CN111460457A

CN111460457A - Real estate property registration supervision method, device, electronic equipment and storage medium

Info

Publication number: CN111460457A
Application number: CN202010245706.XA
Authority: CN
Inventors: 李茂材; 王宗友; 张劲松; 黄焕坤; 周开班; 时一防; 刘区城; 刘攀; 蓝虎; 杨常青; 朱耿良
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-07-28

Abstract

The embodiment of the application discloses a method, a device, electronic equipment and a storage medium for registering and supervising real property rights, wherein the method comprises the following steps: under the condition that an applicant's real estate property registration request is received, acquiring personal information and real estate property information of the applicant; calling a trusted execution environment through an intelligent contract to inspect the personal information of the applicant and the real estate property information to obtain an approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; and under the condition that the approval result indicates that the real estate property registration request passes the approval, storing the real estate property information into a real estate block chain by calling the intelligent contract. The security and reliability of the examination and approval are improved by examining the real estate registration request in the trusted execution environment and storing the examined real estate information into the block.

Description

Real estate property registration supervision method, device, electronic equipment and storage medium

Technical Field

The present application relates to the field of network technologies, and in particular, to a method and an apparatus for supervising real estate property registration, an electronic device, and a storage medium.

Background

The real estate registration is a fact that a user submits a registration application to a related institution and real estate registration system records real estate property and its variation items in a real estate register, and the real estate registration can be used as a certificate for the user to handle financial services such as public deposit.

A real estate registration system is a system created by a single organization that serves users of that organization. The real estate registration system may approve a user submitted real estate registration request, and after approval, upload real estate information onto a blockchain (corresponding to a real estate registry).

Disclosure of Invention

The embodiment of the application provides an real estate title registration supervision method, a device, electronic equipment and a storage medium, wherein an examination is performed on a real estate title registration request in a trusted execution environment, and examined real estate title information is stored in a block, so that the safety and reliability of examination and approval are improved.

In a first aspect, an embodiment of the present application provides a method for supervising real estate property registration, where the method includes: under the condition that an applicant's real estate property registration request is received, acquiring personal information and real estate property information of the applicant; calling a trusted execution environment through an intelligent contract to inspect the personal information of the applicant and the real estate property information to obtain an approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and is higher in security than the real estate property block chain; and under the condition that the approval result indicates that the real estate property registration request passes the approval, storing the real estate property information into a real estate block chain by calling the intelligent contract.

In the embodiment of the application, the trusted execution environment and the blockchain are two independent technical systems, and the mode provided by the application is that the decentralized non-repudiation trust of the blockchain is extended to the lower part of the chain, and trusted hardware is used as the extension of the blockchain trust. That is, the trusted execution environment acts as an extensive complement to the blockchain, assisting the blockchain to do something (e.g., security-critical things), but not belonging to the blockchain. The trusted execution environment is realized by trusted hardware, and the block chain can call the trusted execution environment to execute tasks with high confidentiality through an intelligent contract.

According to the embodiment of the application, the check of the real estate property registration request is carried out in the trusted execution environment, and the real estate property information which passes the examination and approval is stored in the real estate block chain, so that the safety and the reliability of the examination and approval are improved.

In an alternative implementation, before the applicant's personal information and the real estate information are examined by invoking a trusted execution environment through a smart contract to obtain an approval result of the real estate registration request, the method further comprises: registering the trusted execution environment on the real estate property blockchain by the smart contract; initiating a deployment request to the trusted execution environment through the smart contract, the deployment request requesting deployment of a Certificate Authority (CA) certificate in the trusted execution environment; deploying the Certificate Authority (CA) certificate on a target device, wherein the target device is a device in the trusted execution environment. The target device may be a trusted device implementing a trusted execution environment. The method comprises the steps of calling a trusted execution environment through an intelligent contract to review the personal information of the applicant and the real property information, and obtaining the approval result of the real property registration request can be calling the trusted execution environment through the intelligent contract, wherein the trusted execution environment utilizes a CA (certificate Authority) certificate to review the personal information of the applicant and the real property information to obtain the approval result of the real property registration request.

In an alternative implementation, said registering said trusted execution environment on said real estate property blockchain by said smart contract comprises: reading parameters of the trusted execution environment; invoking the smart contract to verify parameters of the trusted execution environment; registering the trusted execution environment with the real estate property blockchain if parameters of the trusted execution environment are verified to be valid.

In an optional implementation manner, after the deploying the certificate authority CA certificate on the target device, the method further includes: and starting the certification authority CA certificate according to the secret key of the trusted execution environment.

In an optional implementation, before registering the trusted execution environment on the real property blockchain by the smart contract, the method further includes: receiving an application request of the certification authority CA certificate of a target domain name; applying for the Certificate Authority (CA) certificate for the target domain name from a certificate authority.

In an optional implementation manner, the applying for the certificate authority CA certificate of the target domain name from a certificate authority includes: sending an application request of the CA certificate of the target domain name to the certificate authority; receiving feedback information corresponding to the application request of the Certificate Authority (CA) certificate, which is sent by the certificate authority, wherein the feedback information comprises a verification key; sending the authentication key to the certificate authority; receiving the Certificate Authority (CA) certificate of the target domain name sent by the certificate authority.

In an optional implementation manner, the feedback information corresponding to the certificate application request further includes a certificate application ID; the receiving the Certificate Authority (CA) certificate of the target domain name sent by the certificate authority includes: sending a Certificate Authority (CA) certificate query request containing the CA certificate application ID to the certificate authority, wherein the CA certificate query request is used for requesting the certificate authority to send the CA certificate of the target domain name to a server; and after receiving the CA certificate of the target domain name sent by the certificate authority, stopping sending the CA certificate inquiry request to the certificate authority.

In an alternative implementation, before the applicant's personal information and the real estate information are examined by invoking a trusted execution environment through a smart contract to obtain an approval result of the real estate registration request, the method further comprises: registering the trusted execution environment with the real estate property block chain via the smart contract; and calling the intelligent contract to verify the function and the validity of the trusted execution environment.

Registering the trusted execution environment with the smart contract on the real estate property blockchain for the purpose of authenticating the functionality and validity of the trusted execution environment (which here includes reading parameters of the trusted environment and invoking the smart contract to remotely verify the trusted execution environment.

The verified trusted execution environment (corresponding to trusted hardware) is combined with the blockchain through an intelligent contract, on the basis of keeping the blockchain decentralized and mutually trusted by users, a program which is high in confidentiality and needs relatively complex computing capacity is executed through the trusted hardware, and an execution result is recorded and verified through the blockchain.

