is connect with public cloud, data consumer module by searching keyword with
Private clound connection, public cloud are attached by obtaining log recording with data consumer module；Public cloud is block chain and chain
Lower cloud storage form.
Data owner (DO) is responsible for log document pretreatment work, extracts keyword for each log document and generates log
Document metadata, and metadata is uploaded to private clound.Meanwhile encryption is carried out to source document and is uploaded to public cloud storage platform,
And the location information of the Hash of journal file and its ciphertext document is stored in block chain.Privately owned cloud platform is responsible for log text
Inverted index is constructed after shelves metadata encryption, is then uploaded in the block chain extension header at public cloud end；In addition, private clound
It is also responsible for submitting to public cloud after encrypting term after the term for receiving data consumer.Public cloud receive it is privately owned
After the encrypted query request of cloud, according to the corresponding file location information of keyword, goes to find corresponding document and be then returned to
Data consumer.Data consumer (DC) is authorized log management person, submits searching keyword to private clound, receives and
Search result from public cloud carries out log analysis processing for log management person after decryption.
Compared with prior art, it is proposed by the present invention it is a kind of based on the log management scheme of block chain in information system
Under the premise of generating a large amount of daily record datas, in order to which data consumer provides a kind of log memory scan scheme, day can be realized
The secure storage of will, and Retrieval Interface is externally provided, while ensure that the confidentiality and data integrity of log.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention.
Fig. 2 is the flow diagram of memory scan of the present invention.
Fig. 3 is index structure schematic diagram of the present invention.
Fig. 4 is chain structure schematic diagram of the present invention.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.
Fig. 1 is that the present invention is based on the overall construction drawings of the log management of block chain, as shown in Figure 1, including data owner
Module is responsible for daily record data processing work.Owner's module will be on after data encryption using Encryption Algorithm by the log document of encryption
Public cloud is reached, in order to realize data integrity validation, data Hash and file location information are stored in the transaction of block chain
In record；Meanwhile keyword is extracted for each log document and generates document metadata, and metadata is uploaded to private clound.
Private clound console module is responsible for building index.Privately owned cloud platform is responsible for falling building after the encryption of log document metadata
Row's index, is then uploaded in the block chain extension header at public cloud end；In addition, private clound is also responsible for receiving data consumption
Submit to public cloud after term being encrypted after the term of person.Public cloud requests it in the encrypted query for receiving private clound
Afterwards, it according to the corresponding file location information of keyword, goes to find corresponding document and is then returned to data consumer.
Data consumer module refers to the data consumer for carrying out log analysis retrieval.Obtain data consumer authorization it
Afterwards, as private clound submits searching keyword, search result of the reception from public cloud, for consumer's analysis processing after decryption.
Fig. 2 is the execution flow diagram of memory scan, as shown in Figure 2, comprising:
Step 21, plaintext log document is obtained；
Step 22, log document is handled, log document metadata is obtained；
Step 23, encrypted logs document metadata obtains ciphertext metadata；
Step 24, ciphertext inverted index is constructed；
Step 25, using Encryption Algorithm encrypting plaintext log document, it is uploaded to public cloud；
Step 26, data consumer input inquiry keyword；
Step 27, searching keyword is handled, the searching keyword after being expanded；
Step 28, encrypted query keyword set, and it is committed to public cloud；
Step 29, public cloud gets ciphertext document according to keyword；
Step 210, data consumer decrypts the ciphertext document retrieved, obtains plain text document；
Fig. 3 is index structure schematic diagram of the present invention, as shown in Figure 3, comprising:
Since the log quantity generated daily in safety equipment is very big, thousands of records can be reached, for energy quick-searching phase
Daily record data is closed, needs to index to the key condition of log recording.To IP address of equipment, port numbers, protocol type indexes.
Using inverted index table structure, index construct process is as follows: the plaintext metadata information uploaded by data consumer is obtained first,
Private clound is responsible for being encrypted to obtain ciphertext document metadata, scans ciphertext document metadata, extracts keyword, constitutes ciphertext and closes
Keyword set KW=(KW1, KW2 ..., KWn), KW1, KW2 ..., KWn are ciphertext keyword element；To each keyword KWi
The document Fi comprising the keyword is extracted as in a tuple insertion index chained list.
