CN105976232B - Asset transaction method and device - Google Patents

Asset transaction method and device Download PDF

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Publication number
CN105976232B
CN105976232B CN201610474199.0A CN201610474199A CN105976232B CN 105976232 B CN105976232 B CN 105976232B CN 201610474199 A CN201610474199 A CN 201610474199A CN 105976232 B CN105976232 B CN 105976232B
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China
Prior art keywords
transaction
data
asset
blockchain
block chain
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CN201610474199.0A
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Chinese (zh)
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CN105976232A (en
Inventor
张开翔
万磊
范瑞彬
卢道和
姚辉亚
莫楠
苏小康
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深圳前海微众银行股份有限公司
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Publication of CN105976232A publication Critical patent/CN105976232A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce, e.g. shopping or e-commerce
    • G06Q30/06Buying, selling or leasing transactions
    • G06Q30/0601Electronic shopping
    • G06Q30/0613Third-party assisted
    • G06Q30/0617Representative agent
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/32Cryptographic mechanisms or cryptographic arrangements for secret or secure communication including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247Cryptographic mechanisms or cryptographic arrangements for secret or secure communication including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures

Abstract

The invention discloses an asset transaction method and a system, wherein the asset transaction method comprises the following steps: the affiliate signs the acquired first transaction request, sends the signed first transaction request to a blockchain network constructed on the basis of a P2P network, the issuer constructs first transaction response data on the basis of the first transaction request acquired from the blockchain network, and sends the first transaction response data to the blockchain network so that the blockchain link points responsible for accounting on the blockchain network confirm the validity of the first transaction response data and write the valid first transaction response data into the blockchain data block, and the affiliate acquires the blockchain data block through the blockchain network to complete asset transaction with the issuer. The invention reduces the transaction flow of the issuing organization and the affiliate in the asset transaction process, reduces the risk of data tampering, reduces the cost of asset transaction confirmation, and simultaneously reduces the operation and maintenance cost of the block chain network.

Description

Asset transaction method and device

Technical Field

The invention relates to the technical field of data processing, in particular to an asset transaction method and device.

Background

In a conventional financial IT (Internet Technology ) system, in a blockchain network, all institutions participating in a transaction have their own ledgers and maintain their own ledgers, and each institution communicates with other institutions using a centralized network, but during the communication, communication between the institutions is interrupted due to failure and restriction policies such as a gateway, an agent, and a central server, or additional cost on the communication flow is increased. In the traditional mode, data are owned by all organizations, modification operation is easy to carry out, and authenticity and validity of transaction data among all the organizations are difficult to verify. And the data are independently stored in data centers in each mechanism, the data records are different, the data formats are different, complex mutual comparison is required to be carried out to confirm the consistency of the data, account checking is carried out in modes of batch data exchange, daily and final account checking and the like to determine the asset transaction condition of each mechanism, the transaction confirmation time is long, and the construction and operation and maintenance cost of the block chain network is high.

Disclosure of Invention

The invention mainly aims to provide an asset transaction method and device, and aims to solve the technical problems that data are easy to tamper, each mechanism has long asset transaction confirmation time, and the operation and maintenance cost of a block chain network is high in the existing asset transaction process.

In order to achieve the above object, the present invention provides an asset transaction method, including:

when acquiring a first transaction request, a proxy mechanism signs the first transaction request through a pre-stored private key and sends the signed first transaction request to a block chain network, wherein the block chain network is constructed based on a P2P peer-to-peer network;

when an issuing mechanism receives a first transaction request sent by an affiliate through a blockchain network, the issuing mechanism constructs corresponding first transaction response data according to a blockchain data format based on the first transaction request, sends the first transaction response data to the blockchain network so that a blockchain link point responsible for accounting on the blockchain network confirms the validity of the first transaction response data through a consensus mechanism, writes the valid first transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network;

the affiliate obtains the blockchain data block through the blockchain network to complete the asset transaction with the issuer.

Preferably, before the step of when the affiliate acquires the first transaction request, the affiliate signs the first transaction request through a pre-stored private key and sends the signed first transaction request to the blockchain network, the method further includes:

the issuing mechanism and the affiliate are accessed into a blockchain network constructed based on a P2P peer-to-peer network;

the issuing organization creates assets according to a preset flow and packages the assets into an issuing transaction data packet according to a block chain data format;

the issuing mechanism issues the issued transaction data packet to the block chain network so that a block chain link point responsible for accounting on the block chain network writes the transaction data packet into a block chain data block, and sends the block chain data block to the block chain network;

and the affiliate acquires the transaction data packet in the blockchain data block through the blockchain network and confirms that the issuer has the assets to be traded.

Preferably, when the affiliate acquires the first transaction request, the affiliate signs the first transaction request through a private key pre-stored in the affiliate, and the step of sending the signed first transaction request to the blockchain network includes:

when acquiring a first transaction request, an agency checks the validity of the first transaction request;

if the first transaction request is valid, the affiliate encrypts private information in the first transaction request, and packages the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;

and the affiliate signs the packaged first transaction request through a prestored private key and sends the signed first transaction request to the block chain network.

Preferably, after the step of the affiliate obtaining the blockchain data block through the blockchain network to complete the asset transaction with the issuer, the method further comprises:

when the issuing mechanism receives an inquiry instruction for inquiring the asset transaction data, the issuing mechanism inquires the asset transaction data in a block chain database according to the identification information corresponding to the asset transaction data, wherein each asset transaction is provided with corresponding identification information;

and when the affiliate mechanism receives a query instruction for querying the asset transaction data, the affiliate mechanism queries the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data.

Preferably, after the step of the affiliate obtaining the blockchain data block through the blockchain network to complete the asset transaction with the issuer, the method further comprises:

when the issuing mechanism and the affiliate mechanism receive clearing instructions, the issuing mechanism and the affiliate mechanism clear asset transaction data within preset time to obtain asset transaction conditions.

Preferably, the asset transaction method further comprises:

when the affiliate of the transferred asset receives a second transaction request, the affiliate of the transferred asset signs the second transaction request through a pre-stored private key and sends the signed second transaction request to the block chain network;

when an affiliate mechanism receiving the asset receives the second transaction request through the blockchain network, the affiliate mechanism receiving the asset constructs corresponding second transaction response data according to a blockchain data format based on the second transaction request, sends the second transaction response data to the blockchain network so that a blockchain link point in charge of accounting on the blockchain network confirms the validity of the second transaction response data through a consensus mechanism, writes the valid second transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network;

and the affiliate mechanism of the roll-out asset acquires the blockchain data block through the blockchain network so as to transfer the asset corresponding to the second transaction request to the affiliate mechanism of the receiving asset.

Further, to achieve the above object, the present invention also provides an asset transaction system including an issuing authority and a affiliate:

the agency comprises a first signature module, and is used for signing the first transaction request through a prestored private key when the first transaction request is obtained, and sending the signed first transaction request to a block chain network;

the issuing mechanism comprises a first sending module, a second sending module and a third sending module, wherein the first sending module is used for constructing corresponding first transaction response data according to a block chain data format based on a first transaction request when the first transaction request sent by the affiliate mechanism is received through the block chain network, sending the first transaction response data to the block chain network so that a block chain link point which is responsible for accounting on the block chain network confirms the validity of the first transaction response data through a common identification mechanism, writing the valid first transaction response data into a block chain data block, and sending the block chain data block to the block chain network;

the affiliate also includes a first acquisition module for acquiring the blockchain data blocks over the blockchain network to complete an asset transaction with the issuer.

Preferably, the issuing authority further comprises:

the first access module is used for accessing a block chain network constructed based on a P2P peer-to-peer network;

the system comprises a packaging module, a transaction module and a transaction module, wherein the packaging module is used for creating assets according to a preset flow and packaging the assets into an issuing transaction data packet according to a block chain data format;

the issuing module is used for issuing the issued transaction data packet to the block chain network so that a block chain link point responsible for accounting on the block chain network writes the transaction data packet into a block chain data block and sends the block chain data block to the block chain network;

the mechanism of sells still includes:

the second access module is used for accessing into a block chain network constructed based on the P2P peer-to-peer network;

the first obtaining module is further configured to obtain the transaction data packet in the blockchain data block through the blockchain network, and confirm that the issuer has the assets that can be traded.