In an optional implementation manner, the invoking, by the smart contract, a trusted execution environment to review the personal information of the applicant and the real estate information, and obtaining an approval result of the real estate registration request includes: calling the trusted execution environment through the intelligent contract to check that the applicant accords with a first application condition and the real estate property information accords with a second application condition, and determining that the approval result of the real estate property registration request is approved; wherein the first application condition is used for verifying that the applicant is free of default behaviors or illegal behaviors, and the second application condition is used for verifying the authenticity of the real property information.

In an optional implementation manner, the verifying that the applicant meets the first application condition by invoking the trusted execution environment through the smart contract includes: after the trusted execution environment is called through the intelligent contract to determine that the personal information of the applicant is real, whether the information item of the applicant meets the first application condition or not is checked.

In an optional implementation manner, the invoking, by the smart contract, a trusted execution environment to review the personal information of the applicant and the real estate information, and obtaining an approval result of the real estate registration request includes: and calling the trusted execution environment through the intelligent contract to check whether the information item of the applicant does not accord with the first application condition or the real property information does not accord with the second application condition, and determining that the approval result of the real property registration request is approval.

In an alternative implementation, the information item of the applicant meeting the first application condition includes at least one of the following: the applicant is a legal owner or a legal agent of the real estate property indicated by the real estate property information, and the applicant does not have illegal records.

In an alternative implementation, the compliance of the real estate property information with the second application condition includes:

the real estate title information carried by the real estate title registration request is the same as the officially registered information, and the real estate title conforms to the conditions for sale or lease.

In an alternative implementation, after storing the real estate property information into a chain of immotile blocks by invoking the smart contract, the method includes: when a real estate service transaction request is received, the real estate service transaction request is transacted, and real estate service transaction information is stored in the real estate block chain.

In a second aspect, an embodiment of the present application provides an apparatus for supervising real estate property registration, where the apparatus includes: a receiving unit for receiving an application real estate right registration request;

an acquisition unit configured to acquire personal information and real estate property information of the applicant;

the checking unit is used for calling a trusted execution environment through an intelligent contract to check the personal information of the applicant and the real estate property information and obtain an approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and is higher in security than the real estate property block chain;

and the registering unit is used for storing the real estate information into the real estate block chain by calling the intelligent contract under the condition that the approval result indicates that the real estate registration request passes the approval.

In an optional implementation manner, the checking unit is specifically configured to invoke the trusted execution environment through the smart contract to check that the approval result of the real estate registration request is approved when the applicant meets the first application condition and the real estate information meets the second application condition; wherein the first application condition is used for verifying that the applicant is free of default behaviors or illegal behaviors, and the second application condition is used for verifying the authenticity of the real property information.

In an optional implementation manner, the checking unit is specifically configured to, after the trusted execution environment is invoked through the smart contract and the personal information of the applicant is determined to be authentic, check whether the information item of the applicant meets the first application condition.

In an optional implementation manner, the checking unit is specifically configured to invoke, by the smart contract, the trusted execution environment to check that the information item of the applicant does not comply with the first application condition or that the real estate information does not comply with the second application condition, and determine that the approval result of the real estate property registration request is approval failure.

In an alternative implementation, the compliance of the real estate property information with the second application condition includes: the real estate title information carried by the real estate title registration request is the same as the officially registered information, and the real estate title conforms to the conditions for sale or lease.

In an optional implementation, the apparatus further comprises: the real estate service transaction unit is used for transacting the real estate service transaction request when receiving the real estate service transaction request; the registration unit is further configured to store the real estate service transaction information into the real estate block chain.

In a third aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a receiver and a transmitter, and further includes: a processor adapted to implement one or more instructions; and a computer storage medium storing one or more instructions adapted to be loaded by the processor and to perform the method according to the first aspect as well as the optional implementations of the first aspect.

In a fourth aspect, the present application provides a computer program product, which includes program instructions, and when executed by a processor, causes the processor to execute the method according to the first aspect and the optional implementation manner in the first aspect.

In a fifth aspect, embodiments of the present application provide a computer storage medium storing one or more instructions adapted to be loaded by a processor and to execute a method according to the first aspect and the implementation manners of the first aspect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1A is a schematic diagram of a data sharing system according to an embodiment of the present application;

fig. 1B is a schematic diagram of a block chain according to an embodiment of the present disclosure;

FIG. 1C is a diagram illustrating a new block generation process according to an embodiment of the present disclosure;

fig. 2 is a flow chart of a monitoring and administration of real estate property registration according to an embodiment of the present application;

FIG. 3 is another real estate property registration supervision flow diagram provided by an embodiment of the application;

fig. 4 is a flowchart of an real estate property processing method provided in an embodiment of the present application;

fig. 5 is a schematic flowchart of a CA certificate deployment method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an apparatus for supervising real estate property registration according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

In order to make the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments.

The terms "first," "second," and "third," etc. in the description and claims of the present application and the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of steps or modules. The methods, systems, articles of manufacture, or apparatus need not be limited to the steps or modules explicitly listed, but may include other steps or modules not explicitly listed or inherent to such processes, methods, articles of manufacture, or apparatus. "and/or" is used to indicate the selection of one or both between two objects to which it is connected.

In a first aspect, an embodiment of the present application provides a method for supervising real estate property registration, where the method includes: under the condition of receiving an real estate property registration request of an applicant, acquiring personal information and real estate property information of the applicant; examining the personal information of the applicant and the real estate property information in a credible execution environment to obtain an approval result of the real estate property registration request; and storing the real estate information in a real estate block chain if the approval result indicates that the real estate registration request passes the approval.

To describe the scheme of the present application more clearly, some background knowledge related to the administration of real estate title registration in the present application is introduced below.

Referring to the data sharing system shown in fig. 1A, the data sharing system 100 refers to a system for performing data sharing between nodes, the data sharing system may include a plurality of nodes 101, and the plurality of nodes 101 may refer to respective clients in the data sharing system. Each node 101 may receive input information while operating normally and maintain shared data within the data sharing system based on the received input information. In order to ensure information intercommunication in the data sharing system, information connection can exist between each node in the data sharing system, and information transmission can be carried out between the nodes through the information connection. For example, when an arbitrary node in the data sharing system receives input information, other nodes in the data sharing system acquire the input information according to a consensus algorithm, and store the input information as data in shared data, so that the data stored on all the nodes in the data sharing system are consistent. In the embodiment of the application, the data sharing system is a real estate registration supervision system.

Each node in the data sharing system has a node identifier corresponding thereto, and each node in the data sharing system may store a node identifier of another node in the data sharing system, so that the generated block is broadcast to the other node in the data sharing system according to the node identifier of the other node in the following. Each node may maintain a node identifier list as shown in the following table, and store the node name and the node identifier in the node identifier list correspondingly. The node identifier may be an IP (Internet Protocol) address and any other information that can be used to identify the node, and table 1 only illustrates the IP address as an example.

