CN109787748A - Submariner device data sharing operational method, device and storage medium based on block chain - Google Patents
Submariner device data sharing operational method, device and storage medium based on block chain Download PDFInfo
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- CN109787748A CN109787748A CN201811639039.2A CN201811639039A CN109787748A CN 109787748 A CN109787748 A CN 109787748A CN 201811639039 A CN201811639039 A CN 201811639039A CN 109787748 A CN109787748 A CN 109787748A
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Abstract
The present invention proposes a kind of submariner device data sharing operational method, device and computer readable storage medium based on block chain, and this method includes the P2P network that building has multiple submariner device nodes；Submariner device node encrypts data information collected and broadcasts to other nodes；Submariner device node is to the data information caching for receiving and passing through verifying；According to default authentication mechanism, block chain is added in the Merkle root of the data information of cachings all in the predetermined time.Described device includes processor and memory, and the memory is stored with computer program, and each step of the submariner device data sharing operational method based on block chain as described above is realized when the computer program is executed by processor.The sharing efficiency of submariner device company-data had not only can be improved in the present invention, but also can guarantee the safety of data, was of great significance to the problem for realizing reliable information interaction in strange insincere maritime environment.
Description
Technical field
The invention belongs to submariner device field of communication technology more particularly to a kind of submariner device data sharing works based on block chain
Industry method, apparatus and computer readable storage medium.
Background technique
Autonomous underwater vehicle is detection equipment unmanned, by being remotely controlled or being controlled automatically at underwater navigation, can be substituted
Manned midget submarine carries out deep-sea detecting, lifesaving, the intelligent equipment for excluding the high risks underwater operations such as submarine mine.Unmanned submariner
Device is mainly used for search and rescue, Intelligence, Surveillance and Reconnaissance task, and compared with manned platform, underwater autonomous underwater vehicle, which executes task, to be had very
More advantages: autonomous underwater vehicle meets the various kinds of equipment of manned needs without being equipped with, and can enduringly execute task, work efficiency is high,
It is at low cost；Autonomous underwater vehicle can reach phytal zone that large ship can not reach perhaps sea area dispute area or in seabed
The more complicated waters of looks executes task；Autonomous underwater vehicle can allow naval seaman far from directly fight and possible injures and deaths.
Single autonomous underwater vehicle is no longer satisfied more complicated task due to data safety, intelligence are low,
And then develops to have through multiple autonomous underwater vehicle multi-agent synergy operations and realize the shared of detection data, and pass through common recognition machine
System improves the accuracy of target acquisition.The data of autonomous underwater vehicle group network are easy to be tampered, and if once have single
Submariner device will cause the loss of partial data because failure can not recycle.
Block chain is a nearest relatively more popular technology, and block chain technology is to realize number using block linked data structure
According to verifying and storage, and know together algorithm to generate and more new data, also in the way of cryptography using distributed node
The safety for guaranteeing data transmission and access is a kind of technology of completely new distributed basis framework.Since block chain technology has
High security performance, once the data of write-in block chain network are not easy to be tampered, and the data storage of block chain network
With high safety, it is not easy to be stolen.Therefore, the application is based on block chain technology and proposes a kind of submariner device data sharing
Scheme can not only guarantee that the safety of autonomous underwater vehicle group network data was shared, but also the group decision-making of cluster may be implemented.
Summary of the invention
In order to solve problems in the prior art.The present invention proposes a kind of submariner device data sharing operator based on block chain
Method, device and computer readable storage medium.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
In a first aspect, providing a kind of submariner device data sharing operational method based on block chain, comprising the following steps:
Construct the P2P network with multiple submariner device nodes；
Submariner device node encrypts data information collected and broadcasts to other nodes；
Submariner device node is to the data information caching for receiving and passing through verifying；
According to default authentication mechanism, block chain is added in the data information of cachings all in the predetermined time.
Preferably, the step of submariner device node encrypts data information collected and broadcasts to other nodes, specifically
Are as follows:
The cryptographic Hash that data information collected is calculated according to hash algorithm, using private key by obtained cryptographic Hash and data
Information is encrypted and is broadcasted to other nodes.
Preferably, the step of submariner device node is to receiving and being cached by the data information of verifying, specifically:
Submariner device node decrypts received data information using public key and calculates the cryptographic Hash of data information, if calculating
Cryptographic Hash it is identical as what is received, be verified, data information cached and continues to broadcast；It is tested if cryptographic Hash is not identical
Card does not pass through, and abandons the data information.
Preferably, the Merkle root of the data information of cachings all in the predetermined time is added according to default authentication mechanism
The step of entering block chain, specifically includes the following steps:
Each submariner device node calculates separately the Merkle root of the data information cached in predetermined period of time, and right
It broadcasts after the encryption of Merkle root to other nodes；
Receive the Merkle that the Merkle root that decryption obtains is calculated the node of encryption Merkle root with this node
Root verifying, the two is identical, is verified；The Merkle root is abandoned if not identical；
Block chain is added as new data block in the Merkle root verified at first by super half, and is synchronized to all
Node completes data sharing.
