CN106936818A - Data Audit method, client and block chain cloud device based on block chain technology - Google Patents
Data Audit method, client and block chain cloud device based on block chain technology Download PDFInfo
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- CN106936818A CN106936818A CN201710103752.4A CN201710103752A CN106936818A CN 106936818 A CN106936818 A CN 106936818A CN 201710103752 A CN201710103752 A CN 201710103752A CN 106936818 A CN106936818 A CN 106936818A
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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
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- 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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The present invention provides a kind of Data Audit method based on block chain technology, client and block chain cloud device.Methods described includes：File destination is uploaded to block chain high in the clouds；The audit tree of the dynamic generation file destination；According to the audit tree, the validity of the file destination is verified.The present invention can in real time verify the validity of storage file, and verification process consumes less network bandwidth resources.
Description
Technical field
The present invention relates to block chain technical field, more particularly to a kind of Data Audit method, visitor based on block chain technology
Family end and block chain cloud device.
Background technology
Based on we are by block chain technology, realize decentralization and reside in the data storage of distributed frame, pass
Method that is defeated and proving.In application block chain technology carries out the system of data backup memory, the audit of data is one very heavy
The problem wanted.Current auditing method, substantially there is two kinds, and a kind of is the method audited by real-time return data, very
Obviously, this method is to the consumption of the network bandwidth than larger, and practicality is not strong.Data are previously generated fixation by second method
The check value of quantity is published to network and is verified, the defect of this method is that checking will consume a check value each time,
Once check value is finished, will be unable to effectively be verified again.
The content of the invention
The Data Audit method based on block chain technology, client and block chain cloud device that the present invention is provided, can
The validity of storage file is verified in real time, and verification process consumes less network bandwidth resources.
In a first aspect, the present invention provides a kind of Data Audit method based on block chain technology, methods described is applied to visitor
Family end, methods described includes：
File destination is uploaded to block chain high in the clouds；
The audit tree of the dynamic generation file destination；
According to the audit tree, the validity of the file destination is verified.
Alternatively, before the file destination to the upload of block chain high in the clouds, methods described also includes：
The file destination is cut into slices, the multiple data blocks of generation；
Each data block is encrypted.
Alternatively, it is described to include to block chain high in the clouds upload file destination：By by each data block after encryption
It is saved on each multihome node in block chain high in the clouds.
Alternatively, the audit tree of the dynamic generation file destination includes：
For the data block deposited on each multihome node in block chain generates a random number；
The random number and the data merged block of each data block that will be generated, generate a cryptographic Hash；
The cryptographic Hash of generation is successively merged, a complete audit tree is generated.
Alternatively, described according to the audit tree, verifying the validity of the file destination includes：
The random number of each data block for generating is sent to corresponding each multihome node；
Receive the cryptographic Hash that each multihome node sends；
The cryptographic Hash that will be received is contrasted with the cryptographic Hash of each multihome node in the audit tree；
Whether effectively to judge each data block, when contrasting consistent, the data block is effective；
The validity of the file destination is verified, when all data blocks are effective, the file destination is effective.
Second aspect, the present invention provides a kind of Data Audit method based on block chain technology, and methods described is applied to area
Block chain high in the clouds, methods described includes：
Receive the file destination of client upload；
Receive the random number of each data block that client sends；
By the random number and corresponding data merged block, the cryptographic Hash of each multihome node is calculated；Institute is sent to client
The cryptographic Hash of each multihome node is stated, so that the validity of each data block of client validation.
The third aspect, the present invention provides a kind of client, and the client includes：
Uploading unit, for uploading file destination to block chain high in the clouds；
Generation unit, for the audit tree of the dynamic generation file destination；
First authentication unit, for according to the audit tree, verifying the validity of the file destination.
Alternatively, the client also includes：
Section unit, for before the uploading unit uploads the file destination, the file destination being cut
Piece, the multiple data blocks of generation；
Ciphering unit, is encrypted for each data block to the section unit generation.
Alternatively, the uploading unit, for will be preserved by each data block after the ciphering unit encryption
Onto each multihome node in block chain high in the clouds.
Alternatively, the generation unit includes：
First generation module, for generating a random number for the data block deposited on each multihome node in block chain；
Second generation module, the random number and the data block of each data block for first generation module to be generated
Merge, generate a cryptographic Hash；
3rd generation module, for the cryptographic Hash that second generation module is generated to be successively merged, generates one completely
Audit tree.
