CN110851530A - Block chain based shared economic credible transaction method - Google Patents
Block chain based shared economic credible transaction method Download PDFInfo
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- CN110851530A CN110851530A CN201911077015.7A CN201911077015A CN110851530A CN 110851530 A CN110851530 A CN 110851530A CN 201911077015 A CN201911077015 A CN 201911077015A CN 110851530 A CN110851530 A CN 110851530A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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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
- G06Q30/00—Commerce
- G06Q30/01—Customer relationship services
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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
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0645—Rental transactions; Leasing transactions
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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
Abstract
The invention discloses a block chain-based shared economic trusted transaction method. A plurality of participating bodies sharing economy establish nodes on a block chain respectively to form an alliance chain; the background system generates a pair of public key and private key and writes the intelligent contract into the block chain; the user signs the random number generated by the sharing equipment by using the private key and sends the random number back to the sharing equipment; and after the shared device passes the verification of the public key, the use authority is opened. The invention adopts the techniques of trust exemption, non-tampering, traceability, intelligent contract automatic performance and multiple signatures of the block chain in the sharing environment to construct a credible, certifiable and traceable sharing economic system, solves the problem of low security of the sharing economic service, and avoids the personal privacy and property of the customer or the merchant from being damaged.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a block chain-based shared economic trusted transaction method.
Background
In recent years, as the economy of China continues to keep increasing at a high speed, shared economy has penetrated into every corner of our daily life, which provides great convenience for people, improves the utilization rate of resources and reduces the waste of resources.
The sharing economy is a new economy model based on strangers and temporary transfer of the use right of the goods. The existing shared economy seriously depends on data of a platform party, so that distrust among a demand party, a supply party and a site provider is caused, and purchasing and financial means lack data support, so that the shared economy is difficult to develop.
At present, the transaction mode of sharing economy is to pay through an internet third-party platform, which requires that the customer information is real and reliable. However, network hackers or other lawbreakers attack the network transaction system, and obtain profits by resale of personal information, etc., the existing transaction system sharing economy involves the possibility that the network attack is difficult to trace and transaction data is subject to tampering, so that privacy and property of individuals are affected, and a safer credible transaction system is urgently needed to replace the existing mode.
Disclosure of Invention
In view of the above, it is desirable to provide a secure and reliable trusted transaction method for a traditional shared economic service, and to achieve the above object, the present invention provides a block chain-based shared economic trusted transaction method. A trusty, right-confirming and traceable sharing economic system is constructed by adopting the techniques of trust avoidance, non-tampering, traceability, intelligent contract automatic performance and multiple signatures of a block chain in a sharing environment, the problem of low security of sharing economic service is solved, and the personal privacy and property of customers or merchants are prevented from being damaged.
The invention solves the problems through the following technical scheme: a block chain based shared economic trusted transaction method, characterized in that the method comprises the following steps:
a, a plurality of participating bodies sharing economy establish a node on a block chain respectively, and a plurality of nodes form a alliance chain;
b, after the user confirms to use the shared service through the terminal, the background system can generate a pair of public key and private key and write the related data of the shared service and the business logic thereof into the block chain in the form of an intelligent contract;
c, after the background system finishes inputting the intelligent contract, initiating an operation request to the sharing equipment according to information;
d, after acquiring contract information of the shared service sent by the background system, the sharing device takes out the public key of the user in the contract, then requests the user to sign a random number produced by the sharing device by using the private key, and sends the random number back to the sharing device;
step e, the sharing device uses the public key to check the signature after receiving the signature sent back by the user, and if the signature is correct, the use authority of the sharing device is opened;
and f, after the user finishes the sharing service, automatically completing the transaction through the intelligent contract.
Preferably, the federation chain is composed of a super node and a plurality of common nodes, the super node has the functions of the common nodes, and also has the functions of implementing member management, authority management and data monitoring in a federation.
Preferably, the shared device obtains contract information of the shared service sent by the background system through a built-in intelligent chip, the intelligent chip stores a block chain verification code and block header information, and the intelligent chip completes the data reading, writing, verification and uploading of the shared device to the block chain.
Preferably, the smart chip comprises an identity module for identity verification and identification of the sharing device, and a wallet module for recording transaction information of the sharing device.
