CN113411383B - Commodity information query method and system based on block chain and storage medium - Google Patents

Commodity information query method and system based on block chain and storage medium Download PDF

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CN113411383B
CN113411383B CN202110650692.4A CN202110650692A CN113411383B CN 113411383 B CN113411383 B CN 113411383B CN 202110650692 A CN202110650692 A CN 202110650692A CN 113411383 B CN113411383 B CN 113411383B
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data
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block chain
query
contract
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CN113411383A (en
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张智立
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Shenzhen Haoshizai Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90Details of database functions independent of the retrieved data types
    • G06F16/95Retrieval from the web
    • G06F16/953Querying, e.g. by the use of web search engines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/02Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network 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
    • H04L63/0442Network 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 asymmetric encryption, i.e. different keys for encryption and decryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/104Peer-to-peer [P2P] networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

Abstract

The invention provides a commodity information query method, a system and a storage medium based on a block chain, wherein the commodity information query method comprises the following steps: step 1: building an ETH block chain consisting of N nodes, wherein ETH represents an Ether house and is called a alliance chain; the alliance chain is provided with a plurality of enterprise main bodies, each enterprise main body is provided with a plurality of organizations, and each organization is provided with a plurality of users; step 2, creating an account, and deploying and calling an intelligent contract; step 3, permission division and data isolation of a contract layer; step 4, data uplink step; step 5, uplink data query step. The invention has the beneficial effects that: according to the invention, the traceability information of the commodity is linked to the blockchain, and the traceability information of the commodity can be inquired from the blockchain, so that 'one thing and one code' can be realized, the traceability is true, the data linking is prevented from being tampered, and a consumer can inquire the commodity traceability information linked through the mobile phone APP.

Description

Commodity information query method and system based on block chain and storage medium
Technical Field
The present invention relates to the field of block chain technologies, and in particular, to a method, a system, and a storage medium for querying commodity information based on a block chain.
Background
Etherhouse ETH has been validated by the market for its high maturity and stability, but also suffers from the following drawbacks:
1. performance aspects: the uplink speed is slow; at present, the majority of block chains in the market are under 800 TPS (system throughput), and ether house ETH is no exception, and the root reason is that the common knowledge of each node is required to affect the block speed.
2. And (4) storage: the data redundancy is high, and the data volume carried by a single transaction is limited; all nodes in the blockchain whole network are billed together, which means that each node independently keeps all blocks, transactions, and accumulated state data since the creation of the block. Data is extremely redundant if analyzed from a distributed consistency perspective.
3. In the aspect of data volume carried by a single transaction, the service data volume carried by the single transaction is also limited, and the larger the carried data volume is, the more the uplink speed is influenced; of course, the advantages of the blockchain are not storage, which is only a means, but how to achieve trust in an untrusted network, which is a feature that the database does not have at present.
4. In the aspect of intelligent contracts, the intelligent contracts are used for third-party interface docking to realize exchange and transfer of assets, the intelligent contracts define right responsibility and default compensation of both transaction parties, the intelligent contracts can be automatically executed on a block chain platform, ETH successfully lies in the intelligent contracts, but the performance is influenced by introducing the intelligent contracts, and the intelligent contracts are executed by an EVM (Ethernet virtual machine) and are one of reasons influencing uplink speed.
5. In the economic aspect: the data uplink is expensive, and as the public link ETH is known, the amount of data to be uplink is large, and the higher the charge is.
6. And (3) data isolation: the Etherhouse ETH is a public chain essentially, data isolation and division are not performed, data confidentiality is not well performed, and the business requirements in reality cannot be met.
Disclosure of Invention
Aiming at the requirement that the commodities need to be traced, the tracing information of the commodities needs to be linked to a block chain, so that 'one thing and one code', source tracing fidelity, data linking and tampering prevention are realized, therefore, the invention introduces a block chain technology, provides a commodity information query method based on the block chain, and aims at the defects existing in Ether house ETH, and the invention is reformed and optimized based on the Ether house ETH, thereby reforming an alliance chain at the service level.