Preferably, the first signature module comprises:

the checking unit is used for checking the validity of the first transaction request when the first transaction request is acquired;

the encryption unit is used for encrypting the private information in the first transaction request if the first transaction request is valid, and packaging the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;

and the signature unit is used for signing the packaged first transaction request through a prestored private key and sending the signed first transaction request to the block chain network.

Preferably, the issuing authority further comprises:

the system comprises a first query module, a second query module and a third query module, wherein the first query module is used for querying asset transaction data in a block chain database according to identification information corresponding to the asset transaction data when a query instruction for querying the asset transaction data is received, and the corresponding identification information is set in each asset transaction;

the first clearing module is used for clearing the asset transaction data within the preset time to obtain the asset transaction condition when receiving the clearing instruction;

the mechanism of sells still includes:

the second query module is used for querying the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data when a query instruction for querying the asset transaction data is received;

and the second clearing module is used for clearing the asset transaction data in the preset time to obtain the asset transaction condition when receiving the clearing instruction.

Preferably, the affiliate mechanism includes an affiliate mechanism that rolls out of the asset and an affiliate mechanism that receives the asset;

the affiliate of the roll-out asset comprises a second signature module, and the second signature module is used for signing the second transaction request through a prestored private key when receiving the second transaction request and sending the signed second transaction request to the block chain network;

the asset receiving affiliation mechanism comprises a second sending module, wherein the second sending module is used for constructing corresponding second transaction response data according to a blockchain data format based on the second transaction request when the second transaction request is received through the blockchain network, sending the second transaction response data to the blockchain network so that a blockchain link point which is responsible for accounting on the blockchain network confirms the validity of the second transaction response data through a consensus mechanism, writing the valid second transaction response data into a blockchain data block, and sending the blockchain data block into the blockchain network;

the affiliate mechanism for transferring assets further comprises a second acquisition module, configured to acquire the blockchain data block through the blockchain network, so as to transfer the asset corresponding to the second transaction request to the affiliate mechanism for receiving the asset.

The method comprises the steps that a first transaction request is obtained by an affiliate and signed, the signed first transaction request is sent to a block chain network constructed on the basis of a P2P peer-to-peer network, an issuer constructs first transaction response data on the basis of the first transaction request obtained from the block chain network, the first transaction response data are sent to the block chain network, block chain nodes responsible for accounting on the block chain network confirm the effectiveness of the first transaction response data through a consensus mechanism, the effective first transaction response data are written into block chain data blocks, the block chain data blocks are sent to the block chain network, and the affiliate obtains the block chain data blocks through the block chain network to complete asset transaction between the affiliate and the issuer. The block chain network is constructed by using the P2P peer-to-peer network, so that the issuing mechanism and the affiliate mechanism in the block chain network can directly communicate among all nodes in the block chain network without communicating through agents, and the transaction flow of the issuing mechanism and the affiliate mechanism in the asset transaction process is reduced; the common recognition mechanism is used for confirming the data of the issuing organization and the affiliation organization in the asset transaction process, and other organizations do not need to be entrusted to confirm the data in the asset transaction process, so that the risk of data tampering is reduced, the asset transaction confirmation cost is reduced, and the operation and maintenance cost of the block chain network is reduced.

Drawings

FIG. 1 is a schematic flow chart diagram of a first embodiment of an asset transaction method of the present invention;

FIG. 2 is a schematic flow chart diagram of a second embodiment of an asset transaction method of the present invention;

FIG. 3 is a schematic flow chart diagram of a third embodiment of an asset transaction method of the present invention;

FIG. 4 is a schematic flow chart diagram of a fourth embodiment of an asset transaction method of the present invention;

FIG. 5 is a functional block diagram of a first embodiment of an asset transaction system of the present invention;

FIG. 6 is a functional block diagram of a second embodiment of an asset transaction system of the present invention;

FIG. 7 is a functional block diagram of a third embodiment of an asset transaction system of the present invention;

fig. 8 is a functional block diagram of a fourth embodiment of an asset transaction system of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides an asset transaction method.

Referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of an asset transaction method of the present invention.

In this embodiment, the asset transaction method includes:

step S10, when acquiring a first transaction request, the agency signs the first transaction request through a pre-stored private key and sends the signed first transaction request to a blockchain network, wherein the blockchain network is constructed based on a P2P peer-to-peer network;

in a blockchain network, acquiring a first transaction request by an affiliate, wherein the first transaction request can be a purchase request submitted by a user in the affiliate to purchase an asset in an issuer, and the amount of the purchased asset in the purchase request can be determined by the user; the first transaction request may also be a redemption request issued by a user to a sponsoring authority to redeem an asset after expiration of an expiration date of the asset in a user of the sponsoring authority. When the affiliate obtains the first transaction request, the affiliate signs the first transaction request through a pre-stored private key and sends the signed first transaction request to the blockchain network according to the blockchain protocol format. The affiliate and the issuer both have their corresponding unique public and private keys.

It should be noted that an organization is a member that is added to the block chain network and can operate independently, and the organization has certain assets and its own user group. In the context of asset transactions, there are two roles of organization: an issuer and a reseller. The issuer has the authority to issue assets, and a share of assets can be created and issued in the blockchain network. The said agency can sell the property to the user managed by the agency or transfer the property to other agency after the business agreement with the issuing agency. The user is a personal user who has a contract with the affiliate, the affiliate manages the data and assets of the user, and when the user needs to trade the assets, the affiliate needs to transact related procedures.

The blockchain network is essentially a decentralized distributed ledger database, which is the underlying technology of bitcoin. The blockchain itself is actually a string of data blocks generated by using cryptographic correlation, and each data block contains information for validating multiple blockchain network transactions. The blockchain network is constructed based on a P2P (Peer-to-Peer) network. In a P2P network, nodes can communicate directly with each other to form a peer-to-peer mesh structure, and data generated by one node can simultaneously transmit broadcast to other nodes in the network, and can also query and acquire data from any other node in the network. The nodes are specially designated to participate in the blockchain network for asset transaction and data exchange, each independent affiliate and issuer can have one or more nodes, and each node is a combination of a group of physical networks, computers, application software of the blockchain network and databases.

The assets include but are not limited to regular financial products in the financial field, such as bonds, real objects, certificates, information entities and other products. The value of the assets can be defined by the legal currency, and can also be defined by the partners under specific business scenes, and the assets can have the attributes of total number upper limit, validity period and the like. The assets are issued by a specific issuing organization, and the affiliate can purchase assets, transfer assets and keep the assets in circulation on the blockchain network; when the expiration date of the asset has expired, the affiliate may redeem the asset to the issuer for redemption as a french coin or other form of other asset.

Further, the step S10 includes:

step a, when a proxy mechanism acquires a first transaction request, the proxy mechanism checks the validity of the first transaction request;

b, if the first transaction request is effective, the agency encrypts private information in the first transaction request, and packages the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;

and c, the affiliate signs the packaged first transaction request through a prestored private key and sends the signed first transaction request to the block chain network.

When the first transaction request is a purchase request, namely when the affiliate acquires the purchase request, the affiliate checks the validity of the purchase request according to a pre-stored user management rule, namely checks whether a user corresponding to the purchase request has enough purchasing power, wherein the user management rule is a rule defined by the affiliate for managing users who have a subscription relationship with the affiliate. If the user corresponding to the purchase request has enough purchasing power, the purchase request is indicated to be effective. When the purchase request is valid, the affiliate mechanism obtains the private information in the purchase request, and encrypts the private information in the purchase request through an ECC (Elliptic curve Cryptography) encryption algorithm, where the private information in the purchase request includes, but is not limited to, a name, a mobile phone number, an identity card number, an account, a home address, or a company address of a user corresponding to the purchase request. And the affiliate packages the encrypted purchase request into a purchase requisition transaction request according to a block chain data format, signs the purchase requisition transaction request through a private key prestored by the affiliate, and sends the signed purchase requisition transaction request to the block chain network according to a block chain protocol format.

