CN110969529A - Communication method, device and system for digital asset transaction - Google Patents

Communication method, device and system for digital asset transaction Download PDF

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Publication number
CN110969529A
CN110969529A CN201911086629.1A CN201911086629A CN110969529A CN 110969529 A CN110969529 A CN 110969529A CN 201911086629 A CN201911086629 A CN 201911086629A CN 110969529 A CN110969529 A CN 110969529A
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China
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transaction
digital asset
information
serial number
initiator
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CN201911086629.1A
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Chinese (zh)
Inventor
王美娟
侯亮
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Beijing Gengjin Technology Co ltd
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Hainan Xinruan Software Co ltd
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Priority to CN201911086629.1A priority Critical patent/CN110969529A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3825—Use of electronic signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/42—Confirmation, e.g. check or permission by the legal debtor of payment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

Abstract

The application discloses a communication method, a device and a system for digital asset transaction. According to the technical scheme, a transaction initiator and a transaction receiver communicate with each other, the transaction initiator sends related information of digital asset transaction to the transaction receiver, when the transaction receiver confirms that the transaction can be carried out, the transaction initiator completes the transaction of the digital asset in a blockchain, the transaction initiator sends transaction information to the transaction receiver, and after the transaction receiver confirms that the transaction is completed, a transaction receipt is sent back to the transaction initiator. Therefore, the technical scheme of the application can confirm whether the digital assets and the transaction meet the supervision requirements or not in the process of communication between two transaction parties, and confirm whether each message or data is fictitious or not through the serial numbers in the communication information of the two transaction parties, so that the safety of the digital asset transaction is ensured from multiple aspects.

Description

Communication method, device and system for digital asset transaction
Technical Field
The present application relates to the field of computer technologies, and in particular, to a communication method, device, and system for digital asset transactions.
Background
The trading of digital assets is usually performed in a digital asset exchange, and with the development of the digital asset and digital asset market, in order to avoid illegal behaviors such as money laundering and the like of the digital assets during trading, a regulatory agency usually needs to perform corresponding supervision operations during trading of the digital assets.
At present, when a supervising authority requires a transfer of a digital asset transaction to occur, a facilitator (such as a digital asset exchange) initiating the transaction needs to check before the transaction is sent and transmit user information to a facilitator of a transaction recipient, the facilitator of the transaction recipient verifies whether the transaction meets a supervision requirement, whether a money laundering rule is met, and the like, and the transaction is allowed to proceed on the premise that the transaction meets the supervision requirement.
However, this method can only verify whether the transaction meets the regulatory requirements, and for the digital asset itself transaction facilitator, the security of the transaction facilitator cannot be verified, for example, the identity information of the asset itself is not attached during the transfer of the digital asset, and it is difficult for the transaction facilitator to determine whether the asset itself is the asset required for the transaction or the asset capable of performing the transaction, so that the current digital asset transaction regulation cannot completely verify the violation of the transaction. Therefore, how to further ensure the security of the digital asset transaction becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
The application provides a communication method, a device and a system for digital asset transaction, which aim to solve the problem that the safety of digital assets cannot be ensured when the digital asset transaction is carried out in the current exchange.
In a first aspect, an embodiment of the present application provides a communication method for a digital asset transaction, including:
sending digital asset transaction information with a serial number to a transaction receiver, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark;
receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that a transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information;
sending a digital asset transaction request to a blockchain according to the transaction approval message, wherein the digital asset transaction request is used for indicating the blockchain to perform the digital asset transaction;
generating transaction information of the blockchain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the blockchain;
sending the transaction information to a transaction receiver, wherein the transaction information is used for indicating the transaction receiver to verify whether the digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number;
and receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is digital asset related information generated after the transaction receiver confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number.
With reference to the first aspect, in an implementation manner of the first aspect, the step of sending the digital asset transaction information with the serial number to the transaction receiver includes:
distributing a serial number for the digital asset transaction, wherein the serial number has uniqueness, and the serial numbers corresponding to each digital asset transaction are different;
encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information;
and sending the encrypted digital asset transaction information to the transaction receiving and sending party.
With reference to the first aspect, in an implementation manner of the first aspect, the step of encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information includes:
coding the digital asset transaction information with the serial number, so that the digital asset transaction information with the serial number is serialized to obtain the coded digital asset transaction information;
and encrypting the coded digital asset transaction information to obtain the encrypted digital asset transaction information.
