CN113469689A - Block chain cross-chain transaction method and system - Google Patents
Block chain cross-chain transaction method and system Download PDFInfo
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- CN113469689A CN113469689A CN202110837493.4A CN202110837493A CN113469689A CN 113469689 A CN113469689 A CN 113469689A CN 202110837493 A CN202110837493 A CN 202110837493A CN 113469689 A CN113469689 A CN 113469689A
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/405—Establishing or using transaction specific rules
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Abstract
The invention provides a block chain cross-chain transaction method and a system, wherein the method comprises the following steps: a first blockchain sends a cross-chain transaction request, wherein the cross-chain transaction request comprises transaction information and a verification protocol of cross-chain transaction; verifying the verification protocol according to a preset verification rule, and if the verification is passed, confirming the cross-link transaction; acquiring a position index of the current cross-chain transaction in the blockchain transaction from the confirmed cross-chain transaction, and determining a transaction state of the current cross-chain transaction stored in an identification storage unit according to the position index, wherein the transaction state comprises an unscheduled transaction and a transacted transaction; judging whether the cross-chain transaction is packaged or not according to the transaction state, and if the transaction state is not transaction, packaging transaction information of the cross-chain transaction; and sending the packaged transaction information to a second blockchain. The invention ensures accurate transaction by verifying the verification protocol, improves the duplicate removal efficiency by judging the transaction state and ensures the transaction efficiency.
Description
Technical Field
The present invention relates to the field of blockchain technologies, and in particular, to a blockchain cross-chain transaction method and system.
Background
The blockchain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism and an encryption algorithm. In order to meet the requirements of various application scenarios, information interaction is required between blockchains. The block chains are all independent blocks, and as the types of the block chains are richer and richer, the structures of the block chains of different types are different, the block chains generally do not support the transmission of transactions in the block chains of different types, the transactions are troublesome, the cross-chain transactions cannot be realized, and the transaction intercommunication cannot be realized. The chain crossing is a complex process, which requires separate verification capability for nodes in the chain, decentralized input and acquisition and verification of information of the world outside the chain. The investigation and improvement of cross-link transactions between block chains is an important subject direction for those skilled in the art.
Disclosure of Invention
The invention aims to provide a block chain cross-chain transaction method and a block chain cross-chain transaction system, which ensure accurate transaction by verifying a verification protocol, improve the deduplication efficiency by judging the transaction state and ensure the transaction efficiency.
In order to achieve the purpose, the invention provides the following scheme:
a blockchain cross-chain transaction method comprises the following steps:
s1, the first blockchain sends a cross-chain transaction request, wherein the cross-chain transaction request comprises transaction information and a verification protocol of the cross-chain transaction;
s2, verifying the verification protocol according to a preset verification rule, and if the verification is passed, confirming the cross-link transaction;
s3, obtaining a position index of the present cross-chain transaction in the blockchain transaction from the confirmed cross-chain transaction, and determining a transaction state of the present cross-chain transaction stored in the identification storage unit according to the position index, wherein the transaction state comprises an unscheduled transaction and a transacted transaction;
s4, judging whether to pack the cross-chain transaction according to the transaction state, and if the transaction state is not transaction, packing the transaction information of the cross-chain transaction;
and S5, sending the packaged transaction information to a second block chain.
Further, in step S2, verifying the verification protocol according to a preset verification rule specifically includes:
acquiring a verification rule registered by a first block chain, wherein the verification rule is a verification code for verifying zero knowledge proof;
running the verification code, and verifying the zero knowledge proof;
the transaction information comprises a transaction ciphertext, a transaction plaintext and a zero knowledge proof, the zero knowledge proof is the verification protocol generated by a first block chain by using the transaction ciphertext as public input and the transaction plaintext as private input and running a preset zero knowledge proof generation code.
Further, the step S4 further includes:
and if the transaction state is the transaction, not packaging the cross-chain transaction, and feeding back a repeated transaction prompt.
Further, the step S4 further includes: and after the transaction information of the current cross-chain transaction is packaged, updating the transaction state stored in the identification storage unit into the packaged transaction state.