When the first transaction request is a redemption request, that is, when the redemption request is obtained by the brokering agency, the brokering agency checks the validity of the redemption request according to its pre-stored user management rules, that is, checks whether the user issuing the redemption request has the right to redeem the asset, etc. If the redemption request is valid, the canceling agency acquires the private information in the redemption request, and encrypts the private information in the redemption request through an ECC (error correction code) encryption algorithm, wherein the private information of the redemption request includes but is not limited to the name, the mobile phone number, the identification number, the account, the home address or the company address of the user corresponding to the redemption request. The redeeming mechanism packages the encrypted redemption request into a redemption transaction request according to a block chain data format, signs the redemption transaction request through a private key prestored by the redeeming mechanism, and sends the signed redemption transaction request to the block chain network according to a block chain protocol format.

By encrypting the private information in the first transaction request, the anonymity of the first transaction request is realized. When the affiliate and the issuing organization perform the asset transaction process, the privacy of user data is protected, and the security in the asset transaction process is improved.

Step S20, when an issuer receives a first transaction request sent by an affiliate through the blockchain network, the issuer constructs corresponding first transaction response data according to a blockchain data format based on the first transaction request, sends the first transaction response data to the blockchain network, so that a blockchain link point on the blockchain network, which is responsible for accounting, confirms the validity of the first transaction response data through a consensus mechanism, writes the valid first transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network;

when the affiliate sends the signed first transaction request to the blockchain network, the issuing organization receives the signed first transaction request sent by the affiliate through the blockchain network, and checks the validity of the signed first transaction request according to preset business rules. And data such as the valid period of the assets, the upper limit of the total amount of the assets and the like are set in the preset business rule.

And if the issuing organization confirms that the signed first transaction request is valid, the issuing organization constructs corresponding first transaction response data according to the block chain data format based on the first transaction request. If the signed first transaction request is a purchase-applying transaction request, the issuing organization constructs a purchase-applying transaction response data according to the block chain data format based on the purchase-applying transaction request; if the signed first transaction request is a redemption transaction request, the issuing institution constructs a redemption transaction response data in the block chain data format based on the redemption transaction request. When the issuing organization obtains first transaction response data, the first transaction response data are encrypted through a pre-stored private key, and the encrypted first transaction response data are sent to the block chain network according to a block chain protocol format.

When the blockchain network receives the first transaction response data, the blockchain link points in the blockchain network which are responsible for accounting acquire the first transaction response data, and the validity of the first transaction response data is checked through a consensus mechanism. If the first transaction response data is valid, the block chain node responsible for accounting packs the first transaction response data into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through an abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcast manner, so that each node in the block chain network can acquire the block chain data block.

And if the signatures of the affiliate and the issuer in the first transaction response data are invalid, discarding the first transaction response data by the block chain node responsible for accounting.

The consensus mechanism is that transaction nodes on the P2P network use a common algorithm to confirm a batch of transaction response data. Algorithms used by the consensus mechanism include, but are not limited to, workload proofs, equity proofs, multiple signature verifications, election verifications, and the like. The digest algorithms include, but are not limited to, SHA2, SHA3, and RIMPID160 algorithms in the SHA (Secure HashAlgorithm) family, and fast verification data through the data structure of Merkle trees and tree retrieval algorithms.

Step S30, the affiliate obtains the blockchain data block through the blockchain network to complete the asset transaction with the issuer.

And the affiliation mechanism acquires the block chain data block through the block chain network. If the affiliation mechanism is an affiliation mechanism for processing the purchase request, the affiliation mechanism adds the assets in the block chain data block to the account of the user corresponding to the purchase request; if the canceling agency is the one that handles the redemption request, the canceling agency transfers ownership of the asset in the blockchain data block back to the issuing agency that issued the asset and deletes the asset from the account of the user to which the redemption request corresponds. When the affiliate deletes the asset from the account of the user to which the redemption request corresponds, the affiliate and the issuer settle.

Further, when each node in the blockchain network acquires the blockchain data block, each node in the blockchain network writes the blockchain data block into its own blockchain database.

In this embodiment, an affiliate signs an acquired first transaction request, sends the signed first transaction request to a blockchain network constructed based on a P2P peer-to-peer network, an issuer constructs first transaction response data based on the first transaction request acquired from the blockchain network, sends the first transaction response data to the blockchain network, so that a blockchain link point on the blockchain network, which is responsible for accounting, confirms the validity of the first transaction response data through a consensus mechanism, writes the valid first transaction response data into a blockchain data block, sends the blockchain data block to the blockchain network, and the affiliate acquires the blockchain data block through the blockchain network to complete asset transaction between the affiliate and the issuer. The block chain network is constructed by using the P2P peer-to-peer network, so that the issuing mechanism and the affiliate mechanism in the block chain network can directly communicate among all nodes in the block chain network without communicating through agents, and the transaction flow of the issuing mechanism and the affiliate mechanism in the asset transaction process is reduced; the common recognition mechanism is used for confirming the data of the issuing organization and the affiliation organization in the asset transaction process, and other organizations do not need to be entrusted to confirm the data in the asset transaction process, so that the risk of data tampering is reduced, the asset transaction confirmation cost is reduced, and the operation and maintenance cost of the block chain network is reduced.

Referring to fig. 2, fig. 2 is a schematic flow chart of a second embodiment of the asset transaction method of the present invention, which is proposed based on the first embodiment.

In this embodiment, the asset transaction method further includes:

step S40, the issuing organization and the affiliate are connected to a block chain network constructed based on a P2P peer-to-peer network;

the issuing organization and the affiliate are connected into a blockchain network constructed based on a P2P peer-to-peer network, namely, the nodes of the issuing organization and the affiliate are connected into the same blockchain network through installing and configuring the blockchain system. Nodes in the affiliates establish communication with nodes in other affiliates and issuers through the blockchain network. The users in the affiliate have unique address identifiers that are strings of 20 bytes, 32 bytes, or 64 bytes, or 128 bytes.

It should be noted that, the behavior of purchasing assets by an individual user requires the intervention and management of the affiliate, and when the individual user needs to perform asset transaction, the individual user is defined to purchase the assets on the blockchain network through the affiliate. Asset transaction activities include, but are not limited to, purchases, redemption, and transfers, among others.

Step S50, the issuing organization creates assets according to the preset flow and packages the assets into an issuing transaction data packet according to the block chain data format;

step S60, the issuing organization issues the issued transaction data packet to the blockchain network, so that the blockchain link point responsible for accounting on the blockchain network writes the transaction data packet into a blockchain data block, and sends the blockchain data block to the blockchain network;

when the issuing mechanism and the affiliate are connected to the block chain network, the issuing mechanism creates a certain amount of assets according to a preset flow, and the issuing mechanism packages the assets into an issuing transaction data packet according to a block chain data format and issues the issuing transaction data packet to the block chain network. The preset process is a process for creating assets specified by laws and regulations. And the issuing organization signs the transaction data packet through a private key prestored by the issuing organization and issues the signed transaction data packet to the block chain network in a broadcasting way.

When the block chain network receives the transaction data packet, the block chain node responsible for accounting in the block chain network acquires the transaction data packet, and the validity of the transaction data packet is checked through the consensus mechanism. If the transaction data packet is valid, the block chain node responsible for accounting packs the transaction data packet into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through an abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcasting manner, so that each node in the block chain network can acquire the block chain data block, namely acquire the assets in the block chain data block.

And if the transaction data packet is invalid, discarding the transaction data packet by the block chain node responsible for accounting.

Step S70, the affiliate obtains the transaction data packet in the blockchain data block through the blockchain network, and confirms that the issuer has the assets that can be traded.

And the affiliate acquires the transaction data packet in the blockchain data block through the blockchain network, namely acquires the assets in the blockchain data block and confirms that the issuer has the assets which can be traded.