Alternatively, first authentication unit includes：
Sending module, for the random number of each data block for generating to be sent into corresponding each multihome node；
Receiver module, for receiving the cryptographic Hash that each multihome node sends；
First contrast module, cryptographic Hash and the cryptographic Hash of each multihome node in the audit tree for that will receive are carried out
Contrast；
First judge module, for whether effectively to judge each data block, when the result one of first contrast module contrast
During cause, the data block is effective；
Authentication module, the validity for verifying the file destination, when all data blocks are effective, the file destination
Effectively.
Fourth aspect, the present invention provides a kind of block chain cloud device, and the block chain cloud device includes：
First receiving unit, the file destination for receiving client upload；
Second receiving unit, the random number of each data block for receiving client transmission；
Computing unit, for by the random number and corresponding data merged block, calculating the cryptographic Hash of each multihome node；
Transmitting element, the cryptographic Hash for sending each multihome node to client, so that each data of client validation
The validity of block.
Data Audit method based on block chain technology provided in an embodiment of the present invention, client and block chain high in the clouds set
It is standby, generate the audit tree of file destination in real time by client, then audit tree is published in block chain after particular procedure, so
Audit is initiated to host's backup node as needed afterwards, so that client, host end complete storage file according to audit tree
Validation verification.Compared with prior art, the present invention can at any time initiate the checking to storage file, and verification process is consumed
Less network bandwidth resources.
Brief description of the drawings
Fig. 1 is the flow chart of the Data Audit method that one embodiment of the invention is based on block chain technology；
Fig. 2 is the flow chart of the Data Audit method that another embodiment of the present invention is based on block chain technology；
Fig. 3 is the implementation schematic diagram of present invention generation audit tree；
Fig. 4 is the structural representation of one embodiment of the invention client；
Fig. 5 is the structural representation of the generation unit of one embodiment of the invention client；
Fig. 6 is the structural representation of the first authentication unit of one embodiment of the invention client；
Fig. 7 is the structural representation of one embodiment of the invention client；
Fig. 8 is the structural representation of one embodiment of the invention block chain cloud device；
Fig. 9 is the structural representation of one embodiment of the invention block chain cloud device；
Figure 10 is the second authentication unit structural representation of one embodiment of the invention block chain cloud device.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Only it is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present invention provides a kind of Data Audit method based on block chain technology, and methods described is applied to client, such as Fig. 1
Shown, methods described includes：
S11, to block chain high in the clouds upload file destination；
S12, the audit tree for generating the file destination；
S13, according to the audit tree, verify the validity of the file destination.
The present invention provides a kind of Data Audit method based on block chain technology, and methods described is applied to block chain high in the clouds,
As shown in Fig. 2 methods described includes：
S21, the file destination for receiving client upload；
S22, the random number for receiving each data block that client sends；
S23, by the random number and corresponding data merged block, calculate the cryptographic Hash of each multihome node；
S24, the cryptographic Hash that the corresponding each multihome node of the random number is returned to client, so that each number of client validation
According to the validity of block.
Data Audit method based on block chain technology provided in an embodiment of the present invention, target is generated by client in real time
The audit tree of file, then audit tree is published in block chain after particular procedure, then as needed to host's backup node
Audit is initiated, so that client, host end complete the validation verification of storage file according to audit tree.With prior art phase
Than the present invention can at any time initiate the checking to storage file, and verification process consumes less network bandwidth resources.
Specifically, user uploads a file by client to block chain high in the clouds, in order to ensure that block chain high in the clouds preserves
File data be not tampered with, client need often checking file validity.The present invention provide based on block chain technology
Data Audit method to implement step as follows：
, by one file of client upload, file can be carried out section and be divided into some numbers by system for step one, user
According to block, each data block is individually encrypted, and is then saved in other users on internet and is contributed in the hard drive space come.Wherein,
Contribute the user node of hard drive space turns into multihome node herein.
It is data block (i) generation deposited on each multihome node (i) when step 2, client are per secondary checking file
One random number (i), then random number (i) is merged with data block (i), a cryptographic Hash (i) is generated, then successively merge, most
Throughout one's life into a complete Merkle tree (audit tree), implementation description is as shown in Figure 3.