With reference to the first aspect, in an implementation manner of the first aspect, the encrypting the encoded digital asset transaction information to obtain encrypted digital asset transaction information includes:
performing hash calculation on the encrypted digital asset transaction information to generate a message digest;
encrypting the message digest by using a private key to obtain a digest signature, wherein the private key is provided by a transaction initiator;
and carrying out message encryption on the message digest and the digest signature by using a public key to obtain encrypted digital asset transaction information, wherein the public key is provided by a transaction receiver.
With reference to the first aspect, in one implementation manner of the first aspect, the transaction information includes a hash value generated during the digital asset transaction.
In a second aspect, an embodiment of the present application provides another communication method for a digital asset transaction, including:
receiving digital asset transaction information with a serial number sent by a transaction initiator, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark;
judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information;
if the digital asset transaction information meets the regulatory requirement, transmitting a transaction permission message with the serial number to the transaction initiator, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction;
receiving transaction information sent back by the transaction initiator, wherein the transaction information is used for carrying a transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used for performing the transaction of the digital asset according to a digital transaction request sent by the transaction initiator, and the blockchain sends back the transaction information indicating the completion of the digital asset transaction to the transaction initiator;
confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information;
if the digital asset transaction is completed in the blockchain, a transaction receipt is sent to the transaction initiator, the transaction receipt carrying the serial number.
With reference to the second aspect, in an implementation manner of the second aspect, after determining whether the digital asset transaction meets the regulatory requirement according to the digital asset transaction information, the method further includes:
if the digital asset transaction information does not meet regulatory requirements, a rejection message is sent to the transaction initiator.
With reference to the second aspect, in an implementation manner of the second aspect, the monitoring requirement is used to determine whether the digital asset transaction information conforms to a transfer rule (travel rule) of a backwashing Financial Action special purpose Task Force (FATF), whether the digital asset transaction information conforms to KYC (Know your Client, Know your customer) and AML (Anti-money laudering), and whether the user is in a blacklist of the FATF.
With reference to the second aspect, in an implementable manner of the second aspect, the transfer rule contains the following information: i) a name of the transaction initiator; ii) a wallet address of the transaction initiator or an account number at a digital asset facilitator; iii) the address of the transaction initiator, or a national identification number, or a customer identification number, or a date and place of birth; iv) the name of the transaction recipient; v) a wallet address of the transaction recipient or an account number at the digital asset facilitator.
With reference to the second aspect, in an implementation manner of the second aspect, after receiving the digital asset transaction information with the serial number sent by the transaction initiator, the method further includes:
determining whether a user initiating the digital asset transaction exists;
if the user does not exist, a rejection message is sent to the transaction initiator.
In a third aspect, an embodiment of the present application provides a communication device for digital asset transaction, including:
the system comprises a first information sending module, a transaction receiving party and a second information sending module, wherein the first information sending module is used for sending digital asset transaction information with a serial number to the transaction receiving party, and the serial number is used for identifying the digital asset transaction information so that the digital asset transaction information has a unique mark;
a first information receiving module, configured to receive a transaction permission message with the serial number and sent back by the transaction receiver, where the transaction permission message is used to indicate that a transaction initiator may perform a digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information;
a request sending module, configured to send a digital asset transaction request to a blockchain according to the transaction permission message, where the digital asset transaction request is used to instruct the blockchain to perform the digital asset transaction;
the first information generation module is used for generating transaction information of the block chain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the block chain;
the second information sending module is used for sending the transaction information to a transaction receiving party, wherein the transaction information is used for indicating the transaction receiving party to verify whether the digital asset transaction is completed in the block chain according to the transaction identification, and the transaction information carries the serial number;
and the receipt receiving module is used for receiving a transaction receipt sent back by the transaction receiving party, wherein the transaction receipt is the digital asset related information generated after the transaction receiving party confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number.
In a fourth aspect, an embodiment of the present application provides another communication device for digital asset transaction, including:
the system comprises a first information acquisition module, a transaction processing module and a second information acquisition module, wherein the first information acquisition module is used for receiving digital asset transaction information with a serial number sent by a transaction initiator, and the serial number is used for identifying the digital asset transaction information so that the digital asset transaction information has a unique mark;
the first judgment module is used for judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information; when the digital asset transaction information meets the regulatory requirement, transmitting a transaction permission message with the serial number to the transaction initiator, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction;
a second information obtaining module, configured to receive transaction information sent back by the transaction initiator, where the transaction information is used to carry a transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used to perform a transaction on a digital asset according to a digital transaction request sent by the transaction initiator, and the blockchain sends back transaction information indicating that the digital asset transaction is completed to the transaction initiator;
the second judgment module is used for confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information; when the digital asset transaction is completed in the blockchain, a transaction receipt is sent to the transaction initiator, the transaction receipt carrying the serial number.
