CN109753825A - The storage of backup file, backup document down loading method and system - Google Patents
The storage of backup file, backup document down loading method and system Download PDFInfo
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- CN109753825A CN109753825A CN201910019871.0A CN201910019871A CN109753825A CN 109753825 A CN109753825 A CN 109753825A CN 201910019871 A CN201910019871 A CN 201910019871A CN 109753825 A CN109753825 A CN 109753825A
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- backup file
- backup
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- cryptographic hash
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Abstract
It include: to obtain backup file to be stored the present invention relates to a kind of storage of backup file, backup document down loading method and system, the backup file memory method；Generate the cryptographic Hash and hash index value of the backup file；The backup file is stored in IPFS network, it will be in the cryptographic Hash of the backup file and hash index value write-in Ethernet.Technical solution provided by the invention, the distributed storage of backup file may be implemented, it ensure that the authenticity of backup file, the secure storage of backup file is ensured, compared to the prior art by realizing vital document backup by third party's digital signature company, technical solution provided by the invention, it can will back up the storage of file, storage with cryptographic Hash and hash index value is deployed in respectively in the respective server network of contract parties, thus eliminate the operation link that electronic contract is saved by third party intermediary company, it is easy to operate, it is at low cost, high reliablity, high safety, user experience is good, satisfaction is high.
Description
Technical field
The present invention relates to file storage technology fields, and in particular to a kind of storage of backup file, backup document down loading method
And system.
Background technique
Block chain is the storage and computing technique of a kind of decentralization, by folding encrypted data chunk sequentially in time
The lasting not revisable record for adding and generating, and be included in each node for being stored in block chain network, so as to go
The mode collective of centralization safeguards an authentic data library.The system data in certain time is contained in each data block, and
And it generates data and is used to verify the validity of its information and links next database block.Therefore, block chain data it is anti-tamper,
There is technical advantage in terms of the transparency and decentralization.In general, Internet Intermediary mechanism passes through third party's digital signature company
To guarantee the authenticity of file (such as electronic contract).For example, each side involved in electronic contract signs to electronic contract,
Then by electronic contract storage into the storage equipment of third party's digital signature company, to guarantee the authenticity (nothing of electronic contract
Distort) and availability (backup).
When disputing on, true and available electronic contract can be obtained from digital signature company, to guarantee that electronics closes
Same legal effect.In the process, it needs some times that third party's digital signature company is gone to obtain electronic contract and needs
Pay some certifications and archive expense.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of storages of backup file, backup
Document down loading method and system, with solve in the prior art by third party's digital signature company realize vital document backup tape come
Problem cumbersome, at high cost.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of backup file memory method, comprising:
Obtain backup file to be stored；
Generate the cryptographic Hash and hash index value of the backup file；
The backup file is stored in IPFS network, the cryptographic Hash of the backup file and hash index value are written
In Ethernet.
It is preferably, described that the backup file is stored in IPFS network, comprising:
Any backup file is stored at least two block chain nodes of IPFS network.
Preferably, the method, further includes:
Judge whether the capacity of the backup file is greater than the capacity of either block chain node in the IPFS network, if
It is to cut the backup file for multiple subfiles, and by the multiple subfile as backup file to be stored.
It is preferably, described to cut the backup file for multiple subfiles, comprising:
By bundling mode, the backup file is cut as multiple subfiles；Alternatively,
Size by measure cuts the backup file for multiple subfiles.
Preferably, it is described by the multiple subfile as backup file to be stored, comprising:
The multiple subfile is compressed respectively, by compressed the multiple subfile as backup to be stored
File.
Preferably, it is described will the cryptographic Hash of the backup file and hash index value write-in Ethernet in, comprising:
It will be in the block chain node of the cryptographic Hash of the backup file and hash index value write-in Ethernet；
The method, further includes:
Record is currently written into the block height of the block chain node of cryptographic Hash and hash index value；
The block height is written in Ethernet together with the cryptographic Hash of the backup file and hash index value.
In addition, the invention also provides a kind of backup document storage systems, comprising:
Module is obtained, for obtaining backup file to be stored；
Generation module, for generating the cryptographic Hash and hash index value of the backup file；
Memory module, for the backup file to be stored in IPFS network, by the cryptographic Hash of the backup file and
Hash index value is written in Ethernet.