Node name node identification

Node 1117.114.151.174

Node 2117.116.189.145

……

Node N119.123.789.258

The functions of each node in the data sharing system comprise:

1) routing, a basic function that a node has, is used to support communication between nodes.

Besides the routing function, the node may also have the following functions:

2) the application is used for being deployed in a block chain, realizing specific services according to actual service requirements, recording data related to the realization functions to form recording data, carrying a digital signature in the recording data to represent a source of task data, and sending the recording data to other nodes in the block chain system, so that the other nodes add the recording data to a temporary block when the source and integrity of the recording data are verified successfully.

For example, the services implemented by the application include:

2.1) wallet, for providing the function of transaction of electronic money, including initiating transaction (i.e. sending the transaction record of current transaction to other nodes in the blockchain system, after the other nodes are successfully verified, storing the record data of transaction in the temporary blocks of the blockchain as the response of confirming the transaction is valid; of course, the wallet also supports the querying of the remaining electronic money in the electronic money address;

and 2.2) sharing the account book, wherein the shared account book is used for providing functions of operations such as storage, query and modification of account data, record data of the operations on the account data are sent to other nodes in the block chain system, and after the other nodes verify the validity, the record data are stored in a temporary block as a response for acknowledging that the account data are valid, and confirmation can be sent to the node initiating the operations.

2.3) Intelligent contracts, computerized agreements, which can enforce the terms of a contract, implemented by codes deployed on a shared ledger for execution when certain conditions are met, for completing automated transactions according to actual business requirement codes, such as querying the logistics status of goods purchased by a buyer, transferring the buyer's electronic money to the merchant's address after the buyer signs for the goods; of course, smart contracts are not limited to executing contracts for trading, but may also execute contracts that process received information.

3) And the block chain comprises a series of blocks (blocks) which are connected with each other according to the generated chronological order, the new blocks cannot be removed once being added into the block chain, and the blocks record the record data submitted by the nodes in the block chain system.

Each node in the data sharing system stores one identical blockchain. The block chain is composed of a plurality of blocks, referring to fig. 1B, the block chain is composed of a plurality of blocks, the starting block includes a block header and a block main body, the block header stores an input information characteristic value, a version number, a timestamp and a difficulty value, and the block main body stores input information; the next block of the starting block takes the starting block as a parent block, the next block also comprises a block head and a block main body, the block head stores the input information characteristic value of the current block, the block head characteristic value of the parent block, the version number, the timestamp and the difficulty value, and the like, so that the block data stored in each block in the block chain is associated with the block data stored in the parent block, and the safety of the input information in the block is ensured.

When each block in the block chain is generated, referring to fig. 1C, when the node where the block chain is located receives the input information, the input information is verified, after the verification is completed, the input information is stored in the memory pool, and the hash tree for recording the input information is updated; and then, updating the updating time stamp to the time when the input information is received, trying different random numbers, and calculating the characteristic value for multiple times, so that the calculated characteristic value can meet the following formula:

SHA256(SHA256(version+prev_hash+merkle_root+ntime+nbits+x))<TARGET

wherein, SHA256 is a characteristic value algorithm used for calculating a characteristic value; version number (version) is version information of related block protocols in the block chain; prev _ hash is a block head characteristic value of a parent block of the current block; merkle _ root is a characteristic value of the input information; ntime is the update time of the update timestamp; nbits is the current difficulty, is a fixed value within a period of time, and is determined again after exceeding a fixed time period; x is a random number; TARGET is a feature threshold, which can be determined from nbits.

Therefore, when the random number meeting the formula is obtained through calculation, the information can be correspondingly stored, and the block head and the block main body are generated to obtain the current block. And then, the node where the block chain is located respectively sends the newly generated blocks to other nodes in the data sharing system where the newly generated blocks are located according to the node identifications of the other nodes in the data sharing system, the newly generated blocks are verified by the other nodes, and the newly generated blocks are added to the block chain stored in the newly generated blocks after the verification is completed.

A Trusted Execution Environment (TEE) is a concept proposed by the global platform organization (GP). Security issues are also of increasing concern for the open environment of mobile devices, not just end users, but also service providers, mobile operators, and chip vendors. The TEE is a runtime environment that co-exists with the Rich OS on the device and provides security services to the Rich OS. It has its own execution space, higher than the security level of Rich OS. TEE can meet the security requirements of most applications. From a cost perspective, TEE provides a balance of safety and cost.

The hardware and software resources that are accessible to the TEE are separate from the Rich OS. The TEE provides a secure execution environment for authorized secure software, Trusted Applications (TAs), while also protecting the resources and data confidentiality, integrity and access rights of the TAs. To ensure the trustworthiness of the TEE itself, the TEE is authenticated and isolated from the Rich OS during secure boot. In TEE, each TA is independent of each other and cannot access each other without authorization.

The GP is elaborated on the standardization of the TEE, and the basic specifications include a TEE internal API, a TEE external API, and, of course, a series of supplementary functional API specifications, and specifications such as application management, debugging functions, and security protection profiles are currently being defined. The internal APIs of the TEE mainly comprise the APIs such as key management, cryptographic algorithm, safe storage, safe clock resources and services, and expanded trusted UI. Trusted UI means that when key information is displayed and user key data (such as password) is input, hardware resources such as screen display and keyboard are completely controlled and accessed by TEE, but software in Rich OS cannot. The internal API is the programming interface provided by the TEE to the TA. The TEE external API is the underlying communication interface for Client Applications (CA) running in Rich OS to access TA services and data.

Real estate registration: the real estate registration system is a fact that a user submits an application for registering real estate to a related organization (corresponding to a real estate registration request), and a real estate registration system or a real estate registration platform records real estate machine change items in a real estate register.

The real estate registration implements a unified registration system, and a user needs to submit materials for real estate registration to a related institution, for example, the user submits applicant identification, house buying and selling contracts, a real estate ownership certificate, a state land use certificate, a house address certificate and the like to a real estate registration system, and the related institution registers the real estate of the user according to the materials.

A digital certificate is a Certification document issued by an Authority for certifying the identity of a user over a network, and the process of issuing a digital certificate may also be referred to as a Certification Authority (CA) process.

CA authentication: namely, the electronic authentication service is an activity for providing authenticity and reliability verification for each party related to the electronic signature.

