CN111861485A - Block chain-based digital currency control method and equipment - Google Patents
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Abstract
The invention provides a block chain-based digital currency control method and system, wherein a transaction priority instruction is stored in an intelligent contract in advance, when a digital currency transaction is executed by a transaction block chain, the digital currency transaction to be executed is firstly acquired, and a transaction sequence is determined according to the acquired transaction priority instruction, so that the balance of transaction calculation is realized, and a transaction node which needs to be quickly transacted firstly carries out transaction. When each transaction node carries out currency transaction, images of transaction executors can be collected, data of the transaction images of all the nodes are packaged into a block and constructed into a control block chain, the control block chain can store the transaction images of all the nodes in a block chain mode, the transaction images stored in the control block chain cannot be tampered, and are stored in all the transaction nodes in a distributed mode for being called at any time, the transaction images are encrypted at the same time, and the transaction images can be prevented from being leaked.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a digital currency control method and device based on a block chain.
Background
At present, mobile Payment based on Electronic account is very popular, and so-called Digital Currency (DCEP) is usually issued by a central bank or authorized by the central bank, and legal currency represented by an encrypted digital string representing a specific amount of money is supported by cryptography. In contrast to traditional mobile payments, data currency is itself legal currency and may no longer need to be associated with an electronic account, so digital currency has been more than just a payment instrument. In current digital money transactions, there is often a delay in cash transfer transactions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a block chain-based digital currency control method and device, which can effectively balance transaction priorities by a consensus mechanism.
A blockchain-based digital currency management and control method, the method comprising:
acquiring a digital currency transaction to be executed, and generating transaction priority instructions associated with transaction contents based on the transaction contents of the digital currency transaction, wherein the transaction priority instructions indicate transaction execution sequences of various participants in the digital currency; the transaction priority instruction is stored in an intelligent contract in a transaction block chain, each transaction node calls the transaction priority instruction from the intelligent contract, and each transaction node calls the transaction priority instruction from the intelligent contract; the transaction nodes execute transactions in sequence according to the transaction priority instructions;
The transaction node collects transaction images of transaction executors, the attribution server of the transaction node packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are encrypted and recorded into a block body of the current block.
Further, the transaction nodes encrypt the transaction image by using a private key, a public key corresponding to the private key is stored in an intelligent contract of the control block chain, the transaction image is attached with a digital signature, and the public key is stored in each transaction node in a distributed manner through the control block chain.
Further, the transaction priorities are ordered according to transaction times of the digital currency transactions; each transaction node executes the digital currency transactions according to the transaction priority sequence;
or;
the transaction priorities are sorted according to transaction amount of the digital currency transactions; each transaction node executes the digital currency transactions in transaction priority order.
Further, the transaction priority is set according to a preset mark, and the mark comprises one or more marks; digital currency transactions labeled with the same priority have the same rank.
A storable computing device comprising: a processor; a memory for storing processor-executable instructions;
wherein the processor performs the method of any of the preceding claims 1-4.
A blockchain-based digital currency management apparatus, the apparatus comprising:
the acquisition module acquires digital currency transactions to be executed;
a generation module that generates transaction priority instructions associated with transaction content of the digital currency transaction based on the transaction content;
the execution module executes the transaction execution sequence of each participant in the digital currency according to the instruction of the transaction priority instruction;
a calling module: the transaction priority instruction is stored in an intelligent contract in a transaction block chain, and each transaction node calls the transaction priority instruction from the intelligent contract;
a management and control module: the transaction nodes comprise a control module, the control module collects transaction images of transaction executors, a home server of the transaction nodes packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are recorded into a block body of the current block after being encrypted.
Further, the transaction nodes encrypt the transaction image by using a private key, a public key corresponding to the private key is stored in an intelligent contract of the control block chain, the transaction image is attached with a digital signature, and the public key is stored in each transaction node in a distributed manner through the control block chain.
Further, the generating unit includes: ordering the transaction priorities based on transaction times of digital currency transactions; each transaction node executes the digital currency transactions in transaction priority order.
Or;
the generation unit includes: ordering the transaction priorities based on transaction amount size of a kind of digital currency control based on a blockchain; each transaction node executes the digital currency transactions in transaction priority order.
Further, the generating unit includes: the transaction priority is set according to a preset mark, and the mark comprises one or more marks; digital currency transactions labeled with the same priority have the same rank.
