CN115001712A - Method, system and medium for value communication transmission between block chains - Google Patents
Method, system and medium for value communication transmission between block chains Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3218—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
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- G—PHYSICS
- 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
- 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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- G—PHYSICS
- 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
- 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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- G—PHYSICS
- 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
- 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
Abstract
The invention provides a method, a system and a medium for transmitting value communication among block chains, which relate to the technical field of block chains and comprise the following steps: a locking step: for a contract address on a chain, calling the contract to generate related cross-chain transaction when the cross-chain is needed, and locking a to-be-cross-chain certificate in the contract; communication steps are as follows: after confirming the certification locking, sending a communication application to the cross-entering block chain, and transmitting related transaction information to a verification step; a verification step: checking whether a cross-chain transaction locked at a specific contract address exists in the cross-chain locking step; a generation step: and updating the chain state of the cross-out chain and the cross-in chain according to the verified transaction information, and generating a corresponding pass certificate at the chain address of the cross-in chain. The invention can check the authenticity and the validity of the cross-chain transaction, realize the value transfer between chains and promote the synergistic effect between chains.
Description
Technical Field
The present invention relates to the field of blockchain technology, and in particular, to a method, system and medium for transmitting value communication between blockchains.
Background
The blockchain is a shared, non-tamperable and traceable distributed ledger, can be used for transaction records of a public network or a private network, and can effectively promote transaction records and asset transfer processes in a service network.
With the rapid development of the block chain technology, the demand for value communication transmission between block chains is becoming stronger, and the role of the method is to realize asset transition and circulation of different block chains, and further realize value intercommunication and service complementation between chains.
The existing value communication transmission method has the following defects: the fact that all operations cannot be completed on the chain requires intervention of a third party, and a centralized risk exists to a certain extent; relying on the relay unit to maintain the form of transaction information or aggregated block certification results in a long validation time, and because the relay unit is required to synchronize data on the link, it takes up a very large amount of memory and effort to provide verification, and the user experience is poor.
The invention patent with publication number CN114244537B discloses an information processing system based on cross-link communication and multi-link fusion, which receives information to be processed and a processing method of the information from a user and generates an event package; after the event packet and the target sending address of the information are encapsulated, an encapsulating packet is generated; packaging a plurality of packaging packets into communication packets; the communication packet is sent to a transfer unit, and the transfer unit generates a plurality of transfer information facing to the same block chain based on a specific target address; and sending the transit information to a target block chain for decapsulation and processing. The invention aims to pack and package transaction information and then unpack the transaction information in a target area, so that a certain centralized risk exists, all operations cannot be completed on a chain to a certain extent, and a trusted third party is required to intervene to provide related verification services.
The invention patent with publication number CN114185996A discloses a method and device for cross-chain transaction processing, which is applied to a relay unit in a cross-chain system; intelligent contracts are pre-deployed in at least two block chains of the chain crossing system; the method comprises the following steps: acquiring a target cross-chain transaction containing at least two sub-transactions from a cross-chain transaction table maintained by the relay unit; generating at least two first-class calling transactions respectively corresponding to the at least two sub-transactions, respectively sending the first-class calling transactions to the at least two block chains, calling an attempt logic in the intelligent contract, reserving transaction resources corresponding to the at least two sub-transactions, and feeding back a reserved result to the relay unit; if the reserved results are successful, generating at least two second-class calling transactions respectively corresponding to the at least two sub-transactions, respectively sending the at least two second-class calling transactions to the at least two block chains, calling a confirmation logic in the intelligent contracts in the at least two block chains, and completing the at least two sub-transactions. The method includes the steps of maintaining a cross-chain transaction table based on a relay unit, obtaining a target cross-chain transaction containing at least two sub-transactions, forming at least two first-class calling transactions respectively corresponding to the at least two sub-transactions, and respectively sending the first-class calling transactions to at least two block chains. In the method, an effective verification link is lacked in the relay unit, the transaction final performance on different chains is influenced by multiple factors by relying on consensus on the chain, and the user experience is influenced to a certain extent by the chain-crossing method.
An invention patent publication No. CN114219649A discloses a cross-chain asset transfer method, computer device and storage medium, the method comprising: and executing a first asset cross-chain transaction, storing a first asset to be transferred to a second block chain, wherein the asset type is a second asset type, into a first asset cross-chain contract of the current block chain, and using a first evidence-storing hash of the first asset as a newly-added leaf node of a first cross-chain single-class asset tree corresponding to the second block chain and the second asset type in a first cross-chain asset aggregation tree of the first asset cross-chain contract to update the first cross-chain asset aggregation tree. The aggregation class proves that the block aggregated at one time has an upper limit, and the more blocks aggregated, the longer the generated proving time; this may result in a lengthening of the time that these blocks are acknowledged, especially those blocks that were generated earliest.
