CN110365766A - Cloud storage method, equipment and computer readable storage medium based on block chain - Google Patents
Cloud storage method, equipment and computer readable storage medium based on block chain Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
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Abstract
The embodiment of the present invention provides a kind of cloud storage method, equipment and computer readable storage medium based on block chain.Data to be stored are sent to cloud storage node by user node by the embodiment of the present invention, so that the cloud storage node calculates the first cryptographic Hash and size information of the data, and first cryptographic Hash and size information are sent to user node, when user node determines that first cryptographic Hash is consistent with the second cryptographic Hash of the data that the user node precomputes oneself, determine that the data are properly received by cloud storage node, during effective storage of the data in the cloud storage node, the user node can read the data from the cloud storage node, if the data that the cloud storage node is returned to the user node are incorrect, then the user node sends compensation requests to the corresponding verifying node of cloud storage node, when so that the data of storage being abandoned or distorted by the cloud storage node, the user node can recover.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to a kind of cloud storage method, equipment based on block chain
And computer readable storage medium.
Background technique
Cloud storage is a kind of mode of online on-line storage (English: Cloud storage), i.e., data is stored in usually
By more virtual servers of third party's trustship, and on non-exclusive server.The number of trustship (hosting) company operation large size
According to center, the people of data storage trustship is needed, then through the mode to its purchase or lease memory space, to meet data storage
Demand.Data center operator prepares the resource of Storage Virtualization according to the demand of user, in rear end, and by it to store money
The mode in source pond (storage pool) provides, and client can voluntarily store file or object using this memory resource pool.It is real
On border, these resources are possibly distributed on numerous server hosts.
But if the data of storage are abandoned or distorted by cloud storage service provider, user would become hard to recover.
Summary of the invention
The embodiment of the present invention provides a kind of cloud storage method, equipment and computer readable storage medium based on block chain,
So that the user node can recover when the data of storage are abandoned or distorted by the cloud storage node.
In a first aspect, the embodiment of the present invention provides a kind of cloud storage method based on block chain, comprising:
User node obtains the IP address of cloud storage node from block chain account book；
The user node is according to the IP address of the cloud storage node, by the user by way of point-to-point P2P
Node data to be stored are sent to the cloud storage node；
The user node receives the first cryptographic Hash and the data of data that the cloud storage node is sent
Size information；
If the user node determines the number that the first cryptographic Hash of the data and the user node precalculate
According to the second cryptographic Hash it is consistent, it is determined that the data are properly received by the cloud storage node；
During effective storage of the data in the cloud storage node, the user node is to the cloud storage
Node sends the second cryptographic Hash of the data, so that second cryptographic Hash of the cloud storage node according to the data, to institute
It states user node and returns to the data that the user node stores in the cloud storage node；
If the data that the cloud storage node is returned to the user node are incorrect, the user node is to the cloud
The corresponding verifying node of memory node sends compensation requests.
Second aspect, the embodiment of the present invention provide a kind of cloud storage method based on block chain, comprising:
Cloud storage node receives the data to be stored that user node is sent；
The cloud storage node sends the first cryptographic Hash of the data and the size of the data to the user node
Information；
During effective storage of the data in the cloud storage node, the cloud storage node receives the use
Second cryptographic Hash of the data that family node is sent；
If the cloud storage node determines that the first cryptographic Hash of the data is consistent with the second cryptographic Hash of the data,
The data that the user node stores in the cloud storage node are sent to the user node.
The third aspect, the embodiment of the present invention provide a kind of cloud storage method based on block chain, comprising:
It verifies node and receives the compensation requests that user node is sent, the compensation requests include the user node described
Second cryptographic Hash of the data stored on cloud storage node；
The verifying node sends the second cryptographic Hash of the data to the cloud storage node, so that the cloud storage section
Point returns to the user node to the verifying node and deposits in the cloud storage node according to the second cryptographic Hash of the data
The data of storage；
If data and the user node that the cloud storage node returns sent to the cloud storage node wait store
Data it is different, then the verifying node is to user node offer reparation.
Fourth aspect, the embodiment of the present invention provide a kind of user node, comprising:
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as being executed by the processor following
Operation:
The IP address of cloud storage node is obtained from block chain account book；
According to the IP address of the cloud storage node, the communication interface in a manner of point-to-point P2P by the use
Node data to be stored in family are sent to the cloud storage node；
By the communication interface receive the data that the cloud storage node is sent the first cryptographic Hash and the number
According to size information；
If it is determined that the second Hash of the data that the first cryptographic Hash of the data and the user node precalculate
Value is consistent, it is determined that the data are properly received by the cloud storage node；
During effective storage of the data in the cloud storage node, by the communication interface to the cloud
Memory node sends the second cryptographic Hash of the data, so that second cryptographic Hash of the cloud storage node according to the data,
The data that the user node stores in the cloud storage node are returned to the user node；
If the data that the cloud storage node is returned to the user node are incorrect, pass through the communication interface to institute
It states the corresponding verifying node of cloud storage node and sends compensation requests.
