CN110942305A - Real estate information management method and device based on block chain - Google Patents
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Abstract
The invention provides a real estate information management method and device based on a block chain, wherein the method comprises the following steps: acquiring real estate information data and determining a current timestamp; encrypting the timestamp and the real estate information data; transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism; and storing the data in the specific node in the data block through a hash operation. According to the real estate information management method and device based on the block chain, the time stamp is set, and the time stamp and the acquired real estate information data are encrypted, so that data uploaded to a data chain are effectively prevented from being tampered, the data on all the chains have the time stamp, the whole data record can be traced back according to the time stamp, and the safety and reliability of the data can be guaranteed.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a real estate information management method and device based on a block chain.
Background
With the development of the blockchain, the integrated application of the blockchain technology plays an important role in new technical innovation and industrial revolution, and has been extended to a plurality of fields such as digital finance, internet of things, intelligent manufacturing, supply chain management, digital asset transaction and the like. Meanwhile, with the continuous promotion of the unified operation reform of the real estate, various operation contents of the real estate are gradually expanded, and higher requirements are provided for the acquisition, transmission and sharing of real estate information.
In the real estate information process, multiple institutions are often required to be docked for monitoring transaction funds and acquiring real estate related information in real time, but in the existing mechanism management, multiple tables such as a real estate registration information table, a real estate service table, a user information table and the like are often directly constructed for recording related data and storing the related data in a database, so that the operation authority of an administrator is too large, the data can be tampered, and the safety of the data cannot be guaranteed.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method and an apparatus for real estate information management based on a block chain.
In a first aspect, the present invention provides a method for real estate information management based on a block chain, the method comprising:
acquiring real estate information data and determining a current timestamp;
encrypting the timestamp and the real estate information data;
transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism;
and storing the data in the specific node in the data block through a hash operation.
Further, the data in the specific node is stored in the data block by a hash operation, and then the method further comprises:
and storing the data in the specific node in a chain mode according to the determined time stamp.
Further, obtaining real estate information data, determining a current timestamp comprising:
and receiving real estate information data sent by each supervision participating mechanism.
Further, using the blockchain consensus mechanism, after transmitting the encrypted data to a specific node of the blockchain, the method includes:
and legally verifying the user identity through a preset unified identity authentication algorithm.
Further, the method further comprises:
and establishing an intermediate database for accessing the acquired real estate information data sent by each supervision participating mechanism in a manner of the intermediate database.
In a second aspect, the present invention provides an apparatus for real estate information management based on a block chain, the apparatus comprising:
the timestamp determining module is used for acquiring real estate information data and determining a current timestamp;
the encryption module is used for encrypting the timestamp and the real estate information data;
the transmission module is used for transmitting the encrypted data to a specific node of the block chain by utilizing a block chain consensus mechanism;
and the storage module is used for storing the data in the specific node in the data block through hash operation.
Further, the storage module further comprises:
and the chain mode storage module is used for storing the data in the specific node in a chain mode according to the determined time stamp.
Further, the timestamp determination module previously comprises:
and the real estate information data receiving module is used for receiving the real estate information data sent by each supervision participating mechanism.
In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the method for block chain-based real estate information management provided in the first aspect when executing the program.
In a fourth aspect, the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for real estate information management based on a blockchain provided in the first aspect.
According to the real estate information management method and device based on the block chain, the time stamp is set, and the time stamp and the acquired real estate information data are encrypted, so that data uploaded to a data chain are effectively prevented from being tampered, the data on all the chains have the time stamp, the whole data record can be traced back according to the time stamp, and the safety and reliability of the data can be guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for real estate information management based on a block chain according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for block chain-based real estate information management according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for block chain-based real estate information management according to yet another embodiment of the present invention;
FIG. 4 is a block diagram of an apparatus for block chain-based real estate information management according to an embodiment of the present invention;
fig. 5 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
With the rapid development of new-generation information technologies such as mobile internet, internet of things and cloud computing, data processing is more convenient, and data information safety is mainly considered in the data processing process. In the big data era, information of each person is in a risk of being possibly leaked, and how to solve the safety problem of the data is a hot topic which is widely concerned by the society at present.
In order to solve the above problem, an embodiment of the present invention provides a method for real estate information management based on a block chain. The block chain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism and an encryption algorithm. The blockchain is essentially a decentralized database, which is a string of data blocks associated by using cryptography, each data block contains information of one network transaction, and the information is used for verifying the validity (anti-counterfeiting) of the information and generating the next block. And the data is processed by the block chain technology, so that the safety of the data can be ensured. As shown in fig. 1, the method provided by the embodiment of the present invention includes:
step S101, acquiring real estate information data and determining a current time stamp;
step S102, encrypting the time stamp and the real estate information data;
step S103, transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism;
in step S104, the data in the specific node is stored in the data block by hash operation.