Disclosure of Invention
In view of the deficiencies in the prior art, the present invention provides a method, system and medium for transmitting a valuable communication between block chains.
According to the value communication transmission method, system and medium between block chains provided by the invention, the scheme is as follows:
in a first aspect, a method for transmitting value communication between blockchains is provided, the method comprising:
locking: for a contract address on a chain, calling the contract to generate related cross-chain transaction when the cross-chain is needed, and locking a to-be-cross-chain certificate in the contract;
communication steps are as follows: after confirming the certification locking, sending a communication application to the cross-entering block chain, and transmitting related transaction information to a verification step;
a verification step: checking whether a cross-chain transaction locked at a specific contract address exists in the cross-chain locking step;
a generation step: and updating the chain states of the cross-out chain and the cross-in chain according to the verified transaction information, and generating corresponding certificates on the addresses of the cross-in chain.
Preferably, the verifying step specifically includes: in the verification step, there is a state snapshot generated using recursive zero knowledge proof, and a new state generation will contain all the correctness proofs generated by the old state generation to generate a new state proof snapshot for checking whether a cross-chain transaction locked to a specific contract address exists in the cross-chain locking step.
Preferably, each proof contains the validity of all calculations up to that point, the size of the proof is fixed, and is independent of the number of recursions.
Preferably, if the verification is passed, releasing the relevant evidence on the corresponding cross-in chain, and updating the chain account book state;
if the verification is not passed, the communication is closed, and the certificate of the locking step is returned.
In a second aspect, there is provided a system for communicating value between blockchains, the system comprising:
a locking module: calling the contract to generate related cross-link transaction when the cross-link is needed for the contract address on the link, and locking the communication certificate to be cross-linked in the contract;
a communication module: after the certification-passing locking is confirmed, a communication application is sent to the cross-entering block chain, and related transaction information is transmitted to the verification module;
a verification module: checking whether a cross-chain transaction locked at a specific contract address exists in a cross-chain locking module;
a generation module: and updating the chain states of the cross-out chain and the cross-in chain according to the verified transaction information, and generating corresponding certificates on the addresses of the cross-in chain.
Preferably, the verification module specifically includes: in the verification module, a state snapshot generated by adopting recursive zero knowledge proof exists, a new state generation contains all correctness proofs generated by old state generation, and a new state proof snapshot is generated to check whether a cross-chain transaction locked at a specific contract address exists in the cross-chain locking module.
Preferably, each proof contains the validity of all calculations up to that point, the size of the proof is fixed, and is independent of the number of recursions.
Preferably, if the verification is passed, releasing the relevant evidence on the corresponding cross-in chain, and updating the chain account book state;
if the verification is not passed, the communication is closed, and the certificate of the locking module is returned.
In a second aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through adopting a chain-crossing device with recursive zero-knowledge proof, network communication and value interconnection among different block chains are solved, operation under the chain is not needed, and third-party intervention is not needed, so that privacy safety is guaranteed;
2. according to the invention, a plurality of block chain networks are connected with each other through a chain-crossing technology, so that the plurality of block chain networks are communicated with each other, thereby breaking the situation of a value island; meanwhile, the recursive zero knowledge is adopted to prove that the transaction information or the aggregation block certification is not maintained by the relay unit, the confirmation time is effectively saved, the occupied amount of the generated snapshot on the storage space is small, and the user experience can be improved.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is an overall block diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
The embodiment of the invention provides a value communication transmission method among block chains, which comprises the following steps:
locking: and a contract address on one chain, wherein the user can call the contract to generate related cross-chain transaction when needing cross-chain, and the to-be-cross-chain evidence is locked in the contract.
Communication steps are as follows: after the certification locking is confirmed, a communication application is sent to the cross-entering block chain, and related transaction information is transmitted to the verification step.
A verification step: in the verification step, there are state snapshots generated using recursive zero knowledge proofs, new state proofs will contain correctness proofs of all old state proofs, and new state proof snapshots are generated to check whether a cross-chain transaction locked to a particular contract address exists in the cross-chain locking step (each proof contains the validity of all previous calculations, the size of the proof is fixed, and the number of recursions is irrelevant). If the verification is passed, releasing the relevant permit on the corresponding cross-in chain, and updating the state of the chain account book; if the verification is not passed, the communication is closed, and the certificate of the locking step is returned.
A generation step: and updating the chain state of the out-crossing chain and the in-crossing chain according to the verified transaction information, and generating a corresponding pass certificate at the chain address of the in-crossing chain provided by the user.
An embodiment of the present invention provides a system for transmitting value communication between block chains, which is shown in fig. 1 and specifically includes:
a locking module: and a contract address on one chain, wherein the user can call the contract to generate related cross-chain transaction when needing cross-chain, and the to-be-cross-chain evidence is locked in the contract.
A communication module: after the certification-passing locking is confirmed, a communication application is sent to the cross-entering block chain, and related transaction information is transmitted to the verification module.
