CN109788060A - Cloud data sharing and update method based on block chain - Google Patents
Cloud data sharing and update method based on block chain Download PDFInfo
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Abstract
A kind of cloud data sharing and update method based on block chain.It sets the size that the memory headroom accesses the private block chain by establishing private block chain；Input reliability percentage δ determines security consideration range；Date storage method is selected to carry out data storage or update according to the security consideration range.The characteristics of present invention is by combining cloud platform and block chain, personal numerous smart machines are set up into private block chain, it realizes and carries out safe data storage, shared and update under different cloud platforms, with the relationship of different date storage method equilibrium data reliability and data updating efficiency.
Description
Technical field
The present invention relates to internet area, in particular to a kind of cloud data sharing and update method based on block chain.
Background technique
The concept of Smart Product is similar to Meta Product.So-called Meta Products refers to all wearable biographies
The products such as sensor equipment, smart phone and intelligent automobile.Intelligent Service can be provided for user in daily life, help him
It is more effective and more efficiently realize target.It is developed however, different devices may belong to different manufacturers, other manufacturer
It may develop again and belong to respective cloud platform as the purposes of data backup in device.
The purpose of storing data is in order to preferably provide personalized service for user, to allow Meta Products
Storage reuses and combines user data.In order to be applied to the current market Meta Products, manufacturer possesses the cloud of oneself
Platform, cloud platform belong to the platform of centralization, emphasize that different storage services can be gathered, and calculate comprising data storage and data
Etc..From the point of view of single manufacturer, in products & services there are many advantages of, but these platforms only limit from product use,
The product of other brands is can not to share and share the data.It is more and more fast in internet development from the perspective of user
Today of speed, a user often buys the smart machine of different vendor, or uses the application product of different company,
And all have itself cloud platform service between each manufacturer, which results in the problems that different manufacturer's services cannot be compatible with.Such as:
Certain A has two mobile phones, and a mobile phone is W manufacturer, and another Zhi Shouji is O manufacturer, the private datas of this two mobile phones can not be via
Respective cloud platform carries out the sharing or duplication of storing data.So difficulty is how effectively to trust and avoid outside privacy
Under the situation let out, the data on same user both sides can be shared.
Summary of the invention
In order to solve the problems, such as the data sharing in background technique under different cloud platforms, the present invention provides one kind based on cloud
Calculate under environment, in conjunction with block chain technology can effectively trust and the cloud data sharing for avoiding privacy from leaking and update method.
The technical solution adopted by the present invention to solve the technical problems is: a kind of cloud data sharing based on block chain and more
New method, comprising the following steps:
Step 1) establishes private block chain, and the node of individual's block chain is corresponded to the cloud platform of manufacturer by the personal device of user
In the personal device memory headroom as block constitute；
Step 2 sets the size that the memory headroom accesses the private block chain；
Step 3) input reliability percentage δ determines security consideration range, and the reliability percentage δ is set by the user, described
Safe range includes: weak security consideration range, Generally Recognized as safe limit of consideration and strong security consideration range；
Step 4) selects date storage method to carry out data storage or update according to the security consideration range,
The date storage method includes:
Whole update modes: node gives the data sharing of itself to other nodes in private block chain, and by other nodes
In data save to this node；
Broadcast update mode: there is the node of update that the data that itself is updated are sent in private block chain other nodes；
Adjacent node update mode: node is by the data sharing of itself to the other nodes adjacent with itself；
Using whole update modes within the scope of the weak security consideration；Adjacent segments are used in the Generally Recognized as safe limit of consideration
Point update mode；Using broadcast update mode within the scope of the strong security consideration.
Step 2 specifically includes: the memory headroom include for the personal device be used alone private space and with institute
It states other nodes on private block chain and carries out the shared communal space, by modifying parameter in the personal device, setting should
The private space size and communal space size of personal device.
It further include that there are the states of node for detection comprising: it is newly connect belonging to by detecting the node after step 2
Ingress or existing node；The confirmation private block chain to be accessed whether there is and confirm the node on individual's block chain
Shared memory space whether there is or remaining space size.
The value range of three kinds of security consideration ranges is preset, private block chain passes through the reliability hundred for judging user's input
Divide than security consideration range belonging to δ, corresponding data storage method is automatically selected, when reliability percentage δ meets 1≤δ of δ < δ 2
When, belong to the weak security consideration range；When reliability percentage δ meets 2≤δ of δ < δ 3, belong to Generally Recognized as safe limit of consideration；It can
Meet 3≤δ of δ < δ 4 by property percentage δ, belongs to strong security consideration range, wherein 1=0% δ, δ 2=30%, δ 3=50%, δ 4=100%.
The beneficial effects of the present invention are: the characteristics of present invention is by combining cloud platform and block chain, by the numerous of individual
Smart machine sets up private block chain, realizes and carries out safe data storage, shared and update under different cloud platforms.
Detailed description of the invention
Fig. 1 is the service content schematic diagram of the cloud platform framework of the embodiment of the present invention.
Fig. 2 is the storage device architecture diagram of the embodiment of the present invention.
