CN111159293A - Cross-link information verification method based on light node technology - Google Patents
Cross-link information verification method based on light node technology Download PDFInfo
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- CN111159293A CN111159293A CN201911359727.8A CN201911359727A CN111159293A CN 111159293 A CN111159293 A CN 111159293A CN 201911359727 A CN201911359727 A CN 201911359727A CN 111159293 A CN111159293 A CN 111159293A
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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
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a light node technology-based cross-link information verification method, which comprises the following steps: step S1: implementing a light node of an information source chain on an information receiving chain, wherein the light node synchronizes block header information by connecting with a full node on the information source chain; step S2: deploying a cross-chain information processing module on an information receiving chain; step S3: realizing decentralized relaying; step S4: verifying the block head from the information source chain through the light node, and storing the block head after the cross-chain information processing module receives the verified block head of the information source chain; step S5: and the cross-chain information processing module verifies the received transaction certificate, transaction receipt certificate or state certificate after transaction execution, which contains the cross-chain information, according to the stored transaction root, transaction receipt root or state root in the block header, extracts the cross-chain information contained in the certificate after verification is passed, and performs subsequent processing.
Description
Technical Field
The invention belongs to the technical field of block chains, relates to a block chain light node technology and a cross-chain technology, and particularly relates to a method for realizing cross-chain transaction in a mode of authenticating a block header and transaction information on a chain.
Background
The block chain technology is decentralized distributed database technology and is characterized by decentralization, no tampering and trustiness. At present, each chain is an independent closed system and cannot cooperate with other chains.
A blockchain light node is a concept relative to a blockchain full node. The full node is a node that synchronizes all blockchain data, and includes related information such as a Block Header (Block Header) and a blockchain body containing a transaction list. Because the full node stores the full amount of data, the third party is not required to be relied on when the data is verified. What is called a blockchain light node (light client) is that only a Block Header (Block Header) is needed, and information such as a full transaction list is not stored. Whether a transaction is in the current blockchain transaction list is judged through Merkle tree certification. This enables the blockchain light node to run on a small-capacity personal PC or the like terminal device.
In the aspect of cross-chain asset transfer, a centralized exchange completes the conversion of assets on different chains, which is not consistent with the decentralized nature of the block chain, and the transfer of non-asset information is difficult to solve. Information intercommunication between blockchains allows different chains to cooperate with each other, thus requiring a scheme for decentralized, secure transfer of assets or other information between blockchains; substrate is a next-generation open-source framework kernel of blockchain innovation, and the kernel can be just like a Linux kernel, and various blockchain systems can be conveniently developed based on the kernel.
Disclosure of Invention
In order to solve the safety problem during information cross-link transmission, the invention provides a safe and effective information verification method based on a light node technology, aiming at improving the information transmission safety through a decentralized scheme, and the invention achieves the aim through the following technical scheme:
a cross-link information verification method based on a light node technology comprises the following steps:
step S1: implementing a light node of an information source chain on an information receiving chain, wherein the light node synchronizes block header information by connecting with a full node on the information source chain;
step S2: deploying a cross-chain information processing module on the information receiving chain, wherein the cross-chain information processing module stores a block header from the information source chain and verifies a transaction certificate, a transaction receipt certificate or a state certificate generated from the information source chain;
step S3: the method comprises the steps of realizing decentralized relay, monitoring an information source chain, and submitting a block head of the information source chain and a transaction certificate, a transaction receipt certificate or a state certificate after transaction execution containing cross-chain information to an information receiving chain in a transaction mode after the information source chain generates a new block or cross-chain information;
step S4: the information receiving chain verifies that the block head of the information source chain contained in the transaction passes through the light node before packaging the new block, discards the related transaction which fails in verification, only packages the transaction which passes the verification, and the other nodes of the information receiving chain also verify that the block head of the information source chain contained in the related transaction passes through the light node after receiving the new block, and discards the block if the verification fails; the cross-chain information processing module receives the block head of the information source chain passing the verification and then stores the block head;
step S5: the cross-chain information processing module verifies the received transaction certificate, transaction receipt certificate or state certificate after transaction execution, wherein the transaction certificate, the transaction receipt certificate or the state certificate contains cross-chain information, according to a transaction root (root), a transaction receipt root (root) or a state root (state root) in a stored block header, extracts the cross-chain information contained in the certificate after verification is passed, and performs subsequent processing.
Further, the cross-chain information processing module comprises a runtime module of a blockchain developed based on a smart contract or a substtate.
Further, the relay in step S3 may also submit only the block header of the information source chain, and submit the relevant certificate containing the cross-chain information to the cross-chain information processing module by the user or others.
Further, the relaying is realized in a centralized manner.
Further, the verification of the transaction certificate, the transaction receipt certificate or the status certificate by the cross-chain information processing module in step S5 is performed by the node before packaging the new tile and when the new tile is commonly identified, and the cross-chain information processing module does not need to store the tile header information from the information source chain.