5th aspect, the embodiment of the present invention provide a kind of cloud storage node, comprising:
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as being executed by the processor following
Operation:
The data to be stored that user node is sent are received by the communication interface；
By the communication interface to the user node send the data the first cryptographic Hash and the data it is big
Small information；
During effective storage of the data in the cloud storage node, received by the communication interface described in
Second cryptographic Hash of the data that user node is sent；
If it is determined that the first cryptographic Hash of the data is consistent with the second cryptographic Hash of the data, then connect by the communication
The data that the user node stores in the cloud storage node are sent to the user node by mouth.
6th aspect, the embodiment of the present invention provide a kind of verifying node, comprising:
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as being executed by the processor following
Operation:
The compensation requests that user node is sent are received by the communication interface, the compensation requests include user's section
Second cryptographic Hash of the data that point stores on the cloud storage node；
The second cryptographic Hash for sending the data to the cloud storage node by the communication interface, so that the cloud is deposited
Node is stored up according to the second cryptographic Hash of the data, returns to the user node in the cloud storage node to the verifying node
The data of middle storage；
If data and the user node that the cloud storage node returns sent to the cloud storage node wait store
Data it is different, then provide reparation to the user node.
7th aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program,
The computer program is executed by processor to realize method described in first aspect, second aspect or the third aspect.
Cloud storage method, equipment and computer readable storage medium provided in an embodiment of the present invention based on block chain leads to
It crosses user node and data to be stored is sent to cloud storage node, so that the cloud storage node calculates the first Kazakhstan of the data
Uncommon value and size information, and first cryptographic Hash and size information are sent to user node, when user node determine this first
When cryptographic Hash is consistent with the second cryptographic Hash of the data that the user node precomputes oneself, determine the data by cloud
Memory node is properly received, and during effective storage of the data in the cloud storage node, which can be from this
The data are read in cloud storage node, if the data that the cloud storage node is returned to the user node are incorrect, the user
Node sends compensation requests to the corresponding verifying node of cloud storage node so that the cloud storage node data of storage are abandoned or
When distorting, which can recover.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of application scenarios provided in an embodiment of the present invention；
Fig. 2 is the cloud storage method flow diagram provided in an embodiment of the present invention based on block chain；
Fig. 3 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain；
Fig. 4 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain；
Fig. 5 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain；
Fig. 6 is the structural schematic diagram of user node provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of cloud storage node provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of verifying node provided in an embodiment of the present invention.
Through the above attached drawings, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Cloud storage method provided in an embodiment of the present invention based on block chain, can be adapted for communication system shown in FIG. 1.
As shown in Figure 1, the communication system includes: user node, accounting nodes, verifying node and cloud storage node, wherein Yong Hujie
Point, accounting nodes, verifying node and cloud storage node are the participation nodes in block chain network.It is appreciated that only show herein
Meaning property explanation, does not limit the node number and type in the block chain network.Wherein, cloud storage node can be one or
It is multiple cloud servers, cloud server i.e. Cloud Server, is a server cluster, there are many servers, and logical
Computer architecture is similar, and the composition of cloud server includes processor, hard disk, memory, system bus etc..User node tool
Body can be user terminal, for example, smart phone, tablet computer, personal computer etc..
Cloud storage method provided in an embodiment of the present invention based on block chain, it is intended to which the technology as above for solving the prior art is asked
Topic.
How to be solved with technical solution of the specifically embodiment to technical solution of the present invention and the application below above-mentioned
Technical problem is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.Below in conjunction with attached drawing, the embodiment of the present invention is described.
Fig. 2 is the cloud storage method flow diagram provided in an embodiment of the present invention based on block chain.The embodiment of the present invention is directed to
The technical problem as above of the prior art provides the cloud storage method based on block chain, and specific step is as follows for this method:
Step 201, user node obtain the IP address of cloud storage node from block chain account book.
In the present embodiment, cloud storage node can in real time or periodically monitor the big of the idle storage space of oneself
It is small, and broadcast message is sent in block chain network, which can specifically include the block chain mark of the cloud storage node
Know, the size of the idle storage space of the cloud storage node, the data of the cloud storage node store monovalent information (for example, 1 yuan/
The G month), the IP address of the cloud storage node, the cloud storage node occur storage mistake when reparation information (for example, reparation number
At least one of according to n times of storage expense).