The invention has the beneficial effects that:
the invention provides a block chain-based digital currency control method and equipment, wherein a transaction priority instruction is stored in an intelligent contract in advance, when a digital currency transaction is executed in a transaction block chain, the digital currency transaction to be executed is firstly acquired, for example, when the digital currency transaction is carried out in a certain node, the transaction priority instruction of the storage evidence is acquired from the intelligent contract connected with the node, and the transaction sequence is determined according to the acquired transaction priority instruction, so that the balance of transaction calculation force is realized, and the transaction node which needs to be rapidly transacted firstly carries out the transaction. When each transaction node carries out currency transaction, images of transaction executors can be collected, data of the transaction images of all the nodes are packaged into a block and constructed into a control block chain, the control block chain can store the transaction images of all the nodes in a block chain mode, the transaction images stored in the control block chain cannot be tampered, and are stored in all the transaction nodes in a distributed mode for being called at any time, the transaction images are encrypted at the same time, and the transaction images can be prevented from being leaked.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic flowchart of a block chain-based digital currency management and control method according to an embodiment of the present disclosure.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The blockchain system refers to a system for performing a blockchain between nodes, and the blockchain system may include a plurality of nodes, and the plurality of nodes may refer to respective clients in the blockchain system. Each node may receive input information during normal operation and maintain shared data within the blockchain system based on the received input information. In order to ensure the information intercommunication in the blockchain system, information connection can exist between each node in the blockchain system, and the nodes can transmit information through the information connection. For example, when any node in the blockchain system receives input information, other nodes in the blockchain system can acquire the input information according to a consensus algorithm, and store the input information as data in shared data, so that the data stored on all nodes in the blockchain system are consistent.
Each node in the blockchain system has a corresponding node identifier, and each node in the blockchain system can store node identifiers of other nodes in the blockchain system, so that the generated block can be broadcast to other nodes in the blockchain system according to the node identifiers of other nodes. Each node may maintain a node identifier list as shown in the following table, and store the node name and the node identifier in the node identifier list correspondingly. The node identifier may be an IP (Internet Protocol) address and any other information that can be used to identify the node, and table 1 only illustrates the IP address as an example.
| Node name | Node identification |
| Node 1 | 117.114.151.174 |
| Node 2 | 117.116.189.145 |
| … | … |
| Node N | 119.123.789.258 |
Each node in the blockchain system stores one identical blockchain. The block chain is composed of a plurality of blocks, the starting block comprises a block head and a block main body, the block head stores an input information characteristic value, a version number, a timestamp and a difficulty value, and the block main body stores input information; the next block of the starting block takes the starting block as a parent block, the next block also comprises a block head and a block main body, the block head stores the input information characteristic value of the current block, the block head characteristic value of the parent block, the version number, the timestamp and the difficulty value, and the like, so that the block data stored in each block in the block chain is associated with the block data stored in the parent block, and the safety of the input information in the block is ensured.
In some blockchain networks, cryptography is implemented to maintain privacy of transactions. For example, two nodes may encrypt transaction data if they want to maintain transaction privacy so that other nodes in the blockchain network cannot see the details of the transaction. Examples of encryption processes include, but are not limited to, symmetric encryption and asymmetric encryption. Symmetric encryption refers to an encryption process that uses a single key to both encrypt (generate ciphertext from plaintext) and decrypt (generate plaintext from ciphertext). In symmetric encryption, the same key may be used for multiple nodes, so each node may encrypt/decrypt transaction data.
Asymmetric encryption uses key pairs, each key pair comprising a private key and a public key, the private key being known only to the respective node, and the public key being known to any or all other nodes in the blockchain network. A node may encrypt data using a public key of another node, and the encrypted data may be decrypted using a private key of the other node. For example, participant a may encrypt data using participant B's public key and send the encrypted data to participant B. Participant B can use its private key to decrypt the encrypted data (ciphertext) and extract the original data (plaintext). Messages encrypted using a node's public key can only be decrypted using the node's private key.
Asymmetric encryption is used to provide a digital signature that enables a participant in a transaction to confirm the other participants in the transaction and the validity of the transaction. For example, a node may digitally sign a message, and another node may confirm that the message was sent by the node based on the digital signature of participant a. Digital signatures may also be used to ensure that messages are not tampered with during transmission. For example, participant a will send a message to participant B. Participant a generates a hash value of the message and then encrypts the hash value using its private key to provide a digital signature as an encrypted hash value. Participant a appends the digital signature to the message and sends the message with the digital signature to participant B. Participant B decrypts the digital signature using participant a's public key and extracts the hash value. Participant B hashes the message and compares the hash values. If the hash values are the same, participant B can confirm that the message did indeed come from participant A and has not been tampered with.
The asymmetric cryptosystem has the characteristics that: the algorithm is complex in strength and security, depends on the algorithm and the secret key, but the encryption and decryption speed is not as fast as the symmetric encryption and decryption speed due to the complex algorithm. The symmetric cryptosystem has only one kind of key and is not public, and if the key is required to be decrypted, the opposite party can know the key. Therefore, the security of the key is ensured, and the asymmetric key body is provided with two keys, wherein one of the two keys is public, so that the key of the other party does not need to be transmitted like a symmetric cipher. Thus, the security is much greater.