Further, in step S3, only the cross-link information and the identifier such as the hash or the state path of the related transaction are submitted, and before the information receiving chain performs the packet transaction, the light node verifies the cross-link information included in the related transaction by requesting the related data from all the nodes of the information source chain.
Further, the cross-chain information processing module processes different cross-chain information by a plurality of modules respectively.
Furthermore, the cross-chain information processing module only realizes cross-chain information verification, other modules call the cross-chain information processing module to verify after receiving the cross-chain information, and the other modules process the relevant information after the verification is passed.
Furthermore, the cross-chain information processing module is used as a unique entrance, and other modules for processing specific cross-chain information subscribe specific cross-chain information in a mode of registering the cross-chain information processing module and perform subsequent processing.
The cross-chain information verification method based on the light node technology enables the light node to run on terminal equipment such as a small-capacity personal PC and the like, enriches the application environment of the block chain technology, and can perform centralized and safe transaction, asset transmission or other information among the block chains.
Drawings
FIG. 1 is a schematic diagram illustrating the communication among nodes after implementing light nodes of an information source chain (source chain) on an information receiving chain (destination chain);
FIG. 2 is a diagram illustrating a process of receiving a message receive chain (target chain) block header by a message source chain (source chain);
FIG. 3 is a diagram illustrating a process of an information source chain (source chain) receiving cross-chain information from an information receiving chain (destination chain).
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and preferred examples.
The operation architecture of the cross-link information verification method based on the light node technology is shown in fig. 1, wherein before a new block is packed, an information receiving chain (target chain) verifies cross-link information through a light node of an information source chain (source chain), so that cross-link information transmission is realized. Firstly, information source chain (source chain) block head information is submitted to an information receiving chain (target chain) in a decentralized mode, the information receiving chain (target chain) verifies the information in the block head in a mode of calling an internal information source chain (source chain) light node in a consensus process, and the block head information of the information source chain (source chain) is stored in a chain cross-chain information processing module during block execution. After a user sends a transaction which can generate cross-link information on an information source chain (source chain), a corresponding transaction certificate, a transaction receipt certificate or a state certificate is submitted to a cross-link information processing module in a decentralized mode, the cross-link information processing module verifies the transaction certificate, the transaction receipt certificate or the state certificate according to a transaction root (root), the transaction receipt root (root) or the state root (state root) in a stored block header, and effective cross-link information in the transaction certificate, the transaction receipt root or the state root is extracted after the verification is passed, so that cross-link information transmission is achieved.
As shown in fig. 2 and 3, the method comprises the steps of:
step S1: implementing a light node of an information source chain (source chain) on an information receiving chain (destination chain), the light node synchronizing block header information by connecting with a full node on the information source chain (source chain);
step S2: deploying a cross-chain information processing module on an information receiving chain (target chain), wherein the cross-chain information processing module comprises but is not limited to intelligent contracts similar to those on an Etherns, runtime modules of block chains developed based on substrate and the like, and the cross-chain information processing module realizes the function of saving block headers of an information source chain (source chain) and the function of verifying transaction certificates, transaction receipt certificates or state certificates generated from the information source chain (source chain);
step S3: the method comprises the steps of realizing decentralized relay, monitoring an information source chain (source chain), and submitting a block head of the information source chain (source chain) and a transaction certificate, a transaction receipt certificate or a state certificate after transaction execution containing cross-chain information to an information receiving chain (target chain) in a transaction mode after the information source chain (source chain) generates a new block or cross-chain information;
step S4: before packing a new block, an information receiving chain (target chain) verifies that a block head of an information source chain (source chain) contained in a transaction passes through a light node, discards related transactions which do not pass the verification, only packs the transactions which pass the verification, and after receiving the new block, other nodes of the information receiving chain (target chain) also verify that the block head of the information source chain contained in the related transactions passes through the light node, if the verification does not pass, the block is discarded, and the block head of the information source chain which passes the verification is received by a cross-chain information processing module and then stored;
step S5: after receiving a transaction certificate, a transaction receipt certificate or a state certificate after transaction execution containing cross-chain information, the cross-chain information processing module verifies the cross-chain information according to a transaction root (root), a transaction receipt root (root) or a state root (state root) in a stored block header, extracts the cross-chain information contained in the certificate after the verification is passed, and performs subsequent processing.
The relay in step S3 may also only submit a new tile header, and a user or another person submits a relevant certificate containing the cross-link information to the cross-link information processing module; the relaying may also be achieved in a centralized manner.
The verification of the transaction certificate, the transaction receipt certificate or the status certificate by the cross-link information processing module in step S5 can also be performed by the node before packaging the new tile and during the process of commonly identifying the new tile, so that the tile header information from the information source chain (source chain) does not need to be saved in step S2.