The invention provides a commodity information query method based on a block chain, which comprises the following steps:
step 1: building an ETH block chain consisting of N nodes, wherein ETH represents an Ether house and is called a alliance chain; the alliance chain is provided with a plurality of enterprise main bodies, each enterprise main body is provided with a plurality of organizations, and each organization is provided with a plurality of users;
step 2, creating an account, deploying and calling intelligent contracts: based on an ETH private chain, an account is created for each user, an organization to which the account belongs is designated, and the account can transfer accounts, deploy intelligent contracts and call the operations of the intelligent contracts;
step 3, permission division and data isolation of the contract layer: appointing an owner of the intelligent contract, planning and calling the access right of the intelligent contract, marking a TAG on data through the intelligent contract, and realizing data isolation at a contract layer;
step 4, data uplink step: automatic chain winding, manual check chain winding; when the uplink fails, automatically retrying and switching to a manual interface for retrying; directly calling a block chain bottom layer interface to bypass an intelligent contract and an EVM (event virtual machine), so that the uplink time is greatly saved, and the EVM represents an Ethernet workshop virtual machine;
step 5, uplink data query step: and (4) searching data on the link, namely searching data from the block link in real time by adopting synchronous query.
As a further improvement of the present invention, in the step 1, data between the enterprise entities is isolated; data between organizations is isolated; the organizations are divided into public organizations and private organizations; users in each organization share data; each user has a corresponding account number, mnemonic word, private Key, public Key and wallet address in the alliance chain, the Private Key represents a Private Key, and the Public Key represents a Public Key.
As a further improvement of the present invention, in step 2, a public contract is deployed on the public organization, and all users can invoke the public contract; each private organization can deploy its own private contract, and only users in the private organization can access its own private contract.
As a further improvement of the present invention, in step 3, all organizations share one block chain, different organizations may correspond to different Tag labels, tag labels may be marked on data during data chaining, and when querying data on the chain, one organization may see data corresponding to the Tag labels and perform control on an intelligent contract; all uplink data needs to be encrypted.
As a further improvement of the present invention, in step 3, each piece of data is asymmetrically encrypted, and each piece of uplink data has a corresponding private key and public key.
The invention also provides a commodity information inquiry system based on the block chain, which comprises an interaction module, a block chain web service module, an alliance chain and a storage module,
the interaction module and the block chain web service module perform data interaction to realize query of tracing information, wherein the tracing information comprises notarization data and non-notarization data;
the interaction module, the block chain web service module and the storage module carry out data interaction to realize file uploading, file downloading, non-notarization data writing and non-notarization data query;
the interaction module, the block chain web service module and the alliance chain carry out data interaction, so that public certificate data chaining, public certificate data query, public certificate data re-chaining and public certificate data full-check are realized, and when public certificate data are chained, the public certificate data need to be stored in the storage module at the same time to be backed up.
As a further improvement of the invention, the interaction module is a third-party system or a UI page, and the query of the tracing information comprises condition combination query of the tracing information, single query of the tracing information, full query of the tracing information, and sequencing query of the tracing information; the file comprises a picture and a certificate.
As a further improvement of the invention, the alliance chain comprises an application layer, an intelligent contract layer, a middle layer and a bottom layer,
the application layer is positioned at the topmost layer and comprises block chain management, block chain interaction, a block chain browser, account book management, block chain event management and authority management;
the intelligent contract layer interactively processes block chains and common recognition related transactions through EVM, and meanwhile, the interaction of mining and network layer transactions is carried out through RPC;
the middle layer comprises a block chain management module, a consensus module, an ore digging module, an account management module and a network module,
the block chain management module manages transactions, blocks and states, and comprises synchronous verification and exception and bifurcation processing of blocks, broadcast receiving processing and verification and execution of transactions, and read-write updating of bottom data;
the consensus module is a formulated mechanism for identifying the block to be legal, and a new block which accords with the consensus algorithm can be accepted and accepted by the nodes and is linked to the distributed account book, so that miners can obtain benefits;
the mine digging module manages mine digging work, and decomposes a process of competing for the bookkeeping right into a plurality of parallel subtasks for carrying out;
the account management module manages accounts in the system, and comprises generation and management of common accounts and contract accounts, and generation, import and export of wallets and secret keys;
the role in the network module management system provides a consensus foundation among the nodes for the whole distributed network;
the bottom layer provides the communication of the basic P2P network, the encryption and decryption algorithm, the efficient basic operation of the LevelDB key value pair storage database, the contract language base and the number for the upper layer module.