A certificate authority: i.e., the authority that issued the digital certificate. Is an authority responsible for issuing and managing digital certificates, and serves as a trusted third party in e-commerce transactions, and bears the responsibility for verifying the validity of public keys in a public key system. The CA center issues a digital certificate for each user who uses the public key, and the role of the digital certificate is to prove that the user listed in the certificate has the public key listed in the certificate in a legal manner. The digital signature of the CA authority prevents attackers from forging and tampering with the certificate. In the SET transaction, the CA issues not only certificates to cardholders and merchants, but also to banks and gateways that obtain money. The CA is the issuing authority of certificates, which is the core of PKI. The CA is the authority responsible for issuing certificates, authenticating certificates, and managing issued certificates. It makes policies and specific steps to verify, identify the user's identity, and sign the user's certificate to ensure ownership of the certificate holder's identity and public key. The CA also has a certificate (containing the public key) and a private key. A public user on the network trusts the CA by verifying its signature, and anyone can obtain the CA's certificate (including the public key) to verify the certificate it issued. If the user wants to obtain a certificate belonging to him, he should first apply for it from the CA. After the CA identifies the applicant's identity, it assigns a public key to the applicant, and after the CA binds the public key to the applicant's identity information and signs it, it forms a certificate to the applicant. If a user wants to authenticate the other certificate, he verifies the signature on that certificate with the public key of the CA, and once verified, the certificate is considered valid. In order to ensure the safety, authenticity, reliability, integrity and non-repudiation of information transmitted between users on the internet, the authenticity of the identity of the user needs to be verified, an authority, fairness and uniqueness organization is also needed, and the authority, fairness and uniqueness organization is responsible for issuing and managing electronic commerce safety certificates which accord with the national and international safety electronic transaction protocol standards to each main body of electronic commerce and managing digital certificates required by all individuals participating in the internet transaction, so the authority, authenticity, reliability, integrity and non-repudiation are core links of the safety electronic transaction.

Certificate: a certificate is actually an authentication of a user's public key issued by a Certificate Authority (CA). The content of the certificate includes: information of the electronic visa, public key user information, public keys, signature and expiration date of the authority, etc.

Encryption: CA authentication the process by which we convert text into a form that cannot be read directly (i.e., ciphertext) is called encryption.

And (3) decryption: we refer to the process of converting ciphertext into text that can be read directly (i.e., plaintext) as decryption.

The purpose of signing can be achieved on electronic documents using digital signatures. The RSA public key system can realize digital signature of digital information, and the method comprises the following steps: the message sender uses its private key to operate RSA algorithm on the feature data (or called digital fingerprint) extracted from the transmitted message, so as to ensure that the sender can not repudiate the message once sent (i.e. non-repudiation), and at the same time, ensure that the message is not tampered (i.e. integrity) in the transmission process. When the message receiver receives the message, the digital signature can be verified by the sender's public key. Digital fingerprints, which play an important role in digital signatures, are generated by a special class of HASH functions (HASH functions). The special requirements for these HASH functions are: the received input message data has no length limit; generating a fixed-length abstract (digital fingerprint) output for any input message data; the abstract can be conveniently calculated from the message; it is difficult to generate a message for a specified abstract, and the specified abstract can be calculated by the message; it is difficult to generate two different messages with the same digest.

And (3) verification: the receiver verifies the signature after receiving the message by the following steps: converting the information into a plaintext by using a private key of the user; obtaining an original digest from the digital signature part using a public key of the originator; the receiver performs hash (hash) operation on the source information sent by the receiver and also generates an abstract; the receiver compares the two digests, and if the two digests are the same, the identity of the information signer can be proved. If the contents of the two digests are not consistent, the private key used for signing the digests is not the private key of the signer, which indicates that the signer of the information is not trusted; it is also possible that the received information is not the information sent by the signer at all, and the information has been destroyed or tampered during transmission. The function is as follows: confidentiality (only the recipient can read the message), authentication (confirming the identity of the sender of the message), integrity (the message cannot be tampered during delivery), and non-repudiation (the sender cannot deny the sent message).

Digital certificate: the digital certificate provides electronic authentication for realizing secure communication between two parties. In the internet, corporate intranets or extranets, identification and electronic information encryption is achieved using digital certificates. The digital certificate contains identification information of the public key to the owner, and the identity of the certificate holder is authenticated by verifying the authenticity of the identification information.

The digital certificate is attached with user information and the signature of CA after the user public key. The public key is part of a key pair and the other part is the private key. The public key is disclosed to the public, who can use it. The private key is known only to itself. Information encrypted by a public key can only be decrypted by the private key corresponding thereto. In order to ensure that only one person can read the letter, the sender needs to encrypt the letter by using the public key of the receiver; the recipient can decrypt the letter with its own private key. Similarly, in order to verify the identity of the sender, the sender needs to sign the letter by using the private key of the sender; the recipient can verify the signature using the sender's public key to confirm the identity of the sender.

The digital certificate can be used to verify the identity of the other party in the online transaction. The information is encrypted by the digital certificate, so that the original text can be decrypted and read only by a receiver, and the confidentiality and the integrity of the information in the transmission process can be ensured. The online security can be realized only by the digital certificate, and the security of e-mail, online transaction and credit card shopping can be ensured.

The types of digital certificates are mainly four types: the personal digital certificate is mainly used for identifying the identity of a person owner of the digital certificate, contains personal identity information and public keys thereof, such as user name, certificate number, identity type and the like, and can be used for activities of contract signing, order form, input verification, operation authority, payment information and the like of a person on the internet. The digital certificate of the organization is used for the external activities of the organization in the aspects of e-government affairs and e-business, such as contract signing and the like. The certificate contains organization information, a public key of an organization and a private key signature of the organization, and is used for identifying the real identity of the organization holding the certificate. This certificate corresponds to the official seal of the institution in the real world, and has uniqueness, i.e., only one certificate per institution. The device digital certificate is used for identifying the identity of network devices in network applications, and mainly includes related information of the devices and public keys thereof, such as: the domain name, the website and the like can be used for identifying and verifying the equipment identity in network communication of various network equipment such as a VPN server, a WEB server and the like. The code signing digital certificate is a digital certificate issued to a software provider, contains identity information of the software provider and a public key thereof, is mainly used for proving that a software code issued by a software publisher is from a real software publisher, and can effectively prevent the software code from being tampered.

The application provides a real estate registration supervisory systems, based on block chain technology, can examine and approve real estate property right registration request with the efficient to the security of examining and approving is guaranteed.

Fig. 2 is a flow chart of monitoring for real estate property registration according to an embodiment of the present application, where the embodiment of the present application is applied to a system for monitoring real estate property registration, the system for monitoring real estate property registration includes a block chain, and a device for monitoring real estate property registration is a node in the system for monitoring real estate property registration. The applicant's terminal device may be another node in the mobile property registration supervision system. The method can comprise the following steps:

201. the real estate property registration supervision apparatus acquires the personal information and real estate property information of the applicant when receiving the real estate property registration request of the applicant.