Preferably, having in the step of P2P network of multiple submariner device nodes in building, it is included in P2P network and adds
Enter client node.
Preferably, further comprising the steps of: receiving the instruction of inquiry data, and obtain data and in visitor from block chain
Family end node is shown.
Second aspect, provides a kind of submariner device data sharing apparatus for work based on block chain, including processor and deposits
Reservoir, the memory are stored with computer program, and the computer program realizes base as described above when being executed by processor
In each step of the submariner device data sharing operational method of block chain.
The third aspect provides a kind of computer readable storage medium, is stored thereon with computer program, the computer journey
Each step of the submariner device data sharing operational method based on block chain as described above is realized when sequence is executed by processor.
The present invention provides the advantages of technical solution and has the active effect that
1, submariner device is acquired in conjunction with block chain and encryption technology by constructing the P2P network of multiple submariner device nodes
Data information encryption, and data information is added by block chain by the default authentication mechanism reached common understanding, and be synchronized to all
Submariner device node realizes data sharing.Utilize the decentralization of block chain, network stalwartness, flexibility, safe and reliable and common recognition
The features such as mechanism, guarantees that the acquired data of submariner device are shared safely in a network, can be tampered to avoid the data in network；Often
A submariner device node has same block, it is possible to prevente effectively from the acquired number after single submariner device can not be recycled because of failure
According to loss.Reliable information in strange insincere maritime environment is realized the present invention is based on the submariner device data sharing of block chain to hand over
Mutual problem, is of great significance.
2, encryption and decryption verification are carried out to submariner device data collected by hash algorithm and asymmetric encryption techniques,
The verifying to submariner body part may be implemented, avoid the personation of unknown node；Meanwhile whether being usurped in being transmitted with verify data
Change, guarantees the integrality of transmission data.
3, by the encrypted authentication to the data information cached in predetermined period of time, and voted by super half
Data information is added block chain and realizes data sharing, it is ensured that data information in each submariner device node by common recognition mechanism
Complete and identical, the not perfect problem of data caused by the difference for avoiding respective nodes data cached.
4, by the way that client node is added in P2P network, the data in block chain, which can synchronize, to be shared to client's end segment
Point, user can receive inquiry data by client.
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 the flow chart of the submariner device data sharing operational method provided by the present invention based on block chain；
Fig. 2 is the schematic diagram that block is generated in the embodiment of the present invention；
Fig. 3 is that the application example of the submariner device data sharing operational method and device provided by the present invention based on block chain shows
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise clearly specific
Restriction.
Unless specifically stated otherwise, otherwise the positioned opposite of step described in embodiment does not limit the scope of the invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but in the appropriate case,
The technology, method and apparatus should be considered as authorizing part of specification.
As the first aspect of the present invention, Fig. 1 show the submariner device data sharing provided by the present invention based on block chain
The flow chart of operational method, comprising the following steps:
S1, building have the P2P network (201) of multiple submariner device nodes.
Multiple submariner device nodes form the distributed network for collaborative work, each submariner in multiple submariner device nodes
Device node is directly communicated with other each submariner device nodes, each submariner device node data collected can directly node it
Between intervention of the transmission without intermediate link and server, avoid possible bottleneck.Illustrate shown in Figure 3, submariner
Device node A, submariner device node B, submariner device node C, submariner device node D be each responsible for acquiring sea-floor relief in specified sea area,
Hydrological characteristics data, by P2P network, each submariner device node can by data broadcasting collected to other nodes, while
It can receive the data that other nodes are broadcasted.
Illustratively, Kademlia agreement or ether mill technology be can use to construct block chain network.
S2, submariner device node encrypt data information collected and broadcast to other nodes.
This step specifically:
202, the cryptographic Hash that data information collected is calculated according to hash algorithm, using private key by obtained cryptographic Hash and
Data information is encrypted and is broadcasted to other nodes.
Specifically, each submariner device is first calculated according to hash algorithm collected after collecting data information
The cryptographic Hash of data information encrypts cryptographic Hash and data information message using private key, obtains ciphertext, then that ciphertext is wide
Cast to neighbouring node.Due to Hash operation be it is irreversible and correspond, by cryptographic Hash can with verify data whether by
It distorts.
S3, submariner device node are to the data information caching for receiving and passing through verifying.
This step specifically includes:
203, the submariner device node for receiving data information is decrypted using public key and calculates the cryptographic Hash of data information；
204, verifying calculate cryptographic Hash and receive it is whether identical, if it is different, then verify do not pass through, abandon the number
According to；If identical, it is verified, carries out next step 205；
205, data information is cached and continues to broadcast.