Step 3, client by Merkle tree deletions leaf node (cryptographic Hash 0, cryptographic Hash 1, cryptographic Hash 2, cryptographic Hash 3 this
One layer) after be published on network, each multihome node verifies client with this.Verification method is to contrast the root Hash of dynamic calculation
Value and the root cryptographic Hash of client issue, unanimously then represent that client is believable.
When step 4, client verify data block (i) to multihome node (i), random number (i) is sent to multihome node
I (), the cryptographic Hash (i) for then contrasting multihome node (i) return is the validity that can determine that the data block.
Step 5, when the checking of all data blocks is effective, it is determined that the validity of whole file.
The embodiment of the present invention also provides a kind of client, as shown in figure 4, the client includes：
Uploading unit 11, for uploading file destination to block chain high in the clouds；
Generation unit 12, the audit tree for generating the file destination；
First authentication unit 13, for according to the audit tree, verifying the validity of the file destination.
Alternatively, as shown in figure 5, the client also includes：
Section unit 14, for before the uploading unit 11 uploads the file destination, the file destination being entered
Row section, the multiple data blocks of generation；
Ciphering unit 15, is encrypted for each data block to the section unit generation.
Alternatively, as shown in fig. 6, the generation unit 12 includes：
First generation module 121, for generating one at random for the data block deposited on each multihome node in block chain
Number；
Second generation module 122, for the random number of each data block that generates first generation module 121 with it is described
Data merged block, generates a cryptographic Hash；
3rd generation module 123, for the cryptographic Hash that second generation module 122 is generated to be successively merged, generation one
Complete audit tree.
Alternatively, as shown in fig. 7, first authentication unit 13 includes：
Sending module 131, for the random number of each data block for generating to be sent into corresponding each multihome node；
Receiver module 132, for receiving the cryptographic Hash that each multihome node sends；
First contrast module 133, for the cryptographic Hash and each place in the audit tree that receive the receiver module 132
The cryptographic Hash of host node is contrasted；
First judge module 134, for whether effectively to judge each data block, when first contrast module 133 contrast
When result is consistent, the data block is effective；
Authentication module 135, the validity for verifying the file destination, when all data blocks are effective, the target
File is effective.
Alternatively, as shown in figure 5, the client also includes：
Release unit 16, for after the audit tree that the generation unit generates the file destination, by the audit
It is published on network after tree deletion leaf node, so that the credibility of client is verified in the block chain high in the clouds.
The embodiment of the present invention also provides a kind of block chain cloud device, as shown in figure 8, the block chain cloud device bag
Include：
First receiving unit 21, the file destination for receiving client upload；
Second receiving unit 22, the random number of each data block for receiving client transmission；
Computing unit 23, for by the random number and corresponding data merged block, calculating the cryptographic Hash of each multihome node；
Transmitting element 24, the cryptographic Hash for sending each multihome node to client, so that each number of client validation
According to the validity of block.
Alternatively, as shown in figure 9, the block chain cloud device also includes：
Second authentication unit 25, for receiving the random of each data block that client sends in second receiving unit 23
After number, the credibility of client is verified.
Alternatively, as shown in Figure 10, second authentication unit 25 includes：
Second contrast module 251, the cryptographic Hash that the audit for the client to be issued is set and multihome node passback
Cryptographic Hash is contrasted；
Second judge module 252, for judging whether the client is credible, when the knot of second contrast module contrast
When fruit is consistent, the judgement client is credible and non-repudiation.
Client provided in an embodiment of the present invention and block chain cloud device, file destination is generated by client in real time
Audit tree, then audit tree is published in block chain after particular procedure, then examined to the initiation of host's backup node as needed
Meter, so that client, host end complete the validation verification of storage file according to audit tree.Compared with prior art, this hair
The bright checking that can be initiated at any time to storage file, and verification process consumes less network bandwidth resources.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method, can be
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (12)
1. a kind of Data Audit method based on block chain technology, it is characterised in that methods described is applied to client, the side
Method includes：
File destination is uploaded to block chain high in the clouds；
The audit tree of the dynamic generation file destination；
According to the audit tree, the validity of the file destination is verified.
2. method according to claim 1, it is characterised in that it is described upload file destination to block chain high in the clouds before,
Methods described also includes：
The file destination is cut into slices, the multiple data blocks of generation；
Each data block is encrypted.
