CN109377359A - A kind of discounted note transaction match method based on block chain - Google Patents
A kind of discounted note transaction match method based on block chain Download PDFInfo
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- CN109377359A CN109377359A CN201810958926.XA CN201810958926A CN109377359A CN 109377359 A CN109377359 A CN 109377359A CN 201810958926 A CN201810958926 A CN 201810958926A CN 109377359 A CN109377359 A CN 109377359A
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- discounted note
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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
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- 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
- H04L63/045—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 hybrid encryption, i.e. combination of symmetric and asymmetric encryption
Abstract
The present invention proposes a kind of discounted note transaction match method based on block chain.Discounted note application information is converted to discounted note demand information and is published on block platform chain by bill operation receiving party；Participant obtains discounted note demand information from block platform chain and forms demand return information；Participant is by demand return information encrypting and transmitting to block platform chain；Receiving party obtains encrypted demand return information from block platform chain, is decrypted and selects counterparty side in participant；Receiving party will be sent to block platform chain after the selection result information encryption for each participant, and initiate discounted note business to counterparty side；Participant is decrypted after obtaining encrypted selection result information, and the participant for being selected as counterparty side starts handling for discounted note business.The present invention such as takes full advantage of the decentralization of block chain technology, can not distort at the characteristics, solves the trust problem in discounted note transaction, establishes believable bill business and shares account book, effectively takes precautions against bill market risk.
Description
Technical field
The invention belongs to internet financial technology fields, and in particular to it is a kind of based on block chain discounted note transaction bring together
Method.
Background technique
Bill is the marketable securities for representing the certain amount currency right of asking for, reacts the written confirmation of bonded debts relationship, can
For the payment and settlement and enterprise's short fund in trade.The modes of doing business such as the negotiability and discount of bill are that real economy is special
It is not that medium-sized and small enterprises provide convenient and fast credit extending channel.
In recent years, a lot of bill cases have been broken out in China, reflect risk present in bill operation.Bill sign and issue,
It transfers the possession of, discount, tens links such as discounts, takes care of, honouring again, chain is very long, provides huge space for criminal.Ticket
According to authenticity and a ticket oversold the problems such as remain incessant after repeated prohibition.In addition, bill market information asymmetry, bill business low efficiency
Under, transaction cost and audit are at high cost.
China's electronic billing system (ECDS) has had the access systems such as many business banks, capital company since carrying out,
The risk in operation is inhibited to a certain extent.But ECDS is centralized system, one side ECDS requirements for sale is stringent, connects
Enter demand at high cost, and not being able to satisfy each participant's personalization；Information comes into the open in another aspect ECDS, and business privacy is easy
Leakage.
Block chain is a kind of decentralization, the distributed data base technique participated in by each node.It is chased after with complete
It traces back, decentralization and the features such as go credit.Realizing that the transaction of discounted note is brought together based on block chain technology can be improved transaction
Authenticity and fairness, improve the safety and privacy of data.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the discounted note transaction pinch based on block chain that the present invention provides a kind of
Conjunction method.This method such as takes full advantage of the decentralization of block chain technology, can not distort at the characteristics, solves in discounted note transaction
Trust problem, establish believable bill business and share account book, effectively take precautions against bill market risk, realize transaction it is traceable,
Authenticity and fairness.
In order to solve the above-mentioned technical problem technical solution is a kind of discounted note transaction side of brining together based on block chain
Method includes the following steps: that client proposes discounted note application to bill operation receiving party；Bill operation receiving party is by discounted note
Application information is converted to discounted note demand information and is published on block platform chain；Participant obtains bill patch from block platform chain
Existing demand information simultaneously forms demand return information；Participant is by demand return information encrypting and transmitting to block platform chain；It accepts
Side obtains encrypted demand return information from block platform chain, is decrypted and selects counterparty side in participant；By
Reason side will be sent to block platform chain after the selection result information encryption for each participant, and initiate bill to counterparty side
Discounting business；Participant is decrypted after obtaining encrypted selection result information, and the participant for being selected as counterparty side starts
Discounted note business is handled.
As a preferred embodiment, the discounted note demand information includes discounted note application information and corresponding
Application serial number.
As a preferred embodiment, the demand return information includes whether participant participates in discount transaction, with
And if participate in acceptance rate given when discount transaction.
As a preferred embodiment, the participant is by demand return information encrypting and transmitting to block platform chain
Process are as follows: generate symmetrical code key；Demand return information is encrypted using symmetrical code key, generates demand return information ciphertext；
Symmetrical code key is encrypted using receiving party's public key, generates code key ciphertext；Demand return information ciphertext and code key ciphertext are beaten
Packet generates plus demand replys scrambled record information, and is sent to block platform chain.