In the embodiment, the issuing organization and the affiliate organization are added into the blockchain network constructed based on the P2P network, so that all nodes between the issuing organization and the affiliate organization and between the affiliate organization and the affiliate organization can be directly communicated with each other, and an agency organization is not required, thereby reducing the asset transaction flow between the issuing organization and the affiliate organization and between the affiliate organization and the affiliate organization.

Referring to fig. 3, fig. 3 is a schematic flow chart of a third embodiment of the asset transaction method of the present invention, which is proposed based on the first embodiment.

In this embodiment, the asset transaction method further includes:

step S80, when the issuing organization and the affiliate organization receive the clearing instruction, the issuing organization and the affiliate organization clear the asset transaction data in the preset time to obtain the asset transaction condition.

When the issuing mechanism and the affiliate mechanism which carry out the asset transaction receive a clearing instruction for clearing assets, the issuing mechanism clears asset transaction data in a distributed block chain database maintained by the issuing mechanism so as to obtain the asset transaction condition within the preset time; and the affiliate mechanism clears the asset transaction data in the distributed block chain database maintained by the affiliate mechanism to obtain the asset transaction condition within the preset time. The preset time can be set according to needs, such as a day, a week or a month. The asset transaction condition includes data of asset transaction in the preset time, namely how many asset transactions are performed in the preset time, and also includes the amount of money of each asset transaction.

It should be noted that, when two affiliates perform asset transaction, the process of clearing asset transaction data between the two affiliates is similar to the process of clearing asset transaction data between the affiliate and the issuer, and is not described herein again.

Further, the asset transaction method further comprises: when the issuing mechanism receives an inquiry instruction for inquiring the asset transaction data, the issuing mechanism inquires the asset transaction data in a block chain database according to the identification information corresponding to the asset transaction data, wherein each asset transaction is provided with corresponding identification information; and when the affiliate mechanism receives a query instruction for querying the asset transaction data, the affiliate mechanism queries the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data.

The block chain network sets an identification information ID in each asset transaction between the affiliate mechanism and the affiliate mechanism, and establishes a Key-Value mapping table between the identification information ID and the data of the asset transaction corresponding to the identification information, wherein Key is the identification information ID, and Value is the data of the asset transaction. And each node in the block chain network stores a mapping table of Key-Value of the asset transaction.

When the issuing organization receives an inquiry instruction for inquiring asset transaction data of a certain time, the issuing organization inquires the data Value of the corresponding asset transaction in the distributed block chain database maintained by the issuing organization according to the identification information ID corresponding to the asset transaction data. If the data Value of the asset transaction does not exist in the distributed blockchain database maintained by the issuer, that is, the data Value of the asset transaction is not synchronized in the issuer, the issuer sends the query instruction to the blockchain network in a broadcast manner. When the block chain network receives the query instruction, the block chain link points in the block chain network, which possess the data Value of the asset transaction, send the data Value of the asset transaction to the issuing organization.

When the affiliate receives a query instruction for querying asset transaction data of a certain time, the query process of the affiliate is consistent with that of the issuing organization, and details are not repeated here.

It should be noted that the precedence relationship between the step S80 and the step S10, the step S20, and the step S30 is not limited to this embodiment, and the step S80 is executed when the issuer and the affiliate receive the clearing instruction.

In this embodiment, because the issuing organization and the affiliate are both connected to the blockchain network, and all nodes in the blockchain network can receive the asset transaction data between the issuing organization and the affiliate, when the asset transaction data between the issuing organization and the affiliate is cleared, the issuing organization and the affiliate do not need to exchange the batch asset transaction data, or the asset transaction data is cleared by using a daily account checking method and the like, so that the efficiency of clearing the asset transaction data of the issuing organization and the affiliate is improved.

Referring to fig. 4, fig. 4 is a schematic flow chart of a fourth embodiment of the asset transaction method of the present invention.

In this embodiment, the asset transaction method further includes:

step S90, when the affiliate of the transferred asset receives a second transaction request, the affiliate of the transferred asset signs the second transaction request through a pre-stored private key, and sends the signed second transaction request to the blockchain network;

when a user managed by a certain affiliate wants to transfer an asset under an account of the user to another user, the user submits a second transaction request to the affiliate where the user is located through the exchange, the affiliate is an affiliate that transfers the asset, the second transaction request is a transfer request, and the affiliate where the user receiving the asset is located is an affiliate that receives the asset. It should be noted that the affiliate mechanism of the roll-out asset and the affiliate mechanism of the receiving asset may be the same affiliate mechanism, that is, the user of the roll-out asset and the user of the receiving asset may exist in the same affiliate mechanism; the affiliate mechanism of the roll-out asset and the affiliate mechanism of the receiving asset may be different affiliates in the blockchain network, i.e., a user of the roll-out asset and a user of the receiving asset may exist in different affiliates.

When the affiliate mechanism of the transferred asset acquires the transfer request, the affiliate mechanism of the transferred asset checks the validity of the transfer request according to the pre-stored user management rules, namely, checks whether the user corresponding to the transfer request has the authority to transfer the asset, whether the validity period of the asset is due, and the like. If the transfer request is valid, the affiliate mechanism of the transferred asset acquires the private information in the transfer request, and encrypts the private information in the transfer request through the ECC encryption algorithm, wherein the private information in the transfer request includes but is not limited to the name, the mobile phone number, the identification number, the account, the home address or the company address of the user corresponding to the transfer request. And the affiliate mechanism of the transferred asset encapsulates the encrypted transfer request into a transfer transaction request according to a block chain data format, signs the transfer transaction request through a private key prestored in the affiliate mechanism, and sends the signed transfer transaction request to the block chain network according to a block chain protocol format.

Step S110, when an affiliate mechanism receiving the asset receives the second transaction request through the blockchain network, the affiliate mechanism receiving the asset constructs corresponding second transaction response data according to a blockchain data format based on the second transaction request, sends the second transaction response data to the blockchain network so that a blockchain link point in charge of accounting on the blockchain network confirms the validity of the second transaction response data through a consensus mechanism, writes the valid second transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network;

when the affiliate mechanism of the transferred asset sends the signed second transaction request to the blockchain network, namely when the affiliate mechanism of the transferred asset sends the signed transfer transaction request to the blockchain network, the affiliate mechanism of the received asset receives the signed transfer transaction request sent by the affiliate mechanism of the transferred asset through the blockchain network, and checks the validity of the signed transfer transaction request according to preset business rules.

And if the second transaction request after the proxy mechanism of the received asset confirms that the signature is valid, namely the transfer transaction request after the proxy mechanism of the received asset confirms that the signature is valid, the proxy mechanism of the received asset constructs corresponding transfer transaction response data according to the block chain data format based on the transfer transaction request. When the affiliate mechanism receiving the assets obtains transfer transaction response data, the transfer transaction response data are encrypted through a private key prestored in the affiliate mechanism, and the encrypted transfer transaction response data are sent to the blockchain network according to a blockchain data format.

When the block chain network receives the transfer transaction response data, the block chain node in charge of accounting in the block chain network acquires the transfer transaction response data, and the validity of the transfer transaction response data is checked through the consensus mechanism. If the transfer transaction response data is valid, the block chain node responsible for accounting packs the transfer transaction response data into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through the abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcasting manner, so that each node in the block chain network can acquire the block chain data block.

And if the signatures of the affiliate mechanism transferring out the asset and the affiliate mechanism receiving the asset in the transfer transaction response data are invalid, discarding the transfer transaction response data by the block chain node responsible for accounting.

Step S120, the affiliate of the roll-out asset obtains the blockchain data block through the blockchain network, so as to transfer the asset corresponding to the second transaction request to the affiliate of the receiving asset.

When the affiliate mechanism of the transferred-out asset acquires the block chain data block through the block chain network, the affiliate mechanism of the transferred-out asset deletes the asset in the block chain data block from the account of the user corresponding to the transfer request; and the asset receiving affiliation mechanism acquires the block chain data block through the block chain network, and the asset receiving affiliation mechanism accounts the assets in the block chain data block into the account of the user corresponding to the purchase applying request.

Further, when each node in the blockchain network acquires the blockchain data block, each node in the blockchain network writes the blockchain data block into its own blockchain database.