Specifically, since the real estate registration information has characteristics of public credibility and authority, a block chain, i.e., a federation chain, in which a plurality of institutions participate in management in common is suitable for the real estate registration information and the related resource sharing. The alliance chain is a mechanism for establishing a shared database among a plurality of business parties through encryption technology and a point-to-point transmission mode. That is, real estate information data for a plurality of institutions is acquired, and the acquired time stamps are determined. The time stamp here includes information of year, month, day, hour, minute, and second. The real estate referred to in the embodiments of the present invention and the subsequent embodiments of the present invention may be natural resources such as mines, rivers, sea areas, lands, houses, forests, mountains, grasslands, wastelands, mudflats, etc., wild plant resources, infrastructure such as railways, highways, electric power facilities, telecommunication facilities, oil and gas pipelines, buildings, structures, etc., and the embodiments of the present invention do not specifically limit real estate data.
The acquired timestamp and the real estate information data are encrypted, a Paillier homomorphic encryption algorithm can be used for encryption, a symmetric encryption algorithm and an asymmetric encryption algorithm can also be used, the homomorphic encryption algorithm is preferably used for encryption to generate irreversible data, and therefore data of block link nodes can be prevented from being changed.
And transmitting the encrypted data to a specific node of the blockchain according to a blockchain consensus mechanism, wherein the data on the specific node are shared and mutually disclosed, the data in the nodes are subjected to hash operation, and the obtained data or characters are unique and can not be changed or tampered and then are stored in a data block of the blockchain.
According to the real estate information management method based on the block chain, the time stamp is set, the time stamp and the acquired real estate information data are encrypted, data uploaded to a data chain are effectively prevented from being tampered, the data on all the chains have the time stamp, the whole data record can be traced according to the time stamp, and the safety and reliability of the data can be better guaranteed. The application in real estate is as follows: the process of real estate registration comprises the following steps: application → acceptance → receiving, scanning of archive, uploading of input → preliminary examination → verification → book making, certificate making → filing. The whole registration process is put on the block chain for operation, so that departments of other nodes can know the progress of real estate registration in real time. Moreover, the registration operation is carried out on the block chain, the change of each step is recorded by using the time stamp, any change of nodes at different times can be traced, and the data is prevented from being tampered or counterfeited by workers.
Based on the content of the above embodiments, as an alternative embodiment: as shown in fig. 2, after the data in the specific node is stored in the data block by the hash operation, the method further includes:
and step S105, storing the data in the specific node in a chain mode according to the determined time stamp.
Specifically, the real estate information data, that is, the data in the specific node, is stored in a chain manner according to the time sequence of the time stamps, so that the internal association between the data is conveniently searched.
Based on the content of the above embodiments, as an alternative embodiment: as shown in fig. 3, obtaining real estate information data and prior to determining the current timestamp comprises:
and step S100, receiving real estate information data sent by each supervision participating mechanism.
Specifically, in the embodiment of the present invention, each supervision participation mechanism may be a civil administration node, a registration organization node, a tax node, a property node, a social security node, and the like, and these nodes write all real estate information data contents of themselves into a specific node to form a shared database.
Based on the content of the above embodiments, as an alternative embodiment: the method for transmitting the encrypted data to a specific node of the blockchain by using the blockchain consensus mechanism comprises the following steps:
and legally verifying the user identity through a preset unified identity authentication algorithm.
Specifically, in order to solve the problem of identity authentication of each organization shared by block chain data, an account and an organization responsible person behavior body can be bound through biological information such as fingerprints, faces, irises and the like, and then the legality of a user is verified through binding information. Meanwhile, an intelligent contract is added to prevent illegal behaviors.
Based on the content of the above embodiments, as an alternative embodiment: the method further comprises the following steps:
and establishing an intermediate database for accessing the acquired real estate information data sent by each supervision participating mechanism in a manner of the intermediate database.
Specifically, in order to ensure the security of the database, the acquired real estate information data sent by each supervision participating mechanism is accessed in a way of an intermediate library. For example: at present, a real estate registration department and other departments adopt intermediate databases for data docking, for example, if a database A needs to access a database B, a database C needs to be established first, the database B transmits data required by the database A to the database C, and then the database A enters the database C to acquire the data, so that the technical cost is high and the efficiency is low. By using the block chain technology, each government department can directly write own data into the block chain, and then can communicate with databases of other departments without point-to-point intermediate database construction.
In addition, the use of blockchain techniques may also facilitate the verification of material and house purchase eligibility. For example: the house purchasing qualification is checked when house purchasing, wherein the most important thing is to check the house purchasing qualification of the house purchasing family, which includes the content of a plurality of aspects such as family opening, social security, tax payment, loan, famous property and the like, and relates to a plurality of government departments. By using the block chain technology, the result of house purchasing qualification verification is put on a chain, and all the real estate related services can be checked. The block chain technology is used for directly inquiring the personal house information records of related personnel or families without repeatedly submitting certification materials. In addition, the signing, filing, storage and the like of the contract are put on the Internet to generate the electronic contract. Based on the block chain technology, the identity of the signer can be verified while signing the contract, and the electronic signature, the electronic signature and the like of the signer are stored at the same time, so that the validity and the uniqueness of the contract are ensured; an electronic certificate sharing platform is constructed by using a block chain technology, comprehensive data aggregation is realized by a principle of parallel right co-construction, electronic files of individuals or enterprises are formed, anyone cannot tamper or counterfeit at will, and the safety of data is guaranteed to the greatest extent. Based on a block chain consensus mechanism, the electronic certificate information sharing can be realized, the communication cost among departments is saved, and the repeated submission of materials is reduced.