Fig. 3 is the transmission schematic diagram of the storage device of the embodiment of the present invention.
Fig. 4 is the cloud platform relation schematic diagram of the embodiment of the present invention.
Fig. 5 is the block chain data storage framework of the cloud computing environment of the embodiment of the present invention.
Specific embodiment
Embodiments of the present invention is further illustrated with reference to the accompanying drawing:
In the embodiment of the present invention, a kind of cloud data sharing and update method based on block chain, be one kind combine cloud platform with
And the characteristic of block chain, mainly for the data sharing between same manufacturer and the cloud platform of different vendor, between each equipment
And the mechanism updated.
Firstly, establishing private block chain.In individual's block chain, block is made of the personal device of user, it is specific and
It says, the block (or being node) under individual's block chain refers in the cloud platform of corresponding manufacturer, master belonging to the personal device
The memory headroom (or being service clearance) of the equipment is corresponded in machine.After establishing private block chain, by establishing intelligence between node
Energy contract carries out the exchange of data, updates.
Wherein, personal device can be any wearable sensors equipment, smart phone, computer and intelligent automobile etc. base
In the equipment that cloud platform carries out data storage.
Secondly, establishing shared memory space.The memory space includes the private space being used alone for the personal device
And carry out the shared communal space with other nodes on the private block chain, the private space size of the personal device and
Communal space size can select the personal device corresponding by user's setting themselves, user by being configured in personal device
Service clearance in the open communal space size.
Such as: there is the space of 3Mb in service clearance, user sets 2Mb and belongs to shared drive, oneself can be shared with connection
Other equipment on private block chain, or temporary duplication other devices from block chain, remaining 1Mb supply service sky
Between corresponding personal device secret use.
It is then detected that there are node states.Node can be divided into the node being newly added or already existing node, either newly
The node of addition or already existing node, it is necessary first to which the confirmation private block chain to be added whether there is, and then confirm
The shared memory space of each node whether there is on individual's block chain or still how many space can be used.It repeats to detect
It is finished until receiving suspension or detection.
Finally, selection storage method carries out the storage of data, shared and update etc..It is total to when each node needs to carry out data
When enjoying, updating, user indicates that this behaviour in service belongs to the security consideration model of which grade by setting reliability percentage δ
It encloses, the grade of security consideration range is divided into weak security consideration range, Generally Recognized as safe limit of consideration and strong security consideration range, by
Different security consideration ranges select different date storage methods.
The date storage method includes three kinds:
Method 1: whole update modes, whole nodes (setting node number as n) all update once, then update times areIt is secondary.Such as: when there is newly-increased node to access private block chain, entire private block chain application method 1 is carried out
It updates, the whole for making newly-increased node store other nodes shares content, and other nodes is made all to receive newly-increased node
Data information.
Method 2: broadcast update mode, each node sends a pass evidence to the node only updated outward.It then updates secondary
Number isIt is secondary.Such as: the case of Fig. 2 includes six different nodes, then all sweeps and once at least need 5+4+3+2+1
Totally 15 times.
Method 3: adjacent node update mode expands the mode cumulative with adjacent node.Such as: the case of Fig. 3 includes
Six different nodes, then at most extend 3 times.Such as Fig. 3, the relationship between different cloud platform devices, the case that method 3 executes are shown
Example carries out node amplification by the characteristic of block chain node.
There are new nodes, then it is assumed that behaviour in service belongs to weak security consideration range, and application method 1 stores.
There are old nodes and highly safe demand, then it is assumed that behaviour in service belongs to strong security consideration range, and application method 2 is deposited
Storage.
There are old nodes and Generally Recognized as safe demand, then it is assumed that behaviour in service belongs to Generally Recognized as safe limit of consideration, application method 3
Storage.
δ 1=0%, δ 2=30%, δ 3=50%, δ 4=100% are set,
As 1≤δ of δ < δ 2, belong to weak security consideration range.
As 2≤δ of δ < δ 3, belong to Generally Recognized as safe limit of consideration.
As 3≤δ of δ < δ 4, belong to strong security consideration range.
Such as: certain person has had mobile phone two, and the province respectively used is different, records different groups of friends messages.Two
Respective storing data is in different manufacturer's cloud platforms.This two mobile phones are considered as old node, after block chain is added, every time more
The state there are node can be detected when new storage content, belongs to old node, certain person has increased newly important in a certain mobile phone
Data, set reliability percentage δ as 80%, then automatically select whole update modes, each mobile phone updates once, really
Protect the complete update of data.At this point, a notebook computer is newly bought, since the cloud that this computer belongs to another brand is empty
Between, at this time, certain person block chain is added, initially belong to the state of new node, the part of internal data or empty
Compare more, considers weak safe range, automatically select whole update modes, include that new notebook and two mobile phones are equal to all devices
Carry out data update.
In private block chain, the update efficiency of three kinds of storage methods is different, and 1 pair of method whole nodes are updated, number
According to reliability it is higher, the used time is longer, and method 2 and 3 efficiency of method are higher, and the reliability that data update is different, and user is according to setting
The significance level of standby service condition and data can be used different update mode, equilibrium data safety and data updating efficiency it
Between relationship.