In addition, the invention also provides a kind of backup document down loading methods, comprising:
The hash index value and cryptographic Hash of backup file to be downloaded are obtained from Ethernet；
Corresponding backup file is searched from IPFS network according to the hash index value；
To the backup file found, verifies cryptographic Hash of the backup file in IPFS network and obtained with from Ethernet
Cryptographic Hash it is whether consistent, if unanimously, determining that the backup file is not tampered with, from the IPFS network downloading backup file,
Otherwise, it is determined that the backup file is tampered, prompt information is issued the user with.
Preferably, the hash index value and cryptographic Hash that backup file to be downloaded is obtained from Ethernet, comprising:
The block height of block chain node where the hash index value and cryptographic Hash of backup file to be downloaded, is looked into
Find corresponding hash index value and cryptographic Hash.
In addition, the invention proposes a kind of backup file download systems, comprising:
Module is obtained, for obtaining the hash index value and cryptographic Hash of backup file to be downloaded from Ethernet；
Searching module, for searching corresponding backup file from IPFS network according to the hash index value；
Correction verification module, for verifying cryptographic Hash of the backup file in IPFS network to the backup file found
It is whether consistent with the cryptographic Hash that is obtained from Ethernet, if unanimously, determining that the backup file is not tampered with, from the downloading of IPFS network
The backup file issues the user with prompt information otherwise, it is determined that the backup file is tampered.
The invention adopts the above technical scheme, at least have it is following the utility model has the advantages that
By obtaining backup file to be stored, the cryptographic Hash and hash index value of the generation backup file will be described
Backup file is stored in IPFS network, and the cryptographic Hash of the backup file and hash index value are written in Ethernet, thus
It realizes the distributed storage to backup file, when user wants to download backup file, can be obtained from Ethernet to be downloaded
The cryptographic Hash and hash index value of backup file find corresponding backup file according to the hash index value that Ethernet obtains, right
The backup file found, verify cryptographic Hash of the backup file in IPFS network and the cryptographic Hash from Ethernet acquisition whether one
It causes, if unanimously, determining that backup file is not tampered with, can downloading, to ensure that the authenticity of backup file, ensure backup
The secure storage of file, compared to the prior art by realizing vital document backup, this hair by third party's digital signature company
The technical solution of bright offer can will back up the storage of file, and the storage with cryptographic Hash and hash index value is deployed in conjunction respectively
With the operation ring in the respective server network of both sides, thus eliminated through third party intermediary company preservation electronic contract
Section, easy to operate, at low cost, high reliablity, high safety, user experience is good, satisfaction is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart for backup file memory method that one embodiment of the invention provides；
Fig. 2 is a kind of schematic block diagram for backup document storage system that one embodiment of the invention provides；
Fig. 3 is a kind of flow chart for backup document down loading method that one embodiment of the invention provides；
Fig. 4 is a kind of schematic block diagram for backup file download system that one embodiment of the invention provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Referring to Fig. 1, a kind of backup file memory method of one embodiment of the invention offer, comprising:
Step S11, backup file to be stored is obtained；
Step S12, the cryptographic Hash and hash index value of the backup file are generated；
Step S13, the backup file is stored in IPFS network, by the cryptographic Hash and Hash rope of the backup file
Draw in value write-in Ethernet.
It should be noted that the cryptographic Hash and hash index value for generating the backup file, comprising:
According to hash algorithm, the cryptographic Hash of backup file is generated；
The backup file is uploaded into IPFS network, so that the Kazakhstan of backup file described in the IPFS automatic mesh generation
Uncommon index value.
It is understood that IPFS (InterPlanetary File System, abridge IPFS, interspace file system) is
One is intended to create lasting and distributed storage and shared file the network transmission protocol.It is a kind of equity of content addressable
Hypermedia distribution protocol.Node in IPFS network will constitute a distributed file system.IPFS is point-to-point super matchmaker
Body agreement, can allow network faster, it is safer, more open.It is one towards the whole world, point-to-point distributed version file
System, it is intended to which all calculating equipment with same file system link together.
It often uploads files in IPFS network, the hash index value of a corresponding this document will be generated, for finding
The backup file of biography.
