CN112966237A - Block chain-based digital asset processing method - Google Patents
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Abstract
The invention relates to digital asset processing, in particular to a digital asset processing method based on a block chain, which comprises the steps of receiving an uplink request of a user, carrying out dimension reduction processing on the digital asset sent by the user, calling a private key belonging to the user to encrypt the dimension reduction digital asset according to the uplink request, generating a signature, obtaining an uploading timestamp and an expiration timestamp of the dimension reduction digital asset, generating a transaction label with a deadline attribute, uploading the transaction label and the dimension reduction digital asset to the block chain, receiving a transaction request of the user, calling the dimension reduction digital asset to be transacted and a corresponding signature according to the transaction request, verifying the signature, verifying identity information of a transaction providing terminal according to the transaction request, and verifying a signature verification result and an identity verification result according to the signature; the technical scheme provided by the invention can effectively overcome the defects that in the prior art, whether the digital asset is tampered by an owner or not is difficult to verify, and the storage condition and the transaction state of the digital asset cannot be completely recorded.
Description
Technical Field
The invention relates to digital asset processing, in particular to a block chain-based digital asset processing method.
Background
The Block Chain technology (Block Chain) refers to a technical scheme for collectively maintaining a reliable database in a decentralized mode, the technical scheme mainly relates blocks (blocks) through a cryptography method, each Block contains all data information of a system within a certain time, and a digital signature is generated to verify the validity of the information, and meanwhile, the blocks are linked to the next data Block to form a main Chain. Wherein a block is a record in a block chain that contains and confirms a transaction to be processed.
Digital assets (Digital assets) refer to non-monetary assets owned or controlled by a business or person in the form of electronic data, held in everyday activities, ready for sale or in the process of production. With the development of communication technologies, various communication technologies are gradually permeating into digital asset processing. The blockchain has the advantages of decentralization, openness, transparency, incapability of tampering and the like, is applied to various occasions of data processing, and can realize different service requirements in blockchain platforms with different blockchain nodes.
With the continuous development of the blockchain technology, the blockchain has penetrated into the fields such as banks, enterprises, finance and the like, and because the digital asset information volume of each industry is large, the digital asset information structure distribution is scattered, so that the digital asset stored for a certain time on the chain is difficult to verify whether the digital asset is tampered by an owner, and the storage condition and the transaction state of the digital asset on the chain cannot be completely recorded.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides a digital asset processing method based on a block chain, which can effectively overcome the defects that whether the digital asset is tampered by an owner or not is difficult to verify and the storage condition and the transaction state of the digital asset cannot be completely recorded in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a block chain-based digital asset processing method comprises the following steps:
s1, receiving the uplink request of the user, and performing dimensionality reduction processing on the digital assets sent by the user;
s2, calling a private key belonging to a user to encrypt the dimensionality reduction digital asset according to the uplink request to generate a signature;
s3, acquiring the uploading timestamp and the expiration timestamp of the dimensionality reduction digital asset, generating a transaction label with a deadline attribute, and uploading the transaction label and the dimensionality reduction digital asset to a block chain;
s4, receiving a transaction request of a user, calling the dimensionality reduction digital asset to be transacted and a corresponding signature according to the transaction request, and verifying the signature;
and S5, verifying the identity information of the transaction submitting terminal according to the transaction request, and sending the dimensionality reduction digital asset to be transacted to the transaction submitting terminal according to the signature verification result and the identity verification result.
Preferably, in S1, the performing the dimension reduction process on the digital asset sent by the user includes:
and compressing the received digital assets to generate a digital asset data packet, or performing hash operation on the received digital assets to generate hash values corresponding to the digital assets.
Preferably, in S2, according to the uplink request, invoking a private key to which the user belongs to encrypt the dimensionality reduction digital asset, and generating a signature, including:
verifying the service verification code in the uplink request, matching the service verification code, and calling a private key to which a user corresponding to the service verification code belongs to encrypt the dimensionality reduction digital asset to generate a signature if the matching is successful; otherwise, the encryption of the dimensionality reduction digital asset is terminated.
Preferably, the uploading of the dimensionality reduction digital assets together with the block chain in the step S3 includes:
and inquiring the expiration time modification instruction at regular time, modifying the expiration time stamp of the dimensionality reduction digital asset according to the expiration time modification instruction, and simultaneously storing the modified expiration time stamp to the block chain.
Preferably, the intelligent contracts on the blockchain set the priority of each dimension-reduced digital asset according to the expiration time saved in the expiration time stamp.
Preferably, the intelligent contract on the blockchain performs due deletion operation on each dimension-reduced digital asset according to the due time stored in the due time stamp, and stores the due deletion operation information to the corresponding storage location of the dimension-reduced digital asset on the blockchain.
Preferably, the step S4 of retrieving the dimensionality reduction digital asset to be traded and the corresponding signature according to the trading request, and verifying the signature includes:
and decrypting and verifying the signature by using a public key disclosed on the block chain by a user to which the dimensionality-reduced digital asset to be traded belongs.