In a fifth aspect, an embodiment of the present application provides a communication system for digital asset transaction, including a transaction initiator and a transaction receiver;
the transaction initiator is used for sending digital asset transaction information with a serial number to a transaction receiver, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark; receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that a transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information; sending a digital asset transaction request to a blockchain according to the transaction approval message, wherein the digital asset transaction request is used for indicating the blockchain to perform the digital asset transaction; generating transaction information of the blockchain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the blockchain; sending the transaction information to a transaction receiver, wherein the transaction information is used for indicating the transaction receiver to verify whether the digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number; receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is digital asset related information generated after the transaction receiver confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number;
the transaction receiver is used for receiving the digital asset transaction information with the serial number sent by the transaction initiator; judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information; if the digital asset transaction information meets the regulatory requirements, transmitting a transaction approval message with the serial number to the transaction initiator; receiving the transaction information sent back by the transaction initiator; confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information; if the digital asset transaction is completed in the blockchain, a transaction receipt number is sent to the transaction initiator.
According to the technical scheme, the embodiment of the application provides a communication method, a device and a system for digital asset transaction. According to the technical scheme, a transaction initiator and a transaction receiver communicate with each other, the transaction initiator sends related information of digital asset transaction to the transaction receiver, when the transaction receiver confirms that the transaction can be carried out, the transaction initiator completes the transaction of the digital asset in a blockchain, the transaction initiator sends transaction information to the transaction receiver, and after the transaction receiver confirms that the transaction is completed, a transaction receipt is sent back to the transaction initiator. Therefore, the technical scheme of the application can confirm whether the digital assets and the transaction meet the supervision requirements or not in the process of communication between two transaction parties, and confirm whether each message or data is fictitious or not through the serial numbers in the communication information of the two transaction parties, so that the safety of the digital asset transaction is ensured from multiple aspects.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a flow chart of a communication method for a digital asset transaction provided by an embodiment of the present application;
fig. 2 is a specific flowchart of step S101 provided in the embodiment of the present application;
fig. 3 is a specific flowchart of step S202 provided in the embodiment of the present application;
fig. 4 is a specific flowchart of step S302 according to an embodiment of the present application;
FIG. 5 is a flow chart of another method of communication for a digital asset transaction provided by an embodiment of the present application;
FIG. 6 is a communication interaction diagram of a transaction initiator and a transaction receiver according to an embodiment of the present disclosure;
FIG. 7 is a block diagram of a communication device for digital asset transaction provided by an embodiment of the present application;
FIG. 8 is a block diagram of another embodiment of a communication device for trading digital assets;
fig. 9 is a schematic diagram of a communication system for digital asset transaction provided by an embodiment of the application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a communication method for a digital asset transaction according to an embodiment of the present disclosure. As shown in fig. 1, a communication method for a digital asset transaction provided by an embodiment of the present application includes:
s101, sending digital asset transaction information with a serial number to a transaction receiver, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark.
The two communication parties in the present application include a transaction initiator and a transaction receiver, and the communication method in fig. 1 of the present application is specifically implemented in the transaction initiator. The transaction initiator and the transaction receiver refer to a digital asset facilitator which can perform digital asset transaction, and specifically may include a digital asset exchange, an escrow, or a digital asset wallet, etc.
In the embodiment of the application, a transaction initiator needs to collect digital asset transaction information related to the transaction and send the digital asset transaction information to a transaction receiver for verification after receiving an instruction of a user requesting to perform digital asset transaction operation, and the transaction initiator needs to allocate a unique serial number for identifying the transaction, wherein the serial numbers of the transactions are different.
The digital asset transaction information may include information of the user himself and information of the digital asset. The user information includes a user account number, a user name and the like, and the information of the digital asset specifically includes the transaction type of the digital asset, the address of the digital asset in the block, the transaction address of the digital asset and the like.
In addition, the digital asset transaction information can be expanded according to actual needs, for example, information of transaction initiation reasons, transaction information outside a block chain and the like can be added, and remark information which needs to be additionally added can also be added to the digital asset transaction information if the remark information needs to be additionally added.
And S102, receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information.