The transaction certificate, the transaction receipt certificate or the state certificate can be not included in the transaction submitted to the information receiving chain (target chain), only cross-chain information and marks such as related transaction hash or state paths are submitted instead, and before the information receiving chain (target chain) packages the transaction, the light node verifies the cross-chain information included in the related transaction in a mode of requesting related data from all nodes of the information source chain (source chain) to ensure the authenticity;
the cross-chain information processing module can also be used for processing different cross-chain information by a plurality of modules respectively;
the cross-chain information processing module can only realize the function of cross-chain information verification, other modules call the cross-chain information processing module for verification after receiving the cross-chain information, and the related information is automatically processed after the verification is passed;
the cross-chain information processing module can be used as a unique entrance, and other modules for processing the specific cross-chain information subscribe the specific cross-chain information in a registration mode through the module and perform subsequent processing.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A cross-link information verification method based on a light node technology is characterized by comprising the following steps:
step S1: implementing a light node of an information source chain on an information receiving chain, wherein the light node synchronizes block header information by connecting with a full node on the information source chain;
step S2: deploying a cross-chain information processing module on the information receiving chain, wherein the cross-chain information processing module stores a block header from the information source chain and verifies a transaction certificate, a transaction receipt certificate or a state certificate generated from the information source chain;
step S3: the method comprises the steps of realizing decentralized relay, monitoring an information source chain, and submitting a block head of the information source chain and a transaction certificate, a transaction receipt certificate or a state certificate after transaction execution containing cross-chain information to an information receiving chain in a transaction mode after the information source chain generates a new block or cross-chain information;
step S4: the information receiving chain verifies that the block head of the information source chain contained in the transaction passes through the light node before packaging the new block, discards the related transaction which fails in verification, only packages the transaction which passes the verification, and the other nodes of the information receiving chain also verify that the block head of the information source chain contained in the related transaction passes through the light node after receiving the new block, and discards the block if the verification fails; the cross-chain information processing module receives the block head of the information source chain passing the verification and then stores the block head;
step S5: the cross-chain information processing module verifies the received transaction certificate, transaction receipt certificate or state certificate after transaction execution, wherein the transaction certificate, the transaction receipt certificate or the state certificate contains cross-chain information, according to a transaction root (root), a transaction receipt root (root) or a state root (state root) in a stored block header, extracts the cross-chain information contained in the certificate after verification is passed, and performs subsequent processing.
2. The light node technology-based cross-chain information verification method of claim 1, wherein: the cross-chain information processing module comprises a runtime module of a blockchain developed based on a smart contract or a substtate.
3. The light node technology-based cross-chain information verification method of claim 1, wherein: the relay in step S3 may also submit only the block header of the information source chain, and submit the relevant certificate containing the cross-chain information to the cross-chain information processing module by the user or others.
4. The light node technology-based cross-chain information verification method according to claim 1 or 3, characterized in that: the relaying is achieved in a centralized manner.
5. The light node technology-based cross-chain information verification method of claim 1, wherein: the verification of the transaction certificate, the transaction receipt certificate or the status certificate by the cross-chain information processing module in step S5 is performed by the node before the new block is packaged and when the new block is identified, and the cross-chain information processing module does not need to store the block header information from the information source chain.
6. The light node technology-based cross-chain information verification method of claim 1, wherein: in step S3, only the identification such as the cross-link information and the hash or state path of the related transaction is submitted, and before the information receiving chain performs the packet transaction, the light node verifies the cross-link information included in the related transaction by requesting the related data from all the nodes of the information source chain.
7. The light node technology-based cross-chain information verification method of claim 1, wherein: the cross-chain information processing module processes different cross-chain information by a plurality of modules respectively.
8. The light node technology-based cross-chain information verification method of claim 1, wherein: the cross-chain information processing module only realizes cross-chain information verification, other modules call the cross-chain information processing module for verification after receiving the cross-chain information, and the relevant information is automatically processed after the verification is passed.
9. The light node technology-based cross-chain information verification method of claim 1, wherein: the cross-chain information processing module is used as a unique entrance, and other modules for processing the specific cross-chain information subscribe the specific cross-chain information in a registration mode through the cross-chain information processing module and perform subsequent processing.
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| CN111769957A (en) * | 2020-09-02 | 2020-10-13 | 百度在线网络技术（北京）有限公司 | Block chain cross-chain query method, device, equipment and storage medium |
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| CN114782045A (en) * | 2022-06-16 | 2022-07-22 | 中国信息通信研究院 | Cross-chain non-transactional writing method and device, storage medium and electronic equipment |
| CN114782045B (en) * | 2022-06-16 | 2022-08-23 | 中国信息通信研究院 | Cross-chain non-transactional writing method and device, storage medium and electronic equipment |
| WO2024066012A1 (en) * | 2022-09-30 | 2024-04-04 | 蚂蚁区块链科技(上海)有限公司 | Method and apparatus for converting peer type in blockchain system, and blockchain system |
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