It is understood that technical solution provided in this embodiment, by obtaining backup file to be stored, described in generation
The cryptographic Hash and hash index value of backup file, the backup file is stored in IPFS network, by the backup file
In cryptographic Hash and hash index value write-in Ethernet, to realize to the distributed storage of backup file, when user want to download it is standby
When part file, the cryptographic Hash and hash index value of backup file to be downloaded can be obtained from Ethernet, is obtained according to Ethernet
The hash index value taken finds corresponding backup file, to the backup file found, verifies backup file in IPFS network
Cryptographic Hash and the cryptographic Hash that is obtained from Ethernet it is whether consistent, if unanimously, determining that backup file is not tampered with, can downloading,
To ensure that the authenticity of backup file, the secure storage of backup file has been ensured, compared to the prior art by passing through the
Tripartite's digital signature company realizes vital document backup, and technical solution provided by the invention can will back up the storage of file, with
The storage of cryptographic Hash and hash index value is deployed in respectively in the respective server network of contract parties, is thus eliminated and is passed through
Third party intermediary company saves the operation link of electronic contract, easy to operate, at low cost, high reliablity, high safety, user's body
Degree of testing is good, satisfaction is high.
It is preferably, described that the backup file is stored in IPFS network, comprising:
Any backup file is stored at least two block chain nodes of IPFS network.
It is understood that there are multiple block chain nodes in IPFS network, and backup file to be stored may
It is one, it is also possible to it is multiple, any backup file is stored at least two block chain nodes, it is ensured that a block
Backup file in chain node is lost, and is restored by another block chain node, even if powering off, natural calamity occur
Deng also still can Distortionless backup file, improve the reliability and safety of system.
Preferably, the method, further includes:
Judge whether the capacity of the backup file is greater than the capacity of either block chain node in the IPFS network, if
It is to cut the backup file for multiple subfiles, and by the multiple subfile as backup file to be stored.
It is understood that backup file is cut multiple subfiles and by the storage of multiple subfiles into IPFS network
Multiple block chain nodes in, any subfile to be at least stored at least two nodes in multiple block chain nodes with
On, it on the one hand can solve the limited problem of current block chain node capacity, on the other hand since multiple subfiles will be distinguished
It to be verified respectively when encrypting and generate cryptographic Hash, and being downloaded, be equivalent to backup file and carried out multiple encryption and verifying,
Storage security is further promoted.
It is preferably, described to cut the backup file for multiple subfiles, comprising:
By bundling mode, the backup file is cut as multiple subfiles；Alternatively,
Size by measure cuts the backup file for multiple subfiles.
Preferably, it is described by the multiple subfile as backup file to be stored, comprising:
The multiple subfile is compressed respectively, by compressed the multiple subfile as backup to be stored
File.
It is understood that the capacity when block chain node is less than the file for needing to back up, storage backup file will be unable to,
So backup file is pressed bundling mode or amount of capacity, it is compressed into multiple subfiles and stores again and backup in block chain node,
Solve the problems, such as that current block chain node capacity is limited, and be effectively ensured the backup file stored authenticity and can
By property.
Preferably, it is described will the cryptographic Hash of the backup file and hash index value write-in Ethernet in, comprising:
It will be in the block chain node of the cryptographic Hash of the backup file and hash index value write-in Ethernet；
The method, further includes:
Record is currently written into the block height of the block chain node of cryptographic Hash and hash index value；
The block height is written in Ethernet together with the cryptographic Hash of the backup file and hash index value.
It is understood that whenever the cryptographic Hash in write-once Ethernet records write-in with hash index value needs
Current block height (for example, H0005).Because of the storage mode of block chain, block chain will be updated every fixed a period of time
Node (for example, H0006, H0007, H0008 are increased on H0005), and new block data is written not comprising before
Data, so the cryptographic Hash and hash index value that need to be written before accurately being found with block height (for example, H0005).
In addition, referring to fig. 2, the invention also provides a kind of backup document storage systems 100, comprising:
Module 101 is obtained, for obtaining backup file to be stored；
Generation module 102, for generating the cryptographic Hash and hash index value of the backup file；
Memory module 103, for the backup file to be stored in IPFS network, by the cryptographic Hash of the backup file
In hash index value write-in Ethernet.
It is understood that technical solution provided in this embodiment, by obtaining backup file to be stored, described in generation
The cryptographic Hash and hash index value of backup file, the backup file is stored in IPFS network, by the backup file
In cryptographic Hash and hash index value write-in Ethernet, to realize to the distributed storage of backup file, when user want to download it is standby
When part file, the cryptographic Hash and hash index value of backup file to be downloaded can be obtained from Ethernet, is obtained according to Ethernet
The hash index value taken finds corresponding backup file, to the backup file found, verifies backup file in IPFS network
Cryptographic Hash and the cryptographic Hash that is obtained from Ethernet it is whether consistent, if unanimously, determining that backup file is not tampered with, can downloading,
To ensure that the authenticity of backup file, the secure storage of backup file has been ensured, compared to the prior art by passing through the
Tripartite's digital signature company realizes vital document backup, and technical solution provided by the invention can will back up the storage of file, with
The storage of cryptographic Hash and hash index value is deployed in respectively in the respective server network of contract parties, is thus eliminated and is passed through
Third party intermediary company saves the operation link of electronic contract, easy to operate, at low cost, high reliablity, high safety, user's body
Degree of testing is good, satisfaction is high.