As a further improvement of the invention, the roles comprise Peer, protocol, downloader and Sync, and the encryption and decryption algorithms comprise secp251 and sha3.
The present invention also provides a computer-readable storage medium storing a computer program configured to implement the steps of the commodity information inquiry method of the present invention when called by a processor.
The invention has the beneficial effects that: according to the invention, the traceability information of the commodity is linked to the blockchain, and the traceability information of the commodity can be inquired from the blockchain, so that 'one thing and one code' can be realized, the traceability is true, the data linking is prevented from being tampered, and a consumer can inquire the commodity traceability information linked through the mobile phone APP.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic diagram of a framework corresponding to step 1;
FIG. 3 is a schematic diagram of a framework corresponding to step 2;
FIG. 4 is a schematic diagram of a framework corresponding to step 4;
FIG. 5 is a system schematic of the present invention;
FIG. 6 is a schematic diagram of a federation chain.
Detailed Description
As shown in fig. 1, the invention discloses a commodity information query method based on a block chain, comprising the following steps:
step 1: and (3) building an ETH block chain consisting of N nodes, wherein ETH represents the EtherFang and the ETH block chain is called a alliance chain.
As shown in fig. 2, the nodes are all deployed on the public network, and this blockchain network is maintained by each enterprise organization accessing the nodes together, and the nodes can be added continuously at a later stage. There may be multiple enterprise principals on a federation chain, with data between the enterprise principals being isolated; each enterprise principal may have multiple organizations, with data isolated between the organizations; the organization can self-define multi-level and multi-level nesting; the organization is divided into public organization (public group) and private organization (private group); each organization can have a plurality of users, and the users in each organization can share data; each user has a corresponding account number, mnemonic word, private Key, public Key, wallet address and the like in the block chain.
Step 2, creating an account, deploying and calling intelligent contracts: and based on the ETH private chain, an account is created for each user, an organization to which the account belongs is specified, and the account can transfer money, deploy the intelligent contract and call the operation of the intelligent contract.
As shown in fig. 3, a public contract is deployed on a public organization, and all users can invoke the public contract, that is, public data is visible to all users; each private organization can deploy its own private contract, and only users in the private organization can access its own private contract, that is, data in the private organization is visible to users in the private organization.
Step 3, permission division and data isolation of the contract layer: the owner of the intelligent contract is appointed, and the access right of calling the intelligent contract is planned, namely, different organizations correspond to different intelligent contracts, the intelligent contracts need to be distinguished and do not influence each other, and the later maintenance is facilitated; data are marked with TAG through the intelligent contract, data isolation is achieved in a contract layer, namely the data can be shared in the same organization, and the data among different organizations are invisible.
Technically, how to achieve that data can be shared within the same organization, with data invisible between different organizations? The implementation mode is as follows: all organizations share a block chain, different organizations can correspond to different Tag labels, tag labels can be marked on data during data chaining, and when the data on the chain is inquired, one organization can see the data corresponding to the Tag labels and control on an intelligent contract; all uplink data need to be encrypted, each piece of data needs to be asymmetrically encrypted, and each uplink data has a corresponding private key and public key.
Step 4, data uplink step: as shown in fig. 4, the data uplink is processed in an asynchronous manner: asynchronous uplink (ul queue) + asynchronous notification (callback queue). The method specifically comprises the following steps:
automatic chain winding, manual check chain winding;
when the uplink fails, automatically retrying and switching to a manual interface for retrying;
the mode of finer granularity division and dispersed writing of the uplink data improves the uplink speed;
and a block chain bottom layer interface is directly called to bypass the intelligent contract and the EVM, so that the uplink time is greatly saved.