After receiving the digital asset transaction information, the transaction receiver verifies the user and the digital asset, and determines whether the user and the digital asset meet the regulatory requirements, for example, whether the digital asset transaction information conforms to the transfer rule of the FATF (for the specific content of the transfer rule of the FATF, see:https://www，fatf-gafi.org/media/fatf/ documents/recommendations/RBA-VA-VASPs.pdf) Determining whether the digital asset transaction information complies with AML and KYC regulations, determining whether the user is in a FATF blacklist and whether the digital asset type is an asset that allows transactions, and the like, wherein the transfer rules include the following information: i) a name of the transaction initiator; ii) a wallet address of the transaction initiator or an account number at a digital asset facilitator; iii) the address of the transaction initiator, or a national identification number, or a customer identification number, or a date and place of birth; iv) the name of the transaction recipient; v) a wallet address of the transaction recipient or an account number at the digital asset facilitator. Under the condition that both the user and the digital asset meet the supervision requirement, the transaction receiving party needs to send a transaction permission message back to the transaction initiating party to inform the transaction initiating party that the transaction can be carried out, and in order to enable the transaction initiating party to determine which transaction is permitted by the transaction permission message at this time, the transaction receiving party needs to carry a serial number in the transaction permission message, wherein the serial number is the same as the serial number in the received digital asset transaction information.
S103, according to the transaction permission message, sending a digital asset transaction request to a block chain, wherein the digital asset transaction request is used for indicating the block chain to perform the digital asset transaction.
The transaction initiator and the transaction receiver are mainly used for carrying out communication activities, and the transaction operation of the specific digital asset is carried out in the blockchain, so that when the transaction initiator confirms that the transaction can be carried out, a digital asset transaction request is sent to the blockchain, and the specific digital asset transfer operation is carried out in the blockchain.
And S104, generating transaction information of the block chain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the block chain.
After the transfer of the digital assets is completed in the blockchain, the transaction initiator correspondingly generates a transaction message. Moreover, since a situation that a plurality of digital assets exist on one blockchain or one digital asset exists in a plurality of blockchains at the same time may occur in the blockchain, each digital asset is marked by the blockchain, each transaction is also identified, the blockchain identifies each transaction to obtain a transaction identifier, and then the transaction identifier is also carried in transaction information generated by a transaction initiator. In addition, the transaction information in the application also comprises information such as specific amount of the digital asset transaction, transaction address and the like, so that a transaction initiator can conveniently master the transaction progress, and meanwhile, the transaction information also comprises a hash value generated in the digital asset transaction process.
And S105, sending the transaction information to a transaction receiving party, wherein the transaction information is used for indicating the transaction receiving party to verify whether the digital asset transaction is completed in the block chain according to the transaction identification, and the transaction information carries the serial number.
And the transaction receiver finds the specific position of the digital asset in the blockchain by using the transaction identifier in the transaction information, and further determines whether the asset is transferred into the target blockchain and whether the transferred asset is correct, so as to determine whether the digital asset transaction is completed in the blockchain.
If the transaction recipient has determined that the transaction in the target blockchain has been completed, a transaction receipt is sent to the transaction initiator confirming that the transaction has been completed. In addition, in order to indicate which digital asset transaction the transaction receipt belongs to, a serial number needs to be carried in the transaction receipt, and the serial number is the serial number in the digital asset transaction information corresponding to the transaction receipt.
In the embodiment of the application, in the process of communication between the transaction initiator and the transaction receiver, all information and messages carry the same serial number, which indicates that a series of messages using the same serial number belong to the same digital asset transaction.
S106, receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is the digital asset related information generated by the transaction receiver after confirming that the digital asset transaction is completed, and the transaction receipt carries the serial number.
Therefore, the communication method for the digital asset transaction provided by the embodiment of the application can complete the communication between the transaction initiator and the transaction receiver, each communication message carries the same serial number, each message is guaranteed to respond to the operation of the same digital asset transaction, the situation that a certain party of two transaction parties generates fictional data is avoided, the transaction initiator carries out the digital asset transaction after the transaction receiver determines that the digital asset transaction information is correct, and the digital asset transaction is guaranteed to meet the supervision requirement. The method ensures the safety of the digital asset transaction in various aspects.
Fig. 2 is a specific flowchart of step S101 provided in the embodiment of the present application. As shown in fig. 2, the step of sending the digital asset transaction information with the serial number to the transaction receiver provided by the embodiment of the present application specifically includes:
s201, distributing a serial number for the digital asset transaction, wherein the serial number has uniqueness, and the serial numbers corresponding to each digital asset transaction are different.
The sequence number is provided by the transaction initiator to assist the transaction recipient in the validation and administration of each message or message.
S202, encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information.
The digital asset transaction information sent by the transaction initiator to the transaction receiver needs to be encrypted, and the transaction receiver decrypts the encrypted digital asset transaction information after receiving the encrypted digital asset transaction information, so that the information is guaranteed against being tampered in the transmission process, and the safety of the digital asset transaction information is guaranteed.
