CN107767267B - Virtual resource transfer method and device - Google Patents
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- CN107767267B CN107767267B CN201710997281.6A CN201710997281A CN107767267B CN 107767267 B CN107767267 B CN 107767267B CN 201710997281 A CN201710997281 A CN 201710997281A CN 107767267 B CN107767267 B CN 107767267B
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Abstract
The invention provides a virtual resource transfer method, which is applied to a decentralized system comprising a block chain side chain and a main chain, wherein the main chain is registered with a unique identifier of an interface between the side chain and the main chain; when the first virtual resource is transferred from the main chain to the side chain, the first virtual resource sender issues content comprising account information of the first virtual resource sender on the main chain, the unique identifier of the interface, account information of the virtual resource receiver on the side chain and the first virtual resource transfer amount to the block chain main chain. In the invention, the unique identification of the interface between the side chain and the main chain is registered on the main chain, and the information of the side chain identity or the account address is established, so that a bridge is established for transferring the virtual resources from any account of the main chain to any account of the side chain.
Description
Technical Field
The present invention relates to the field of information technology, and in particular, to a method and an apparatus for virtual resource transfer in a block chain based decentralized system.
Background
The side chain is a special blockchain that typically uses a technique called "SPV wedging" to effect asset transfers with other blockchains, which enables users to use new crypto-currency systems with existing assets. By inheriting and multiplexing a strong block chain main chain (such as a bitcoin block chain), the problems of the liquidity shortage, the market fluctuation and the like of new currency are also avoided; and since the side chain is a separate, isolated system, the only serious problem that occurs in the side chain will be to affect the side chain itself, which greatly reduces the risk and cost of innovation.
However, most of the existing decentralized systems comprising block chain main chains and side chains can only complete the unidirectional transfer of assets from the main chains to the side chains; moreover, since the asset transfer process on the side chain is not monitored by the main chain, fraud of asset transfer is very easy to generate on the side chain, and particularly, double-flower transaction is very easy to generate on the side chain when the side chain rolls back.
Disclosure of Invention
In view of the above-mentioned problems, the present invention provides a virtual resource transfer method, which is applied to a decentralized system comprising a block chain side chain and a main chain, wherein a unique identifier of an interface between the side chain and the main chain is registered on the main chain; when the first virtual resource is transferred from the main chain to the side chain, the first virtual resource sender issues content comprising account information of the first virtual resource sender on the main chain, the unique identifier of the interface, account information of the virtual resource receiver on the side chain and the first virtual resource transfer amount to the block chain main chain.
When the second virtual resource is transferred from the side chain to the main chain, the second virtual resource sender firstly issues content containing account information of the second virtual resource sender on the side chain, the unique identifier of the interface and the transfer amount of the second virtual resource to the side chain; and the interface manager sends the content containing the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain and the transfer amount of the second virtual resource to the block chain main chain.
Preferably, the unique identifier of the interface comprises an address of the interface between the side chain and the main chain on the main chain.
Preferably, the unique identifier of the interface includes unique identity data obtained by registering the side chain on the main chain.
More preferably, the unique identity data of the sidechain is a decentralized domain name or decentralized domain name redirection data obtained by registering the sidechain on the main chain.
Preferably, the interface includes a plurality of account information within an address on the main chain.
Preferably, the plurality of account information includes account information of the interface on the main chain and account information of a side chain connected with the interface on the main chain.
Preferably, the first virtual resource and the second virtual resource are different virtual resource types.
Preferably, when the interface manager sends the content including the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain, and the transfer amount of the second virtual resource to the block chain main chain, the transfer amount of the second virtual resource needs to be converted into the transfer amount of the first virtual resource according to the exchange ratio of the first virtual resource to the second virtual resource.
The invention also provides a virtual resource transfer device, which is applied to a decentralized system comprising a block chain side chain and a main chain, and is characterized in that the device comprises:
the first registration module is used for registering unique identification of an interface between a side chain and a main chain on the main chain;
the first issuing module is used for transferring the first virtual resource from the main chain to the side chain, and comprises a first virtual resource sender issuing content comprising account information of the first virtual resource sender on the main chain, the unique identifier of the interface, account information of the virtual resource receiver on the side chain and the transfer amount of the first virtual resource to the block chain main chain.