3. method according to claim 2, it is characterised in that described to upload file destination to block chain high in the clouds and include：Will
It is saved on each multihome node in block chain high in the clouds by each data block after encryption.
4. method according to claim 3, it is characterised in that the audit tree of the dynamic generation file destination is wrapped
Include：
For the data block deposited on each multihome node in block chain generates a random number；
The random number and the data merged block of each data block that will be generated, generate a cryptographic Hash；
The cryptographic Hash of generation is successively merged, a complete audit tree is generated.
5. method according to claim 4, it is characterised in that the validity of the checking file destination includes：
The random number of each data block for generating is sent to corresponding each multihome node；
Receive the cryptographic Hash that each multihome node sends；
The cryptographic Hash that will be received is contrasted with the cryptographic Hash of each multihome node in the audit tree；
Whether effectively to judge each data block, when contrasting consistent, the data block is effective；
The validity of the file destination is verified, when all data blocks are effective, the file destination is effective.
6. a kind of Data Audit method based on block chain technology, it is characterised in that methods described is applied to block chain high in the clouds, institute
The method of stating includes：
Receive the file destination of client upload；
Receive the random number of each data block that client sends；
By the random number and corresponding data merged block, the cryptographic Hash of each multihome node is calculated；
The cryptographic Hash of each multihome node is sent to client, so that the validity of each data block of client validation.
7. a kind of client, it is characterised in that the client includes：
Uploading unit, for uploading file destination to block chain high in the clouds；
Generation unit, for the audit tree of the dynamic generation file destination；
First authentication unit, for according to the audit tree, verifying the validity of the file destination.
8. client according to claim 7, it is characterised in that the client also includes：
Section unit, it is raw for before the uploading unit uploads the file destination, the file destination being cut into slices
Into multiple data blocks；
Ciphering unit, is encrypted for each data block to the section unit generation.
9. client according to claim 8, it is characterised in that the uploading unit, for will be single by the encryption
Each data block after first encryption is saved on each multihome node in block chain high in the clouds.
10. client according to claim 9, it is characterised in that the generation unit includes：
First generation module, for generating a random number for the data block deposited on each multihome node in block chain；
Second generation module, the random number of each data block for first generation module to be generated is closed with the data block
And, generate a cryptographic Hash；
3rd generation module, for the cryptographic Hash that second generation module is generated to be successively merged, generation one is complete to be examined
Meter tree.
11. clients according to claim 10, it is characterised in that first authentication unit includes：
Sending module, for the random number of each data block for generating to be sent into corresponding each multihome node；
Receiver module, for receiving the cryptographic Hash that each multihome node sends；
First contrast module, for the Kazakhstan of the cryptographic Hash that receives the receiver module and each multihome node in the audit tree
Uncommon value is contrasted；
First judge module, for whether effectively to judge each data block, when the result of first contrast module contrast is consistent,
The data block is effective；
Authentication module, the validity for verifying the file destination, when all data blocks are effective, the file destination has
Effect.
12. a kind of block chain cloud devices, it is characterised in that the block chain cloud device includes：
First receiving unit, the file destination for receiving client upload；
Second receiving unit, the random number of each data block for receiving client transmission；
Computing unit, for by the random number and corresponding data merged block, calculating the cryptographic Hash of each multihome node；
Transmitting element, the cryptographic Hash for sending each multihome node to client, so that each data block of client validation
Validity.