Index construct carries out in privately owned Cloud Server, and the ciphertext index file built is uploaded to public cloud by private clound
End is encrypted searching keyword using same Encryption Algorithm and key pair keyword by private clound, then in retrieval
Inquiry request is submitted to public cloud.
Fig. 4 is chain structure schematic diagram of the present invention, as shown in Figure 4, comprising:
In order to realize the secure storage and searching ciphertext of log, field expansion has been done to block chain header structure in the present invention
Exhibition, as shown in figure 3, for storing the inverted index encrypted after document pretreatment work, after getting inquiry request, according to
Key-value pair information gets file location information, to get correlation log document.Block body is a Merkle tree, leaf
Node is made of the summary info of encrypted logs document and the location information of log document.Merkle root node is stored in block
In head, the value of Merkle root node is that the constantly upward Hash of leaf node generates, according to the uniqueness of hash algorithm, if leaf
Any information in child node is changed, then the root node being finally calculated can also change.To carry out check field
Whether the data in block are tampered with.
Although not each embodiment only includes it should be appreciated that this specification is described according to embodiment
One independent technical solution, for the sake of this narrating mode of specification is just for the sake of understanding, those skilled in the art is answered
When considering the specification as a whole, the technical solution in each embodiment can also be appropriately combined, according to art technology
The understanding of personnel is implemented.
A series of detailed descriptions illustrating only for feasible embodiment of the invention listed above,
They are not intended to limit protection scope of the present invention, all without departing from equivalent implementations made by invention skill spirit or change
More it should all be included in the protection scope of the present invention.
Claims (8)
1. the Log Administration System based on block chain, it is characterised in that: the system is a prototype system of building, the prototype system
System is by data owner, data consumer module, public cloud and four part of private clound composition；Data owner and data consumption
It is attached between person's module by access control, data owner connect with public cloud and private clound respectively；Private clound with
Public cloud connection, data consumer module connects by searching keyword with private clound, public cloud by acquisition log recording and
Data consumer module is attached；Public cloud is cloud storage form under block chain and chain.
2. the Log Administration System according to claim 1 based on block chain, it is characterised in that: data owner is responsible for day
Will document pretreatment work extracts keyword for each log document and generates log document metadata, and metadata is uploaded to
Private clound；Meanwhile encryption is carried out to source document and is uploaded to public cloud storage platform, and the Hash of journal file and its ciphertext is literary
The location information of shelves is stored in block chain；Privately owned cloud platform is responsible for constructing inverted index to after the encryption of log document metadata,
Then it is uploaded in the block chain extension header at public cloud end；In addition, private clound is also responsible in the inspection for receiving data consumer
Submit to public cloud after term being encrypted after rope word；Public cloud receive private clound encrypted query request after, according to
The corresponding file location information of keyword, goes to find corresponding document and is then returned to data consumer；Data consumer be
To the log management person of authorization, searching keyword is submitted to private clound, the search result from public cloud is received, is supplied after decryption
Log management person carries out log analysis processing.
3. the Log Administration System according to claim 1 based on block chain, it is characterised in that: the log based on block chain
The overall structure of management includes that data owner's module is responsible for daily record data processing work；Data owner's module is by the day of encryption
Will document will be uploaded to public cloud using Encryption Algorithm after data encryption, to realize data integrity validation, by data Hash
And file location information is stored in block chain transaction record；Meanwhile keyword is extracted for each log document and generates document member
Data, and metadata is uploaded to private clound.
4. the Log Administration System according to claim 1 based on block chain, it is characterised in that: private clound console module is negative
Duty building index；Privately owned cloud platform is responsible for constructing inverted index to after the encryption of log document metadata, is then uploaded to public affairs
Altogether in the block chain extension header in cloud；In addition, private clound is also responsible for adding term after the term for receiving data consumer
Public cloud is submitted to after close；Public cloud is after the encrypted query request for receiving private clound, according to the corresponding file of keyword
Location information, goes to find corresponding document and is then returned to data consumer.