Specifically, after the cloud storage node can sign to the broadcast message using the private key of oneself, it will be wide after signature
Message is broadcast to be broadcast in the block chain network.Alternatively, the cloud storage node can become in the size of its idle storage space
It when change, is signed using the private key of oneself to the broadcast message, and by the broadcast after the signature to the area
In block chain network.
After the accounting nodes in the block chain network receive the broadcast message of the cloud storage node, which can be deposited
The broadcast message for storing up node is stored into block chain account book.It is appreciated that the block chain account book can record multiple cloud storage nodes
Broadcast message.
When user node is needed the storage of oneself data to cloud storage node, which can pass through the book keeping operation
Querying node block chain account book, selects a cloud storage node from the block chain account book, which can be recently
The cloud storage node of broadcast message, alternatively, the cloud storage node can be the maximum cloud storage node of idle storage space.
Herein, the cloud storage node of user node selection is not defined.Specifically, when user node is from block chain account book
After selecting a cloud storage node, the identification information of the cloud storage node is obtained from the block chain account book, for example, the cloud storage
The block chain of node identifies or IP address.In other embodiments, which selects a cloud to deposit from block chain account book
After storing up node, size, the cloud storage of the idle storage space of the cloud storage node can also be obtained from the block chain account book
The data of node store monovalent information, at least one of reparation information when storing wrong occurs for the cloud storage node.
Step 202, the user node, will by way of point-to-point P2P according to the IP address of the cloud storage node
User node data to be stored are sent to the cloud storage node.
The user node determines oneself data to be stored, and according to the block chain of cloud storage node mark or IP
The data to be stored are sent to the cloud storage section in the mode of point-to-point (peer to peer lending, P2P) by location
Point.In addition, the user node can also precalculate the cryptographic Hash of the data to be stored.
Step 203, the user node receive the first cryptographic Hash and the institute for the data that the cloud storage node is sent
State the size information of data.
When the cloud storage node receives the data wait store of user node transmission, the data to be stored are calculated
Cryptographic Hash, herein, by the cloud storage node be calculated should the cryptographic Hash of data to be stored be denoted as the first cryptographic Hash H1,
The cryptographic Hash for the data that should be to be stored that the user node precalculates is denoted as the second cryptographic Hash H2.Further, the cloud
The size information of first cryptographic Hash of the data to be stored and data that should be to be stored is sent to user section by memory node
Point.Specifically, the cloud storage node can using the private key data to be stored to this of oneself the first cryptographic Hash and should be wait deposit
The size information of the data of storage is signed, and by after signature the first cryptographic Hash and should data be stored size information with
The mode of broadcast is published in the block chain network.
When the user node receives the first cryptographic Hash after signing and should use when the size information of the data stored
The public key of the cloud storage node verifies the signature, and after being verified, which compares the data to be stored
First cryptographic Hash H1 and the second cryptographic Hash H2 for being somebody's turn to do data to be stored.
If step 204, the user node determine that the first cryptographic Hash of the data and the user node precalculate
The data the second cryptographic Hash it is consistent, it is determined that the data are properly received by the cloud storage node.
If the user node determines the first cryptographic Hash H1 of the data to be stored and is somebody's turn to do the second of data to be stored and breathes out
Uncommon value H2 is identical, it is determined that the data that the user node is uploaded to the cloud storage node are correctly connect by the cloud storage node
It receives.
Step 205, during effective storage of the data in the cloud storage node, the user node is to institute
The second cryptographic Hash that cloud storage node sends the data is stated, so that second Hash of the cloud storage node according to the data
Value, Xiang Suoshu user node return to the data that the user node stores in the cloud storage node.
For example, when to determine that it is uploaded to the data of the cloud storage node correct by the cloud storage node for the user node
When reception, which produces a record of transferring accounts, which may include that the user node uses memory space
The data that duration information, the i.e. user node upload need the temporal information stored in the cloud storage node.Specifically, the use
Family node can sign to the record of transferring accounts using the private key of oneself, and the record of transferring accounts after signature is broadcast to the block
In chain network, transfer accounts to complete block chain.It can also be deposited using the cloud including expense of transferring accounts in record in addition, this is transferred accounts
Expense needed for storing up the memory space of node.
If user node is within a preset time, do not transfer accounts in the block chain network, alternatively, depositing when data
When storing up period expiration, which does not continue to transfer accounts, then the cloud storage node can delete the number of user node upload
According in this case, which can not be liable for breach of contract.
Within the valid period for transferring accounts expense of the user node, i.e., the data of user node upload are in the cloud storage section
During effective storage in point, which can read data from the cloud storage node at any time.Specifically, the user
Node can send the of the data to the cloud storage node in the mode of point-to-point (peer to peer lending, P2P)
The cryptographic Hash for the data that should be to be stored that two cryptographic Hash H2, the i.e. user node are precalculated.The cloud storage node receives
When the second cryptographic Hash H2 of the data sent to the user node, according to second cryptographic Hash H2, obtains the user node and deposit
The initial data of storage, and the initial data that the user node stores is sent to the user node.