More preferably, the apparatus further comprises:
the second issuing module is used for transferring the second virtual resource from the side chain to an interface between the side chain and the main chain, and comprises a second virtual resource sender firstly issuing content comprising account information of the second virtual resource sender on the side chain, the unique identifier of the interface and the transfer amount of the second virtual resource to the side chain;
and the third issuing module is used for transferring the second virtual resource from the interface between the side chain and the main chain to the receiver on the main chain, and comprises the interface manager issuing the content containing the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain and the transfer amount of the second virtual resource to the block chain main chain.
In the invention, the unique identification of the interface between the side chain and the main chain is registered on the main chain, and the information of the side chain identity or the account address is established, so that a bridge is established for transferring virtual resources from any account of the main chain to any account of the side chain; corresponding accounts are set for a plurality of side chains and the interfaces under the interfaces, and account balances of all the side chains can be displayed on a main chain of the block chain, so that a monitoring channel is provided for preventing virtual asset transfer fraud or double-flower transaction on the side chains; the virtual resources transferred from any account on the side chain to the main chain are managed by setting the identity role of the interface manager, and the interface manager can verify the transfer transaction on the side chain and also verify the transfer transaction on the main chain, so that the interface manager can perform the bridge function of assisting the virtual resources to transfer from the side chain to the main chain.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a block chain main chain and side chain interface diagram illustrating virtual resource inter-transfer, according to an embodiment of the present invention;
FIG. 2 is a block chain main chain and side chain interface diagram illustrating virtual resource inter-transfer according to another embodiment of the present invention;
FIG. 3 is a logic diagram of the present invention for transferring virtual resources from a blockchain backbone to a sidelink;
FIG. 4 is a logic diagram of the present invention for transferring virtual resources from a blockchain sidelink to a backbone;
fig. 5 is a logic block diagram of a device for transferring virtual resources according to an embodiment of the present invention.
Detailed Description
In order to more specifically describe the present invention, the following detailed description is provided for the technical solution of the present invention with reference to the accompanying drawings and the specific embodiments.
In order to solve the problem of bidirectional transfer of assets between main chain and side chain and avoid transaction fraud or double payment on the side chain, the invention provides a method and a device for transferring assets between block chains. Fig. 1 and fig. 2 illustrate embodiments of interfaces between a main chain and a side chain of a block chain where virtual resource inter-transfer can occur, respectively. The interface is a direct connection point of a main chain and a side chain, and the main chain and the side chain transmit information or transfer virtual resources through the interface; the interface can be connected with only one side chain or a plurality of side chains. Fig. 1 illustrates a schematic interface diagram in which only one side chain is connected, and the interface has a unique identification ID on the main chain, such as a public key of an interface account, or an interface address, or a unique identity of the side chain to which the interface is connected (when the interface is connected with only one side chain). Fig. 2 illustrates an interface schematic diagram connecting a plurality of side chains, where the unique identifier ID of the interface may be, for example, a public key of an interface account or an interface address, each side chain should register a unique identifier for identifying its own identity on the main chain, for example, the identifier ID of the side chain 1 is ceying, and the identifier ID of the side chain 2 is join.
The above-mentioned method for acquiring the side chain ID may be acquired by issuing registration content on the block chain main chain. Similar to issuing transactions in a fixed format on a blockchain, a blockchain main chain designer can construct format contents used for registering a side chain identity on the blockchain, and a node user of the main chain performs filling, electronic signature and submission to a blockchain system, and the format contents are propagated in a network from generation to transmission, and finally recorded to the blockchain main chain through workload certification and whole network node verification. The block chain main chain can authorize a user with a trusted public key identity to perform the side chain identity registration operation by constructing a trusted public key list, and the trusted public key list can be constructed in various ways, for example, a trusted public key white list is added in the block chain main chain bottom layer design, and after a user fills registration information and electronically signs, whether a public key used for signing the electronic signature is listed in the trusted white list is judged; an authorized public key (such as the public key of the CA certification authority or the public key of the operator of the blockchain backbone) may also be added to the blockchain backbone, and the public key or the public key certificate with the side chain identity registration qualification is signed and authenticated by the authorized public key.
