CN107103537B - Block chain-based digital asset transaction method and system - Google Patents
Block chain-based digital asset transaction method and system Download PDFInfo
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- CN107103537B CN107103537B CN201710469868.XA CN201710469868A CN107103537B CN 107103537 B CN107103537 B CN 107103537B CN 201710469868 A CN201710469868 A CN 201710469868A CN 107103537 B CN107103537 B CN 107103537B
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Abstract
The invention provides a block chain-based digital asset transaction method, which comprises the following steps: when a transaction request which is sent by a transaction initiator and carries transaction limiting conditions is received, a transaction block corresponding to the transaction request is generated; when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction; and after receiving a command of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain. By the method of the embodiment, the blockchain of the transaction generated in the transaction process is annihilated after the transaction is finished, and all transaction processes are erased, so that once the transaction is finished, anyone cannot acquire the transaction condition of the transaction, the confidentiality is high, and the whole transaction process is simple and time-saving.
Description
Technical Field
The invention relates to the field of virtual transaction, in particular to a digital asset transaction method and system based on a block chain.
Background
At present, a digital asset transaction is usually performed by using a blockchain technology, and generally involves a large blockchain in the transaction process, for example, a bitcoin transaction requires links such as purchase, registration, login, release transaction, pending confirmation, transaction completion, and transaction information uplink. The transaction mode is high in time cost for transactions with small transaction quantity and short duration or for one-time transactions, the whole transaction process is recorded, once transaction information is formed, the transaction information is easily known by others, and the confidentiality is poor.
Disclosure of Invention
In view of the above, the embodiment of the invention discloses a block chain-based digital asset transaction method and system, wherein a corresponding block chain is generated in the transaction process, and the block chain generated in the transaction process is annihilated after the transaction is finished, so that the whole transaction process cannot be recorded, the information safety of transaction participants is ensured, and the whole transaction process is simple and time-saving.
The embodiment of the invention provides a block chain-based digital asset transaction method, which comprises the following steps:
when a transaction request which is sent by a transaction initiator and carries transaction limiting conditions is received, a transaction block corresponding to the transaction request is generated;
when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent;
determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
and after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain.
Optionally, the transaction qualifying condition comprises one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
Optionally, determining the target counterparty according to a preset rule includes:
if only one detected counterparty is available, determining the detected counterparty as a target counterparty;
alternatively, the first and second electrodes may be,
if a plurality of detected transaction opponents are available, determining the transaction opponent with the highest bid as a target transaction opponent;
or
And if a plurality of detected transaction opponents are detected, determining the transaction opponents selected by the transaction initiator as target transaction opponents.
Optionally, the method further includes:
and the transaction initiator and the target transaction opponent inquire the change condition of the digital assets in a preset mode.
Optionally, the method further includes:
screening users matched with the transaction;
and sending the relevant information of the transaction to the screened user matched with the transaction.
The embodiment of the invention also provides a block chain-based digital asset transaction system, which comprises:
the block generating unit is used for generating a transaction block corresponding to a transaction request when receiving the transaction request which is sent by a transaction initiator and carries transaction limiting conditions;
the block chain generating unit is used for generating a block chain corresponding to a transaction opponent when the transaction opponent is detected, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent;
the determining unit is used for determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
and the annihilation unit is used for erasing transaction data generated in the transaction process and annihilating the block chain after receiving the instruction of transaction end.
Optionally, the transaction qualifying condition comprises one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
Optionally, the determining unit includes:
a first determining subunit, configured to determine, if there is only one detected counterparty, the detected counterparty as a target counterparty;
or may comprise, in combination with the above-mentioned,
the second determining subunit is used for determining the trading opponent with the highest bid price as the target trading opponent if the detected trading opponents are multiple;
or may comprise, in combination with the above-mentioned,
and the third determining subunit is used for determining the transaction opponent selected by the transaction initiator as the target transaction opponent if a plurality of detected transaction opponents are detected.
Optionally, the method further includes:
and the query unit is used for querying the change condition of the digital assets by the transaction initiator and the target transaction opponent in a preset mode.
Optionally, the method further includes:
the screening unit is used for screening the users matched with the transaction;
and the sending unit is used for sending the relevant information of the transaction to the screened user matched with the transaction.