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| CN201710103752.4A CN106936818A (en) | 2017-02-24 | 2017-02-24 | Data Audit method, client and block chain cloud device based on block chain technology |
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| CN201710103752.4A CN106936818A (en) | 2017-02-24 | 2017-02-24 | Data Audit method, client and block chain cloud device based on block chain technology |
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Family
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Cited By (16)
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| CN108076063A (en) * | 2017-12-25 | 2018-05-25 | 天津理工大学 | Network O＆M auditing method, server terminal and client based on block chain |
| CN108256353A (en) * | 2018-01-11 | 2018-07-06 | 武汉斗鱼网络科技有限公司 | A kind of data integrity verifying method, apparatus and client |
| CN108364223A (en) * | 2017-12-29 | 2018-08-03 | 阿里巴巴集团控股有限公司 | A kind of method and device of Data Audit |
| CN108664221A (en) * | 2018-05-11 | 2018-10-16 | 北京奇虎科技有限公司 | A kind of data proof of possession method, apparatus and readable storage medium storing program for executing |
| CN108681583A (en) * | 2018-05-11 | 2018-10-19 | 北京奇虎科技有限公司 | Data proof of possession method, apparatus and readable storage medium storing program for executing based on block chain |
| CN108881421A (en) * | 2018-06-05 | 2018-11-23 | 天津大学 | Cloud service Data Audit method based on block chain |
| CN108900505A (en) * | 2018-06-28 | 2018-11-27 | 中国科学院软件研究所 | A kind of cluster audit management-control method based on block chain technology |
| CN109471903A (en) * | 2018-10-25 | 2019-03-15 | 深圳壹账通智能科技有限公司 | Sharing method, device and the computer equipment of block chain information |
| CN109697204A (en) * | 2017-10-23 | 2019-04-30 | 阿里巴巴集团控股有限公司 | A kind of method and device of Data Audit |
| CN109768954A (en) * | 2017-11-09 | 2019-05-17 | 诺基亚通信公司 | Method and apparatus for the integrity protection system supported by block chain |
| CN110365766A (en) * | 2019-07-12 | 2019-10-22 | 全链通有限公司 | Cloud storage method, equipment and computer readable storage medium based on block chain |
| US10476701B2 (en) | 2017-11-21 | 2019-11-12 | National Chiao Tung University | Method for high-security data transmission of blockchain |
| CN110636087A (en) * | 2018-06-21 | 2019-12-31 | 北京果仁宝软件技术有限责任公司 | Data processing method and system based on alliance chain |
| CN111652458A (en) * | 2020-04-09 | 2020-09-11 | 南京审计大学 | Engineering auditing method based on block chain technology |
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| CN109768954B (en) * | 2017-11-09 | 2021-09-21 | 诺基亚通信公司 | Method and apparatus for integrity protection system supported by blockchain |
| CN109768954A (en) * | 2017-11-09 | 2019-05-17 | 诺基亚通信公司 | Method and apparatus for the integrity protection system supported by block chain |
| US10476701B2 (en) | 2017-11-21 | 2019-11-12 | National Chiao Tung University | Method for high-security data transmission of blockchain |
| CN108076063A (en) * | 2017-12-25 | 2018-05-25 | 天津理工大学 | Network O＆M auditing method, server terminal and client based on block chain |
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| CN108256353B (en) * | 2018-01-11 | 2021-01-01 | 武汉斗鱼网络科技有限公司 | Data integrity checking method and device and client |
| CN108256353A (en) * | 2018-01-11 | 2018-07-06 | 武汉斗鱼网络科技有限公司 | A kind of data integrity verifying method, apparatus and client |
| CN108664221B (en) * | 2018-05-11 | 2022-04-01 | 北京奇虎科技有限公司 | Data holding certification method, device and readable storage medium |
| CN108681583A (en) * | 2018-05-11 | 2018-10-19 | 北京奇虎科技有限公司 | Data proof of possession method, apparatus and readable storage medium storing program for executing based on block chain |
| CN108664221A (en) * | 2018-05-11 | 2018-10-16 | 北京奇虎科技有限公司 | A kind of data proof of possession method, apparatus and readable storage medium storing program for executing |
| CN108881421A (en) * | 2018-06-05 | 2018-11-23 | 天津大学 | Cloud service Data Audit method based on block chain |
| CN110636087B (en) * | 2018-06-21 | 2022-04-12 | 北京果仁宝软件技术有限责任公司 | Data processing method and system based on alliance chain |
| CN110636087A (en) * | 2018-06-21 | 2019-12-31 | 北京果仁宝软件技术有限责任公司 | Data processing method and system based on alliance chain |
| CN108900505A (en) * | 2018-06-28 | 2018-11-27 | 中国科学院软件研究所 | A kind of cluster audit management-control method based on block chain technology |
| CN109471903A (en) * | 2018-10-25 | 2019-03-15 | 深圳壹账通智能科技有限公司 | Sharing method, device and the computer equipment of block chain information |
| CN110365766A (en) * | 2019-07-12 | 2019-10-22 | 全链通有限公司 | Cloud storage method, equipment and computer readable storage medium based on block chain |
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