If the data that step 206, the cloud storage node are returned to the user node are incorrect, the user node
Compensation requests are sent to the corresponding verifying node of the cloud storage node.
When the user node receives the data of cloud storage node return, which can calculate the data
Cryptographic Hash illustrates that the cloud storage node is returned to the user node if the cryptographic Hash and second cryptographic Hash H2 are inconsistent
Data it is incorrect, then the user node can initiate compensation requests in the block chain network.Specifically, the user node can
To send compensation requests to the corresponding verifying node of the cloud storage node.
In other embodiments, the method also includes: if the data in the cloud storage node effectively depositing
During storage, the user node accesses the cloud storage node failure, then the user node is to the cloud storage node pair
The verifying node answered sends compensation requests.
In some embodiments, which can be any node in the block chain network.
In order to avoid the malicious behaviors of nodes application reparation in the block chain network, when the verifying node receives user node
When compensation requests, which can obtain the cryptographic Hash of data to be compensated from the user node, for example, the user node is pre-
The second cryptographic Hash H2 being first calculated.Alternatively, second cryptographic Hash H2 can be carried in the compensation requests.Further, should
Verifying node can send second cryptographic Hash H2 to the cloud storage node by way of P2P.The cloud storage node receives
When the second cryptographic Hash H2 that the verifying node is sent, according to second cryptographic Hash H2, the original number of user node storage is obtained
According to, and the initial data that the user node stores is sent to the verifying node.The verifying node can further judge the cloud
Whether the data that the data and the user node that memory node returns are uploaded to the cloud storage node are identical, if it is different, then should
Verifying node determines the cloud storage node, and there are mistakes, and the compensation requests of the user node are true, and provide to the user node
Reparation.
That is, in the present embodiment, verifying node verifies the compensation requests of user node, if verifying at
Function, then the verifying node from trend, compensated by the user node, without the cloud storage node verification compensation requests.As
A kind of feasible implementation, the user node, the cloud storage node and the verifying node can sign intelligent contract in advance, when
When storage and promise breaking occur for the cloud storage node, the content of the intelligence contract is executed by the verifying node and carries out the behaviour such as transfer accounts
Make.
In the present embodiment, need cloud storage node or verifying node that there is enough solvency margins.The user node exists
When selecting cloud storage node, the solvency margin of cloud storage node can be checked, and according to the solvency margin of the cloud storage node come really
It is fixed whether to select the cloud storage node.
It is understood that the user node can treat storage in advance in order to avoid the leakage of data of user node
Data are encrypted, and encrypted data are uploaded in the cloud storage node.
Data to be stored are sent to cloud storage node by user node by the embodiment of the present invention, so that the cloud storage section
Point calculates the first cryptographic Hash and size information of the data, and first cryptographic Hash and size information are sent to user's section
Point, when user node determines the second cryptographic Hash one of the data that first cryptographic Hash and the user node precompute oneself
When cause, determine that the data are properly received by cloud storage node, in effective storage period of the data in the cloud storage node
In, which can read the data from the cloud storage node, if the cloud storage node is returned to the user node
The data returned are incorrect, then the user node sends compensation requests to the corresponding verifying node of cloud storage node, so that the cloud is deposited
When the data of storage are abandoned or distorted by storage node, which can recover.
Fig. 3 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain.In above-described embodiment
On the basis of, the cloud storage method provided in this embodiment based on block chain specifically comprises the following steps:
Step 301, user node obtain the IP address of cloud storage node from block chain account book.
Step 301 is consistent with the implementation and concrete principle of step 201 as described above, and details are not described herein again.
Step 302, the user node, will by way of point-to-point P2P according to the IP address of the cloud storage node
User node data to be stored are sent to the cloud storage node.
Step 302 is consistent with the implementation and concrete principle of step 202 as described above, and details are not described herein again.
Step 303, the user node receive the first cryptographic Hash and the institute for the data that the cloud storage node is sent
State the size information of data.
Step 303 is consistent with the implementation and concrete principle of step 203 as described above, and details are not described herein again.
If step 304, the user node determine that the first cryptographic Hash of the data and the user node precalculate
The data the second cryptographic Hash it is consistent, it is determined that the data are properly received by the cloud storage node.
Step 304 is consistent with the implementation and concrete principle of step 204 as described above, and details are not described herein again.
Step 305, the user node broadcast record of transferring accounts in block chain network, and the record of transferring accounts includes the number
According to the temporal information stored in the cloud storage node.