As a preferred embodiment, the receiving party selects the process of counterparty side are as follows: receiving party is from block chain
Platform obtains demand and replys scrambled record information；Receiving party is replied in scrambled record information using the private key decryption demand of oneself
Code key ciphertext, the symmetrical code key after obtaining decryption；Receiving party is replied in scrambled record information using symmetrical code key decryption demand
Demand return information ciphertext, the demand return information after obtaining decryption；The demand return information of more each participant of receiving party, choosing
Select optimal counterparty side.
As a preferred embodiment, the optimal counterparty side is all participants for agreeing to receive demand
In one.
As a preferred embodiment, the selection result information refers to counterparty side's selection knot that receiving party determines
Fruit, including at least informing if selecting a certain participant as counterparty side, in the selection result information being sent to it should
Counterparty is selected as information, billing information and the Transaction Information of counterparty side, if a certain participant is not selected for
Counterparty side includes at least in the selection result information being then sent to it and informs that the counterparty is not selected for counterparty side
Information.
As a preferred embodiment, the selection result information encryption for each participant, which refers to, to be used from corresponding
The received symmetrical secret key pair selection result information of participant is encrypted.
As a preferred embodiment, after the receiving party initiates discounted note business, pass through the electricity of clearing house
Sub- billing system handles discounted note business.
The present invention is applied to discounted note field, and type of business is modified slightly the other type transactions that can also be used for bill
In, such as notes rediscounted, bill specially discount, bill hypothecation.Other features and advantages of the present invention will be in subsequent specification
Middle elaboration, and partly as will become apparent from the description, or understand through the implementation of the invention.
Detailed description of the invention
Fig. 1 be based on block chain discounted note transaction match method flow chart.
Fig. 2 is the flow chart that block platform chain is arrived in the encryption storage of demand return information.
Fig. 3 is acquisition demand return information and the flow chart for selecting counterparty side.
Specific embodiment
It is readily appreciated that, technical solution according to the present invention, in the case where not changing connotation of the invention, this field
Those skilled in the art can imagine numerous embodiments of the invention.Therefore, following specific embodiments and attached drawing are only
To the exemplary illustration of technical solution of the present invention, and it is not to be construed as whole of the invention or is considered as to the technology of the present invention side
The limitation or restriction of case.
The present embodiment realizes that the authenticity and justice that can be improved transaction are brought in discounted note transaction together by block chain technology
Property, improve the safety and privacy of data.In conjunction with attached drawing, hypothesis shares the receiving party of 1 discounted note business in the present embodiment
A, the participant B and C of two discounted note business.A, B and C tripartite is owned by respective public private key pair, wherein public key information is public
It opens, each side can obtain the public key of other side；Private key information only has each side owned.
As shown in Figure 1, be the discounted note transaction match method flow chart shown in the present embodiment based on block chain, it is specific to wrap
Include following basic step:
Step 101, client proposes discounted note application to bill operation receiving party A, and receiving party A is this discounted note Shen
Application serial number please be distribute, this application serial number is this unique number of discounted note application in block chain network；
Step 102, discounted note application information is converted to discounted note demand information and is published to by bill operation receiving party A
On block platform chain, block platform chain ensures the data consistency in block chain network on each node by common recognition mechanism.It is described
Discounted note demand information is the discounted note application information after desensitization, and contains application serial number.Block chain in the present invention
Platform namely block chain network are that a kind of the whole network safeguarded jointly by multiple participants unifies account book, on the node of each participation
Data are finally all consistent.Block chain network uses super account book fabric network in the present embodiment.So-called data desensitize
Refer to the deformation that certain sensitive informations are carried out with data by desensitization rule, realizes the reliably protecting of privacy-sensitive data.Such as identity
The personal information such as card number, cell-phone number, card number, customer ID require to carry out data desensitization.
Step 103, participant obtains discounted note demand information from block platform chain, and carries out demand processing.The need
The process for asking processing is to analyze the received discounted note demand, and determine whether to participate in discount transaction and provide
The discount rate of bill.
In the present embodiment, it is assumed that participant B obtains discounted note demand information from block platform chain, and carries out demand processing
Afterwards, agree to participate in the discount transaction that receiving party A lifts, and provide discount rate 5%；Similar, participant C agrees to participate in receiving party
The discount transaction that A lifts, and provide discount rate 6%.