The real estate title registration request is for requesting that personal information of an applicant and real estate title information be uploaded into the immobilizer-property block chain. The real estate property registration policing apparatus may be a blockchain point, such as a server, that provides blockchain services. In some embodiments, the applicant's real estate title registration request includes the applicant's personal information, such as name, identification number, and the like. In some embodiments, the personal information of the applicant includes the personal information of the applicant acquired from the mobile property right registration request and the personal information of the applicant acquired from an official database (e.g., a database of a place). For example, the real estate property registration request of the applicant includes basic personal information such as name, identification number, etc. provided by the applicant, and the real estate property registration supervision apparatus acquires the basic personal information included in the real estate property registration request after receiving the real estate property registration request of the applicant, and acquires the personal information of the applicant, such as illegal records, credit records, addresses, contact addresses, etc., in more detail from the official database.

202. And calling a trusted execution environment through an intelligent contract to examine the personal information of the applicant and the real estate property information to obtain an examination and approval result of the real estate property registration request.

The trusted execution environment is a running environment which is registered to the real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate blockchain and is safer than the real estate blockchain.

In the embodiment of the application, a trusted execution environment and a block chain are two independent technical systems, and the concept of the embodiment of the application is to extend the decentralized non-repudiation trust of the block chain to the lower part of the chain and use trusted hardware as the extension of the block chain trust. To do this trusted extension, at least the following process needs to be done: (1) the trusted execution environment needs to register on the chain through an intelligent contract on the blockchain to authenticate the function and the validity of the trusted execution environment (the function comprises reading the parameter of the trusted environment, calling the intelligent contract and remotely verifying the trusted environment by the intelligent contract), (2) the trusted execution environment is called, which is not a direct trusted hardware calling mode, but effective information is obtained from the intelligent contract on the blockchain, then remote verification is carried out, the trusted execution environment is called after verification is finished, at the moment, the trusted environment also needs to verify the on-chain identity of a calling party, and (3) the trusted execution environment is called, after the result is obtained, the intelligent contract is called again after the calling process or the result needs to be signed, and the calling receipt is written on the chain (corresponding to storing the real property information into the real property blockchain), on the basis of realizing the process, and then completing the corresponding business process solution.

Optionally, the real estate property registration supervising means may perform the following operations before performing step 201: registering the trusted execution environment with the real estate property block chain through the intelligent contract; and calling the intelligent contract to verify the function and the validity of the trusted execution environment.

The purpose of registering the trusted execution environment with the real-estate blockchain via the smart contract is to authenticate the functionality and validity of the trusted execution environment (including reading the parameters of the trusted environment and invoking the smart contract to remotely verify the trusted execution environment.

Illustratively, the real estate property registration supervision device calls the trusted execution environment through the intelligent contract after receiving the real estate property registration request of the applicant and acquiring the personal information of the applicant, and reviews the personal information of the applicant in the trusted execution environment; after the personal information of the applicant passes the examination, examining the real estate property information in the credible execution environment; and if the real estate property information passes the examination, determining that the examination and approval result of the real estate property registration request is approved and approved. That is, the apparatus for supervising and managing real estate property registration may first review the personal information of the application, and if the personal information of the applicant is not reviewed, the result of the approval of the request for real estate property registration is determined as not approved; if the personal information of the applicant passes the examination, the examination of the real estate property information is continued. By the method, the operation of examining the real estate property information can be effectively avoided, and the examination efficiency is high.

The personal information of the applicant and the real estate property information are examined in the trusted execution environment, so that the examination and approval result of the real estate property registration request is obtained, the examination and approval process is guaranteed not to be interfered by malicious programs, and the reliability and the safety of the examination and approval process are improved.

Optionally, the apparatus for supervising real estate property registration may review the personal information of the applicant and the real estate property information in the trusted execution environment by the following means, and obtain the approval result of the request for real estate property registration of the applicant: calling the trusted execution environment through an intelligent contract to check that the information item of the applicant meets a first application condition and the real estate property information meets a second application condition, and determining that the approval result of the real estate property registration request is approved; wherein the first application condition is used for verifying that the applicant does not have a default behavior or a law violation behavior, and the second application condition is used for verifying the authenticity of the real property information.

For example, when the trusted execution environment is invoked by the smart contract to check that the information item of the applicant meets the first application condition, one implementation manner is as follows: after the trusted execution environment is called through the intelligent contract and the personal information of the applicant is determined to be real, the trusted execution environment is called through the intelligent contract to check whether the information item of the applicant meets the first application condition. In some embodiments, the applicant's real estate title registration request includes the applicant's basic personal information, such as name, identification number, etc.; the real estate property registration supervision apparatus can acquire personal information (such as identification number, name, address, etc.) of an applicant from an official database, such as a national institution such as a place of departure or a household registration authority; the real estate property registration supervision device compares the personal information of the applicant obtained from the real estate property registration request with the personal information of the applicant obtained from the official database; if the comparison is passed, the personal information of the applicant is determined to be true, otherwise, the personal information of the applicant is determined to be not true. Alternatively, the apparatus for supervising real estate property registration may directly determine that the result of the approval of the request for real estate property registration does not pass after determining that the personal information of the applicant is not authentic. It should be appreciated that if the personal information, such as the applicant's name and identification number, is incorrect, then the request for real estate property registration provided by the applicant is likely to be spurious. To ensure that the real estate title registration request provided by the applicant is authentic, it is necessary to verify that the applicant's personal information is authentic. This may improve the efficiency of the approval. Optionally, the information item of the applicant meets the first application condition and includes at least one of the following items: the applicant is a legal owner or a legal agent of the real estate property indicated by the real estate property information, and the applicant does not have illegal records. Illustratively, the first application condition is for verifying whether the applicant has a right to sell, lease and issue the real estate property information. Specifically, the first application condition may include at least one of the following conditions: (1) the applicant is the owner of the real estate property; (2) the applicant has the capability of completely civil behavior; (3) an agent (e.g., intermediary) that the applicant delegates to the owner of the real estate property; (4) and the applicant does not record illegally. For example, the real estate title registration supervising means determining that the information item of the applicant meets the first application condition may be: and determining that the applicant meets the conditions (1), (2) and (4) or meets the conditions (2), (3) and (4).