Specifically, each submariner device node also receives the information of other node broadcasts while broadcast data information, dives
Boat device node is decrypted after receiving the data information of encryption using public key, and calculates the cryptographic Hash of data information；So
The cryptographic Hash being calculated is verified compared with receiving cryptographic Hash afterwards, if it is not the same, then indicating that verifying does not pass through, it is possible to
Data information is tampered in transmission process, needs to abandon the data；If two values are identical, then it represents that be verified, by the number
According to information cache, while by the data broadcasting to other neighbouring nodes, and so on, so that data information is diffused into entirely
Network guarantees that the data acquired every time can be broadcast to other nodes.
S4, basis preset authentication mechanism, and block chain is added in the data information of cachings all in the predetermined time.
This step specifically includes:
206, each submariner device node calculates separately the Merkle root of the data information cached in predetermined period of time, and
To broadcast after the encryption of Merkle root to other nodes；
207, the node for receiving encryption Merkle root will decrypt what obtained Merkle root was calculated with this node
The verifying of Merkle root；
208, the two is identical, is verified, and carries out next step 209；The Merkle root is abandoned if not identical；
209, block chain is added as new data block in the Merkle root verified at first by super half, and be synchronized to
All nodes complete data sharing.
Specifically, in predetermined time node, each submariner device node, which calculates separately in itself predetermined time cycle, to be owned
The Merkle root of the data information of caching.Illustratively, the calculation method of Merkle root is shown in Figure 2, with 6 data messages
For be illustrated: data message 1 to message 6 respectively by SHA256 be calculated Hash1, Hash2 ... Hash6, will
Hash1, Hash2 hashed value are together in series, then do SHA256 calculating, obtain Hash12；Similarly, Hash34, Hash56 are obtained；Again
Hash12, Hash34 are done into SHA256 calculating, obtain Hash1234；Hash1234, Hash56 are SHA256 to be calculated
Hash123456, in this way recursive calculation hashed value layer by layer, to the last remain next Hash123456, are exactly
Merkle root.
The submariner device node that Merkle root first has been calculated, after being encrypted using the private key of oneself to Merkle root, into network
Other nodes are broadcasted；After other nodes receive, the public key of use information sender is decrypted, and decryption is obtained
The Merkle root that Merkle root and this node are calculated is verified, and the two is not identical, then verifies and do not pass through, and it is received to abandon institute
Merkle root；The two is identical, is verified and continues to broadcast；The verifying ballot of super half submariner device will be passed through in network
New data block of the Merkle root as whole network, and it is synchronized to submariner device node all in network, it is total to complete data
It enjoys.
Illustratively, at regular intervals, the node in P2P network utilizes Merkle tree group to the data cached
It knits, and block chain is added by addition head.
In another preferred embodiment, in addition to above-mentioned steps, the above-mentioned submariner device data sharing method based on block chain
It is further comprising the steps of:
Client node is added in P2P network.Since client node is also in block chain network, client can be passed through
End node can inquire data.
Specifically, the instruction of inquiry data is received, and obtains data from block chain and is shown in client node.
Illustratively, it shares by submariner device acquisition data broadcasting to P2P network, judges whether there is inquiry instruction,
The data to match with inquiry instruction are searched from P2P network if receiving inquiry instruction, and return to query result, are shown
It is shown in client, uses data so that personnel query refers to.
It is shown in Figure 3 as a specifically embodiment, for there is submariner device node A, B, C, D in P2P network
It is illustrated, submariner device node A, B, C, D are each responsible for acquiring sea-floor relief in specified sea area, hydrological characteristics data.
After submariner device node A collects data α, the cryptographic Hash of data message α is calculated by hash algorithm, by what is obtained
Cryptographic Hash is encrypted with data message α using the private key of submariner device node A, and encrypted information is wide by P2P network
Neighbouring node (B, C, D) is cast to, by taking the encryption information that submariner device Node-B receiver to A transmits as an example:
After submariner device Node-B receiver to the encryption information of A, it is decrypted using the public key of A, datagram is obtained after decryption
Literary α and cryptographic Hash, B calculate the cryptographic Hash of data message α by hash algorithm, if the cryptographic Hash that cryptographic Hash and A that B is calculated calculate
It is identical, then it is verified, B is by data buffer storage and continues to broadcast；If two cryptographic Hash are not identical, the data are abandoned.
It should be noted that submariner device node A broadcast data simultaneously, submariner device node A also receive other nodes (B,
C, D) broadcast data, i.e. submariner device node A, B, C, D also receiving and verify data respectively while broadcast data.