Preferably, a multiple signature mechanism is adopted, the shared device corresponds to a plurality of managers, each manager holds a respective private key, and the use permission of the shared device is opened only when the sum of the weights of the private keys for unlocking reaches a specified preset value.
Preferably, the sharing device is a shared automobile, a shared bicycle or a shared power bank.
The invention has the beneficial effects that: (1) the data has consistency: the invention utilizes the characteristic that the block chain system keeps the consistency of data in the whole ecology, and once the data is written into the block chain, each node can be verified uniformly and cannot be tampered.
(2) The encryption and the security of the data are improved: in the invention, once the data in all the block chains interact with the outside, all the data are encrypted by the public key, and a person without the private key has no authority to carry out the next operation and cannot forge the signature, so that the encryption of the data is improved, and the safety of the shared service is ensured.
(3) The innovative use of multiple signature mechanisms in the shared economy: in the house leasing application scene, the key uses a multiple signature mechanism of the bit currency, and the mechanism can realize the common asset management of multiple parties and also can be used for the third party transaction guarantee, thereby being very suitable for the sharing economy of the fire heat.
Drawings
Fig. 1 is a flowchart of a block chain-based shared economic trusted transaction method according to an embodiment of the present invention;
fig. 2 is a schematic block structure diagram according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1, the present invention provides a block chain based shared economic trusted transaction method, which is characterized in that the method comprises the following steps:
step a, a plurality of participating bodies sharing economy establish a node on a block chain respectively, and a plurality of nodes form a alliance chain. And a plurality of participating main body nodes on the alliance chain are bookkeepers. The block structure on one node is shown in fig. 2, where the data field stores information such as shared service content, user information, payment amount and mode.
To preserve the complete data, the chunk must be hashed. The SHA-256 will encrypt the contents of the block:
to generate a chunk, the hash value of the previous chunk must be known, and then the rest of the required content (index, hash, data and timestamp) is created. The data portion of the block is provided by the user:
the alliance chain is composed of a super node and a plurality of common nodes, wherein the super node has the functions of the common nodes and also has the functions of implementing member management, authority management, data monitoring and the like in the alliance. Thus, in contrast to a fully decentralized federation chain, a federation chain is partially decentralized, or a "chain" of federations is decentralized, but management of the federation chain is centralized.
And b, after the user confirms to use the shared service through the terminal, the background system can generate a pair of public key and private key and write the related data of the shared service and the business logic thereof into the block chain in the form of an intelligent contract.
And c, after the background system finishes inputting the intelligent contract, initiating an operation request to the sharing equipment according to the information. The shared device may be a shared car, a shared bicycle, or a shared power bank.
And d, after the shared equipment obtains contract information of the shared service sent by the background system, taking out a public key of the user in the contract, requesting the user to sign a random number produced by the shared equipment by using the private key, and sending the random number back to the shared equipment. The sharing device obtains contract information of the sharing service sent by the background system through a built-in intelligent chip, the intelligent chip stores block chain verification codes and block head information, and data reading, writing, verification and uploading of the sharing device to the block chain are completed by the intelligent chip. The intelligent chip also comprises an identity module for identity verification and identification of the sharing device and a wallet module for recording transaction information of the sharing device.
And e, the sharing equipment checks the signature by using the public key after receiving the signature sent back by the user, and if the signature is correct, the use authority of the sharing equipment is opened.
And f, after the user finishes the sharing service, automatically completing the transaction through the intelligent contract.
And the block chain summarizes and shares background business data, user data, shared equipment data and credit data of participating main bodies, and provides a trust basis for the operation of the whole sharing economic system. And updating the operation data of the sharing equipment in real time, wherein all the participating main bodies can inquire the operation data of the sharing equipment through a block chain. Therefore, the fast and efficient settlement efficiency can be obtained, the operation data can be monitored in real time, the operation income can be traced, and the safety of the sharing economy is greatly improved.
In another embodiment, the shared device private key verification adopts a multiple signature mechanism, the shared device corresponds to a plurality of managers, each manager holds a respective private key, and the use permission of the shared device is opened only when the sum of the weights of the private keys for unlocking reaches a specified preset value.