In the embodiment, communication between the affiliate mechanism and the affiliate mechanism is realized in the blockchain network, and the asset can be directly transferred between the affiliate mechanism and the affiliate mechanism.

The invention further provides an asset transaction system.

Referring to fig. 5, fig. 5 is a functional block diagram of a first embodiment of an asset transaction system of the present invention.

In this embodiment, the asset transaction system includes an issuer 20 and an affiliate 10:

the affiliate 10 includes a first signature module 11, configured to, when a first transaction request is obtained, sign the first transaction request through a pre-stored private key, and send the signed first transaction request to a blockchain network, where the blockchain network is constructed based on a P2P peer-to-peer network;

in a blockchain network, an affiliate 10 obtains a first transaction request, which may be a purchase request submitted by a user of the affiliate 10 to purchase an asset at an issuer 20, the amount of the purchased asset in the purchase request being determinable by the user; the first transaction request may also be a redemption request issued by a user to the affiliate 10 to redeem an asset after the expiration of the lifetime of the asset in a user of the affiliate 10. When the affiliate 10 obtains the first transaction request, the affiliate 10 signs the first transaction request through a pre-stored private key, and sends the signed first transaction request to the blockchain network according to the blockchain protocol format. Both the issuing authority 20 and the issuing authority 10 have their respective unique public and private keys.

It should be noted that an organization is a member that is added to the block chain network and can operate independently, and the organization has certain assets and its own user group. In the context of asset transactions, there are two roles of organization: an issuer 20 and an affiliate 10. The issuer 20 has the authority to issue assets, and a share of the assets can be created and issued in the blockchain network. The affiliate 10 may sell the assets to its own managed user after having reached a business agreement with the issuer 20, or may transfer the assets to another affiliate 10 by acting on its own user. The user here refers to an individual user who has a contract with the affiliate 10, the affiliate 10 manages the user's data and assets, and when the user needs to trade the assets, the user needs to go to the affiliate 10 to handle the relevant procedures.

The blockchain network is essentially a decentralized distributed ledger database, which is the underlying technology of bitcoin. The blockchain itself is actually a string of data blocks generated by using cryptographic correlation, and each data block contains information for validating multiple blockchain network transactions. The blockchain network is constructed based on a P2P (Peer-to-Peer) network. In a P2P network, nodes can communicate directly with each other to form a peer-to-peer mesh structure, and data generated by one node can simultaneously transmit broadcast to other nodes in the network, and can also query and acquire data from any other node in the network. The node refers to a node participating in the blockchain network for asset transaction and data exchange, and each independent affiliate 10 and issuer 20 may have one or more nodes, each node being a combination of a set of physical networks, computers, application software of blockchain networks, and databases.

The assets include but are not limited to regular financial products in the financial field, such as bonds, real objects, certificates, information entities and other products. The value of the assets can be defined by the legal currency, and can also be defined by the partners under specific business scenes, and the assets can have the attributes of total number upper limit, validity period and the like. The assets are issued by a particular issuing authority 20, and the affiliate 10 can subscribe to assets, transfer assets, and maintain circulation of assets on the blockchain network; when the expiration date of the asset has expired, the affiliate 10 may redeem the asset to the issuer 20 for redemption as a french coin or other form of other asset.

Further, the first signature module 11 includes:

the checking unit is used for checking the validity of the first transaction request when the first transaction request is acquired;

the encryption unit is used for encrypting the private information in the first transaction request if the first transaction request is valid, and packaging the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;

and the signature unit is used for signing the packaged first transaction request through a prestored private key and sending the signed first transaction request to the block chain network.

When the first transaction request is a purchase request, that is, when the affiliate 10 obtains the purchase request, the affiliate 10 checks the validity of the purchase request according to a pre-stored user management rule, that is, checks whether the user corresponding to the purchase request has sufficient purchasing power, where the user management rule is a rule defined by the affiliate 10 for managing users who have a subscription relationship with the user. If the user corresponding to the purchase request has enough purchasing power, the purchase request is indicated to be effective. When the purchase request is valid, the affiliate mechanism 10 obtains the private information in the purchase request, and encrypts the private information in the purchase request through an ECC (Elliptic curve Cryptography) encryption algorithm, where the private information in the purchase request includes, but is not limited to, a name, a mobile phone number, an identity card number, an account, a home address, or a company address of a user corresponding to the purchase request. The affiliate 10 packages the encrypted purchase request into a purchase requisition transaction request according to a blockchain data format, signs the purchase requisition transaction request through a private key prestored therein, and sends the signed purchase requisition transaction request to the blockchain network according to a blockchain protocol format.

When the first transaction request is a redemption request, i.e. when the redemption request is obtained by the escrow mechanism 10, the escrow mechanism 10 checks the validity of the redemption request according to its pre-stored user management rules, i.e. checks whether the user issuing the redemption request has the right to redeem the asset, etc. If the redemption request is valid, the canceling mechanism 10 obtains the private information in the redemption request, and encrypts the private information in the redemption request through an ECC encryption algorithm, where the private information in the redemption request includes, but is not limited to, the name, the phone number, the identification number, the account, the home address or the company address of the user corresponding to the redemption request. The redeeming mechanism 10 packages the encrypted redemption request into a redemption transaction request according to a block chain data format, signs the redemption transaction request through a private key prestored in the redeeming mechanism, and sends the signed redemption transaction request to the block chain network according to a block chain protocol format.

By encrypting the private information in the first transaction request, the anonymity of the first transaction request is realized. When the affiliate 10 and the issuer 20 perform an asset transaction, the privacy of the user profile is protected and the security during the asset transaction is improved.

The issuer 20 includes a first sending module 21, configured to, when a first transaction request sent by the affiliate 10 is received through the blockchain network, construct corresponding first transaction response data according to a blockchain data format based on the first transaction request, send the first transaction response data to the blockchain network, so that a blockchain link point on the blockchain network, which is responsible for accounting, confirms validity of the first transaction response data through a consensus mechanism, writes the valid first transaction response data into a blockchain data block, and sends the blockchain data block into the blockchain network;

when the affiliate 10 sends the signed first transaction request to the blockchain network, the issuer 20 receives the signed first transaction request sent by the affiliate 10 through the blockchain network, and checks the validity of the signed first transaction request according to a preset business rule. And data such as the valid period of the assets, the upper limit of the total amount of the assets and the like are set in the preset business rule.

If the issuer 20 confirms that the signed first transaction request is valid, the issuer 20 constructs corresponding first transaction response data according to the block chain data format based on the first transaction request. If the signed first transaction request is a purchase-applying transaction request, the issuer 20 constructs a purchase-applying transaction response data according to the block chain data format based on the purchase-applying transaction request; if the signed first transaction request is a redemption transaction request, the issuer 20 constructs a redemption transaction response data in the block chain data format based on the redemption transaction request. When the issuer 20 obtains the first transaction response data, the first transaction response data is encrypted by a private key pre-stored in the issuer, and the encrypted first transaction response data is sent to the blockchain network according to the blockchain protocol format.

When the blockchain network receives the first transaction response data, the blockchain link points in the blockchain network which are responsible for accounting acquire the first transaction response data, and the validity of the first transaction response data is checked through a consensus mechanism. If the first transaction response data is valid, the block chain node responsible for accounting packs the first transaction response data into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through an abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcasting manner, so that each node in the block chain network can acquire the block chain data block.

And if the first transaction response data is invalid, discarding the first transaction response data by the block chain node responsible for accounting.

The consensus mechanism is that transaction nodes on the P2P network use a common algorithm to confirm a batch of transaction response data. Algorithms used by the consensus mechanism include, but are not limited to, workload proofs, equity proofs, multiple signature verifications, election verifications, and the like. The digest algorithms include, but are not limited to, SHA2, SHA3, and RIMPID160 algorithms in the SHA (Secure HashAlgorithm) family, and fast verification data through the data structure of Merkle trees and tree retrieval algorithms.

The affiliate 10 also includes a first acquisition module 12 for acquiring the blockchain data blocks over the blockchain network to complete an asset transaction with the issuer 20.