Preferably, the step of verifying the identity information of the transaction submitting terminal according to the transaction request in S5 includes:
the identity information of the transaction submitting terminal is verified, and if the identity information passes the verification, the identity information of the transaction submitting terminal is stored to a corresponding storage position of the dimensionality reduction digital asset to be transacted on the block chain; otherwise, storing the identity information of the transaction submitting terminal into a blacklist.
Preferably, in S5, the sending the dimensionality reduction digital asset to be traded to the trading terminal according to the signature verification result and the identity verification result includes:
after the signature of the dimensionality reduction digital asset to be traded is decrypted and verified by the public key, whether the dimensionality reduction digital asset to be traded is consistent with data in the chain linking process is checked, if the data are consistent, and the trading proposing terminal passes identity verification, the dimensionality reduction digital asset to be traded is sent to the trading proposing terminal; otherwise, execution of the user transaction request is terminated.
Preferably, after the dimension-reduced digital asset to be traded is sent to the trading terminal, a trading timestamp is added to a trading tag of the dimension-reduced digital asset to be traded.
(III) advantageous effects
Compared with the prior art, the digital asset processing method based on the block chain can effectively verify whether the digital asset is tampered by an owner or not, and carry out identity verification on the transaction terminal, so that the smooth transaction of the digital asset is ensured from the perspective of protecting both parties of the transaction, and in addition, the storage condition and the transaction state of the digital asset can be completely recorded on the chain, and the whole-process supervision of the digital asset on the chain is formed.
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 some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow diagram of the digital asset processing of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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.
A method for processing digital assets based on block chains, as shown in fig. 1, receives an uplink request from a user, and performs dimension reduction processing on digital assets sent by the user.
The method for reducing the dimension of the digital assets sent by the user comprises the following steps:
and compressing the received digital assets to generate a digital asset data packet, or performing hash operation on the received digital assets to generate hash values corresponding to the digital assets.
According to the uplink request, calling a private key to which the user belongs to encrypt the dimensionality reduction digital asset to generate a signature, and specifically comprising the following steps:
verifying the service verification code in the uplink request, matching the service verification code, and calling a private key to which a user corresponding to the service verification code belongs to encrypt the dimensionality reduction digital asset to generate a signature if the matching is successful; otherwise, the encryption of the dimensionality reduction digital asset is terminated.
And acquiring an uploading timestamp and an expiration timestamp of the dimension-reduced digital asset, generating a transaction tag with a deadline attribute, and uploading the transaction tag and the dimension-reduced digital asset to a block chain.
Wherein, after uploading to the blockchain together with the dimensionality reduction digital assets, the method comprises the following steps:
and inquiring the expiration time modification instruction at regular time, modifying the expiration time stamp of the dimensionality reduction digital asset according to the expiration time modification instruction, and simultaneously storing the modified expiration time stamp to the block chain.
And the intelligent contract on the block chain sets the priority of each dimensionality reduction digital asset according to the expiration time stored in the expiration time stamp, so that the expired dimensionality reduction digital assets can be deleted due to convenience.
And the intelligent contract on the block chain performs due deletion operation on each dimensionality reduction digital asset according to the due time stored in the due time stamp, and stores the due deletion operation information to the corresponding storage position of the dimensionality reduction digital asset on the block chain.
And receiving a transaction request of a user, calling the dimensionality reduction digital asset to be transacted and a corresponding signature according to the transaction request, and verifying the signature.
The method for calling the dimensionality reduction digital assets to be traded and the corresponding signatures according to the trading requests and verifying the signatures comprises the following steps:
and decrypting and verifying the signature by using a public key disclosed on the block chain by a user to which the dimensionality-reduced digital asset to be traded belongs.
In the technical scheme, the private key to which the user belongs is adopted to encrypt the dimensionality reduction digital asset, and the public key disclosed by the user on the block chain is used for decrypting and verifying the signature, so that the affiliated party of the dimensionality reduction digital asset can be accurately identified.
And verifying the identity information of the transaction submitting terminal according to the transaction request, and sending the dimensionality reduction digital asset to be transacted to the transaction submitting terminal according to the signature verification result and the identity verification result.
Wherein, verifying the identity information of the transaction submitting terminal according to the transaction request comprises:
the identity information of the transaction submitting terminal is verified, and if the identity information passes the verification, the identity information of the transaction submitting terminal is stored to a corresponding storage position of the dimensionality reduction digital asset to be transacted on the block chain; otherwise, storing the identity information of the transaction submitting terminal into a blacklist.
Wherein, according to signature verification result, identity verification result, will wait to deal with the dimensionality reduction digital asset and send to the terminal is proposed in the trade, include:
after the signature of the dimensionality reduction digital asset to be traded is decrypted and verified by the public key, whether the dimensionality reduction digital asset to be traded is consistent with data in the chain linking process is checked, if the data are consistent, and the trading proposing terminal passes identity verification, the dimensionality reduction digital asset to be traded is sent to the trading proposing terminal; otherwise, execution of the user transaction request is terminated.
According to the technical scheme, whether the digital assets are tampered by the owner or not can be effectively verified, the identity of the transaction providing terminal is verified, and from the perspective of protecting both transaction parties, smooth proceeding of digital asset transaction is guaranteed.