In addition, the invention also provides a kind of backup document down loading methods referring to Fig. 3, comprising:
Step S21, the hash index value and cryptographic Hash of backup file to be downloaded are obtained from Ethernet；
Step S22, corresponding backup file is searched from IPFS network according to the hash index value；
Step S23, to the backup file found, verify cryptographic Hash of the backup file in IPFS network and from
Whether the cryptographic Hash for netting very much acquisition is consistent, if unanimously, determining that the backup file is not tampered with, downloads from IPFS network described standby
Part file issues the user with prompt information otherwise, it is determined that the backup file is tampered.
Preferably, the hash index value and cryptographic Hash that backup file to be downloaded is obtained from Ethernet, comprising:
The block height of block chain node where the hash index value and cryptographic Hash of backup file to be downloaded, is looked into
Find corresponding hash index value and cryptographic Hash.
It is understood that technical solution provided in this embodiment, by obtaining backup file to be stored, described in generation
The cryptographic Hash and hash index value of backup file, the backup file is stored in IPFS network, by the backup file
In cryptographic Hash and hash index value write-in Ethernet, to realize to the distributed storage of backup file, when user want to download it is standby
When part file, the cryptographic Hash and hash index value of backup file to be downloaded can be obtained from Ethernet, is obtained according to Ethernet
The hash index value taken finds corresponding backup file, to the backup file found, verifies backup file in IPFS network
Cryptographic Hash and the cryptographic Hash that is obtained from Ethernet it is whether consistent, if unanimously, determining that backup file is not tampered with, can downloading,
To ensure that the authenticity of backup file, the secure storage of backup file has been ensured, compared to the prior art by passing through the
Tripartite's digital signature company realizes vital document backup, and technical solution provided by the invention can will back up the storage of file, with
The storage of cryptographic Hash and hash index value is deployed in respectively in the respective server network of contract parties, is thus eliminated and is passed through
Third party intermediary company saves the operation link of electronic contract, easy to operate, at low cost, high reliablity, high safety, user's body
Degree of testing is good, satisfaction is high.
In addition, referring to fig. 4, the invention proposes a kind of backup file download systems 200, comprising:
Module 201 is obtained, for obtaining the hash index value and cryptographic Hash of backup file to be downloaded from Ethernet；
Searching module 202, for searching corresponding backup file from IPFS network according to the hash index value；
Correction verification module 203, for verifying Hash of the backup file in IPFS network to the backup file found
Whether value and the cryptographic Hash obtained from Ethernet are consistent, if unanimously, determining that the backup file is not tampered with, under IPFS network
The backup file is carried, otherwise, it is determined that the backup file is tampered, issues the user with prompt information.
It is understood that technical solution provided in this embodiment, by obtaining backup file to be stored, described in generation
The cryptographic Hash and hash index value of backup file, the backup file is stored in IPFS network, by the backup file
In cryptographic Hash and hash index value write-in Ethernet, to realize to the distributed storage of backup file, when user want to download it is standby
When part file, the cryptographic Hash and hash index value of backup file to be downloaded can be obtained from Ethernet, is obtained according to Ethernet
The hash index value taken finds corresponding backup file, to the backup file found, verifies backup file in IPFS network
Cryptographic Hash and the cryptographic Hash that is obtained from Ethernet it is whether consistent, if unanimously, determining that backup file is not tampered with, can downloading,
To ensure that the authenticity of backup file, the secure storage of backup file has been ensured, compared to the prior art by passing through the
Tripartite's digital signature company realizes vital document backup, and technical solution provided by the invention can will back up the storage of file, with
The storage of cryptographic Hash and hash index value is deployed in respectively in the respective server network of contract parties, is thus eliminated and is passed through
Third party intermediary company saves the operation link of electronic contract, easy to operate, at low cost, high reliablity, high safety, user's body
Degree of testing is good, satisfaction is high.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Term " multiple " refers to
Two or more, unless otherwise restricted clearly.