The escrow mechanism 10 obtains the blockchain data blocks through the blockchain network. If the affiliate mechanism 10 is an affiliate mechanism 10 that handles the purchase request, the affiliate mechanism 10 will credit the assets in the blockchain data block to the account of the user corresponding to the purchase request; if the escrow mechanism 10 is the one that handles the redemption request, the escrow mechanism 10 transfers ownership of the asset in the blockchain data block back to the issuing authority 20 that issued the asset and deletes the asset from the account of the user to which the redemption request corresponds. When the escrow mechanism 10 deletes the asset from the account of the user to which the redemption request corresponds, the escrow mechanism 10 and the issuer 20 settle.

Further, when each node in the blockchain network acquires the blockchain data block, each node in the blockchain network writes the blockchain data block into its own blockchain database.

In this embodiment, the acquired first transaction request is signed by the affiliate 10, the signed first transaction request is sent to a blockchain network constructed based on a P2P peer-to-peer network, the issuer 20 constructs first transaction response data based on the first transaction request acquired from the blockchain network, sends the first transaction response data to the blockchain network, so that a blockchain link point on the blockchain network, which is responsible for accounting, confirms the validity of the first transaction response data through a consensus mechanism, writes the valid first transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network, and the affiliate 10 acquires the blockchain data block through the blockchain network, so as to complete asset transaction with the issuer 20. The block chain network is constructed by using the P2P peer-to-peer network, so that the issuing mechanism 20 and the affiliate mechanism 10 in the block chain network can directly communicate among all nodes in the block chain network without proxy communication, and the transaction flow of the issuing mechanism 20 and the affiliate mechanism 10 in the asset transaction process is reduced; the consensus mechanism is used for confirming the data of the issuing mechanism 20 and the affiliate mechanism 10 in the asset transaction process, and other mechanisms do not need to be entrusted to confirm the data in the asset transaction process, so that the risk of data tampering is reduced, the cost of confirming the asset transaction is reduced, and the operation and maintenance cost of the block chain network is reduced.

Referring to fig. 6, fig. 6 is a functional block diagram of a second embodiment of the asset transaction system of the present invention, which is proposed based on the first embodiment.

In this embodiment, the affiliate mechanism 10 further includes a second access module 13, configured to access a blockchain network constructed based on a P2P peer-to-peer network;

the issuer 20 further includes a first access module 22, configured to access a blockchain network constructed based on a P2P peer-to-peer network;

the issuer 20 and the affiliate 10 access a blockchain network constructed based on a P2P peer-to-peer network, that is, nodes of the issuer 20 and the affiliate 10 access the same blockchain network by installing and configuring the blockchain system. The nodes in the affiliate 10 establish communication with nodes in other affiliates 10 and issuers 20 through the blockchain network. The users in the affiliate have unique address identifiers that are strings of 20 bytes, 32 bytes, or 64 bytes, or 128 bytes.

It should be noted that the actions of purchasing assets by individual users require the intervention and management of the affiliate 10, and when an individual user needs to perform an asset transaction, it is defined that the individual user purchases the assets on the blockchain network through the affiliate 10. Asset transaction activities include, but are not limited to, purchases, redemption, and transfers, among others.

The packaging module 23 is configured to create assets according to a preset flow, and package the assets into an issue transaction data packet according to a block chain data format;

the issuing module 24 is configured to issue the issued transaction data packet to the blockchain network, so that a blockchain link point in the blockchain network, which is responsible for accounting, writes the transaction data packet into a blockchain data block, and sends the blockchain data block to the blockchain network;

when the issuing authority 20 and the affiliate 10 are connected to the blockchain network, the issuing authority 20 creates a certain amount of assets according to a preset flow, and the issuing authority 20 packages the assets into an issuing transaction data package according to a blockchain data format and issues the issuing transaction data package to the blockchain network. The preset process is a process for creating assets specified by laws and regulations. The issuer 20 signs the transaction data packet through a private key pre-stored by the issuer, and issues the signed transaction data packet to the blockchain network in a broadcast manner.

When the block chain network receives the transaction data packet, the block chain node responsible for accounting in the block chain network acquires the transaction data packet, and the validity of the transaction data packet is checked through the consensus mechanism. If the transaction data packet is valid, the block chain node responsible for accounting packs the transaction data packet into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through an abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcasting manner, so that each node in the block chain network can acquire the block chain data block, namely acquire the assets in the block chain data block.

And if the transaction data packet is invalid, discarding the transaction data packet by the block chain node responsible for accounting.

The first obtaining module 12 is further configured to obtain the transaction data packet in the blockchain data block through the blockchain network, and confirm that the issuer 20 has the assets that can be traded.

The affiliate 10 obtains the transaction data packet in the blockchain data block, i.e., the asset in the blockchain data block, through the blockchain network, confirming that the issuer 20 has an asset that can be traded.

The embodiment adds the issuer 20 and the affiliate 10 into the blockchain network constructed based on the P2P network, so that all nodes between the issuer 20 and the affiliate 10 and between the affiliate 10 and the affiliate 10 can directly communicate with each other, and an agency is not required, thereby reducing the asset transaction flow between the issuer 20 and the affiliate 10 and between the affiliate 10 and the affiliate 10.

Referring to fig. 7, fig. 7 is a functional block diagram of a third embodiment of the asset transaction system of the present invention, which is proposed based on the first embodiment.

In this embodiment, the issuing authority 20 further includes a first clearing module 25, configured to clear asset transaction data within a preset time when receiving a clearing instruction, so as to obtain an asset transaction condition;

the affiliate 10 also includes a second liquidation module 14 for liquidating the asset transaction data within a predetermined time upon receipt of the liquidation instruction to obtain the asset transaction status.

When the issuing agency 20 and the affiliate 10 performing asset transaction receive a clearing instruction for clearing assets, the issuing agency 20 clears asset transaction data in a distributed blockchain database maintained by the issuing agency 20 to obtain asset transaction conditions within the preset time; the affiliate 10 clears the asset transaction data in the distributed blockchain database maintained by the affiliate to obtain the asset transaction condition within the preset time. The preset time can be set according to needs, such as a day, a week or a month. The asset transaction condition includes data of asset transaction in the preset time, namely how many asset transactions are performed in the preset time, and also includes the amount of money of each asset transaction.

It should be noted that, when two affiliates 10 are performing asset transaction, the process of clearing asset transaction data between the two affiliates 10 is similar to the process of clearing asset transaction data between the affiliate 10 and the issuer 20, and is not described herein again.

Further, the issuing authority 20 further includes a first query module, configured to query, when receiving a query instruction for querying asset transaction data, asset transaction data in a blockchain database according to identification information corresponding to the asset transaction data, where each asset transaction is provided with corresponding identification information;

the affiliate 10 further includes a second query module, configured to query the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data when receiving a query instruction for querying the asset transaction data.

The blockchain network sets an identification information ID for each asset transaction between the affiliate 10 and the affiliate 10, and establishes a Key-Value mapping table between the identification information ID and the asset transaction data corresponding to the identification information, where the Key is the identification information ID and the Value is the asset transaction data. And each node in the block chain network stores a mapping table of Key-Value of the asset transaction.

When the issuer 20 receives an inquiry command for inquiring asset transaction data of a certain time, the issuer 20 inquires the data Value of the corresponding asset transaction in the distributed block chain database maintained by the issuer 20 according to the identification information ID corresponding to the asset transaction data. If the data Value of the asset transaction does not exist in the distributed blockchain database maintained by the issuer 20, that is, the data Value of the asset transaction is not synchronized in the issuer 20, the issuer 20 sends the query instruction to the blockchain network in a broadcast manner. When the query instruction is received by the blockchain network, the blockchain link point in the blockchain network that owns the data Value of the asset transaction sends the data Value of the asset transaction to the issuer 20.

When the affiliate 10 receives a query command for querying asset transaction data of a certain time, the query process of the affiliate 10 is consistent with that of the issuer 20, and will not be described herein again.