The format of the above-mentioned side chain id can be, for example, a decentralized domain name registered in a blockchain, and the decentralized domain name or the data pointed by the decentralized domain name is used to identify the identity of the corresponding side chain. The generation mode of the decentralized domain addressing is that a user firstly applies for a domain name on a block chain main chain, for example, domain name registration information of the block chain is issued, the domain name is registered according to a protocol format, the decentralized domain name is usually unique in the block chain, for example, a domain name is registered as ceying, the domain name information is generated, propagated in a network, verified through workload and a whole network node, and finally recorded in the block chain main chain so as to be included, the user can issue domain name redirection to the block chain main chain, namely, issue other information to which the domain name is associated, such as side chain identity identification information A. Subsequently, the user finally points to the side-chain identification information a through the domain name eying to obtain the side-chain identification information a therefrom. Because the decentralized domain name has uniqueness, the identity of the side chain is uniquely identified by using the decentralized domain name or the data information pointed by the decentralized domain name redirection in the block chain main chain.
In order to verify whether the virtual resource transferred from the side chain is a valid transaction on the main chain, the balance of several accounts can be maintained and recorded in the interface between the main chain and the side chain, such as the account balance of an interface address, the account balance of the side chain 1 connected with the interface, and the account balance of the side chain 2 connected with the interface. Thus, if the number of virtual assets transferred from the side chain to the main chain is greater than (or equal to) the account balance recorded at the interface by the side chain, the main chain can directly judge that the transaction content is invalid and is not included.
FIG. 3 is a logic diagram of the present invention for transferring virtual resources from a blockchain backbone to a sidelink; the account 1 on the main chain needs to transfer a certain amount of virtual resources 1 to the account 2 on the side chain, the account 1 only needs to issue one transaction content to the main chain to complete the account transfer operation, the transaction content comprises the address of the main chain account 1, the interface ID of the main chain and the side chain, the address 2 of the side chain account and the transfer amount of the virtual resources 1, and the owner of the account 1 can issue the transaction content to a transaction data cache region of the main chain after electronically signing the transaction content to wait for the main chain miner to record. Assuming that the interface address is 12345abcde, the ID of the side chain is ceying, the type and number of the virtual resources 1 are 1btc, and when the interface is connected to only one side chain, the content of the transaction includes:
"Address of backbone account 1;
12345abcde；
the address of side chain account 2;
1btc。”
or comprises the following steps:
"Address of backbone account 1;
ceying；
the address of side chain account 2;
1btc。”
when the interface is connected with a plurality of side chains, the content of the transaction comprises:
"Address of backbone account 1;
12345abcde；
Ceying；
the address of side chain account 2;
1btc。”
fig. 4 illustrates a logic diagram of the virtual resource transfer from the blockchain side chain to the main chain provided by the present invention, where an account 2 on the side chain needs to transfer a certain amount of virtual resource 2 to an account 1 on the side chain, and the transfer needs to be completed in two steps: firstly, the account 2 on the side chain publishes transaction contents on the side chain where the account is located, and the transaction contents comprise the address of the side chain account 2, the interface ID of the main chain and the side chain and the transfer quantity of the virtual resources 2; and after the verification of the transaction is completed, the interface manager needs to issue transaction contents on the main chain, wherein the transaction contents comprise the interface ID of the main chain and the side chain, the address of the main chain account 1 and the transfer quantity of the virtual resources 2, and after the transaction is verified and recorded by miners of the main chain, the transfer transaction is completed. Assuming that the interface address is 12345abcde, the identity ID of the side chain is ceying, and the type and number of the virtual resources 2 are 1btc, when the interface is connected to only one side chain, the content issued by the account 2 on the side chain includes:
"address of side chain account 2;
12345abcde；
1btc。”
or comprises the following steps:
"address of side chain account 2;
ceying；
1btc。”
after the transaction is verified on the side chain, the transaction contents which need to be issued on the main chain by the interface manager include:
“12345abcde；
the address of the backbone account 1;
1btc。”
or comprises the following steps:
“ceying；
the address of the backbone account 1;
1btc。”
when the interface is connected with a plurality of side chains, the content to be issued by the account 2 on the side chain shipping includes:
"address of side chain account 2;
12345abcde；
ceying
1btc。”