Step 104, participant B and C respectively encrypts demand return information, and is sent to block platform chain.Step tool
Body process is as shown in Fig. 2, be divided into following steps:
In step 201, symmetrical code key is generated.In the present embodiment, participant B and C generate respectively symmetrical code key keyb and
keyc。
Step 202, demand return information is encrypted using symmetrical code key, generates the ciphertext of demand return information.Institute
The demand return information of stating refers to the reply content that participant is carried out according to the discount demand that bill operation receiving party issues, if ginseng
The demand is not received with side, then reply content is refusal；Otherwise, if receiving the demand, reply content is to agree to, and return
It include the discount rate for the bill operation in multiple content.In the present embodiment, participant B will have agreed to information and discount rate information group
It is made into demand return information msgb, and is encrypted using symmetrical code key keyb, the ciphertext dmsgb of demand return information is generated；
Similar, participant C will have agreed to information and discount rate information is organized into demand return information msgc, and use symmetrical code key keyc
It is encrypted, generates the ciphertext dmsgc of demand return information.Using random number as the symmetrical code key of generation in the present embodiment.
Step 203, symmetrical code key is encrypted using receiving party's public key, generates code key ciphertext.In the present embodiment, participate in
Square B carries out encryption to its symmetrical code key keyb using the public key of receiving party A and generates code key ciphertext dkeyb；Participant C is used and is accepted
The public key of square A encrypts its symmetrical code key keyc, generates code key ciphertext dkeyc.
Step 204, it generates demand and replys scrambled record information, and be sent to block platform chain.The demand replys encryption
It records information and includes at least the encrypted cipher-text information of demand return information and the encrypted cipher-text information of symmetrical code key.
Step 105, receiving party A obtains demand from block platform chain and replys scrambled record information, is decrypted and selects to hand over
Easy analogue, i.e. selection participant.The step detailed process is as shown in figure 3, be divided into following steps:
Step 301, receiving party A obtains demand from block platform chain and replys scrambled record information.
Step 302, the symmetrical code key that receiving party A is replied in scrambled record information using the private key decryption demand of oneself is close
Text, the symmetrical code key after obtaining decryption.In the present embodiment, using the dkeyb in the private key decryption participant B return information of A, obtain
Symmetrical code key keyb after taking decryption；Same process, the symmetrical code key keyc after obtaining decryption.
Step 303, the demand return information that receiving party A is replied in scrambled record information using symmetrical code key decryption demand is close
Text, the demand return information after obtaining decryption.In the present embodiment, scrambled record is replied using the private key decryption participant B demand of A
Demand return information ciphertext dmsgb in information, the demand return information msgb after obtaining decryption；Same process obtains solution
Demand return information msgc after close.
Step 304, the demand return information of more each participant of receiving party A, selects optimal counterparty side.It is described most
Good counterparty side refer to it is all agree to receive demand participants in, one best for receiving party.This implementation
In example, the minimum participant B of discount rate is chosen as best counterparty side.
Step 106, receiving party A will be sent to block platform chain after the selection result information encryption for each participant, and
Discounted note business is initiated to counterparty side.The selection result information refers to the best counterparty Fang Xuan that receiving party determines
Select as a result, if select the participant as counterparty side if selection result be it is true, in selection result information include at least ticket
It is believed that breath and Transaction Information, otherwise as counterparty side, then selection result is false to the non-selected participant.It is described to be directed to respectively
The selection result information encryption of participant refers to use to be added from the received symmetrical secret key pair selection result information of each participant
Close processing.The initiation discounted note business refers to that receiving party initiates discounted note business, on the one hand, selection result information is sent
To block platform chain；Another aspect billing information and settlement of transactions are complete by the electronic billing system (ECDS) of clearing house
It discounts and applies at bill operation.The Transaction Information, optionally including Transaction Information has transaction serial number, both parties' information, hands over
The information such as easy time, transaction value, transaction handler.
In the present embodiment, receiving party A selects participant B as counterparty side, on the one hand will have agreed to information, billing information
It is organized into selection result information with Transaction Information, and is sent to block platform chain after being encrypted using keyb；Another aspect ticket
It is believed that breath and settlement of transactions complete bill operation discount application by the electronic billing system (ECDS) of clearing house.It accepts
The square non-selected participant C of A is organized into selection result information as counterparty side, by non-selected information, and is carried out using keyc
Block platform chain is sent to after encryption
Step 107, participant obtains encrypted selection result information, is decrypted using symmetrical code key, if participant is
Counterparty side then starts handling for discounted note business.The handling for discounted note business of beginning refers to counterparty side
Handling for discounting business is carried out using the information obtained from block platform chain and ECDS, and bill operation patch is completed by ECDS
Existing reply and financial settlement.