S203, the encrypted digital asset transaction information is sent to the transaction receiving and sending party.
Therefore, the communication method for the digital asset transaction provided by the embodiment of the application is required to perform encryption processing in the transmission process of the digital asset transaction information, so that the security of the processing is ensured.
Fig. 3 is a specific flowchart of step S202 provided in the embodiment of the present application. As shown in fig. 3, the step of encrypting the digital asset transaction information with the serial number provided by the embodiment of the present application includes:
s301, coding the digital asset transaction information with the serial number, so that the digital asset transaction information with the serial number is serialized to obtain the coded digital asset transaction information.
The information before encryption needs to be coded, specifically, the digital asset transaction information is coded into an iso format, a programming process is also called a serialization process, and the digital asset transaction information is more convenient to encrypt after serialization.
S302, encrypting the coded digital asset transaction information to obtain the encrypted digital asset transaction information.
Therefore, the communication method for the digital asset transaction provided in the embodiment of the application needs to encode the digital asset transaction information and then encrypt the encoded digital asset transaction information, so that the encryption process is more convenient and faster.
Fig. 4 is a specific flowchart of step S302 according to the embodiment of the present application. As shown in fig. 4, the step of encrypting the encoded digital asset transaction information provided by the embodiment of the present application further includes:
s401, carrying out Hash calculation on the encrypted digital asset transaction information to generate a message abstract.
In the embodiment of the present application, the manner of performing hash calculation on the encrypted digital asset transaction information may be a method such as hash 160.
S402, encrypting the message digest by using a private key to obtain a digest signature, wherein the private key is provided by the transaction initiator.
The public key corresponding to the private key in the embodiment of the present application may be known by all transaction initiators and transaction receivers, and the cryptographic signature algorithm adopted in the embodiment of the present application is secp256k 1.
And S403, performing message encryption on the message digest and the digest signature by using a public key to obtain encrypted digital asset transaction information, wherein the public key is provided by a transaction receiver.
In the embodiment of the application, the transaction receiver provides the public key to encrypt the message digest and the digest signature, so that the transaction receiver can effectively decrypt the encrypted message to obtain the digital asset transaction message, and then judges whether the decrypted message conforms to the supervision operation; for example, whether the digital asset transaction information conforms to the travel rule of the FATF, and the like. The public key may be provided to a centralized digital asset exchange, escrow, or digital asset wallet, etc.
Therefore, the communication method for the digital asset transaction provided by the embodiment of the application performs multiple encryption operations on the digital asset transaction information, firstly obtains the digest signature, and then encrypts the message digest and the digest signature together, so as to ensure that the transmitted digital asset transaction information cannot be tampered.
Fig. 5 is a flow chart of another communication method for a digital asset transaction according to an embodiment of the present application. As shown in fig. 5, another communication method for a digital asset transaction provided by an embodiment of the present application includes the steps of:
s501, receiving digital asset transaction information with a serial number sent by a transaction initiator, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark.
S502, according to the digital asset transaction information, judging whether the digital asset transaction meets the supervision requirement.
S503, if the digital asset transaction information meets the regulatory requirement, a transaction permission message with the serial number is sent to the transaction initiator, and the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction.
Additionally, if the digital asset transaction information does not comply with regulatory requirements, a rejection message is sent to the transaction initiator.
S504, receiving the transaction information sent back by the transaction initiator, wherein the transaction information is used for carrying the transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used for performing the transaction of the digital asset according to the digital transaction request sent by the transaction initiator, and the blockchain sends the transaction information indicating the completion of the digital asset transaction back to the transaction initiator.
And S505, according to the transaction identification in the transaction information, confirming whether the corresponding digital asset transaction is completed in the block chain.
S506, if the digital asset transaction is completed in the block chain, sending a transaction receipt to the transaction initiator, wherein the transaction receipt carries the serial number.
Another communication method for digital asset transaction in the present application is implemented in the transaction receiver, and except for the contents of the above steps S501 to S506, the other contents are the same as those of the foregoing transaction initiator embodiment, and reference may be made to the foregoing contents, and details are not repeated here.
In addition, after receiving the digital asset transaction information with the serial number sent by the transaction initiator, whether the user initiating the digital asset transaction exists can be judged; if the user does not exist, a rejection message is sent to the transaction initiator. The case where the user does not exist as described herein includes: and when the transaction initiator receives the rejection message, the transfer operation of the digital assets in the block chain cannot be initiated, and the transaction initiator directly ends the task of the digital asset transaction.