Step 5, uplink data query step: and (4) searching data on the link, namely searching data from the block link in real time by adopting synchronous query.
As shown in fig. 5, the present invention further discloses a commodity information query system based on a blockchain, which includes an interaction module, a blockchain web service module, a federation chain, and a storage module.
The interaction module is a third-party system or a UI page. The alliance chain is an alliance chain based on an Ether house ETH private chain and realizes a business level.
The interaction module and the block chain web service module carry out data interaction, and condition combination query of the tracing information (including notary data and non-notary data), single query and full query of the tracing information, sequencing query of the tracing information and the like are realized.
The interaction module, the block chain web service module and the storage module carry out data interaction, and file uploading such as pictures/certificates and the like, file downloading such as pictures/certificates and the like, writing of non-notarization data and inquiring of the non-notarization data are achieved.
The interaction module, the block chain web service module and the alliance chain perform data interaction, so that public certificate data chaining (encryption), public certificate data query, public certificate data re-chaining, public certificate data full-inspection and the like are realized, and attention is paid to: when the notarization data are linked, the notarization data need to be stored in the storage module at the same time, and notarization data backup is carried out.
As shown in fig. 6, the federation chain includes an application layer, an intelligent contract layer, a middle layer, and a bottom layer.
The application layer is positioned at the topmost layer and comprises block chain management, block chain interaction, a block chain browser, account book management, block chain event management and authority management.
The intelligent contract layer interactively processes the block chain and the common recognition related affairs through the EVM, and meanwhile, the interaction of the mining and the network layer affairs is carried out through the RPC protocol.
The middle layer comprises a block chain management module, a consensus module, an ore digging module, an account management module and a network module.
The block chain management module manages transactions, blocks and states, and comprises synchronous verification and exception and bifurcation processing of blocks, broadcast receiving processing and verification and execution of transactions, and read-write updating of bottom data.
The consensus module is a formulated mechanism for identifying the block to be legal, and a new block which accords with the consensus algorithm can be approved and accepted by the nodes and is linked to the distributed account book, and meanwhile miners can obtain benefits.
And the mine digging module manages mine digging work and decomposes the process of competing for the accounting right into a plurality of parallel subtasks for carrying out.
The account management module manages accounts in the system, and comprises generation and management of common accounts and contract accounts, and generation, import and export of wallets and secret keys.
The network module manages the roles of Peer, protocol, downloader, sync and the like in the system and provides a consensus foundation among nodes for the whole distributed network.
The bottom layer provides communication of a basic P2P network, encryption and decryption algorithms such as secp251 and sha3, efficient basic operation of a levelDB key value pair storage database, a contract language base and numbers for the upper layer module.
According to the invention, the traceability information of the commodity of 1 Tech in Qianzhen 1 county is linked to the blockchain, and the traceability information of the commodity can be inquired from the blockchain, so that 'one thing and one code', the traceability is guaranteed, the data linking is prevented from being tampered, and a consumer can inquire the linked commodity traceability information through the mobile phone APP.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (8)

1. A commodity information query method based on a block chain is characterized by comprising the following steps:
step 1: building an ETH block chain consisting of N nodes, wherein ETH represents an Ether house and is called a alliance chain; the alliance chain is provided with a plurality of enterprise main bodies, each enterprise main body is provided with a plurality of organizations, and each organization is provided with a plurality of users;
step 2, creating an account, deploying and calling intelligent contracts: based on an ETH private chain, an account is established for each user, an organization to which the account belongs is designated, and the account can transfer accounts, deploy intelligent contracts and call the operations of the intelligent contracts;
step 3, permission division and data isolation of the contract layer: appointing an owner of the intelligent contract, planning and calling the access right of the intelligent contract, marking TAG on data through the intelligent contract, and realizing data isolation in a contract layer;
step 4, data uplink step: automatic chain winding, manual check chain winding; when the uplink fails, automatically retrying and switching to a manual interface for retrying; directly calling a block chain bottom layer interface, bypassing an intelligent contract and an EVM (event virtual machine), so that uplink time is greatly saved, wherein the EVM represents an Ethernet workshop virtual machine;
step 5, uplink data query step: and (4) searching data on the link, namely searching data from the block link in real time by adopting synchronous query.