When the user node determines that it is uploaded to the data of the cloud storage node and has been properly received by the cloud storage node
When, which produces a record of transferring accounts, which may include the duration that the user node uses memory space
The data that information, the i.e. user node upload need the temporal information stored in the cloud storage node.Specifically, the user saves
Point can sign to the record of transferring accounts using the private key of oneself, and the record of transferring accounts after signature is broadcast to the block link network
In network, transfer accounts to complete block chain.
Step 306, during effective storage of the data in the cloud storage node, the user node is to institute
The second cryptographic Hash that cloud storage node sends the data is stated, so that second Hash of the cloud storage node according to the data
Value, Xiang Suoshu user node return to the data that the user node stores in the cloud storage node.
Step 306 is consistent with the implementation and concrete principle of step 206 as described above, and details are not described herein again.
If the data that step 307, the cloud storage node are returned to the user node are incorrect, the user node
Compensation requests are sent to the corresponding verifying node of the cloud storage node.
Step 307 is consistent with the implementation and concrete principle of step 207 as described above, and details are not described herein again.
Data to be stored are sent to cloud storage node by user node by the embodiment of the present invention, so that the cloud storage section
Point calculates the first cryptographic Hash and size information of the data, and first cryptographic Hash and size information are sent to user's section
Point, when user node determines the second cryptographic Hash one of the data that first cryptographic Hash and the user node precompute oneself
When cause, determine that the data are properly received by cloud storage node, in effective storage period of the data in the cloud storage node
In, which can read the data from the cloud storage node, if the cloud storage node is returned to the user node
The data returned are incorrect, then the user node sends compensation requests to the corresponding verifying node of cloud storage node, so that the cloud is deposited
When the data of storage are abandoned or distorted by storage node, which can recover.
Fig. 4 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain.The present embodiment provides
The cloud storage method based on block chain specifically comprise the following steps:
Step 401, cloud storage node receive the data to be stored that user node is sent.
In other embodiments, it is described before the cloud storage node receives the data to be stored that user node is sent
Method further include: the cloud storage node is by the idle storage space size of the cloud storage node, the cloud storage node
Block chain identification information, the cloud storage node IP address information be broadcast in block chain network.
In the present embodiment, cloud storage node can in real time or periodically monitor the big of the idle storage space of oneself
It is small, and broadcast message is sent in block chain network, which can specifically include the block chain mark of the cloud storage node
Know, the size of the idle storage space of the cloud storage node, the data of the cloud storage node store monovalent information (for example, 1 yuan/
The G month), the IP address of the cloud storage node, the cloud storage node occur storage mistake when reparation information (for example, reparation number
At least one of according to n times of storage expense).
After the accounting nodes in the block chain network receive the broadcast message of the cloud storage node, which can be deposited
The broadcast message for storing up node is stored into block chain account book.It is appreciated that the block chain account book can record multiple cloud storage nodes
Broadcast message.
When user node is needed the storage of oneself data to cloud storage node, which can pass through the book keeping operation
Querying node block chain account book, selects a cloud storage node from the block chain account book, which can be recently
The cloud storage node of broadcast message, alternatively, the cloud storage node can be the maximum cloud storage node of idle storage space.
Herein, the cloud storage node of user node selection is not defined.Specifically, when user node is from block chain account book
After selecting a cloud storage node, the identification information of the cloud storage node is obtained from the block chain account book, for example, the cloud storage
The block chain of node identifies or IP address.
The user node determines oneself data to be stored, and according to the block chain of cloud storage node mark or IP
The data to be stored are sent to the cloud storage node by location.The cloud storage node receive the user node transmission wait store
Data.
Step 402, the cloud storage node to the user node send the data the first cryptographic Hash and the number
According to size information.
When the cloud storage node receives the data wait store of user node transmission, the data to be stored are calculated
Cryptographic Hash, herein, by the cloud storage node be calculated should the cryptographic Hash of data to be stored be denoted as the first cryptographic Hash H1,
The cryptographic Hash for the data that should be to be stored that the user node precalculates is denoted as the second cryptographic Hash H2.Further, the cloud
The size information of first cryptographic Hash of the data to be stored and data that should be to be stored is sent to user section by memory node
Point.
Step 403, during effective storage of the data in the cloud storage node, the cloud storage node connects
Receive the second cryptographic Hash of the data that the user node is sent.
Within the valid period for transferring accounts expense of the user node, i.e., the data of user node upload are in the cloud storage section
During effective storage in point, which can read data from the cloud storage node at any time.Specifically, the user
Node can send the of the data to the cloud storage node in the mode of point-to-point (peer to peer lending, P2P)
The cryptographic Hash for the data that should be to be stored that two cryptographic Hash H2, the i.e. user node are precalculated.
If step 404, the cloud storage node determine the first cryptographic Hash of the data and the second Hash of the data
Value is consistent, then the data that the user node stores in the cloud storage node is sent to the user node.