after the transaction is verified on the side chain validating, the transaction contents which need to be issued on the main chain by the interface manager include:
“ceying；
12345abcde；
the address of the backbone account 1;
1btc。”
it is noted that the types of virtual resource 1 and virtual resource 2 may be the same or different. Usually, only one virtual resource form can be communicated on the main chain, for example, only bitcoin can be communicated on the bitcoin block chain, the side chain is compatible with the resource form of the main chain and has other virtual resource forms, at this time, when the interface manager issues the virtual resource transferred from the side chain to the main chain, the interface manager should perform corresponding exchange according to the conversion exchange rate of the virtual resource 1 and the virtual resource 2, and issue the virtual resource 2 of a corresponding quantity to the main chain block chain after exchanging the virtual resource 1 of a corresponding quantity.
The "interface manager" described in the present invention is not necessarily an actual human manager, but may be a computer program that performs a corresponding management function (e.g., account balance inquiry, electronic signature of transaction contents issued to the main chain, etc.).
In order to reduce the fraud of the virtual resource transfer in the sideline, all transaction information in the main chain should be synchronized in the sideline to prevent the number of virtual resources circulating in the sideline from being larger than the number of virtual resources transferred in the main chain.
Based on the same inventive concept, the present invention further provides a virtual resource transfer apparatus 50, which is applied to a decentralized system including a block chain side chain and a main chain, as shown in fig. 5, the apparatus includes:
a first registration module 501, configured to register a unique identifier of an interface between a side chain and a main chain on the main chain;
the first publishing module 502, configured to transfer the first virtual resource from the main chain to the side chain, includes the first virtual resource sender publishing contents including account information of the first virtual resource sender on the main chain, the unique identifier of the interface, account information of the virtual resource receiver on the side chain, and the first virtual resource transfer amount to the blockchain main chain.
More preferably, the apparatus further comprises:
a second publishing module 503, configured to transfer the second virtual resource from the side chain to an interface between the side chain and the main chain, where the second virtual resource sender first publishes, to the side chain, content including account information of the second virtual resource sender on the side chain, a unique identifier of the interface, and a transfer amount of the second virtual resource;
a third publishing module 504, configured to transfer the second virtual resource from the interface between the side chain and the main chain to the recipient on the main chain, including the interface manager sending the block chain main chain with the content including the unique identifier of the interface, the account information of the second virtual resource recipient on the main chain, and the transfer amount of the second virtual resource.
In addition, some of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application through the operation of the computer. Program instructions which invoke the methods of the present application may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the present application comprises a device as shown in fig. 4, which comprises a memory 810 for storing computer program instructions and a processor 820 for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the device to perform a method and/or a solution according to the preceding embodiments.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, implemented using Application Specific Integrated Circuits (ASICs), general purpose computers or any other similar hardware devices. In one embodiment, the software programs of the present application may be executed by a processor to implement the above steps or functions. Likewise, the software programs (including associated data structures) of the present application may be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Additionally, some of the steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (8)
1. A virtual resource transfer method is applied to a decentralized system comprising a block chain side chain and a main chain, and is characterized in that the side chain synchronizes all transaction information on the main chain; the main chain is registered with a unique identifier of an interface between the side chain and the main chain;
when a first virtual resource is transferred from the main chain to the side chain, a first virtual resource sender issues content comprising account information of the first virtual resource sender on the main chain, a unique identifier of the interface, account information of the virtual resource receiver on the side chain and the first virtual resource transfer amount to the block chain main chain;
when the second virtual resource is transferred from the side chain to the main chain, the second virtual resource sender firstly issues content containing account information of the second virtual resource sender on the side chain, the unique identifier of the interface and the transfer amount of the second virtual resource to the side chain; and the interface manager sends the content containing the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain and the transfer amount of the second virtual resource to the block chain main chain.