The invention also provides a blockchain cross-chain transaction system which is applied to the blockchain cross-chain transaction method, wherein the first blockchain comprises a sending module for sending a cross-chain transaction request and a first storage module for storing transaction information and a verification protocol of the cross-chain transaction; the second blockchain comprises a receiving module for receiving cross-chain transaction information and a second storage module for storing the cross-chain transaction information; the system further comprises a relay block chain, wherein the relay block chain comprises a verification module used for verifying the verification protocol according to a preset verification rule, an identification storage unit used for storing the transaction state of the cross-chain transaction, and a packaging identification module used for judging whether to package the cross-chain transaction according to the transaction state.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: according to the block chain cross-chain transaction method and system provided by the invention, the cross-chain transaction comprises the verification protocol, and the relay block chain does not need to verify the target chain again after the verification protocol passes, so that the cross-chain gateway keeps a lightweight level; meanwhile, the verification of cross-link transaction by the relay link is more reliable; the transaction state is used for monitoring the transaction, the completed transaction is prevented from occupying a packaging storage space, the deduplication efficiency is improved, the limitation of a cross-chain transaction sending or receiving sequence is avoided, and the flexibility and the reliability are improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a flowchart illustrating a blockchain cross-chain transaction method according to an embodiment of the invention.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The invention aims to provide a block chain cross-chain transaction method and a block chain cross-chain transaction system, which ensure accurate transaction by verifying a verification protocol, improve the deduplication efficiency by judging the transaction state and ensure the transaction efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic flow chart of a blockchain cross-chain transaction method according to an embodiment of the present invention, and as shown in fig. 1, the blockchain cross-chain transaction method according to the embodiment of the present invention includes the following steps:
s1, the first blockchain sends a cross-chain transaction request, wherein the cross-chain transaction request comprises transaction information and a verification protocol of the cross-chain transaction;
s2, verifying the verification protocol according to a preset verification rule, and if the verification is passed, confirming the cross-link transaction;
s3, obtaining a position index of the present cross-chain transaction in the blockchain transaction from the confirmed cross-chain transaction, and determining a transaction state of the present cross-chain transaction stored in the identification storage unit according to the position index, wherein the transaction state comprises an unscheduled transaction and a transacted transaction;
s4, judging whether to pack the cross-chain transaction according to the transaction state, and if the transaction state is not transaction, packing the transaction information of the cross-chain transaction;
and S5, sending the packaged transaction information to a second block chain.
In step S2, verifying the verification protocol according to a preset verification rule specifically includes:
acquiring a verification rule registered by a first block chain, wherein the verification rule is a verification code for verifying zero knowledge proof;
running the verification code, and verifying the zero knowledge proof;
the transaction information comprises a transaction ciphertext, a transaction plaintext and a zero knowledge proof, the zero knowledge proof is the verification protocol generated by a first block chain by using the transaction ciphertext as public input and the transaction plaintext as private input and running a preset zero knowledge proof generation code.
In step S4, the method further includes:
and if the transaction state is the transaction, not packaging the cross-chain transaction, and feeding back a repeated transaction prompt.
In step S4, the method further includes: and after the transaction information of the current cross-chain transaction is packaged, updating the transaction state stored in the identification storage unit into the packaged transaction state.
The invention also provides a blockchain cross-chain transaction system which is applied to the blockchain cross-chain transaction method, wherein the first blockchain comprises a sending module for sending a cross-chain transaction request and a first storage module for storing transaction information and a verification protocol of the cross-chain transaction; the second blockchain comprises a receiving module for receiving cross-chain transaction information and a second storage module for storing the cross-chain transaction information; the system further comprises a relay block chain, wherein the relay block chain comprises a verification module used for verifying the verification protocol according to a preset verification rule, an identification storage unit used for storing the transaction state of the cross-chain transaction, and a packaging identification module used for judging whether to package the cross-chain transaction according to the transaction state.