5. the Log Administration System according to claim 1 based on block chain, it is characterised in that: data consumer module is
The data consumer of fingering row log analysis retrieval；Obtain data consumer authorization after, as private clound submit searching keyword,
The search result from public cloud is received, is handled after decryption for consumer's analysis.
6. the Log Administration System according to claim 1 based on block chain, it is characterised in that: the retrieval of storage executes stream
Journey includes,
Step 21, plaintext log document is obtained；
Step 22, log document is handled, log document metadata is obtained；
Step 23, encrypted logs document metadata obtains ciphertext metadata；
Step 24, ciphertext inverted index is constructed；
Step 25, using Encryption Algorithm encrypting plaintext log document, it is uploaded to public cloud；
Step 26, data consumer input inquiry keyword；
Step 27, searching keyword is handled, the searching keyword after being expanded；
Step 28, encrypted query keyword set, and it is committed to public cloud；
Step 29, public cloud gets ciphertext document according to keyword；
Step 210, data consumer decrypts the ciphertext document retrieved, obtains plain text document.
7. the Log Administration System according to claim 6 based on block chain, it is characterised in that: the structure of index includes such as
Under,
Since the log quantity generated daily in safety equipment is very big, thousands of records can be reached, for energy quick-searching relevant date
Will data need to index to the key condition of log recording；To IP address of equipment, port numbers, protocol type indexes；Using
Inverted index table structure, index construct process are as follows: the plaintext metadata information uploaded by data consumer is obtained first, it is privately owned
Cloud is responsible for being encrypted to obtain ciphertext document metadata, scans ciphertext document metadata, extracts keyword, constitutes ciphertext keyword
Set KW=(KW1, KW2 ..., KWn), KW1, KW2 ..., KWn are ciphertext keyword element；Each keyword KWi is extracted
Document Fi comprising the keyword is as in a tuple insertion index chained list；
Index construct carries out in privately owned Cloud Server, and the ciphertext index file built is uploaded to public cloud by private clound,
In retrieval, searching keyword is encrypted using same Encryption Algorithm and key pair keyword by private clound, then to
Public cloud submits inquiry request.
8. the Log Administration System according to claim 1 based on block chain, it is characterised in that: the chain type based on block chain
Structure includes:
In order to realize the secure storage and searching ciphertext of log, field extension is done to block chain header structure, for storing text
The inverted index encrypted after shelves pretreatment work gets file position according to key-value pair information after getting inquiry request
Confidence breath, to get correlation log document；Block body is a Merkle tree, and leaf node is plucked by encrypted logs document
The location information of information and log document is wanted to form；Merkle root node is stored in block head, the value of Merkle root node
It is that the constantly upward Hash of leaf node generates, according to the uniqueness of hash algorithm, if any information in leaf node is sent out
Change is given birth to, then the root node being finally calculated can also change；Thus to verify whether the data in block are tampered
It crosses.
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| CN201811462333.0A CN109614806A (en) | 2018-12-03 | 2018-12-03 | Log Administration System based on block chain |
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| CN110084069A (en) * | 2019-04-17 | 2019-08-02 | 江苏全链通信息科技有限公司 | Server log monitoring method and system based on block chain |
| CN110336827A (en) * | 2019-07-15 | 2019-10-15 | 北京工业大学 | A kind of Modbus Transmission Control Protocol fuzz testing method based on exception field positioning |
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| CN110084069A (en) * | 2019-04-17 | 2019-08-02 | 江苏全链通信息科技有限公司 | Server log monitoring method and system based on block chain |
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| US11663347B2 (en) | 2019-04-26 | 2023-05-30 | Jpmorgan Chase Bank, N.A. | Systems and methods for maintaining immutable data access logs with privacy |
| WO2019141289A3 (en) * | 2019-05-14 | 2020-03-12 | Alibaba Group Holding Limited | Methods and devices for data traversal |
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| CN110336827A (en) * | 2019-07-15 | 2019-10-15 | 北京工业大学 | A kind of Modbus Transmission Control Protocol fuzz testing method based on exception field positioning |
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