In this embodiment, when a transaction request carrying a transaction limiting condition sent by a transaction initiator is received, a transaction block corresponding to the transaction request is generated; when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction; and after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain. By the method of the embodiment, the blockchain of the transaction generated in the transaction process is annihilated after the transaction is finished, and all transaction processes are erased, so that once the transaction is finished, anyone cannot acquire the transaction condition of the transaction, the confidentiality is high, and the whole transaction process is simple and time-saving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flow chart illustrating a block chain based digital asset transaction method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating a block chain-based digital asset transaction system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flow diagram of a method for block chain-based digital asset transaction according to an embodiment of the present invention is shown, where the method may include:
s101: when a transaction request which is sent by a transaction initiator and carries transaction limiting conditions is received, a transaction block corresponding to the transaction request is generated;
in this embodiment, the transaction initiated by the transaction initiator may be understood as a one-time transaction, and the transaction initiator may define the initiated transaction when initiating the transaction request, specifically, the transaction defining condition may include one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
For example, the following steps are carried out: for rule one: when the transaction initiator initiates the transaction, the transaction is ended within 30 minutes by limiting the transaction time to be 30 minutes; for rule two: the number of people participating in the transaction is limited to be 10 by the initiator of the transaction when the transaction is initiated, and only 10 counterparties are allowed to participate in the transaction; for rule three: suppose that each counterparty participating in the transaction can have the qualification of price inquiry for 3 times, namely each counterparty participating in the transaction can inquire the system about the price of other counterparty for 3 times at most; for rule four: the number of bids for each of the trading partners involved in the current transaction is limited, for example, the number of bids may be 3. In addition, when the transaction is initiated, the initiator of the transaction can also limit the transaction to meet a plurality of the rules.
In this embodiment, when the user initiates the transaction, the rules may be directly set, or one or more rules may be selected according to a preset selection type.
In this embodiment, after generating the block corresponding to the transaction request, the system may find the block to push the transaction, or may push the transaction to a targeted user, specifically, the method may further include:
screening users matched with the transaction;
and sending the relevant information of the transaction to the screened user matched with the transaction.
For example, the following steps are carried out: and if the digital assets auctioned by the transaction initiator are digital assets corresponding to the second-hand mobile phone, the system can automatically screen users who have requirements on the second-hand mobile phone.
S102: when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent;
in this embodiment, after the transaction block is generated, the block chain corresponding to the transaction opponent can be generated by the transaction opponent entering the transaction block. After the transaction opponent enters the transaction block, the system can randomly distribute a public key for the transaction opponent, and the public key can be understood as an account number of the transaction opponent entering the transaction or a number of the transaction opponent participating in the transaction; the counterparty participating in the transaction can set the dynamic password participating in the transaction by himself; the public key and the dynamic password of the counterparty of the transaction are matched. When the public key and the dynamic password of the transaction opponent in the transaction are generated, the transaction opponent can enter the transaction at any time to check the transaction condition or bid by means of the generated transaction public key and the dynamic password before the transaction is not finished.
In this embodiment, in addition, a public key needs to be allocated to the initiator of the transaction, and the initiator of the transaction may further set a dynamic password corresponding to the public key, and before the transaction is not completed, the initiator of the transaction may enter the transaction through the public key and the dynamic password to check the transaction condition.
S103: determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
in this embodiment, at least one transaction opponent participating in the transaction may be involved in the transaction, the transaction party of the transaction may be determined only in the transaction, and the transaction of the transaction party determined in the transaction is only effective in the transaction, and for the determination of the transaction party, the specific step S103 may include:
if only one detected counterparty is available, determining the detected counterparty as a target counterparty;
alternatively, the first and second electrodes may be,
if a plurality of detected transaction opponents are available, determining the transaction opponent with the highest bid as a target transaction opponent;
or
And if a plurality of detected transaction opponents are detected, determining the transaction opponents selected by the transaction initiator as target transaction opponents.
For example, the following steps are carried out: if only one detected trading opponent exists within the trading time limited by the trading initiator, namely only one trading opponent participating in the trading (a trading bidder) exists, the trading opponent is a target trading opponent. Or, if the transaction initiator initiates the transaction, the number of the transaction opponents participating in the transaction is limited to 1, that is, as long as the transaction opponents are detected and bid, the transaction opponents are the target transaction opponents.
If a plurality of transaction counter-parties are detected within the limited transaction time, namely a plurality of bidders participating in the transaction are detected, each transaction counter-party bids within the limited transaction time, and when the transaction time is up, the transaction counter-party with the highest bid is determined as a target transaction counter-party; or, in the process of bidding, the transaction initiator considers that the mind expectation is reached and the target transaction counter-party can be determined by the transaction initiator at any time
If the number of the transaction opponents participating in the transaction is limited to 8 by the transaction initiator, after 8 transaction opponents enter the transaction, the party with the higher price can become the target transaction opponent, or the transaction initiator considers that the target transaction opponents can be sold after the expectation of mind is reached in the process of price offering, and the target transaction opponents can be determined by the transaction initiator at any time.