It in the present embodiment, after participant B obtains selection result information, is decrypted using keyb, transaction, benefit are agreed in confirmation
Handling for discounting business is carried out with the information obtained from block platform chain and ECDS, and bill operation discount is completed by ECDS
Reply and financial settlement.After participant C obtains selection result information, it is decrypted using keyc, confirmation is not agreed to trade,
Then processing terminate.
Claims (9)
- The match method 1. a kind of discounted note based on block chain is traded, which comprises the steps of:The discounted note application information of client is converted to discounted note demand information and is published to block chain by bill operation receiving party On platform；Participant obtains discounted note demand information from block platform chain and forms demand return information；Participant replys demand Information encrypting and transmitting is to block platform chain；Receiving party obtains encrypted demand return information from block platform chain, is decrypted and selects transaction pair in participant Hand side；Receiving party will be for being sent to block platform chain after the selection result information encryption of each participant, and to counterparty side Initiate discounted note business；Participant is decrypted after obtaining encrypted selection result information, and the participant for being selected as counterparty side starts bill patch Existing business is handled.
- The match method 2. discounted note according to claim 1 based on block chain is traded, which is characterized in that the bill Discounting demand information includes discounted note application information and corresponding application serial number.
- The match method 3. discounted note according to claim 1 based on block chain is traded, which is characterized in that the demand Return information includes whether participant participates in discount transaction, and if participates in discounted note given when discount transaction Rate.
- The match method 4. discounted note according to claim 1 based on block chain is traded, which is characterized in that the participation Just by demand return information encrypting and transmitting to the process of block platform chain are as follows:Generate symmetrical code key；Demand return information is encrypted using symmetrical code key, generates demand return information ciphertext；Symmetrical code key is encrypted using receiving party's public key, generates code key ciphertext；Demand return information ciphertext and code key ciphertext are packaged generation demand and reply scrambled record information, and it is flat to be sent to block chain Platform.
- The match method 5. discounted note according to claim 4 based on block chain is traded, which is characterized in that described to accept The process of selection counterparty side of side are as follows:Receiving party obtains demand from block platform chain and replys scrambled record information；Receiving party replys the code key ciphertext in scrambled record information using the private key decryption demand of oneself, symmetrical after obtaining decryption Code key；Receiving party replys the demand return information ciphertext in scrambled record information using symmetrical code key decryption demand, after obtaining decryption Demand return information；The demand return information of more each participant of receiving party, selects optimal counterparty side.
- The match method 6. discounted note according to claim 5 based on block chain is traded, which is characterized in that it is described most Good counterparty side is all to agree to receive one in the participant of demand.
- The match method 7. discounted note according to claim 1 based on block chain is traded, which is characterized in that the selection Result information refers to counterparty side's selection result that receiving party determines, if selecting a certain participant as counterparty side, It is included at least in the selection result information being then sent to it and informs that the counterparty is selected as the information of counterparty side, bill letter Breath and Transaction Information, if a certain participant is not selected for counterparty side, in the selection result information being sent to it Including at least informing that the counterparty is not selected for the information of counterparty side.
- The match method 8. discounted note according to claim 1 based on block chain is traded, which is characterized in that described to be directed to Each participant selection result information encryption refer to using from the received symmetrical secret key pair selection result information of corresponding participant into Row encryption.
- The match method 9. discounted note according to claim 1 based on block chain is traded, which is characterized in that described to accept After Fang Faqi discounted note business, discounted note business is handled by the electronic billing system of clearing house.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810958926.XA CN109377359A (en) | 2018-08-22 | 2018-08-22 | A kind of discounted note transaction match method based on block chain |
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| CN201810958926.XA CN109377359A (en) | 2018-08-22 | 2018-08-22 | A kind of discounted note transaction match method based on block chain |
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| CN110084602A (en) * | 2019-04-30 | 2019-08-02 | 杭州复杂美科技有限公司 | A kind of shielded debt-credit method and system of privacy information, equipment and storage medium |
| CN111402050A (en) * | 2020-03-11 | 2020-07-10 | 北京价值互联科技有限公司 | Center-removing matching method and system based on block chain |
| CN112862477A (en) * | 2021-02-07 | 2021-05-28 | 中国人民大学 | Block chain-based digital commodity atomic transaction method and system |
| TWI749757B (en) * | 2020-09-07 | 2021-12-11 | 國泰世華商業銀行股份有限公司 | Transaction risk estimation system |
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Application publication date: 20190222 |