2. The virtual resource transfer method of claim 1 wherein the unique identification of the interface comprises an address on the backbone of the interface between the sidechain and the backbone.
3. The virtual resource transfer method according to claim 1, wherein the unique identifier of the interface comprises unique identity data obtained by registering the side chain on the main chain.
4. The virtual resource transfer method of claim 3 wherein the unique identity data of the sidechain is a decentralized domain name or decentralized domain name redirection data obtained by registering the sidechain on the main chain.
5. The virtual resource transfer method according to claim 2, wherein the interface includes a plurality of account information in an address on the main chain, and the plurality of account information includes account information on the main chain of the interface and account information on the main chain of a side chain connected to the interface.
6. The method of claim 1, wherein the first virtual resource and the second virtual resource are different virtual resource types.
7. The method as claimed in claim 6, wherein when the interface manager sends the content including the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain and the transfer amount of the second virtual resource to the block chain main chain, the transfer amount of the second virtual resource needs to be converted into the transfer amount of the first virtual resource according to the exchange ratio of the first virtual resource and the second virtual resource.
8. A virtual resource transfer device is applied to a decentralized system comprising a block chain side chain and a main chain, and is characterized in that the side chain synchronizes all transaction information on the main chain; the device comprises:
the first registration module is used for registering unique identification of an interface between a side chain and a main chain on the main chain;
the first publishing module is used for transferring the first virtual resource from the main chain to the side chain, and comprises a first virtual resource sender publishing contents comprising account information of the first virtual resource sender on the main chain, a unique identifier of the interface, account information of the virtual resource receiver on the side chain and the first virtual resource transfer amount to the block chain main chain;
the second issuing module is used for transferring the second virtual resource from the side chain to an interface between the side chain and the main chain, and comprises a second virtual resource sender firstly issuing content comprising account information of the second virtual resource sender on the side chain, the unique identifier of the interface and the transfer amount of the second virtual resource to the side chain;
and the third issuing module is used for transferring the second virtual resource from the interface between the side chain and the main chain to the receiver on the main chain, and comprises the interface manager issuing the content containing the unique identifier of the interface, the account information of the second virtual resource receiver on the main chain and the transfer amount of the second virtual resource to the block chain main chain.
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| CN109493015A (en) * | 2018-10-18 | 2019-03-19 | 杭州复杂美科技有限公司 | A kind of assets transfer method, equipment and storage medium |
| CN109598601A (en) * | 2018-12-06 | 2019-04-09 | 北京瑞卓喜投科技发展有限公司 | Account book monitoring method and account book monitoring system based on block chain |
| CN109847363A (en) * | 2019-02-02 | 2019-06-07 | 立旃（上海）科技有限公司 | Game resource sharing means and method based on block chain |
| CN110766405B (en) * | 2019-03-08 | 2021-07-30 | 腾讯科技（深圳）有限公司 | Information processing method in digital asset certificate inheritance transfer and related device |
| CN112988751A (en) * | 2019-04-22 | 2021-06-18 | 网易（杭州）网络有限公司 | Timing task scheduling method and device based on block chain |
| CN110135989A (en) * | 2019-04-26 | 2019-08-16 | 深圳市元征科技股份有限公司 | A kind of virtual resource transfer method and block chain node device |
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| CN110928677B (en) * | 2019-09-30 | 2022-09-06 | 咪咕文化科技有限公司 | Virtual resource calculation method and device based on block chain, electronic equipment and storage medium |
| JP2022553946A (en) * | 2019-11-08 | 2022-12-27 | アルゴランド，インコーポレイテッド | Conducting transactions using private and public blockchains |
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