S104: and after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain.
In this embodiment, within a preset time period, when the bidding is finished, the transaction is finished; or, when the transaction initiator chooses to end the transaction, the transaction is ended.
For example, the following steps are carried out: within a limited transaction time, a plurality of transaction opponents participate in bidding of the transaction, and after the bidding is finished, the transaction opponents with higher bidding are target transaction opponents to indicate that the transaction is finished;
or after the transaction block is generated, a transaction opponent enters the transaction block successively, the transaction opponent bids on the digital assets bidding at this time successively, when the price of a certain transaction opponent reaches the psychological expectation of the transaction initiator or the transaction initiator wants to finish the transaction as soon as possible, the transaction initiator autonomously selects a target transaction opponent, and the transaction initiator finishes the transaction after determining that the transaction is finished.
Or, in the transaction process, the transaction initiator gives up the transaction actively, which indicates that the transaction is finished.
In this embodiment, after the system receives the instruction of ending the transaction, the transaction data generated in the transaction process is erased, and the transaction block chain is annihilated. It can also be understood that after the transaction is over, the remaining traces are removed except for the changes of the digital assets and funds which remain in the transaction. For example, the following steps are carried out: and after the transaction is finished, erasing the transaction process of the whole transaction, such as: public keys, dynamic passwords, bids of transaction opponents, target transaction opponents and the like generated in the transaction process; and annihilate the chain of blocks generated during the transaction. But the result of the transaction is preserved, i.e. the digital assets of the transaction are transferred from the transaction initiator to the target transaction opponent, the funds of the transaction are transferred from the target transaction opponent to the transaction initiator, the processes of digital assets and funds transfer are eliminated, and only the result of the transaction transfer exists.
In this embodiment, after the transaction is finished, the transaction initiator and the transaction bargaining party can transfer the digital assets and funds of the transaction, that is, offline transaction can be performed; in addition, the transaction initiator and the transaction counterparty may also perform a transfer of the digital assets and funds of the transaction before the transaction is completed.
When the digital assets of the transaction initiator are transferred to the account of the target transaction counterpart, the digital assets of the transaction initiator and the target transaction counterpart account are changed. Then, the transaction initiator and the target transaction opponent can log in their own account at any time to check the change condition of the digital assets, specifically, the method further comprises the following steps:
and the transaction initiator and the target transaction opponent inquire the change condition of the digital assets in a preset mode.
In this embodiment, the preset manner may be that the transaction initiator and the target transaction opponent log in their own accounts to perform the query.
In this embodiment, when a transaction request carrying a transaction limiting condition sent by a transaction initiator is received, a transaction block corresponding to the transaction request is generated; when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction; and after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain. By the method of the embodiment, the blockchain of the transaction generated in the transaction process is annihilated after the transaction is finished, and all transaction processes are erased, so that once the transaction is finished, anyone cannot acquire the transaction condition of the transaction, the confidentiality is high, and the whole transaction process is simple and time-saving.
Referring to fig. 2, a schematic structural diagram of a block chain-based digital asset transaction system according to an embodiment of the present invention is shown, where the system may include:
the block generating unit 201 is configured to generate a transaction block corresponding to a transaction request when receiving the transaction request carrying a transaction limiting condition sent by a transaction initiator;
the blockchain generating unit 202 is configured to generate a blockchain corresponding to a transaction opponent when the transaction opponent is detected, randomly allocate a public key to the transaction opponent, and receive a dynamic password set by the transaction opponent;
a determining unit 203, configured to determine a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
and the annihilation unit 204 is used for erasing transaction data generated in the transaction process and annihilating the block chain after receiving a command of transaction end.
Optionally, the transaction qualifying condition comprises one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
Optionally, the determining unit includes:
a first determining subunit, configured to determine, if there is only one detected counterparty, the detected counterparty as a target counterparty;
or may comprise, in combination with the above-mentioned,
the second determining subunit is used for determining the trading opponent with the highest bid price as the target trading opponent if the detected trading opponents are multiple;
or may comprise, in combination with the above-mentioned,
and the third determining subunit is used for determining the transaction opponent selected by the transaction initiator as the target transaction opponent if a plurality of detected transaction opponents are detected.
Optionally, the method further includes:
and the query unit is used for querying the change condition of the digital assets by the transaction initiator and the target transaction opponent in a preset mode.
Optionally, the method further includes:
the screening unit is used for screening the users matched with the transaction;
and the sending unit is used for sending the relevant information of the transaction to the screened user matched with the transaction.