Fig. 6 is a communication interaction diagram of a transaction initiator and a transaction receiver according to an embodiment of the present application. As shown in fig. 6, in the communication method for digital asset transaction provided in the embodiment of the present application, a transaction initiator and a transaction receiver communicate with each other, the transaction initiator sends related information of the digital asset transaction to the transaction receiver, when the transaction receiver confirms that the transaction can be performed, the transaction initiator completes the transaction of the digital asset in a blockchain, the transaction initiator sends the transaction information to the transaction receiver, and after the transaction receiver confirms that the transaction is completed, the transaction receiver sends a transaction receipt back to the transaction initiator. Therefore, the technical scheme of the application can confirm whether the digital assets and the transaction meet the supervision requirements or not in the process of communication between two transaction parties, and confirm whether each message or data is fictitious or not through the serial numbers in the communication information of the two transaction parties, so that the safety of the digital asset transaction is ensured from multiple aspects.
Fig. 7 is a block diagram of a communication device for digital asset transaction according to an embodiment of the present disclosure. As shown in fig. 7, the communication device for digital asset transaction provided by the embodiment of the present application includes:
a first information sending module 71, configured to send digital asset transaction information with a serial number to a transaction receiver, where the serial number is used to identify the digital asset transaction information, so that the digital asset transaction information has a unique identifier; a first information receiving module 72, configured to receive a transaction approval message with the serial number sent back by the transaction receiving party, where the transaction approval message is used to indicate that the transaction initiating party can perform a digital asset transaction, and the serial number in the transaction approval message is the same as the serial number in the digital asset transaction information; a request sending module 73, configured to send a digital asset transaction request to a blockchain according to the transaction permission message, where the digital asset transaction request is used to instruct the blockchain to perform the digital asset transaction; a first information generating module 74, configured to generate transaction information of the blockchain, where the transaction information is used to indicate that the digital asset transaction is completed, and the transaction information is further used to carry a transaction identifier of the digital asset transaction in the blockchain; a second information sending module 75, configured to send the transaction information to a transaction receiving party, where the transaction information is used to instruct the transaction receiving party to verify whether a digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number; and a receipt receiving module 76, configured to receive a transaction receipt sent back by the transaction receiving party, where the transaction receipt is related information of the digital asset generated by the transaction receiving party after the transaction receiving party confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number.
The first information sending module is further used for distributing a serial number for the digital asset transaction, the serial number has uniqueness, and the serial numbers corresponding to each digital asset transaction are different from each other; encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information; and sending the encrypted digital asset transaction information to the transaction receiving and sending party.
The first information sending module is also used for coding the digital asset transaction information with the serial number, so that the digital asset transaction information with the serial number is serialized to obtain the coded digital asset transaction information; and encrypting the coded digital asset transaction information to obtain the encrypted digital asset transaction information.
The first information sending module is also used for carrying out Hash calculation on the encrypted digital asset transaction information to generate a message abstract; encrypting the message digest by using a private key to obtain a digest signature, wherein the private key is provided by a transaction initiator; and carrying out message encryption on the message digest and the digest signature by using a public key to obtain encrypted digital asset transaction information, wherein the public key is provided by a transaction receiver.
Fig. 8 is a block diagram of another communication device for digital asset transaction according to an embodiment of the present disclosure. As shown in fig. 8, another communication device for digital asset transaction provided in the embodiment of the present application includes:
a first information obtaining module 81, configured to receive digital asset transaction information with a serial number sent by a transaction initiator, where the serial number is used to identify the digital asset transaction information, so that the digital asset transaction information has a unique identifier; a first judgment module 82, configured to judge whether the digital asset transaction meets a regulatory requirement according to the digital asset transaction information; when the digital asset transaction information meets the regulatory requirement, transmitting a transaction permission message with the serial number to the transaction initiator, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction; a second information obtaining module 83, configured to receive transaction information sent back by the transaction initiator, where the transaction information is used to carry a transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used to perform a transaction on the digital asset according to a digital transaction request sent by the transaction initiator, and the blockchain sends back transaction information indicating that the digital asset transaction is completed to the transaction initiator; a second determining module 84, configured to determine whether the corresponding digital asset transaction is completed in the block chain according to the transaction identifier in the transaction information; when the digital asset transaction is completed in the blockchain, a transaction receipt is sent to the transaction initiator, the transaction receipt carrying the serial number.
The first judging module is further configured to send a rejection message to the transaction initiator when the digital asset transaction information does not meet the regulatory requirement.