The multiple signature mechanism can realize the common management of assets by multiple parties and can also be used for the guarantee of third-party transaction. I.e., M ofN mode, where N refers to the number of administrators holding the private key and M refers to the number of private keys needed to unlock the address. Generally, there are several modes 1of 1,1of 2,1of 3,2of 3, and 3of 3. In general, in the case of multiple applications, where N is 3, for example, in a house rental scenario, the smart lock may be provided with 3 different keys, which are signed by 2/3 and assigned to 3 parties to hold the smart lock respectively. Unlocking can only be achieved if any 2of the 3 signatures are present at the same time. The method comprises the following specific steps:
the house intermediary holds a key and has unlocking authority under certain conditions, such as validity in a specific time period; the tenant holds a key and has unlocking authority under certain conditions, and if the key is valid in a specific time period; the landlord holds a key and has permanent and effective unlocking authority. Namely: the key is inserted into the keyhole all the time, and because the signature is 2/3, any party of the intermediary or the tenant can unlock the lock only by using the key of the party, but the landlord cannot do the lock, and the party needs to find the individual to unlock the lock, so that the rights and interests of the renters can be effectively protected. If the landlord has the requirement of opening the door, the intermediary company can be found to negotiate with any part of the tenant to open the door, so that the landlord can be ensured to maintain the right when necessary under the condition that the knowledge rights of other two parts are ensured, although the intermediary can open the door by using the held key, the intermediary can not unlock the door at will to harm the benefits of the tenant because good credit and public praise are required to be maintained, and the probability is controlled more than that of the landlord even if the landlord has individual extreme conditions.
In the arrangement scheme, a landlord can pull out a key at any time (namely, the landlord notifies the intelligent lock to disable the key), and at the moment, the tenant and the intermediary can not unlock the lock on one side, and the tenant and the intermediary need to find one side to negotiate to solve the problem. However, the landlord generally has no reason to do so unless the benefit is compromised. The design of the right-maintaining mode only capable of pulling out the key also avoids the damage caused by the over-violent right-maintaining. After the landlord pulls out the key, if the tenant and the intermediary still want to avoid the unilateral unlocking, the landlord key can be set with a weight of more than 1 in the smart lock program, so that the sum of the weights of the tenant and the intermediary is less than 2, the unlocking cannot be performed, and the key must be inserted again after the landlord agrees. Namely: the key pull-out by the landlord can force the tenants and the intermediaries to actively meet the right-maintaining requirements of the landlord.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (6)
1. A block chain based shared economic trusted transaction method, characterized in that the method comprises the following steps:
a, a plurality of participating bodies sharing economy establish a node on a block chain respectively, and a plurality of nodes form a alliance chain;
b, after the user confirms to use the shared service through the terminal, the background system can generate a pair of public key and private key and write the related data of the shared service and the business logic thereof into the block chain in the form of an intelligent contract;
c, after the background system finishes inputting the intelligent contract, initiating an operation request to the sharing equipment according to information;
d, after acquiring contract information of the shared service sent by the background system, the sharing device takes out the public key of the user in the contract, then requests the user to sign a random number produced by the sharing device by using the private key, and sends the random number back to the sharing device;
step e, the sharing device uses the public key to check the signature after receiving the signature sent back by the user, and if the signature is correct, the use authority of the sharing device is opened;
and f, after the user finishes the sharing service, automatically completing the transaction through the intelligent contract.
2. The block chain-based shared economic trusted transaction method according to claim 1, wherein the federation chain is composed of a super node and a plurality of common nodes, the super node has functions of implementing member management, authority management and data monitoring in a federation in addition to functions of the common nodes.
3. The block chain-based shared economic trusted transaction method according to claim 1, wherein the shared device obtains contract information of the shared service sent from the background system through a built-in smart chip, the smart chip stores a block chain verification code and block header information, and data read-write, verification and related work uploaded to the block chain of the shared device are completed by the smart chip.
4. The blockchain-based shared economic trusted transaction method according to claim 3, wherein the smart chip comprises an identity module for shared device authentication and identification, and a wallet module for recording transaction information of the shared device.
5. The block chain-based shared economic trusted transaction method according to claim 1, wherein a multiple signature mechanism is adopted, the shared device corresponds to a plurality of managers, each manager holds a respective private key, and the use permission of the shared device is opened only when the sum of the weights of the private keys for unlocking reaches a specified preset value.
6. The blockchain-based shared economic trusted transaction method of claim 1, wherein the shared device is a shared automobile, a shared bicycle, or a shared power bank.
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Application publication date: 20200228 |