Claims (10)
1. a kind of backup file memory method characterized by comprising
Obtain backup file to be stored；
Generate the cryptographic Hash and hash index value of the backup file；
The backup file is stored in IPFS network, ether is written into the cryptographic Hash of the backup file and hash index value
In net.
2. the method according to claim 1, wherein described be stored in the backup file in IPFS network,
Include:
Any backup file is stored at least two block chain nodes of IPFS network.
3. according to the method described in claim 2, it is characterized by further comprising:
Judge whether the capacity of the backup file is greater than the capacity of either block chain node in the IPFS network, if so, will
The backup file cutting is multiple subfiles, and by the multiple subfile as backup file to be stored.
4. according to the method described in claim 3, it is characterized in that, described cut the backup file for multiple subfiles,
Include:
By bundling mode, the backup file is cut as multiple subfiles；Alternatively,
Size by measure cuts the backup file for multiple subfiles.
5. according to the method described in claim 3, it is characterized in that, it is described by the multiple subfile as backup to be stored
File, comprising:
The multiple subfile is compressed respectively, by compressed the multiple subfile as backup text to be stored
Part.
6. the method according to claim 1, wherein the cryptographic Hash and hash index by the backup file
In value write-in Ethernet, comprising:
It will be in the block chain node of the cryptographic Hash of the backup file and hash index value write-in Ethernet；
The method, further includes:
Record is currently written into the block height of the block chain node of cryptographic Hash and hash index value；
The block height is written in Ethernet together with the cryptographic Hash of the backup file and hash index value.
7. a kind of backup document storage system characterized by comprising
Module is obtained, for obtaining backup file to be stored；
Generation module, for generating the cryptographic Hash and hash index value of the backup file；
Memory module, for the backup file to be stored in IPFS network, by the cryptographic Hash and Hash of the backup file
Index value is written in Ethernet.
8. a kind of backup document down loading method characterized by comprising
The hash index value and cryptographic Hash of backup file to be downloaded are obtained from Ethernet；
Corresponding backup file is searched from IPFS network according to the hash index value；
To the backup file found, verify cryptographic Hash of the backup file in IPFS network with from the Kazakhstan of Ethernet acquisition
Whether uncommon value is consistent, if unanimously, determining that the backup file is not tampered with, downloads the backup file from IPFS network, otherwise,
Determine that the backup file is tampered, issues the user with prompt information.
9. according to the method described in claim 8, it is characterized in that, described obtain backup file to be downloaded from Ethernet
Hash index value and cryptographic Hash, comprising:
The block height of block chain node where the hash index value and cryptographic Hash of backup file to be downloaded, finds
Corresponding hash index value and cryptographic Hash.
10. a kind of backup file download system characterized by comprising
Module is obtained, for obtaining the hash index value and cryptographic Hash of backup file to be downloaded from Ethernet；
Searching module, for searching corresponding backup file from IPFS network according to the hash index value；
Correction verification module, for the backup file found, verify cryptographic Hash of the backup file in IPFS network and from
Whether the cryptographic Hash that Ethernet obtains is consistent, if unanimously, determining that the backup file is not tampered with, described in the downloading of IPFS network
Backup file issues the user with prompt information otherwise, it is determined that the backup file is tampered.
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| CN112035422B (en) * | 2020-08-20 | 2022-03-25 | 郑州信大捷安信息技术股份有限公司 | Distributed real-time data synchronization method, node equipment and system based on IPFS |
| CN112035422A (en) * | 2020-08-20 | 2020-12-04 | 郑州信大捷安信息技术股份有限公司 | Distributed real-time data synchronization method, node equipment and system based on IPFS |
| CN115280717A (en) * | 2021-01-11 | 2022-11-01 | 微福斯有限责任公司 | Block chain auditing system and method |
| CN112764974A (en) * | 2021-01-28 | 2021-05-07 | 河北研云科技有限公司 | Information asset online management method and system |
| CN112764974B (en) * | 2021-01-28 | 2023-12-29 | 河北研云科技有限公司 | Information asset online management method and system |
| CN112883028A (en) * | 2021-02-09 | 2021-06-01 | 浙江数秦科技有限公司 | Medical data credible storage and management system based on block chain |
| CN112965859A (en) * | 2021-03-09 | 2021-06-15 | 上海焜耀网络科技有限公司 | Data disaster recovery method and equipment based on IPFS cluster |
| CN113360953A (en) * | 2021-06-03 | 2021-09-07 | 上海和数软件有限公司 | File distributed storage management method and system based on IPFS and block chain |
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