In this embodiment, because the issuing entity 20 and the affiliate 10 are both connected to the blockchain network, and all nodes in the blockchain network can receive the asset transaction data between the issuing entity 20 and the affiliate 10, when clearing the asset transaction data between the issuing entity 20 and the affiliate 10, there is no need to exchange batch asset transaction data between the issuing entity 20 and the affiliate 10, or to clear the asset transaction data in a manner of daily account checking, etc., so that the efficiency of clearing the asset transaction data between the issuing entity 20 and the affiliate 10 is improved.

Referring to fig. 8, fig. 8 is a functional block diagram of a fourth embodiment of the asset transaction system of the present invention.

In the present embodiment, the affiliate mechanism 10 includes an affiliate mechanism 01 that rolls out an asset and an affiliate mechanism 02 that receives the asset;

the roll-out asset affiliation mechanism 01 includes:

the second signature module 011 is used for signing the second transaction request through a prestored private key when the second transaction request is received, and sending the signed second transaction request to the block chain network;

when a user managed by a certain affiliate wants to transfer an asset under an account to another user, the user submits a second transaction request to the affiliate where the user is located through the exchange, the affiliate is an affiliate 01 that rolls the asset out, the second transaction request is a transfer request, and the affiliate where the user that receives the asset is an affiliate 02 that receives the asset. It should be noted that the affiliate 01 of the roll-out asset and the affiliate 02 of the receiving asset may be the same affiliate, that is, the user of the roll-out asset and the user of the receiving asset may exist in the same affiliate; the affiliate 01 of the roll-out asset and the affiliate 02 of the receiving asset may be different affiliates in the blockchain network, i.e., a user of the roll-out asset and a user of the receiving asset may exist in different affiliates.

When the affiliate mechanism 01 of the transferred asset acquires the transfer request, the affiliate mechanism 01 of the transferred asset checks the validity of the transfer request according to the pre-stored user management rules, that is, checks whether the user corresponding to the transfer request has the authority to transfer the asset, whether the validity period of the asset is due, and the like. If the transfer request is valid, the affiliate 01 of the transferred asset acquires the private information in the transfer request, and encrypts the private information in the transfer request through the ECC encryption algorithm, wherein the private information in the transfer request includes but is not limited to the name, the mobile phone number, the identification number, the account, the home address or the company address of the user corresponding to the transfer request. And the affiliate 01 transferring the assets encapsulates the encrypted transfer request into a transfer transaction request according to a block chain data format, signs the transfer transaction request through a private key prestored in the affiliate, and sends the signed transfer transaction request to the block chain network according to a block chain protocol format.

The asset receiving affiliation mechanism 02 includes a second sending module 021, configured to construct, when the second transaction request is received through the blockchain network, corresponding second transaction response data according to a blockchain data format based on the second transaction request, send the second transaction response data to the blockchain network, so that a blockchain link point on the blockchain network, which is responsible for accounting, confirms validity of the second transaction response data through a consensus mechanism, writes the valid second transaction response data into a blockchain data block, and sends the blockchain data block to the blockchain network;

when the affiliate 01 of the transferred-out asset sends the signed second transaction request to the blockchain network, that is, when the affiliate 01 of the transferred-out asset sends the signed transfer transaction request to the blockchain network, the affiliate 02 of the received asset receives the signed transfer transaction request sent by the affiliate 01 of the transferred-out asset through the blockchain network, and checks the validity of the signed transfer transaction request according to preset business rules.

If the second transaction request after the asset receiving affiliate 02 confirms that the signature is valid, that is, the transfer transaction request after the asset receiving affiliate 02 confirms that the signature is valid, the asset receiving affiliate 02 constructs corresponding transfer transaction response data according to the blockchain data format based on the transfer transaction request. When the affiliate 02 receiving the assets obtains transfer transaction response data, the transfer transaction response data are encrypted through a private key prestored in the affiliate 02, and the encrypted transfer transaction response data are sent to the blockchain network according to a blockchain data format.

When the block chain network receives the transfer transaction response data, the block chain node in charge of accounting in the block chain network acquires the transfer transaction response data, and the validity of the transfer transaction response data is checked through the consensus mechanism. If the transfer transaction response data is valid, the block chain node responsible for accounting packs the transfer transaction response data into a new block chain data block in the block chain network, calculates the abstract of the block chain data block through the abstract algorithm, writes the abstract of the block into the block chain data block, and sends the block chain data block into the block chain network in a broadcasting manner, so that each node in the block chain network can acquire the block chain data block.

If the signatures of the affiliate 01 of the transferred-out asset and the affiliate 02 of the received asset in the transfer transaction response data are invalid, the blockchain node responsible for accounting discards the transfer transaction response data.

The affiliate 01 of the roll-out asset further includes a second obtaining module 012, configured to obtain the blockchain data block through the blockchain network, so as to transfer the asset corresponding to the second transaction request to the affiliate 02 of the receiving asset.

When the affiliate mechanism 01 of the transferred-out asset acquires the blockchain data block through the blockchain network, the affiliate mechanism 01 of the transferred-out asset deletes the asset in the blockchain data block from the account of the user corresponding to the transfer request; the asset receiving affiliation mechanism 02 obtains the blockchain data block through the blockchain network, and the asset receiving affiliation mechanism 02 credits the assets in the blockchain data block into accounts of users corresponding to the purchase applying requests.

Further, when each node in the blockchain network acquires the blockchain data block, each node in the blockchain network writes the blockchain data block into its own blockchain database.