The device further comprises: a second determination module for determining whether a user initiating the digital asset transaction exists; and when the user does not exist, sending a rejection message to the transaction initiator.
Fig. 9 is a schematic diagram of a communication system for digital asset transaction provided by an embodiment of the application. As shown in fig. 9, the communication system for digital asset transaction provided by the embodiment of the present application includes a transaction initiator 91 and a transaction receiver 92;
the transaction initiator 91 is configured to send digital asset transaction information with a serial number to a transaction receiver, where the serial number is used to identify the digital asset transaction information, so that the digital asset transaction information has a unique identifier; receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that a transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information; sending a digital asset transaction request to a blockchain according to the transaction approval message, wherein the digital asset transaction request is used for indicating the blockchain to perform the digital asset transaction; generating transaction information of the blockchain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the blockchain; sending the transaction information to a transaction receiver, wherein the transaction information is used for indicating the transaction receiver to verify whether the digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number; receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is digital asset related information generated after the transaction receiver confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number;
the transaction receiver 92 is configured to receive digital asset transaction information with a serial number sent by a transaction initiator; judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information; if the digital asset transaction information meets the regulatory requirements, transmitting a transaction approval message with the serial number to the transaction initiator; receiving the transaction information sent back by the transaction initiator; confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information; if the digital asset transaction is completed in the blockchain, a transaction receipt number is sent to the transaction initiator.
The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (13)

1. A method of communicating a digital asset transaction, comprising:
sending digital asset transaction information with a serial number to a transaction receiver, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark;
receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that a transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information;
sending a digital asset transaction request to a blockchain according to the transaction approval message, wherein the digital asset transaction request is used for indicating the blockchain to perform the digital asset transaction;
generating transaction information of the blockchain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the blockchain;
sending the transaction information to a transaction receiver, wherein the transaction information is used for indicating the transaction receiver to verify whether the digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number;
and receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is digital asset related information generated after the transaction receiver confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number.
2. The method of claim 1, wherein the step of sending the digital asset transaction information with the serial number to the transaction recipient comprises:
distributing a serial number for the digital asset transaction, wherein the serial number has uniqueness, and the serial numbers corresponding to each digital asset transaction are different;
encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information;
and sending the encrypted digital asset transaction information to the transaction receiving and sending party.
3. The method of claim 2, wherein the step of encrypting the digital asset transaction information with the serial number to obtain the encrypted digital asset transaction information comprises:
coding the digital asset transaction information with the serial number, so that the digital asset transaction information with the serial number is serialized to obtain the coded digital asset transaction information;
and encrypting the coded digital asset transaction information to obtain the encrypted digital asset transaction information.
4. The method of claim 3, wherein the step of encrypting the encoded digital asset transaction information to obtain encrypted digital asset transaction information comprises:
performing hash calculation on the encrypted digital asset transaction information to generate a message digest;
encrypting the message digest by using a private key to obtain a digest signature, wherein the private key is provided by a transaction initiator;
and carrying out message encryption on the message digest and the digest signature by using a public key to obtain encrypted digital asset transaction information, wherein the public key is provided by a transaction receiver.
5. The method of any of claims 1-4, wherein the transaction information comprises a hash value generated during the digital asset transaction.
6. A method of communicating a digital asset transaction, comprising:
receiving digital asset transaction information with a serial number sent by a transaction initiator, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark;
judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information;
if the digital asset transaction information meets the regulatory requirement, transmitting a transaction permission message with the serial number to the transaction initiator, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction;
receiving transaction information sent back by the transaction initiator, wherein the transaction information is used for carrying a transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used for performing the transaction of the digital asset according to a digital transaction request sent by the transaction initiator, and the blockchain sends back the transaction information indicating the completion of the digital asset transaction to the transaction initiator;
confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information;
if the digital asset transaction is completed in the blockchain, a transaction receipt is sent to the transaction initiator, the transaction receipt carrying the serial number.
7. The method of claim 6, wherein after determining whether the digital asset transaction complies with regulatory requirements based on the digital asset transaction information, further comprising:
if the digital asset transaction information does not meet regulatory requirements, a rejection message is sent to the transaction initiator.
8. The method of claim 7, wherein the regulatory requirements are used to determine whether the digital asset transaction information complies with transfer rules for anti-money laundering financial action special teams.
9. The method of claim 7, wherein the transfer rules include the following information:
i) a name of the transaction initiator;
ii) a wallet address of the transaction initiator or an account number at a digital asset facilitator;
iii) the address of the transaction initiator, or a national identification number, or a customer identification number, or a date and place of birth;
iv) the name of the transaction recipient;
v) a wallet address of the transaction recipient or an account number at the digital asset facilitator.