According to the block chain cross-chain transaction method and system provided by the invention, the cross-chain transaction comprises the verification protocol, and the relay block chain does not need to verify the target chain again after the verification protocol passes, so that the cross-chain gateway keeps a lightweight level; meanwhile, the verification of cross-link transaction by the relay link is more reliable; the transaction state is used for monitoring the transaction, the completed transaction is prevented from occupying a packaging storage space, the deduplication efficiency is improved, the limitation of a cross-chain transaction sending or receiving sequence is avoided, and the flexibility and the reliability are improved.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. A block chain cross-chain transaction method is applied between a first block chain and a second block chain, and is characterized by comprising the following steps:
s1, the first blockchain sends a cross-chain transaction request, wherein the cross-chain transaction request comprises transaction information and a verification protocol of the cross-chain transaction;
s2, verifying the verification protocol according to a preset verification rule, and if the verification is passed, confirming the cross-link transaction;
s3, obtaining a position index of the present cross-chain transaction in the blockchain transaction from the confirmed cross-chain transaction, and determining a transaction state of the present cross-chain transaction stored in the identification storage unit according to the position index, wherein the transaction state comprises an unscheduled transaction and a transacted transaction;
s4, judging whether to pack the cross-chain transaction according to the transaction state, and if the transaction state is not transaction, packing the transaction information of the cross-chain transaction;
and S5, sending the packaged transaction information to a second block chain.
2. The blockchain inter-chain transaction method according to claim 1, wherein in the step S2, verifying the verification protocol according to a preset verification rule specifically includes:
acquiring a verification rule registered by a first block chain, wherein the verification rule is a verification code for verifying zero knowledge proof;
running the verification code, and verifying the zero knowledge proof;
the transaction information comprises a transaction ciphertext, a transaction plaintext and a zero knowledge proof, the zero knowledge proof is the verification protocol generated by a first block chain by using the transaction ciphertext as public input and the transaction plaintext as private input and running a preset zero knowledge proof generation code.
3. The blockchain cross-chain transaction method according to claim 1, wherein the step S4 further includes:
and if the transaction state is the transaction, not packaging the cross-chain transaction, and feeding back a repeated transaction prompt.
4. The blockchain cross-chain transaction method according to claim 1, wherein the step S4 further includes: and after the transaction information of the current cross-chain transaction is packaged, updating the transaction state stored in the identification storage unit into the packaged transaction state.
5. A blockchain cross-chain transaction system applied to the blockchain cross-chain transaction method of any one of claims 1 to 4, wherein the first blockchain comprises a sending module for sending a cross-chain transaction request, and a first storage module for storing transaction information and a verification protocol of the cross-chain transaction; the second blockchain comprises a receiving module for receiving cross-chain transaction information and a second storage module for storing the cross-chain transaction information; the system further comprises a relay block chain, wherein the relay block chain comprises a verification module used for verifying the verification protocol according to a preset verification rule, an identification storage unit used for storing the transaction state of the cross-chain transaction, and a packaging identification module used for judging whether to package the cross-chain transaction according to the transaction state.
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| CN107862216A (en) * | 2017-10-13 | 2018-03-30 | 布比（北京）网络技术有限公司 | Method for secret protection, device and the storage medium merchandised for anonymity across chain |
| CN112579599A (en) * | 2020-12-18 | 2021-03-30 | 北京链飞未来科技有限公司 | Block chain cross-chain transaction duplication removal method and device |
| CN112822181A (en) * | 2020-12-30 | 2021-05-18 | 杭州趣链科技有限公司 | Verification method of cross-chain transaction, terminal device and readable storage medium |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862216A (en) * | 2017-10-13 | 2018-03-30 | 布比（北京）网络技术有限公司 | Method for secret protection, device and the storage medium merchandised for anonymity across chain |
| CN112579599A (en) * | 2020-12-18 | 2021-03-30 | 北京链飞未来科技有限公司 | Block chain cross-chain transaction duplication removal method and device |
| CN112822181A (en) * | 2020-12-30 | 2021-05-18 | 杭州趣链科技有限公司 | Verification method of cross-chain transaction, terminal device and readable storage medium |
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