When the cloud storage node receives the second cryptographic Hash H2 of the data of user node transmission, compare the data
The first cryptographic Hash H1 of second cryptographic Hash H2 and the data, if the first Hash of the second cryptographic Hash H2 of the data and the data
Value H1 is consistent, then according to second cryptographic Hash H2, obtains the initial data of user node storage, and the user node is stored
Initial data be sent to the user node.
Data to be stored are sent to cloud storage node by user node by the embodiment of the present invention, so that the cloud storage section
Point calculates the first cryptographic Hash and size information of the data, and first cryptographic Hash and size information are sent to user's section
Point, when user node determines the second cryptographic Hash one of the data that first cryptographic Hash and the user node precompute oneself
When cause, determine that the data are properly received by cloud storage node, in effective storage period of the data in the cloud storage node
In, which can read the data from the cloud storage node, if the cloud storage node is returned to the user node
The data returned are incorrect, then the user node sends compensation requests to the corresponding verifying node of cloud storage node, so that the cloud is deposited
When the data of storage are abandoned or distorted by storage node, which can recover.
Fig. 5 be another embodiment of the present invention provides the cloud storage method flow diagram based on block chain.The present embodiment provides
The cloud storage method based on block chain specifically comprise the following steps:
Step 501, verifying node receive the compensation requests that user node is sent, and the compensation requests include user's section
Second cryptographic Hash of the data that point stores on the cloud storage node.
When the user node receives the data of cloud storage node return, which can calculate the data
Cryptographic Hash illustrates that the cloud storage node is returned to the user node if the cryptographic Hash and second cryptographic Hash H2 are inconsistent
Data it is incorrect, then the user node can initiate compensation requests in the block chain network.May include in the compensation requests
Second cryptographic Hash H2 of the data.It, can be from the compensation requests when the verifying node receives the compensation requests of user node
Obtain the second cryptographic Hash H2 of the data.
Step 502, the verifying node send the second cryptographic Hash of the data to the cloud storage node, so that described
Cloud storage node returns to the user node in the cloud storage to the verifying node according to the second cryptographic Hash of the data
The data stored in node.
The verifying node can send second cryptographic Hash H2 to the cloud storage node by way of P2P.The cloud storage
When node receives the second cryptographic Hash H2 of verifying node transmission, according to second cryptographic Hash H2, obtains the user node and deposit
The initial data of storage, and the initial data that the user node stores is sent to the verifying node.
If data and the user node that step 503, the cloud storage node return are sent to the cloud storage node
Data to be stored it is different, then the verifying node is to user node offer reparation.
The verifying node can further judge that the data that the cloud storage node returns and the user node are uploaded to the cloud
Whether the data of memory node are identical, if it is different, then the verifying node determines the cloud storage node, there are mistake, user sections
The compensation requests of point are true, and provide reparation to the user node.
Data to be stored are sent to cloud storage node by user node by the embodiment of the present invention, so that the cloud storage section
Point calculates the first cryptographic Hash and size information of the data, and first cryptographic Hash and size information are sent to user's section
Point, when user node determines the second cryptographic Hash one of the data that first cryptographic Hash and the user node precompute oneself
When cause, determine that the data are properly received by cloud storage node, in effective storage period of the data in the cloud storage node
In, which can read the data from the cloud storage node, if the cloud storage node is returned to the user node
The data returned are incorrect, then the user node sends compensation requests to the corresponding verifying node of cloud storage node, so that the cloud is deposited
When the data of storage are abandoned or distorted by storage node, which can recover.
Fig. 6 is the structural schematic diagram of user node provided in an embodiment of the present invention.User's section provided in an embodiment of the present invention
Point can execute the process flow that the cloud storage embodiment of the method based on block chain provides, as shown in fig. 6, user node 60 wraps
It includes: memory 61, processor 62, communication interface 63 and computer program；Wherein, the computer program is stored in described deposit
It in reservoir, and is configured as executing following operation by the processor: with obtaining the IP of cloud storage node from block chain account book
Location；According to the IP address of the cloud storage node, the communication interface in a manner of point-to-point P2P by the user node
Data to be stored are sent to the cloud storage node；It is received described in the cloud storage node transmission by the communication interface
First cryptographic Hash of data and the size information of the data；If it is determined that the first cryptographic Hash and the user node of the data
Second cryptographic Hash of the data precalculated is consistent, it is determined that the data are properly received by the cloud storage node；
During effective storage of the data in the cloud storage node, by the communication interface to the cloud storage node
The second cryptographic Hash of the data is sent, so that second cryptographic Hash of the cloud storage node according to the data, to the use
Family node returns to the data that the user node stores in the cloud storage node；If the cloud storage node is to the user
The data that node returns are incorrect, then send reparation to the corresponding verifying node of the cloud storage node by the communication interface
Request.