A verification module: in the verification module, there are state snapshots generated by recursive zero knowledge proofs, new state generation will include correctness proofs generated by all old state, and new state proof snapshots are generated to check whether a cross-chain transaction locked at a specific contract address exists in the cross-chain locking module (each proof contains the validity of all previous calculations, the size of the proof is fixed, and the number of recursions has no relation). If the verification is passed, releasing the relevant permit on the corresponding cross-in chain, and updating the state of the chain account book; if the verification is not passed, the communication is closed, and the certificate of the locking module is returned.
In the verification module, the state transition is proved based on a zero-knowledge proof technology, when the state 1 reaches the state 2 after the block is out, a transition proof P1 from the state 1 to the state 2 is formed, so that the proof based on the single transition is given, and P1, P2, P3 and P4 … are sequentially interpolated; also included are combined state proofs, where when state 3 is reached, there is P1 to demonstrate a transition between state 1 and state 2, P2 to demonstrate a transition between state 2 to state 3, and P1 and P2 can combine to generate Q1, thereby forming a proof of a state 1 to state 3 transition. In the verification, when communication is initiated by crossing the outgoing chain, the crossing chain only needs to combine Qn (n corresponds to the state of the current transaction) formed by recursive zero knowledge proofs, namely all past history proofs, and request the combination of the related Mercury tree root path of the current state from any full node of the crossing chain, so that whether the transaction exists can be verified, the occupied space of the self zero knowledge proof and the Mercury tree root path is small, and the operation is simple and convenient, so that the authenticity and the effectiveness of the related crossing chain transaction can be rapidly checked by crossing the incoming chain, and the user experience is further improved.
A generation module: the on-chain state of the out-of-chain and in-chain will be updated according to the verified transaction information. And generating a corresponding pass-certificate at the address on the chain of the cross-in chain provided by the user.
The embodiment of the invention provides a method, a system and a medium for value communication transmission among block chains, which are used for checking authenticity and effectiveness of cross-chain transactions, realizing value transfer among chains and promoting synergy among the chains based on recursive zero knowledge proof.
It is well within the knowledge of a person skilled in the art to implement the system and its various devices, modules, units provided by the present invention in a purely computer readable program code means that the same functionality can be implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and the devices, modules and units thereof provided by the present invention can be CDC a hardware component, and the devices, modules and units included in the system for implementing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A method for communicating value between blockchains, comprising:
locking: for a contract address on a chain, calling the contract to generate related cross-chain transaction when the cross-chain is needed, and locking a to-be-cross-chain certificate in the contract;
communication steps are as follows: after confirming the certification locking, sending a communication application to the cross-entering block chain, and transmitting related transaction information to a verification step;
a verification step: checking whether a cross-chain transaction locked at a specific contract address exists in the cross-chain out-chain locking step;
a generation step: and updating the chain states of the cross-out chain and the cross-in chain according to the verified transaction information, and generating corresponding certificates on the addresses of the cross-in chain.
2. The method of claim 1, wherein the step of verifying comprises: in the verification step, there is a state snapshot generated using recursive zero knowledge proof, and a new state generation will contain all the correctness proofs generated by the old state generation to generate a new state proof snapshot for checking whether a cross-chain transaction locked to a specific contract address exists in the cross-chain locking step.
3. The method of claim 2, wherein each certificate contains all previously calculated validity, the certificate is fixed in size, and is independent of recursion times.
4. The method of claim 2, wherein if the verification is successful, releasing the corresponding pass-in certificate on the corresponding incoming chain, and updating the chain ledger status;
if the verification is not passed, the communication is closed, and the certificate of the locking step is returned.
5. A system for communicating value between block chains, comprising:
a locking module: calling the contract to generate related cross-link transaction when the cross-link is needed for the contract address on the link, and locking the communication certificate to be cross-linked in the contract;
a communication module: after confirming the locking of the certificate, sending a communication application to the cross-entering block chain, and transmitting related transaction information into a verification module;
a verification module: checking whether a cross-chain transaction locked at a specific contract address exists in a cross-chain locking module;
a generation module: and updating the chain states of the cross-out chain and the cross-in chain according to the verified transaction information, and generating corresponding certificates on the addresses of the cross-in chain.
6. The system according to claim 5, wherein the authentication module comprises: in the verification module, a state snapshot generated by adopting recursive zero knowledge proof exists, a new state generation contains all correctness proofs generated by old state generation, and a new state proof snapshot is generated to check whether a cross-chain transaction locked at a specific contract address exists in the cross-chain locking module.
7. The system according to claim 6, wherein each certificate contains the validity of all previous calculations, the certificate is fixed in size, and is independent of the number of recursions.
8. The system according to claim 6, wherein if the verification is passed, releasing the corresponding permit on the corresponding inbound chain, and updating the chain ledger status;
if the verification is not passed, the communication is closed, and the certificate of the locking module is returned.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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