In this embodiment, when a transaction request carrying a transaction limiting condition sent by a transaction initiator is received, a transaction block corresponding to the transaction request is generated; when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction; and after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain. By the system of the embodiment, the blockchain of the transaction generated in the transaction process is annihilated after the transaction is finished, and all transaction processes are erased, so that once the transaction is finished, anyone cannot acquire the transaction condition of the transaction, the confidentiality is high, and the whole transaction process is simple and time-saving.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A blockchain-based digital asset transaction method, the method comprising:
when a transaction request which is sent by a transaction initiator and carries transaction limiting conditions is received, a transaction block corresponding to the transaction request is generated;
when a transaction opponent is detected, generating a block chain corresponding to the transaction opponent, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; the public key and the dynamic password are used for enabling the transaction opponent to enter the transaction to check transaction conditions or bid before the transaction is finished;
determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
after receiving an instruction of transaction ending, erasing transaction data generated in the transaction process and annihilating the block chain; the transaction data comprises a public key, a dynamic password, a bid price of a transaction opponent and a target transaction opponent, wherein the public key and the dynamic password are generated in the transaction process.
2. The method of claim 1, wherein the transaction qualifying condition comprises one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
3. The method of claim 1, wherein determining the target counterparty according to preset rules comprises:
if only one detected counterparty is available, determining the detected counterparty as a target counterparty;
alternatively, the first and second electrodes may be,
if a plurality of detected transaction opponents are available, determining the transaction opponent with the highest bid as a target transaction opponent;
or
And if a plurality of detected transaction opponents are detected, determining the transaction opponents selected by the transaction initiator as target transaction opponents.
4. The method of claim 1, further comprising:
and the transaction initiator and the target transaction opponent inquire the change condition of the digital assets in a preset mode.
5. The method of claim 1, further comprising:
screening users matched with the transaction;
and sending the relevant information of the transaction to the screened user matched with the transaction.
6. A blockchain-based digital asset transaction system, the system comprising:
the block generating unit is used for generating a transaction block corresponding to a transaction request when receiving the transaction request which is sent by a transaction initiator and carries transaction limiting conditions;
the block chain generating unit is used for generating a block chain corresponding to a transaction opponent when the transaction opponent is detected, randomly distributing a public key for the transaction opponent and receiving a dynamic password set by the transaction opponent; the public key and the dynamic password are used for enabling the transaction opponent to enter the transaction to check transaction conditions or bid before the transaction is finished;
the determining unit is used for determining a target transaction opponent according to a preset rule; the target transaction opponent is a transaction party of the transaction;
the annihilation unit is used for erasing transaction data generated in the transaction process and annihilating the block chain after receiving a command of transaction end; the transaction data comprises a public key, a dynamic password, a bid price of a transaction opponent and a target transaction opponent, wherein the public key and the dynamic password are generated in the transaction process.
7. The system of claim 6,
the transaction qualifying condition comprises one or more of the following rules:
rule one is as follows: the transaction is ended within a preset time period;
rule two: the transaction comprises a preset number of counterparties;
rule three: in the transaction process, the price inquiring times of each transaction opponent is less than or equal to a preset price inquiring threshold value;
rule four: in the transaction process, the bidding times of each transaction opponent are less than or equal to a preset bidding threshold value.
8. The system of claim 6, wherein the determining unit comprises:
a first determining subunit, configured to determine, if there is only one detected counterparty, the detected counterparty as a target counterparty;
or may comprise, in combination with the above-mentioned,
the second determining subunit is used for determining the trading opponent with the highest bid price as the target trading opponent if the detected trading opponents are multiple;
or may comprise, in combination with the above-mentioned,
and the third determining subunit is used for determining the transaction opponent selected by the transaction initiator as the target transaction opponent if a plurality of detected transaction opponents are detected.
9. The system of claim 6, further comprising:
and the query unit is used for querying the change condition of the digital assets by the transaction initiator and the target transaction opponent in a preset mode.
10. The system of claim 6, further comprising:
the screening unit is used for screening the users matched with the transaction;
and the sending unit is used for sending the relevant information of the transaction to the screened user matched with the transaction.
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| WO2019049022A1 (en) * | 2017-09-08 | 2019-03-14 | nChain Holdings Limited | Improved time lock technique for securing a resource on a blockchain |
| CN109432784B (en) * | 2018-11-07 | 2020-06-30 | 四川长虹电器股份有限公司 | Account transaction processing method and device based on block chain |
| CN111639997A (en) * | 2019-03-01 | 2020-09-08 | 中国银联股份有限公司 | Transaction management method and device based on associated transaction rules |
| CN113298659A (en) * | 2021-06-22 | 2021-08-24 | 上海和数软件有限公司 | Block chain-based digital asset transaction method |
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