According to the method, the block chain is utilized to break through the data barriers among all departments, the cooperative management among the departments is promoted, the traceability of the whole life cycle of the real estate is realized, the data safety and reliability are guaranteed, meanwhile, the real estate registration service handling efficiency is further improved, and the real estate registration work is standardized.
According to still another aspect of the present invention, an apparatus for real estate information management based on a block chain is provided according to an embodiment of the present invention, and referring to fig. 4, fig. 4 is a block diagram of the apparatus for real estate information management based on a block chain. The apparatus is configured to complete real estate information management based on the block chain provided in the foregoing embodiments. Therefore, the description and definition in the method for real estate information management based on block chains provided by the embodiment of the present invention in the foregoing embodiments can be used for understanding the execution modules in the embodiment of the present invention.
The device includes:
a timestamp determining module 401, configured to obtain real estate information data and determine a current timestamp;
an encryption module 402, configured to encrypt the timestamp and the real estate information data;
a transmission module 403, configured to transmit the encrypted data to a specific node of the blockchain by using a blockchain consensus mechanism;
the storage module 404 is configured to store the data in the specific node in the data block through a hash operation.
Specifically, the specific process of each module in the apparatus of this embodiment to implement its function may refer to the related description in the corresponding method embodiment, and is not described herein again.
The real estate information management device based on the block chain is provided with the timestamp, encrypts the timestamp and the acquired real estate information data, effectively prevents data uploaded to a data chain from being tampered, has the timestamp for all the data on the chain, can trace the whole data record according to the timestamp, and can better ensure the safety and reliability of the data.
Based on the content of the above embodiments, as an alternative embodiment: the storage module also comprises the following components:
and the chain mode storage module is used for storing the data in the specific node in a chain mode according to the determined time stamp.
Specifically, the specific process of each module in the apparatus of this embodiment to implement its function may refer to the related description in the corresponding method embodiment, and is not described herein again.
Based on the content of the above embodiments, as an alternative embodiment: the timestamp determination module is preceded by:
and the real estate information data receiving module is used for receiving the real estate information data sent by each supervision participating mechanism.
Specifically, the specific process of each module in the apparatus of this embodiment to implement its function may refer to the related description in the corresponding method embodiment, and is not described herein again.
Fig. 4 is a block diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the electronic device includes: a processor 401, a memory 402, and a bus 403;
the processor 401 and the memory 402 respectively complete communication with each other through the bus 403; the processor 401 is configured to call program instructions in the memory 402 to execute the method for real estate information management based on block chains provided by the above embodiments, for example, including: acquiring real estate information data and determining a current timestamp; encrypting the timestamp and the real estate information data; transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism; and storing the data in the specific node in the data block through a hash operation.
Embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, performs the steps of a method for real estate information management based on blockchains. Examples include: acquiring real estate information data and determining a current timestamp; encrypting the timestamp and the real estate information data; transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism; and storing the data in the specific node in the data block through a hash operation.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Finally, the principle and the implementation of the present invention are explained by applying the specific embodiments in the present invention, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method for real estate information management based on blockchains, the method comprising:
acquiring real estate information data and determining a current timestamp;
encrypting the timestamp and the real estate information data to generate irreversible data;
transmitting the encrypted data to a specific node of the block chain by using a block chain consensus mechanism;
and storing the data in the specific node in a data block through hash operation.
2. The method of claim 1, wherein storing the data in the specific node in a data block by a hash operation further comprises:
and storing the data in the specific node in a chain mode according to the determined time stamp.
3. The method of claim 1, wherein obtaining real estate information data prior to determining a current timestamp comprises:
and receiving real estate information data sent by each supervision participating mechanism.
4. The method of claim 1, wherein the using the blockchain consensus mechanism after transmitting the encrypted data to the specific node of the blockchain comprises:
and legally verifying the user identity through a preset unified identity authentication algorithm.
5. The method of claim 3, further comprising:
and establishing an intermediate database for accessing the acquired real estate information data sent by each supervision participating mechanism in a manner of the intermediate database.
6. An apparatus for real estate information management based on a blockchain, the apparatus comprising:
the timestamp determining module is used for acquiring real estate information data and determining a current timestamp;
the encryption module is used for encrypting the timestamp and the real estate information data;
the transmission module is used for transmitting the encrypted data to a specific node of the block chain by utilizing a block chain consensus mechanism;
and the storage module is used for storing the data in the specific node in the data block through hash operation.
7. The apparatus of claim 6, wherein the storage module is followed by further comprising:
and the chain storage module is used for storing the data in the specific node in a chain manner according to the determined time stamp.
8. The apparatus of claim 6, wherein the timestamp determination module previously comprises:
and the real estate information data receiving module is used for receiving the real estate information data sent by each supervision participating mechanism.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for block chain based real estate information management according to any of claims 1 to 5 when executing the program.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of the method for real estate information management based on a blockchain of any of claims 1 to 5.
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