Illustratively, one implementation manner of invoking the trusted execution environment through the smart contract to check that the above-mentioned real estate information meets the second application condition is as follows: the real estate property registration supervision device calls the credible execution environment through the intelligent contract to check that the real estate property information carried by the real estate property registration request is the same as the officially registered information, and the real estate property accords with the conditions of sale or lease. The real estate information may be address, area, layout, property, etc. of real estate. In some embodiments, the applicant's real estate title registration request includes real estate title information, such as address, area, layout, property of real estate title; the real estate property registration supervising means may acquire information of the real estate property indicated by the real estate property registration request (information corresponding to official registration) from an official database, such as a national institution of a house administration; the real estate property registration supervision means determines that the real estate property information satisfies the second application condition when the real estate property information acquired from the real estate property registration request is the same as the real estate property information acquired from the official database and the real estate property information satisfies the conditions for sale or lease. It should be understood that the real estate property registration supervising means may also determine whether the real estate property information carried by the real estate property registration request is the same as the officially registered information in other ways, and the application is not limited thereto.

203. And in the case that the approval result indicates that the real estate registration request passes the approval, storing the real estate information in a real estate block chain by calling the intelligent contract.

Optionally, the real estate title registration supervising apparatus uses the real estate title registration request and the approval result as input information of the real estate block chain, and generates a block for recording the real estate title registration request and the approval result of the applicant. The real estate property registration supervising device can make other nodes in the real estate property registration supervising system know the real estate property registration request and approval result of the applicant by generating a block for recording the real estate property registration request and approval result of the applicant. By generating a blockchain for recording the real estate property registration request and the approval result of the applicant, the safety of the real estate property registration request and the approval result information can be improved, and the real estate property registration request and the approval result information are not easily modified or stolen maliciously.

The real estate property registration supervision device takes the real estate property registration request and the examination and approval result as the input information of the block chain in the real estate property registration supervision system, and generates a block for recording the real estate property registration request and the examination and approval result of an applicant, and the block specifically comprises the following steps: the real estate property registration supervision device checks the real estate property registration request and the approval result of the applicant as input information, and then updates the hash tree for recording the input information. And after the Hash tree is updated, the real estate property registration supervision device updates the time stamp to be the time when the approval result is obtained. After the real estate property registration supervising means has updated the time stamp, the real estate property registration supervising means calculates the characteristic value of the input information by trying different random numbers. After determining the version number, the block head characteristic value of the parent block, the current difficulty value and the characteristic value of the input information, the real estate property registration supervision device packs the version number, the block head characteristic value of the parent block, the current difficulty value, the characteristic value of the input information and the input information into blocks and generates blocks for recording real estate property registration requests and approval results of applicants. After the real estate property registration supervision apparatus generates the block for recording the real estate property registration request and approval result of the applicant, the block is broadcasted in the real estate property registration supervision system so that the node in the real estate property registration supervision system checks the block, and after the check is completed, the newly generated block is added to the block chain stored by the block.

Fig. 3 is another real estate property registration supervision flowchart provided by the embodiment of the present application, and the method shown in fig. 3 is a further refinement and refinement of the method shown in fig. 2. The method can comprise the following steps:

301. the real estate property registration supervision apparatus acquires the personal information and real estate property information of the applicant when receiving the real estate property registration request of the applicant.

Optionally, the personal information includes at least one information item for verifying existence of a default behavior or an illegal behavior of the applicant. It should be understood that the personal information of the applicant carried by the real property right registration request is not really a kind of breach or law violation.

302. Whether the information item of the applicant meets the first application condition is checked by calling an intelligent contract.

If the first application condition is not met, step 30 is executed, that is, the approval result of the real estate property right registration request is determined to be not approved; if the first application condition is satisfied, step 303 is executed.

Illustratively, one implementation of checking the information items of the applicant meet the first application condition by invoking an intelligent contract is as follows: after the personal information of the applicant is determined to be true by calling the intelligent contract, whether the information item of the applicant meets the first application condition is checked. In some embodiments, the applicant's real estate title registration request includes the applicant's basic personal information, such as name, identification number, etc.; the real estate property registration supervision apparatus can acquire personal information (such as identification number, name, address, etc.) of an applicant from an official database, such as a national institution such as a place of departure or a household registration authority; the real estate property registration supervision device compares the personal information of the applicant obtained from the real estate property registration request with the personal information of the applicant obtained from the official database; if the comparison is passed, the personal information of the applicant is determined to be true, otherwise, the personal information of the applicant is determined to be not true. Alternatively, the apparatus for supervising real estate property registration may directly determine that the result of the approval of the request for real estate property registration does not pass after determining that the personal information of the applicant is not authentic.

303. And in the case that the information item of the applicant accords with the first application condition, checking whether the real property information accords with the second application condition by calling the intelligent contract.

If the second application condition is satisfied, go to step 304; and if the second application condition is not met, executing the step.

Steps

302 and 302 correspond to step 202 of fig. 2, namely, the personal information of the applicant and the real property information are examined in the trusted execution environment.

Illustratively, one implementation manner for checking the real estate property information according to the second application condition by calling the intelligent contract is as follows: the real estate property registration supervision device checks that the real estate property information carried by the real estate property registration request is the same as the officially registered information by calling the intelligent contract, and the real estate property meets the conditions of sale or lease. The real estate information may be address, area, layout, property, etc. of real estate. In some embodiments, the applicant's real estate title registration request includes real estate title information, such as address, area, layout, property of real estate title; the real estate property registration supervising means may acquire information of the real estate property indicated by the real estate property registration request (information corresponding to official registration) from an official database, such as a national institution of a house administration; the real estate property registration supervision means determines that the real estate property information satisfies the second application condition when the real estate property information acquired from the real estate property registration request is the same as the real estate property information acquired from the official database and the real estate property information satisfies the conditions for sale or lease.

In the trusted execution environment, it is necessary to review the personal information of the applicant and the real estate property information, so that the personal information, the real estate property information and the approval result are prevented from being tampered, the private data of the applicant is prevented from being leaked, and the security of the data and the reliability of the approval result are ensured.

304. And storing the real estate property information into the real estate block chain.

305. A real estate service transaction request is received.

The real estate service transaction request is for updating the real estate property information or the applicant's personal information. For example, a real estate service transaction request is for requesting a change to the owner of real estate property, known as a passerby.

306. And updating the real property right information according to the real property business transaction request.

307. And determining that the approval result of the real estate property registration request is that the approval is not passed.

In some embodiments, the apparatus for supervising real estate registration may further generate an evidence of real estate according to the approval result after determining that the approval result of the request for real estate registration is approved, store the evidence of real estate into the chain of real estate blocks, and then handle the request for real estate services using the evidence of real estate. The following description details this process.

Fig. 4 is a flowchart of an embodiment of an real estate property information processing method, as shown in fig. 4, the method includes:

401. the real estate property registration supervision apparatus acquires the personal information and real estate property information of the applicant when receiving the real estate property registration request of the applicant.