Optionally, the processor is also used to: if during effective storage of the data in the cloud storage node
Interior, the user node accesses the cloud storage node failure, then corresponding to the cloud storage node by the communication interface
Verifying node send compensation requests.
Optionally, it after the processor determines that the data are properly received by the cloud storage node, is also used to: logical
It crosses the communication interface and broadcasts record of transferring accounts in block chain network, the record of transferring accounts includes the data in the cloud storage
The temporal information stored in node.
The user node of embodiment illustrated in fig. 6 can be used for executing the technical solution of above method embodiment, realization principle
Similar with technical effect, details are not described herein again.
Fig. 7 is the structural schematic diagram of cloud storage node provided in an embodiment of the present invention.Cloud provided in an embodiment of the present invention is deposited
Storage node can execute the process flow of the offer of the cloud storage embodiment of the method based on block chain, as shown in fig. 7, cloud storage node
70 include: memory 71, processor 72, computer program and communication interface 73；Wherein, computer program is stored in memory 71
In, and be configured as executing following operation by processor 72: by communication interface reception user node transmission wait store
Data；The first cryptographic Hash of the data and the size of the data are sent to the user node by the communication interface
Information；During effective storage of the data in the cloud storage node, passes through the communication interface and receive the use
Second cryptographic Hash of the data that family node is sent；If it is determined that the first cryptographic Hash of the data and the second of the data breathe out
Uncommon value is consistent, then the data that the user node stores in the cloud storage node is sent to institute by the communication interface
State user node.
Optionally, before the processor receives the data to be stored that user node is sent by the communication interface,
Further include: by the communication interface by the idle storage space size of the cloud storage node, the area of the cloud storage node
Block chain identification information, the cloud storage node IP address information be broadcast in block chain network.
The cloud storage node of embodiment illustrated in fig. 7 can be used for executing the technical solution of above method embodiment, realize former
Reason is similar with technical effect, and details are not described herein again.
Fig. 8 is the structural schematic diagram of verifying node provided in an embodiment of the present invention.Verifying section provided in an embodiment of the present invention
Point can execute the process flow that the cloud storage embodiment of the method based on block chain provides, as shown in figure 8, verifying node 80 wraps
It includes: memory 81, processor 82, computer program and communication interface 83；Wherein, computer program is stored in memory 81,
And it is configured as executing following operation by processor 82: the compensation requests that user node is sent is received by the communication interface,
The compensation requests include the second cryptographic Hash of the data that the user node stores on the cloud storage node；By described
Communication interface sends the second cryptographic Hash of the data to the cloud storage node, so that the cloud storage node is according to the number
According to the second cryptographic Hash, return to the data that the user node stores in the cloud storage node to the verifying node；If
The data to be stored that the data that the cloud storage node returns and the user node are sent to the cloud storage node are different,
Then reparation is provided to the user node.
The verifying node of embodiment illustrated in fig. 8 can be used for executing the technical solution of above method embodiment, realization principle
Similar with technical effect, details are not described herein again.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, it is stored thereon with computer program, institute
Computer program is stated to be executed by processor to realize the cloud storage method described in above-described embodiment based on block chain.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the present invention
The part steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. it is various
It can store the medium of program code.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each functional module
Division progress for example, in practical application, can according to need and above-mentioned function distribution is complete by different functional modules
At the internal structure of device being divided into different functional modules, to complete all or part of the functions described above.On
The specific work process for stating the device of description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (13)
1. a kind of cloud storage method based on block chain characterized by comprising
User node obtains the IP address of cloud storage node from block chain account book；
The user node is according to the IP address of the cloud storage node, by the user node by way of point-to-point P2P
Data to be stored are sent to the cloud storage node；
The user node receives the first cryptographic Hash of the data that the cloud storage node is sent and the size of the data
Information；
If the user node determines the data that the first cryptographic Hash of the data and the user node precalculate
Second cryptographic Hash is consistent, it is determined that the data are properly received by the cloud storage node；
During effective storage of the data in the cloud storage node, the user node is to the cloud storage node
The second cryptographic Hash of the data is sent, so that second cryptographic Hash of the cloud storage node according to the data, to the use
Family node returns to the data that the user node stores in the cloud storage node；
If the data that the cloud storage node is returned to the user node are incorrect, the user node is to the cloud storage
The corresponding verifying node of node sends compensation requests.
2. the method according to claim 1, wherein the method also includes:
If the user node accesses the cloud storage during effective storage of the data in the cloud storage node
Node failure, then the user node sends compensation requests to the corresponding verifying node of the cloud storage node.