In performing blockchain transactions, the smart contract validates multiple transaction agreements.
The embodiments of the present application will be described below with reference to the drawings.
In some embodiments, the present invention provides a block chain-based digital currency management and control method, as shown in fig. 1, the method including: acquiring a digital currency transaction to be executed, and generating transaction priority instructions associated with transaction contents based on the transaction contents of the digital currency transaction, wherein the transaction priority instructions indicate transaction execution sequences of various participants in the digital currency; the transaction priority instruction is stored in an intelligent contract in a transaction block chain, each transaction node calls the transaction priority instruction from the intelligent contract, and each transaction node calls the transaction priority instruction from the intelligent contract; the transaction nodes execute transactions in sequence according to the transaction priority instructions; the transaction node collects transaction images of transaction executors, the attribution server of the transaction node packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are encrypted and recorded into a block body of the current block.
Specifically, the transaction priority instruction is stored in the intelligent contract in advance, when the transaction blockchain executes digital currency transaction, the digital currency transaction to be executed is firstly acquired, for example, when the digital currency transaction is executed in a certain node, the intelligent contract connected with the node calls the transaction priority instruction for storage evidence, and the transaction sequence is determined according to the called transaction priority instruction, so that the balance of transaction calculation power is realized, and the transaction node which needs to perform quick transaction firstly performs transaction. When each transaction node carries out currency transaction, images of transaction executors can be collected, data of the transaction images of all the nodes are packaged into a block and constructed into a control block chain, the control block chain can store the transaction images of all the nodes in a block chain mode, the transaction images stored in the control block chain cannot be tampered, and are stored in all the transaction nodes in a distributed mode for being called at any time, the transaction images are encrypted at the same time, and the transaction images can be prevented from being leaked.
Preferably, the transaction nodes encrypt the transaction image by using a private key, a public key corresponding to the private key is stored in an intelligent contract of the control block chain, the transaction image is attached with a digital signature, and the public key is stored in each transaction node in a distributed manner through the control block chain. The transaction images collected by the transaction nodes can be prevented from being leaked through encryption of the private key, other nodes can decrypt the encrypted transaction images through the public key, and the digital signature can be used for verifying the authenticity of the public key.
The transaction priorities are ordered according to transaction times of the digital currency transactions; each transaction node executes the digital currency transactions in transaction priority order.
In another embodiment, the transaction priorities are ordered according to transaction amount size of the digital currency transactions; each transaction node executes the digital currency transactions in transaction priority order.
In one embodiment, the transaction priority is set according to a pre-set flag, the flag comprising one or more; digital currency transactions marked with the same priority have the same ordering and may be pre-marked, either by human marking, to pre-set those transactions to be prioritized.
The present invention also provides a storable computing device comprising: a processor; a memory for storing processor-executable instructions;
wherein the processor performs the method of any of the preceding claims 1-4.
The invention also provides a block chain-based digital currency management and control device, which comprises:
the acquisition module acquires digital currency transactions to be executed;
a generation module that generates transaction priority instructions associated with transaction content of the digital currency transaction based on the transaction content;
The execution module executes the transaction execution sequence of each participant in the digital currency according to the instruction of the transaction priority instruction;
a calling module: the transaction priority instruction is stored in an intelligent contract in a transaction block chain, and each transaction node calls the transaction priority instruction from the intelligent contract;
a management and control module: the transaction nodes comprise a control module, the control module collects transaction images of transaction executors, a home server of the transaction nodes packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are recorded into a block body of the current block after being encrypted.
Similarly, the transaction priority order is stored in the intelligent contract in advance, when a certain transaction node executes digital currency transaction, the digital currency transaction to be executed is firstly acquired, then the transaction priority order for storing the evidence is called in the intelligent contract connected with the node, and the transaction sequence is determined according to the called transaction priority order, so that the balance of transaction calculation is realized, and the transaction node needing quick transaction can firstly execute transaction.
Further, the transaction nodes encrypt the transaction image by using a private key, a public key corresponding to the private key is stored in an intelligent contract of the control block chain, the transaction image is attached with a digital signature, and the public key is stored in each transaction node in a distributed manner through the control block chain.
The generation unit includes: ordering the transaction priorities based on transaction times of digital currency transactions;
each transaction node executes the digital currency transactions in transaction priority order.
Further, the generating unit includes: sorting the transaction priorities based on transaction amount sizes of digital currency transactions;
each transaction node executes the digital currency transactions in transaction priority order.