402. And calling a trusted execution environment through an intelligent contract to inspect the personal information of the applicant and the real estate property information to obtain an approval result of the real estate property registration request.

403. And generating an real estate certificate according to the approval result, and storing the real estate certificate into a real estate block chain by calling the intelligent contract.

Optionally, other nodes in the immotile chain update the stored information of the immotile chain.

404. And when the real estate service transaction request is received, the real estate service transaction request is transacted according to the real estate property certificate, and the real estate service transaction information is stored in the real estate block chain.

Optionally, the real estate service transaction request comprises: at least one of a request for processing the accumulation fund, a request for processing the transfer fund, and a request for processing the inheritance fund. Optionally, the real property right registration supervision apparatus generates a real property query request according to the real property business transaction request, where the real property query request is used to query a real property right certificate corresponding to the user account transacting the business. The real estate property registration supervision device obtains the real estate property certificate from the real estate block chain, verifies the real estate property certificate, handles the real estate service request when the verification is passed, and stores real estate service handling information into the real estate block chain.

In summary, based on the real estate block chain technology, the real estate property certificate is generated at the block chain link points, when a user uses real estate property information to transact real estate services, the block chain link points only need to transact the real estate services according to the real estate property certificate stored in the real estate block chain, related materials are not required to be repeatedly submitted by the user in multiple mechanisms, the service transaction efficiency is improved, meanwhile, the service transaction information is also stored in the real estate block chain, and real-time updating of the real estate related information is guaranteed.

In some embodiments, the trusted execution environment may verify the authenticity of the applicant's personal information and real property information (e.g., real property ticket) through a deployed CA certificate. The following describes a method of deploying CA certificates to a trusted execution environment.

Referring to fig. 5, fig. 5 is a schematic flowchart of a CA certificate deployment method according to an embodiment of the present application.

501. The real estate property registration supervision apparatus registers the trusted execution environment on the block chain by the intelligent contract.

The trusted execution environment needs to register on the blockchain through an intelligent contract to authenticate functions and validity of the trusted execution environment, wherein the registration process specifically comprises reading parameters of the trusted execution environment, calling the intelligent contract, remotely verifying the trusted execution environment through the intelligent contract, and registering the trusted execution environment in the blockchain under the condition that the parameters of the trusted execution environment are verified to be valid. The registration process here can refer to the Intel TCF framework. The TCF uses a distributed account to implement the on-chain registration. An Enterprise Ethereum Alliance (EEA) establishes an offline trusted computing standard, and the TCF is implemented according to the standard, and can support the functions of various block chains TCF, thereby improving the block chain throughput and privacy. The specific registration process mainly comprises the following steps: and completing initialization of the task, completing a certificate of the task, and submitting verification of the completion of the certificate to the chain. Therefore, in the subsequent searching process, a task can be found on the chain, the authentication information of the task can be verified, and the public key of the task can be stored.

502. And calling the trusted execution environment according to the information of the intelligent contract.

And calling the trusted execution environment, wherein the trusted execution environment is not a direct trusted hardware calling mode, but effective information is obtained from an intelligent contract first, then remote verification is carried out, the trusted execution environment is called after verification is finished, and optionally, the trusted execution environment may need to verify the on-chain identity of a calling party. The main processes of invoking a trusted execution environment include: requesting to create a payload of the task, encrypting a symmetric key and signing the symmetric key by using a public key of the task, submitting the task to a block chain and creating a receipt, verifying the signature after receiving the task, encrypting a result by using the symmetric key, signing by using a signature key of the symmetric key, and calling the trusted execution environment if the verification is valid. And after the trusted execution environment is called and the result is obtained, calling the intelligent contract again after the calling process or the result needs to be signed, and writing the calling receipt into the chain.

503. And initiating a deployment request to the trusted execution environment.

The current trusted execution environment is mainly a trusted execution environment built based on a secure area of a processor in a smart terminal device (such as a smart phone). The TEE is an independent execution area that provides many security attributes such as isolation, integrity, etc., while the TEE also ensures the security of the code and data loaded into the TEE. The TEE is a technical solution proposed to solve security risks existing in current mobile terminal devices. In order to ensure the security of CA certificate deployment, it is an effective method to deploy a CA certificate on a terminal device of a trusted execution environment, and therefore a deployment request is initiated to the trusted execution environment, the purpose of the deployment request being to request the deployment of an authentication authorization CA certificate in the trusted execution environment.

504. The CA certificate is deployed on the target device.

The target device may be a trusted device implementing a trusted execution environment. After the CA certificate is deployed to the target equipment in the trusted execution environment, the trusted execution environment can analyze the CA certificate through the key of the trusted execution environment, so that the CA certificate is started.

In the embodiment of the present application, the CA certificate may be deployed on the target device, so that the trusted execution environment can verify the submitted information of the applicant by using the CA certificate.

Fig. 6 is a schematic diagram of an apparatus for supervising real estate property registration, according to an embodiment of the present application, and as shown in fig. 6, the apparatus may include:

a receiving unit 601, configured to receive an application's real estate property registration request;

an acquiring unit 602, configured to acquire personal information and real estate property information of the applicant;

a checking unit 603, configured to invoke a trusted execution environment through an intelligent contract to check the personal information of the applicant and the real estate property information, and obtain an approval result of the real estate property registration request, where the trusted execution environment is an execution environment that is registered in a real estate property block chain through the intelligent contract and passes authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and has higher security than the real estate property block chain;

a registering unit 604, configured to, in a case that the approval result indicates that the real estate registration request passes the approval, store the real estate information into the real estate block chain by calling the smart contract.

In an alternative implementation, the personal information includes at least one information item for verifying that the applicant has a default behavior or an illegal behavior; a checking unit 603, specifically configured to invoke the trusted execution environment through the smart contract to check that the approval result of the real estate property registration request is approved when the information item of the applicant meets a first application condition and the real estate property information meets a second application condition; wherein the first application condition is used for verifying that the applicant does not have a default behavior or a law violation behavior, and the second application condition is used for verifying the authenticity of the real property information.

In an alternative implementation manner, the checking unit 603 is specifically configured to invoke the trusted execution environment through the smart contract, and in the trusted execution environment, after determining that the personal information of the applicant is authentic, check whether the information item of the applicant meets the first application condition.

In an alternative implementation, the examining unit 603 is specifically configured to invoke the trusted execution environment through the smart contract to examine that the approval result of the real estate registration request is not passed if the information item of the applicant does not meet the first application condition or the real estate information does not meet the second application condition.