In the embodiment, communication between the affiliate mechanism and the affiliate mechanism is realized in the blockchain network, and the asset can be directly transferred between the affiliate mechanism and the affiliate mechanism.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. An asset transaction method, comprising:
when an agency acquires a first transaction request, the agency signs the first transaction request through a pre-stored private key, and sends the signed first transaction request to a block chain network, wherein the block chain network is constructed based on a P2P peer-to-peer network, nodes refer to nodes participating in the block chain network and performing asset transaction and data exchange, each agency and issuing organization can have one or more nodes, and each node is a combination of application software of a group of physical networks, computers, block chain networks and a database;
when an issuer receives a first transaction request sent by an affiliate through a blockchain network, the issuer confirms that the first transaction request is valid, constructs corresponding first transaction response data according to a blockchain data format based on the first transaction request, sends the first transaction response data to the blockchain network so that a blockchain link point responsible for accounting on the blockchain network confirms the validity of the first transaction response data through a consensus mechanism, packages the valid first transaction response data into a new blockchain data block in the blockchain network, calculates an abstract of the blockchain data block through an abstract algorithm, writes the abstract into the blockchain data block, and sends the blockchain data block to the blockchain network in a broadcast manner;
the affiliate acquires the blockchain data block through the blockchain network to complete the asset transaction with the issuer;
when the issuing mechanism receives an inquiry instruction for inquiring the asset transaction data, the issuing mechanism inquires the asset transaction data in a block chain database according to the identification information corresponding to the asset transaction data, wherein each asset transaction is provided with corresponding identification information;
if the asset transaction data is not inquired in the blockchain database according to the identification information corresponding to the asset transaction data in the issuing organization, the issuing organization sends an inquiry instruction to the blockchain network in a broadcasting mode;
when the blockchain network receives the query instruction, the blockchain link points of the asset transaction data owned in the blockchain network send the asset transaction data to the issuing authority.
2. The asset transaction method according to claim 1, wherein before the step of signing the first transaction request by a pre-stored private key when the first transaction request is obtained by the affiliate, and sending the signed first transaction request to the blockchain network, the method further comprises:
the issuing mechanism and the affiliate are accessed into a blockchain network constructed based on a P2P peer-to-peer network;
the issuing organization creates assets according to a preset flow and packages the assets into an issuing transaction data packet according to a block chain data format;
the issuing mechanism issues the issued transaction data packet to the block chain network so that a block chain link point responsible for accounting on the block chain network writes the transaction data packet into a block chain data block, and sends the block chain data block to the block chain network;
and the affiliate acquires the transaction data packet in the blockchain data block through the blockchain network and confirms that the issuer has the assets to be traded.
3. The asset transaction method according to claim 1, wherein said step of, when the affiliate obtains the first transaction request, the affiliate signs the first transaction request with a private key pre-stored in the affiliate, and sends the signed first transaction request to the blockchain network comprises:
when acquiring a first transaction request, an agency checks the validity of the first transaction request;
if the first transaction request is valid, the affiliate encrypts private information in the first transaction request, and packages the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;
and the affiliate signs the packaged first transaction request through a prestored private key and sends the signed first transaction request to the block chain network.
4. The asset transaction method according to any of claims 1 to 3, wherein said step of said affiliate obtaining said blockchain data block over said blockchain network to complete a transaction of said asset with said issuer further comprises:
and when the affiliate mechanism receives a query instruction for querying the asset transaction data, the affiliate mechanism queries the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data.
5. The asset transaction method according to any of claims 1 to 3, wherein said step of said affiliate obtaining said blockchain data block over said blockchain network to complete a transaction of said asset with said issuer further comprises:
when the issuing mechanism and the affiliate mechanism receive clearing instructions, the issuing mechanism and the affiliate mechanism clear asset transaction data within preset time to obtain asset transaction conditions.
6. The asset transaction method according to any one of claims 1 to 3, characterized in that said asset transaction method further comprises:
when the affiliate of the transferred asset receives a second transaction request, the affiliate of the transferred asset signs the second transaction request through a pre-stored private key and sends the signed second transaction request to the block chain network;
when the second transaction request is received by the affiliate receiving the asset over the blockchain network, the receiving asset's affiliate validates the second transaction request and, based on the second transaction request, constructing corresponding second transaction response data according to a block chain data format, sending the second transaction response data to the block chain network, for the block chain nodes responsible for accounting on the block chain network to confirm the validity of the second transaction response data through a consensus mechanism, and packaging the valid second transaction response data into a new blockchain data block in the blockchain network, calculating the abstract of the block chain data block through an abstract algorithm, writing the abstract into the block chain data block, and sending the block chain data block to the block chain network in a broadcasting manner;
the affiliate mechanism of the roll-out asset acquires the blockchain data block through the blockchain network so as to transfer the asset corresponding to the second transaction request to the affiliate mechanism of the receiving asset;
when the issuing mechanism receives an inquiry instruction for inquiring the asset transaction data, the issuing mechanism inquires the asset transaction data in a block chain database according to the identification information corresponding to the asset transaction data, wherein each asset transaction is provided with corresponding identification information;
if the asset transaction data is not inquired in the blockchain database according to the identification information corresponding to the asset transaction data in the issuing organization, the issuing organization sends an inquiry instruction to the blockchain network in a broadcasting mode;
when the blockchain network receives the query instruction, the blockchain link points of the asset transaction data owned in the blockchain network send the asset transaction data to the issuing authority.
7. An asset transaction system, comprising an issuing authority and an affiliate:
the affiliate comprises a first signature module, wherein the first signature module is used for signing the first transaction request through a pre-stored private key when the first transaction request is obtained, and sending the signed first transaction request to a blockchain network, wherein the blockchain network is constructed on the basis of a P2P peer-to-peer network, nodes refer to nodes participating in the blockchain network and performing asset transaction and data exchange, each affiliate and issuer can have one or more nodes, and each node is a combination of a group of physical networks, a computer, application software of the blockchain network and a database;
the issuing institution comprises a first sending module for confirming that a first transaction request sent by the affiliate is valid when the first transaction request is received through the blockchain network, based on the first transaction request, constructing corresponding first transaction response data according to a block chain data format, sending the first transaction response data to the block chain network, for the block chain nodes responsible for accounting on the block chain network to confirm the validity of the first transaction response data through a consensus mechanism, and packaging the valid first transaction response data into a new blockchain data block in the blockchain network, calculating the abstract of the block chain data block through an abstract algorithm, writing the abstract into the block chain data block, and sending the block chain data block to the block chain network in a broadcasting manner;
the affiliate further includes a first acquisition module for acquiring the blockchain data blocks over the blockchain network to complete an asset transaction with the issuer;
the issuing authority further comprises:
the system comprises a first query module, a second query module and a third query module, wherein the first query module is used for querying asset transaction data in a block chain database according to identification information corresponding to the asset transaction data when a query instruction for querying the asset transaction data is received, and the corresponding identification information is set in each asset transaction; if the asset transaction data is not inquired in the blockchain database according to the identification information corresponding to the asset transaction data in the issuing organization, the issuing organization sends an inquiry instruction to the blockchain network in a broadcasting mode; when the blockchain network receives the query instruction, the blockchain link points of the asset transaction data owned in the blockchain network send the asset transaction data to the issuing authority.
8. The asset transaction system of claim 7, wherein said issuing authority further comprises:
the first access module is used for accessing a block chain network constructed based on a P2P peer-to-peer network;
the system comprises a packaging module, a transaction module and a transaction module, wherein the packaging module is used for creating assets according to a preset flow and packaging the assets into an issuing transaction data packet according to a block chain data format;
the issuing module is used for issuing the issued transaction data packet to the block chain network so that a block chain link point responsible for accounting on the block chain network writes the transaction data packet into a block chain data block and sends the block chain data block to the block chain network;
the mechanism of sells still includes:
the second access module is used for accessing into a block chain network constructed based on the P2P peer-to-peer network;
the first obtaining module is further configured to obtain the transaction data packet in the blockchain data block through the blockchain network, and confirm that the issuer has the assets that can be traded.
9. The asset transaction system of claim 7, wherein said first signature module comprises:
the checking unit is used for checking the validity of the first transaction request when the first transaction request is acquired;
the encryption unit is used for encrypting the private information in the first transaction request if the first transaction request is valid, and packaging the encrypted first transaction request according to a block chain data format to obtain a packaged first transaction request;
and the signature unit is used for signing the packaged first transaction request through a prestored private key and sending the signed first transaction request to the block chain network.
10. The asset transaction system according to any of claims 7 to 9, wherein said issuing authority further comprises:
the first clearing module is used for clearing the asset transaction data within the preset time to obtain the asset transaction condition when receiving the clearing instruction;
the mechanism of sells still includes:
the second query module is used for querying the asset transaction data in the blockchain database according to the identification information corresponding to the asset transaction data when a query instruction for querying the asset transaction data is received;
and the second clearing module is used for clearing the asset transaction data in the preset time to obtain the asset transaction condition when receiving the clearing instruction.
11. The asset transaction system according to any of claims 7 to 9, wherein said affiliate comprises an affiliate that rolls out the asset and an affiliate that receives the asset;
the affiliate of the roll-out asset comprises a second signature module, and the second signature module is used for signing the second transaction request through a prestored private key when receiving the second transaction request and sending the signed second transaction request to the block chain network;
the affiliate receiving the asset includes a second sending module for validating the second transaction request upon receipt of the second transaction request over the blockchain network, based on the second transaction request, constructing corresponding second transaction response data according to a block chain data format, sending the second transaction response data to the block chain network, for the block chain nodes responsible for accounting on the block chain network to confirm the validity of the second transaction response data through a consensus mechanism, and packaging the valid second transaction response data into a new blockchain data block in the blockchain network, calculating the abstract of the block chain data block through an abstract algorithm, writing the abstract into the block chain data block, and sending the block chain data block to the block chain network in a broadcasting manner;
the affiliate mechanism for transferring the assets further comprises a second acquisition module, which is used for acquiring the blockchain data block through the blockchain network so as to transfer the assets corresponding to the second transaction request to the affiliate mechanism for receiving the assets;
the issuing authority further comprises:
the system comprises a first query module, a second query module and a third query module, wherein the first query module is used for querying asset transaction data in a block chain database according to identification information corresponding to the asset transaction data when a query instruction for querying the asset transaction data is received, and the corresponding identification information is set in each asset transaction; if the asset transaction data is not inquired in the blockchain database according to the identification information corresponding to the asset transaction data in the issuing organization, the issuing organization sends an inquiry instruction to the blockchain network in a broadcasting mode; when the blockchain network receives the query instruction, the blockchain link points of the asset transaction data owned in the blockchain network send the asset transaction data to the issuing authority.
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