Further, the generating unit includes: the transaction priority is set according to a preset mark, and the mark comprises one or more marks; digital currency transactions labeled with the same priority have the same rank.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. A digital currency control method based on a block chain is characterized in that: the method comprises the following steps:
acquiring a digital currency transaction to be executed, and generating transaction priority instructions associated with transaction contents based on the transaction contents of the digital currency transaction, wherein the transaction priority instructions indicate transaction execution sequences of various participants in the digital currency; the transaction priority instruction is stored in an intelligent contract in a transaction block chain, and each transaction node calls the transaction priority instruction from the intelligent contract; the transaction nodes execute transactions in sequence according to the transaction priority instructions;
the transaction node collects transaction images of transaction executors, the attribution server of the transaction node packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are encrypted and recorded into a block body of the current block.
2. The method for block chain-based digital currency management and control according to claim 1, wherein: the transaction nodes adopt private keys to encrypt transaction images, public keys corresponding to the private keys are stored in an intelligent contract of the control block chain, digital signatures are attached to the transaction images, and the public keys are stored in the transaction nodes in a distributed mode through the control block chain.
3. The method for block chain-based digital currency management and control according to claim 1, wherein: the transaction priorities are ordered according to transaction times of the digital currency transactions; each transaction node executes the digital currency transactions according to the transaction priority sequence;
or;
the transaction priorities are sorted according to transaction amount of the digital currency transactions; each transaction node executes the digital currency transactions in transaction priority order.
4. The method for managing and controlling digital currency based on the blockchain according to any one of claims 1 to 3, wherein the method comprises the following steps: the transaction priority is set according to a preset mark, and the mark comprises one or more marks; digital currency transactions labeled with the same priority have the same rank.
5. A storable computing device characterized by: comprising a processor and a memory for storing processor-executable instructions;
wherein the processor performs the method of any of the preceding claims 1-4.
6. The utility model provides a digit currency management and control device based on block chain which characterized in that: the device comprises:
the acquisition module acquires digital currency transactions to be executed;
a generation module that generates transaction priority instructions associated with transaction content of the digital currency transaction based on the transaction content;
The execution module executes the transaction execution sequence of each participant in the digital currency according to the instruction of the transaction priority instruction;
a calling module: the transaction priority instruction is stored in an intelligent contract in a transaction block chain, and each transaction node calls the transaction priority instruction from the intelligent contract;
a management and control module: the transaction nodes comprise a control module, the control module collects transaction images of transaction executors, a home server of the transaction nodes packs the transaction images of all transaction nodes into a block, the blocks generated in sequence are mutually constructed into a control block chain, the collection time of the transaction images, the Hash of transaction image data and the Hash of the last block are used as characteristic values of a block head of the current block, and the transaction images are recorded into a block body of the current block after being encrypted.
7. The device according to claim 6, wherein the device comprises:
the transaction nodes adopt private keys to encrypt transaction images, public keys corresponding to the private keys are stored in an intelligent contract of the control block chain, digital signatures are attached to the transaction images, and the public keys are stored in the transaction nodes in a distributed mode through the control block chain.
8. The device according to claim 7, wherein the device further comprises:
the generation unit includes: ordering the transaction priorities based on transaction times of digital currency transactions; each transaction node executes the digital currency transactions according to the transaction priority sequence;
or;
the generation unit includes: ordering the transaction priorities based on transaction amount size of a kind of digital currency control based on a blockchain; each transaction node executes the digital currency transactions in transaction priority order.
9. The device according to claim 8, wherein the device further comprises:
the generation unit includes: the transaction priority is set according to a preset mark, and the mark comprises one or more marks; digital currency transactions labeled with the same priority have the same rank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010480171.4A CN111861485A (en) | 2020-05-30 | 2020-05-30 | Block chain-based digital currency control method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010480171.4A CN111861485A (en) | 2020-05-30 | 2020-05-30 | Block chain-based digital currency control method and equipment |
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| CN111861485A true CN111861485A (en) | 2020-10-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214781A (en) * | 2020-11-11 | 2021-01-12 | 广东新禾道信息科技有限公司 | Remote sensing image big data processing method and system based on block chain |
| CN112491983A (en) * | 2020-11-13 | 2021-03-12 | 南方科技大学 | Intelligent contract scheduling method, device, equipment and storage medium based on block chain |
-
2020
- 2020-05-30 CN CN202010480171.4A patent/CN111861485A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214781A (en) * | 2020-11-11 | 2021-01-12 | 广东新禾道信息科技有限公司 | Remote sensing image big data processing method and system based on block chain |
| CN112214781B (en) * | 2020-11-11 | 2021-06-11 | 广东新禾道信息科技有限公司 | Remote sensing image big data processing method and system based on block chain |
| CN112491983A (en) * | 2020-11-13 | 2021-03-12 | 南方科技大学 | Intelligent contract scheduling method, device, equipment and storage medium based on block chain |
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