As shown in figure 5, the block chain data storage framework of cloud platform includes data collection zone block base station, block data library,
Each node of private block chain is used for aggregated data as data collection zone block base station；Block data library is for storing data.Its
In, data collection zone block base station, block data library are that personal device corresponds to memory headroom in cloud platform.
Assuming that there are three block (Block) in cloud computing environment, corresponding Hash is established to the sensing record of location
(Hash) relationship of tree.Wireless sensor network includes the record content of all the sensors of the block.Individual's block chain penetrates
Hash algorithm encrypts the transaction in a block of trading, and message is compressed into the hashword of string number and letter composition
Symbol is gone here and there, and arbitrary node can obtain corresponding cryptographic Hash through simple Hash calculation in block chain, if the Kazakhstan calculated
Uncommon value just represents the message in block there is no variation and is not modified.
As shown in Figure 1, including the service of block chain and management service in the software services layer of cloud platform, block chain service is covered
The characteristic of all block chains, such as: intelligent contract.Management service is the control to all services, includes the service of block chain, example
Such as: the screening that user logins.
Fig. 2 is storage device architecture diagram, and the relationship of behind file transmission can correspond to Fig. 3.Wherein, A, B, C, D, E, F
It is considered as respective device and is located at similar and different memory space, the processing mode of respective intension distribution hash table shares
There is m node, then there are m-1 paths.A, B, C, D, E are being required no knowledge about, F comes under situation wherefrom, it is only necessary to know each
After from where the cloud platform that different brands device stores, it is directly added into privately owned block chain, as corresponding to each personal device
Service clearance under host is as node.Particularly, if there are the more mobile phones with brand, there can be respective service clearance and deposit
Situation about being in same host in brand subordinate's cloud platform.
No matter different or identical cloud platform storage space, the feasibility presented are belonged to for different intelligent apparatus
State.Such as: A is in one-to-one storage cloud 1.B is in one-to-one storage cloud 2.C and D adheres to different storage clouds 2 separately and deposits
It stores up in cloud 3, it will be apparent that, D belongs to additional storage backup.E and F is in one-to-one storage cloud 3.However, such relationship, it can
Directly to correspond to the A of Fig. 3, B, C, D, E, F.Conclusion show that there are two types of storage states: (1) one-to-one；(2) one-to-many.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
Claims (4)
1. a kind of cloud data sharing and update method based on block chain, which comprises the following steps:
Step 1) establishes private block chain, and the node of individual's block chain is corresponded to the cloud platform of manufacturer by the personal device of user
In the personal device memory headroom as block constitute；
Step 2 sets the size that the memory headroom accesses the private block chain；
Step 3) input reliability percentage δ determines security consideration range, and the reliability percentage δ is set by the user, described
Safe range includes: weak security consideration range, Generally Recognized as safe limit of consideration and strong security consideration range；
Step 4) selects date storage method to carry out data storage or update according to the security consideration range,
The date storage method includes:
Whole update modes: node gives the data sharing of itself to other nodes in private block chain, and by other nodes
In data save to this node；
Broadcast update mode: there is the node of update that the data that itself is updated are sent in private block chain other nodes；
Adjacent node update mode: node is by the data sharing of itself to the other nodes adjacent with itself；
Using whole update modes within the scope of the weak security consideration；Adjacent segments are used in the Generally Recognized as safe limit of consideration
Point update mode；Using broadcast update mode within the scope of the strong security consideration.
2. the cloud data sharing and update method according to claim 1 based on block chain, it is characterised in that: step 2 tool
Body include: the memory headroom include the private space being used alone for the personal device and on the private block chain its
Its node carries out the shared communal space, and by modifying parameter in the personal device, the secret that the personal device is arranged is empty
Between size and communal space size.
3. the cloud data sharing and update method according to claim 1 based on block chain, it is characterised in that: further include inspection
There are the states of node for survey comprising: after by step 2, detects the node and belong to new access node or existing section
Point；The confirmation private block chain to be accessed, which whether there is and confirm the shared memory space of the node on individual's block chain, is
No presence or remaining space size.
4. the cloud data sharing and update method according to claim 1 based on block chain, it is characterised in that: preset
The value range of three kinds of security consideration ranges, private block chain pass through safety belonging to the reliability percentage δ for judging user's input
Limit of consideration automatically selects corresponding data storage method, when reliability percentage δ meets 1≤δ of δ < δ 2, belongs to the weak peace
Full limit of consideration；When meeting 2≤δ of δ < δ 3, belong to Generally Recognized as safe limit of consideration；When meeting 3≤δ of δ < δ 4, belong to strong security consideration
Range, wherein 1=0% δ, δ 2=30%, δ 3=50%, δ 4=100%.
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Effective date of registration: 20220615 Address after: No. 1, Mintai Avenue, Yizheng Economic Development Zone, Yangzhou, Jiangsu 211400 Patentee after: Jiangsu CAMCE Zhilian Technology Co.,Ltd. Address before: No. 57, Jingxuan West Road, Qufu, Jining City, Shandong Province Patentee before: QUFU NORMAL University |