In predetermined time node, submariner device node A, B, C, D calculate separately the number from all cachings in time interval t
According to the Merkle root of message, calculate after most fast node encrypts Merkle root using private key to other node broadcasts.It receives
The node for encrypting Merkle root decrypts Merkle root using the public key of sender, and by the Merkle root itself calculated and receives
Carry out verify, the two is identical, verify, finally using half super in P2P network ballot verifying Merkle root as entirely
The new data block of network, all nodes synchronize new block, are loaded on data-link.
As it can be seen that present invention combination block chain and asymmetric encryption techniques, the data information that submariner device is acquired is encrypted, and
Block chain is added in data information by the default authentication mechanism reached common understanding, all submariner device nodes is synchronized to and realizes that data are total
It enjoys.Guarantee submariner device using the features such as decentralization of block chain, network stalwartness, flexibility, safe and reliable and common recognition mechanism
Acquired data are shared safely in a network, can be tampered to avoid the data in network；Each submariner device node has same
Block, it is possible to prevente effectively from after single submariner device can not be recycled because of failure acquired data loss.The present invention is based on
The submariner device data sharing of block chain realizes the problem of reliable information interaction in strange insincere maritime environment, has great meaning
Justice.
As a second aspect of the invention, a kind of submariner device data sharing apparatus for work based on block chain, the dress are provided
Set include processor, memory and storage in memory and the computer program that can run on a processor, processor
The step of can realizing the above method when executing computer program.
As the third aspect of the present invention, a kind of computer readable storage medium is provided, on computer readable storage medium
It is stored with computer program, the computer program is when being executed by processor, it can be achieved that each step of the above method.
The data information that the present invention acquires submariner device node is broadcasted altogether by asymmetric encryption techniques in P2P network
It enjoys, by the authentication mechanism reached common understanding, the data of acquisition is added by Merkle tree tissue within each predetermined time
Block chain.It can be communicated with each other between each node, reduce the dependence to central server, in conjunction with Hash operation and public key
The encryption of private key ensure that data are shared safely in a network, can be tampered to avoid the data in network；Each submariner device section
Point have same block, it is possible to prevente effectively from after single submariner device can not be recycled because of failure acquired data loss.
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.
Claims (8)
1. a kind of submariner device data sharing operational method based on block chain, which comprises the following steps:
Construct the P2P network with multiple submariner device nodes；
Submariner device node encrypts data information collected and broadcasts to other submariner device nodes；
Submariner device node is to the data information caching for receiving and passing through verifying；
According to default authentication mechanism, block chain is added in the data information of cachings all in the predetermined time.
2. the submariner device data sharing operational method according to claim 1 based on block chain, which is characterized in that submariner device
The step of node encrypts data information collected and broadcasts to other submariner device nodes, specifically:
The cryptographic Hash that data information collected is calculated according to hash algorithm, using private key by obtained cryptographic Hash and data information
It is encrypted and is broadcasted to other nodes.
3. the submariner device data sharing operational method according to claim 2 based on block chain, which is characterized in that submariner device
The step of node is to receiving and being cached by the data information of verifying, specifically:
The cryptographic Hash of data information is decrypted to received data information using public key and calculated to submariner device node, if calculated Kazakhstan
Uncommon value is identical as what is received, is verified, data information is cached and continues to broadcast；It is verified not if cryptographic Hash is not identical
Pass through, abandons the data information.
4. the submariner device data sharing operational method according to claim 1 based on block chain, which is characterized in that according to pre-
If authentication mechanism, the step of block chain is added in the data informations of cachings all in the predetermined time, specifically includes the following steps:
Each submariner device node calculates separately the Merkle root of the data information cached in predetermined period of time, and to Merkle
It broadcasts after root encryption to other nodes；
The node for receiving encryption Merkle root tests the Merkle root that the Merkle root that decryption obtains is calculated with this node
Card, the two is identical, is verified；The Merkle root is abandoned if not identical；
Block chain is added as new data block in the Merkle root verified at first by super half, and is synchronized to all nodes
Complete data sharing.
5. the submariner device data sharing operational method according to claim 1 based on block chain, which is characterized in that constructing
Have in the step of P2P network of multiple submariner device nodes, is included in P2P network and client node is added.
6. the submariner device data sharing operational method according to claim 5 based on block chain, which is characterized in that further include
Following steps: receiving the instruction of inquiry data, and obtains data from block chain and show in client node.
7. a kind of submariner device data sharing apparatus for work based on block chain, it is characterised in that: including processor and memory,
The memory is stored with computer program, is realized when the computer program is executed by processor as appointed in claim 1 to 6
Each step of submariner device data sharing operational method described in one based on block chain.
8. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
Such as the submariner device data sharing operator described in any one of claims 1 to 6 based on block chain is realized when processor executes
Each step of method.
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| CN111262936A (en) * | 2020-01-16 | 2020-06-09 | 天津大学 | Block chain-based ocean big data sharing method |
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