10. The method of claim 6, wherein after receiving the digital asset transaction information with the serial number sent by the transaction initiator, further comprising:
determining whether a user initiating the digital asset transaction exists;
if the user does not exist, a rejection message is sent to the transaction initiator.
11. A communication device for a digital asset transaction, comprising:
the system comprises a first information sending module, a transaction receiving party and a second information sending module, wherein the first information sending module is used for sending digital asset transaction information with a serial number to the transaction receiving party, and the serial number is used for identifying the digital asset transaction information so that the digital asset transaction information has a unique mark;
a first information receiving module, configured to receive a transaction permission message with the serial number and sent back by the transaction receiver, where the transaction permission message is used to indicate that a transaction initiator may perform a digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information;
a request sending module, configured to send a digital asset transaction request to a blockchain according to the transaction permission message, where the digital asset transaction request is used to instruct the blockchain to perform the digital asset transaction;
the first information generation module is used for generating transaction information of the block chain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the block chain;
the second information sending module is used for sending the transaction information to a transaction receiving party, wherein the transaction information is used for indicating the transaction receiving party to verify whether the digital asset transaction is completed in the block chain according to the transaction identification, and the transaction information carries the serial number;
and the receipt receiving module is used for receiving a transaction receipt sent back by the transaction receiving party, wherein the transaction receipt is the digital asset related information generated after the transaction receiving party confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number.
12. A communication device for a digital asset transaction, comprising:
the system comprises a first information acquisition module, a transaction processing module and a second information acquisition module, wherein the first information acquisition module is used for receiving digital asset transaction information with a serial number sent by a transaction initiator, and the serial number is used for identifying the digital asset transaction information so that the digital asset transaction information has a unique mark;
the first judgment module is used for judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information; when the digital asset transaction information meets the regulatory requirement, transmitting a transaction permission message with the serial number to the transaction initiator, wherein the transaction permission message is used for indicating that the transaction initiator can perform digital asset transaction;
a second information obtaining module, configured to receive transaction information sent back by the transaction initiator, where the transaction information is used to carry a transaction identifier and the serial number of the digital asset transaction in a blockchain, the blockchain is used to perform a transaction on a digital asset according to a digital transaction request sent by the transaction initiator, and the blockchain sends back transaction information indicating that the digital asset transaction is completed to the transaction initiator;
the second judgment module is used for confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information; when the digital asset transaction is completed in the blockchain, a transaction receipt is sent to the transaction initiator, the transaction receipt carrying the serial number.
13. A communication system for digital asset transactions, comprising a transaction initiator and a transaction receiver;
the transaction initiator is used for sending digital asset transaction information with a serial number to a transaction receiver, wherein the serial number is used for identifying the digital asset transaction information, so that the digital asset transaction information has a unique mark; receiving a transaction permission message with the serial number sent back by the transaction receiver, wherein the transaction permission message is used for indicating that a transaction initiator can perform digital asset transaction, and the serial number in the transaction permission message is the same as the serial number in the digital asset transaction information; sending a digital asset transaction request to a blockchain according to the transaction approval message, wherein the digital asset transaction request is used for indicating the blockchain to perform the digital asset transaction; generating transaction information of the blockchain, wherein the transaction information is used for indicating that the digital asset transaction is completed, and the transaction information is also used for carrying a transaction identifier of the digital asset transaction in the blockchain; sending the transaction information to a transaction receiver, wherein the transaction information is used for indicating the transaction receiver to verify whether the digital asset transaction is completed in the block chain according to the transaction identifier, and the transaction information carries the serial number; receiving a transaction receipt sent back by a transaction receiver, wherein the transaction receipt is digital asset related information generated after the transaction receiver confirms that the digital asset transaction is completed, and the transaction receipt carries the serial number;
the transaction receiver is used for receiving the digital asset transaction information with the serial number sent by the transaction initiator; judging whether the digital asset transaction meets the supervision requirement or not according to the digital asset transaction information; if the digital asset transaction information meets the regulatory requirements, transmitting a transaction approval message with the serial number to the transaction initiator; receiving the transaction information sent back by the transaction initiator; confirming whether the corresponding digital asset transaction is finished in the block chain according to the transaction identifier in the transaction information; if the digital asset transaction is completed in the blockchain, a transaction receipt number is sent to the transaction initiator.
CN201911086629.1A 2019-11-08 2019-11-08 Communication method, device and system for digital asset transaction Pending CN110969529A (en)

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