In an alternative implementation, the information item of the applicant meeting the first application condition includes at least one of the following items: the applicant is a legal owner or a legal agent of the real estate property indicated by the real estate property information, and the applicant does not have illegal records.

In an alternative implementation manner, the compliance of the real estate property information with the second application condition includes: the real estate property information carried by the real estate property registration request is the same as the officially registered information, and the real estate property is in accordance with the conditions for sale or lease.

In an optional implementation manner, the apparatus further includes: a service transaction unit 605, configured to, when receiving a real estate service transaction request, transact the real estate service transaction request; the registering unit 604 is further configured to store the real estate service transaction information in the above-mentioned real estate block chain.

It should be understood that the division of the modules of the above real estate property registration supervision apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. For example, the above modules may be processing elements which are set up separately, or may be implemented by integrating the same chip, or may be stored in a storage element of the controller in the form of program codes, and a certain processing element of the processor calls and executes the functions of the above modules. In addition, the modules can be integrated together or can be independently realized. The processing element may be an integrated circuit chip having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. The processing element may be a general-purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above method, such as: one or more application-specific integrated circuits (ASICs), one or more microprocessors (DSPs), one or more field-programmable gate arrays (FPGAs), etc.

Fig. 7 is a schematic structural diagram of an electronic device 700 according to an embodiment of the present disclosure, where the electronic device 700 may have a relatively large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 722 (e.g., one or more processors) and a memory 732, and one or more storage media 730 (e.g., one or more mass storage devices) storing an application 742 or data 744. Memory 732 and storage medium 730 may be, among other things, transient storage or persistent storage. The program stored in the storage medium 730 may include one or more modules (not shown), each of which may include a series of instruction operations for the server. Further, the central processor 722 may be configured to communicate with the storage medium 730, and execute a series of instruction operations in the storage medium 730 on the electronic device 700. The electronic device 700 may be the real estate property registration supervising means provided by the present application. The central processor 722 may implement the functions of the inspection unit 603, the registration unit 604, and the service transaction unit 605 in fig. 6.

The electronic device 700 may further include one or more power supplies 726, one or more wired or wireless network interfaces 750, one or more input-output interfaces 758, and/or one or more operating systems 741, such as Windows ServerTM, Mac OS XTM, UnixTM, &lTtTtranslation = L "&gTtL &lTt/T &gTtinxTM, FreeBSDTM, etc. the wired or wireless network interfaces 750 may implement the functions of the receiving unit 601 and the obtaining unit 602 in FIG. 6.

The steps performed by the real estate registration supervising means in the above embodiments may be based on the electronic equipment structure shown in fig. 7.

In an embodiment of the present application, there is provided a computer-readable storage medium having one or more instructions stored thereon, which when executed by a processor, implement: under the condition of receiving an real estate property registration request of an applicant, acquiring personal information and real estate property information of the applicant; calling a trusted execution environment through an intelligent contract to examine the personal information of the applicant and the real estate property information to obtain an examination and approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and has higher security than the real estate property block chain; and in the case that the approval result indicates that the real estate registration request passes the approval, storing the real estate information in a real estate block chain by calling the intelligent contract.

In an embodiment of the present application, there is provided a computer program product comprising program instructions that when executed by a processor implement: under the condition of receiving an real estate property registration request of an applicant, acquiring personal information and real estate property information of the applicant; calling a trusted execution environment through an intelligent contract to examine the personal information of the applicant and the real estate property information to obtain an examination and approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and has higher security than the real estate property block chain; and in the case that the approval result indicates that the real estate registration request passes the approval, storing the real estate information in a real estate block chain by calling the intelligent contract.

The above is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An real estate property registration supervisory method, comprising:

under the condition that an applicant's real estate property registration request is received, acquiring personal information and real estate property information of the applicant;

calling a trusted execution environment through an intelligent contract to inspect the personal information of the applicant and the real estate property information to obtain an approval result of the real estate property registration request, wherein the trusted execution environment is an operation environment which is registered to a real estate property block chain through the intelligent contract and passes the authentication of the intelligent contract; the trusted execution environment is independent of the real estate property block chain and is higher in security than the real estate property block chain;

and storing the real estate information into the immotile chain by calling the intelligent contract if the approval result indicates that the real estate registration request passes the approval.

2. The method of claim 1, wherein before the applicant's personal information and the real property information are reviewed by invoking a trusted execution environment through a smart contract to obtain an approval result of the real property registration request, the method further comprises:

registering the trusted execution environment on the real estate property blockchain by the smart contract;

initiating a deployment request to the trusted execution environment through the smart contract, the deployment request requesting deployment of a Certificate Authority (CA) certificate in the trusted execution environment;

deploying the Certificate Authority (CA) certificate on a target device, wherein the target device is a device in the trusted execution environment.

3. The method according to claim 1 or 2, wherein the invoking of the trusted execution environment by the smart contract to review the personal information of the applicant and the real property information to obtain the approval result of the real property registration request comprises:

calling the trusted execution environment through the intelligent contract to check that the applicant accords with a first application condition and the real estate property information accords with a second application condition, and determining that the approval result of the real estate property registration request is approved; wherein the first application condition is used for verifying that the applicant is free of default behaviors or illegal behaviors, and the second application condition is used for verifying the authenticity of the real property information.

4. The method of claim 3, wherein verifying that the applicant meets a first application condition upon invoking the trusted execution environment via the smart contract comprises:

after the trusted execution environment is called through the intelligent contract to determine that the personal information of the applicant is real, whether the information item of the applicant meets the first application condition or not is checked.

5. The method according to claim 1 or 2, wherein the invoking of the trusted execution environment by the smart contract to review the personal information of the applicant and the real property information to obtain the approval result of the real property registration request comprises:

and calling the trusted execution environment through the intelligent contract to check whether the information item of the applicant does not accord with the first application condition or the real property information does not accord with the second application condition, and determining that the approval result of the real property registration request is approval.

6. The method according to any one of claims 2-5, wherein the information item of the applicant complying with the first application condition comprises at least one of: the applicant is a legal owner or a legal agent of the real estate property indicated by the real estate property information, and the applicant does not have illegal records.

7. The method of claim 6, wherein the compliance of the real estate property information with the second application conditions comprises:

8. An apparatus for supervising real estate property registration, comprising:

a receiving unit for receiving an application real estate right registration request;

9. An electronic device comprising a receiver and a transmitter, characterized by further comprising:

a processor adapted to implement one or more instructions; and the number of the first and second groups,

a computer storage medium having stored thereon one or more instructions adapted to be loaded by the processor and to execute the real estate registration supervisory method according to any of claims 1-7.

10. A computer storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to perform the real estate registration supervisory method of any of claims 1-7.