And after the dimension-reduced digital asset to be traded is sent to the trading terminal, adding a trading timestamp on a trading tag of the dimension-reduced digital asset to be traded. The transaction tag has a deadline attribute which comprises an uploading time stamp, an expiration time stamp and a transaction time stamp, so that the storage condition and the transaction state of the digital asset can be completely recorded on the chain, and the whole-process supervision of the digital asset on the chain is formed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A block chain-based digital asset processing method is characterized in that: the method comprises the following steps:
s1, receiving the uplink request of the user, and performing dimensionality reduction processing on the digital assets sent by the user;
s2, calling a private key belonging to a user to encrypt the dimensionality reduction digital asset according to the uplink request to generate a signature;
s3, acquiring the uploading timestamp and the expiration timestamp of the dimensionality reduction digital asset, generating a transaction label with a deadline attribute, and uploading the transaction label and the dimensionality reduction digital asset to a block chain;
s4, receiving a transaction request of a user, calling the dimensionality reduction digital asset to be transacted and a corresponding signature according to the transaction request, and verifying the signature;
and S5, verifying the identity information of the transaction submitting terminal according to the transaction request, and sending the dimensionality reduction digital asset to be transacted to the transaction submitting terminal according to the signature verification result and the identity verification result.
2. The blockchain-based digital asset processing method according to claim 1, wherein: in S1, performing dimensionality reduction processing on the digital asset sent by the user includes:
and compressing the received digital assets to generate a digital asset data packet, or performing hash operation on the received digital assets to generate hash values corresponding to the digital assets.
3. The blockchain-based digital asset processing method according to claim 2, wherein: in S2, according to the uplink request, invoking a private key to which the user belongs to encrypt the dimensionality reduction digital asset, and generating a signature, including:
verifying the service verification code in the uplink request, matching the service verification code, and calling a private key to which a user corresponding to the service verification code belongs to encrypt the dimensionality reduction digital asset to generate a signature if the matching is successful; otherwise, the encryption of the dimensionality reduction digital asset is terminated.
4. The blockchain-based digital asset processing method according to claim 3, wherein: after uploading the dimension-reduced digital assets to the blockchain in the step S3, the method includes:
and inquiring the expiration time modification instruction at regular time, modifying the expiration time stamp of the dimensionality reduction digital asset according to the expiration time modification instruction, and simultaneously storing the modified expiration time stamp to the block chain.
5. The blockchain-based digital asset processing method according to claim 4, wherein: and the intelligent contracts on the blockchains set the priority of each dimensionality reduction digital asset according to the expiration time stored in the expiration time stamps.
6. The blockchain-based digital asset processing method according to claim 4, wherein: and the intelligent contract on the block chain carries out due deletion operation on each dimensionality reduction digital asset according to the due time stored in the due time stamp, and stores the due deletion operation information to the corresponding storage position of the dimensionality reduction digital asset on the block chain.
7. The blockchain-based digital asset processing method according to claim 4, wherein: in S4, the method for retrieving the dimensionality reduction digital asset to be traded and the corresponding signature according to the trading request and verifying the signature includes:
and decrypting and verifying the signature by using a public key disclosed on the block chain by a user to which the dimensionality-reduced digital asset to be traded belongs.
8. The blockchain-based digital asset processing method according to claim 7, wherein: in S5, verifying the identity information of the transaction submitting terminal according to the transaction request includes:
the identity information of the transaction submitting terminal is verified, and if the identity information passes the verification, the identity information of the transaction submitting terminal is stored to a corresponding storage position of the dimensionality reduction digital asset to be transacted on the block chain; otherwise, storing the identity information of the transaction submitting terminal into a blacklist.
9. The blockchain-based digital asset processing method according to claim 8, wherein: in S5, according to the signature verification result and the identity verification result, sending the dimensionality reduction digital asset to be traded to the trading terminal, including:
after the signature of the dimensionality reduction digital asset to be traded is decrypted and verified by the public key, whether the dimensionality reduction digital asset to be traded is consistent with data in the chain linking process is checked, if the data are consistent, and the trading proposing terminal passes identity verification, the dimensionality reduction digital asset to be traded is sent to the trading proposing terminal; otherwise, execution of the user transaction request is terminated.
10. The blockchain-based digital asset processing method according to claim 9, wherein: and after the dimension-reduced digital asset to be traded is sent to the trading terminal, adding a trading timestamp on a trading tag of the dimension-reduced digital asset to be traded.
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| CN113487313A (en) * | 2021-06-22 | 2021-10-08 | 安徽中科晶格技术有限公司 | Delivery system and method for physical assets |
| CN116071164A (en) * | 2023-04-06 | 2023-05-05 | 江苏金寓信息科技有限公司 | Digital asset tracing method based on blockchain management |
| CN116934488A (en) * | 2023-09-18 | 2023-10-24 | 四川德力政通科技有限公司 | Real estate online on-road transaction management system based on satellite positioning |
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| CN116934488A (en) * | 2023-09-18 | 2023-10-24 | 四川德力政通科技有限公司 | Real estate online on-road transaction management system based on satellite positioning |
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