3. method according to claim 1 or 2, which is characterized in that the determination data are by the cloud storage section
After point is properly received, the method also includes:
The user node broadcasts record of transferring accounts in block chain network, and the record of transferring accounts includes that the data are deposited in the cloud
The temporal information stored in storage node.
4. a kind of cloud storage method based on block chain characterized by comprising
Cloud storage node receives the data to be stored that user node is sent；
The cloud storage node sends the first cryptographic Hash of the data and the size information of the data to the user node；
During effective storage of the data in the cloud storage node, the cloud storage node receives user's section
Second cryptographic Hash of the data that point is sent；
If the cloud storage node determines that the first cryptographic Hash of the data is consistent with the second cryptographic Hash of the data, by institute
It states the data that user node stores in the cloud storage node and is sent to the user node.
5. according to the method described in claim 4, it is characterized in that, the cloud storage node receive user node send wait deposit
Before the data of storage, the method also includes:
The cloud storage node is by the idle storage space size of the cloud storage node, the block chain mark of the cloud storage node
Know information, the IP address information of the cloud storage node is broadcast in block chain network.
6. a kind of cloud storage method based on block chain characterized by comprising
It verifies node and receives the compensation requests that user node is sent, the compensation requests include that the user node is deposited in the cloud
Second cryptographic Hash of the data stored on storage node；
The verifying node sends the second cryptographic Hash of the data to the cloud storage node, so that the cloud storage node root
According to the second cryptographic Hash of the data, return to what the user node stored in the cloud storage node to the verifying node
Data；
If the number to be stored that data and the user node that the cloud storage node returns are sent to the cloud storage node
According to difference, then the verifying node provides reparation to the user node.
7. a kind of user node characterized by comprising
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as executing following operation by the processor:
The IP address of cloud storage node is obtained from block chain account book；
According to the IP address of the cloud storage node, the user is saved in a manner of point-to-point P2P the communication interface
Point data to be stored are sent to the cloud storage node；
The first cryptographic Hash and the data of data that the cloud storage node is sent are received by the communication interface
Size information；
If it is determined that the second cryptographic Hash one of the data that the first cryptographic Hash of the data and the user node precalculate
It causes, it is determined that the data are properly received by the cloud storage node；
During effective storage of the data in the cloud storage node, by the communication interface to the cloud storage
Node sends the second cryptographic Hash of the data, so that second cryptographic Hash of the cloud storage node according to the data, to institute
It states user node and returns to the data that the user node stores in the cloud storage node；
If the data that the cloud storage node is returned to the user node are incorrect, pass through the communication interface to the cloud
The corresponding verifying node of memory node sends compensation requests.
8. user node according to claim 7, which is characterized in that the processor is also used to:
If the user node accesses the cloud storage during effective storage of the data in the cloud storage node
Node failure then sends compensation requests to the corresponding verifying node of the cloud storage node by the communication interface.
9. user node according to claim 7 or 8, which is characterized in that the processor determines the data by institute
It states after cloud storage node is properly received, is also used to:
Record of transferring accounts is broadcasted in block chain network by the communication interface, the record of transferring accounts includes the data described
The temporal information stored in cloud storage node.
10. a kind of cloud storage node characterized by comprising
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as executing following operation by the processor:
The data to be stored that user node is sent are received by the communication interface；
The first cryptographic Hash of the data and the size letter of the data are sent to the user node by the communication interface
Breath；
During effective storage of the data in the cloud storage node, passes through the communication interface and receive the user
Second cryptographic Hash of the data that node is sent；
If it is determined that the first cryptographic Hash of the data is consistent with the second cryptographic Hash of the data, then passing through the communication interface will
The data that the user node stores in the cloud storage node are sent to the user node.
11. cloud storage node according to claim 10, which is characterized in that the processor is connect by the communication interface
Before the data to be stored for receiving user node transmission, further includes:
By the communication interface by the idle storage space size of the cloud storage node, the block chain of the cloud storage node
Identification information, the cloud storage node IP address information be broadcast in block chain network.
12. a kind of verifying node characterized by comprising
Memory；
Processor；
Communication interface；And
Computer program；
Wherein, the computer program stores in the memory, and is configured as executing following operation by the processor:
The compensation requests that user node is sent are received by the communication interface, the compensation requests include that the user node exists
Second cryptographic Hash of the data stored on the cloud storage node；
The second cryptographic Hash of the data is sent to the cloud storage node by the communication interface, so that the cloud storage section
Point returns to the user node to the verifying node and deposits in the cloud storage node according to the second cryptographic Hash of the data
The data of storage；
If the number to be stored that data and the user node that the cloud storage node returns are sent to the cloud storage node
According to difference, then reparation is provided to the user node.
13. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
As the method according to claim 1 to 6 is realized when being executed by processor.
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