2. The commodity information inquiry method according to claim 1, wherein in said step 1, data between business entities is isolated; data between organizations is isolated; the organization is divided into a public organization and a private organization; users in each organization share data; each user has a corresponding account number, mnemonic word, private Key, public Key and wallet address in the alliance chain, the Private Key represents a Private Key, and the Public Key represents a Public Key.
3. The commodity information query method according to claim 2, wherein in the step 2, a public contract is deployed on a public organization, and all users can invoke the public contract; each private organization can deploy its own private contract, and only users within the private organization can access its own private contract.
4. The method according to claim 3, wherein in step 3, all organizations share a block chain, different organizations correspond to different Tag labels, tag labels are marked on data during data chaining, and when data on the chain is queried, one organization sees the data corresponding to the Tag labels and performs control on an intelligent contract; all uplink data needs to be encrypted.
5. The method as claimed in claim 4, wherein in step 3, each piece of data is asymmetrically encrypted, and each piece of uplink data has a private key and a public key corresponding thereto.
6. A commodity information inquiry system based on a block chain is characterized by comprising an interaction module, a block chain web service module, a alliance chain and a storage module,
the interaction module and the block chain web service module perform data interaction to realize query of tracing information, wherein the tracing information comprises notarization data and non-notarization data;
the interaction module, the block chain web service module and the storage module perform data interaction to realize file uploading, file downloading, non-notarization data writing and non-notarization data query;
the interaction module, the block chain web service module and the alliance chain carry out data interaction, so that public certificate data chaining, public certificate data query, public certificate data re-chaining and public certificate data full check are realized, and when public certificate data are chained, the public certificate data need to be stored in the storage module at the same time to be backed up;
the interactive module is a third party system or a UI page,
the query of the tracing information comprises condition combination query of the tracing information, single query of the tracing information, and sequencing query of full query and tracing information;
the file comprises a picture and a certificate;
the alliance chain comprises an application layer, an intelligent contract layer, a middle layer and a bottom layer,
the application layer is positioned at the topmost layer and comprises block chain management, block chain interaction, a block chain browser, account book management, block chain event management and authority management;
the intelligent contract layer interactively processes block chains and common recognition related affairs through an EVM (event-based maintenance management) protocol, and meanwhile, the interaction of mining and network layer affairs is carried out through an RPC (remote procedure call) protocol;
the middle layer comprises a block chain management module, a consensus module, an ore digging module, an account management module and a network module,
the block chain management module manages transactions, blocks and states, and comprises synchronous verification and exception and bifurcation processing of blocks, broadcast receiving processing and verification and execution of transactions, and read-write updating of bottom data;
the consensus module is a formulated mechanism for identifying the block to be legal, and a new block which accords with the consensus algorithm can be accepted and accepted by the nodes and is linked to the distributed account book, so that miners can obtain benefits; the mine digging module manages mine digging work, and decomposes a process of competing for the bookkeeping right into a plurality of parallel subtasks for carrying out;
the account management module manages accounts in the system, and comprises generation and management of common accounts and contract accounts, and generation, import and export of wallets and secret keys;
the role in the network module management system provides a consensus foundation among the nodes for the whole distributed network;
the bottom layer provides the communication, encryption and decryption algorithms of a basic P2P network, an efficient LevelDB key value pair storage database, a contract language base and basic operation of numbers for the upper layer module.
7. The merchandise information query system of claim 6, wherein the encryption and decryption algorithm comprises secp251, sha3.
8. A computer-readable storage medium characterized by: the computer readable storage medium stores a computer program configured to implement the steps of the goods information query method according to any one of claims 1 to 5 when invoked by a processor.
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CN110334525A (en) * 2019-05-23 2019-10-15 积惠多(北京)科技有限公司 One kind being based on block chain multilayer alliance formula account management system and method

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