CN110135993B - Method, equipment and storage medium for adapting UTXO model to intelligent contract account model - Google Patents
Method, equipment and storage medium for adapting UTXO model to intelligent contract account model Download PDFInfo
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- CN110135993B CN110135993B CN201910414183.4A CN201910414183A CN110135993B CN 110135993 B CN110135993 B CN 110135993B CN 201910414183 A CN201910414183 A CN 201910414183A CN 110135993 B CN110135993 B CN 110135993B
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Abstract
The invention discloses a method, equipment and a storage medium for adapting a UTXO model to an intelligent contract account model, wherein the method comprises the following steps: creating a virtual account: the virtual account is an EOS model account generated according to a host key pair of the UTXO account and a permission key pair of the UTXO account, the virtual account comprises an account name, a permission and a permission public key which can be recognized by a human, the account name of the virtual account is bound with a public key of the host key pair of the UTXO account, and the permission public key of the virtual account is generated by importing the public key of the permission key pair of the UTXO account; the virtual account calls an intelligent contract: the method comprises the steps that the authority name used by the current operation of a virtual account and a private key signature calling contract name corresponding to the authority used by the current operation, the action name and the action parameter of a contract are used to complete calling of an intelligent contract; transfer between the UTXO account and the virtual account: a standard transfer transaction is performed between the UTXO account and the virtual account. The invention enables the UTXO model to be adaptive to the EOS model account intelligent contract platform.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a method, equipment and a storage medium for adapting a UTXO model to an intelligent contract account model.
Background
The bitcoin is born in 2009 and is the first blockchain item in the world, and the first encrypted digital currency is realized based on the blockchain technology; it expresses the circulation of digital assets between different accounts through the UTXO model. Thereafter, a series of reference bitcoins are introduced, and digital currency items based on the UTXO model, such as darcey coins, quantum chains, SAFE, etc., are collectively referred to as a bitcoin series.
The birth of Etheng in 2015 is the first intelligent contract platform realized based on the block chain technology in the world; it expresses the circulation of digital assets between different accounts through an account balance model. The account model of the etherhouse is a superset of bitcoin, and the extensions support the relevant attributes of the intelligent contracts.
EOS is born in 2018 and is the first high-performance intelligent contract platform with a brand-new technical architecture in the world; the method is the same as the Etheng, and expresses the circulation of digital assets among different accounts through an account balance model; but compared with the EtherFang, the expansion supports the related attributes of the account name and the account authority.
In summary, the EOS account hierarchy can be regarded as a superset of ETH (Ethernet money), and the ETH account hierarchy can be regarded as a superset of Biyom series account hierarchy.
But the existing UTXO model cannot adapt to the EOS model account intelligence contract platform.
Therefore, the prior art has yet to be developed.
Disclosure of Invention
In view of the foregoing shortcomings in the prior art, an object of the present invention is to provide a method, an apparatus and a storage medium for adapting a UTXO model to an intelligent contract account model, which are intended to enable the UTXO model to be adapted to an EOS model account intelligent contract platform.
In order to realize the purpose, the invention adopts the following technical scheme:
a method for adapting a UTXO model to a smart contract account model, comprising the steps of:
s10, creating a virtual account: the virtual account is an EOS model account generated according to a host key pair of the UTXO account and a permission key pair of the UTXO account, the virtual account comprises an account name, a permission and a permission public key which can be recognized by a human, the account name of the virtual account is bound with a public key of the host key pair of the UTXO account, and the permission public key of the virtual account is generated by importing the public key of the permission key pair of the UTXO account;
s20, the virtual account calls the intelligent contract: the method comprises the steps that the authority name used by the current operation of a virtual account and a private key signature calling contract name corresponding to the authority used by the current operation, the action name and the action parameter of a contract are used to complete calling of an intelligent contract;
and S30, transferring between the UTXO account and the virtual account: a transfer transaction is performed between the UTXO account and the virtual account.
The authority of the virtual account comprises an authority name and an authority threshold, and the authority public key of the virtual account also comprises a public key weight corresponding to the authority public key.
After the virtual account is created, modifying the virtual account authority, specifically including:
acquiring the authority name used by the current operation, the private key signature corresponding to the authority used by the current operation and the parent authority name of the authority of the virtual account to be modified currently, and setting the authority threshold corresponding to the authority name of the virtual account to be modified currently.
Wherein the creating a virtual account comprises:
s11, creating a host key pair of the UTXO model account;
s12, creating an authority key pair of the UTXO model account;
s13, creating an account name recognizable to human beings;
and S14, generating a virtual account of the EOS model according to the account name, the public key of the host key pair and the public key of the authority key pair, wherein the account name which can be identified by human beings is used as the name of the virtual account, the public key of the host key pair is bound with the name of the virtual account, and the public key of the authority key pair is imported into the authority public key of the virtual account.
The virtual account comprises an Owner authority and an Active authority, and authority public keys of the Owner authority and the Active authority respectively use public keys of an authority key pair of the two UTXO model accounts.
And the transaction of the digital asset is transferred to the virtual account, and the public key signature field output by the transaction constantly generates a locking script by using the UTXO model account associated with the virtual account.
And in the transaction of virtual account spending, the signature field of the public key output by the transaction carries the signature information of the current latest authority public key.
And if the authority is successfully modified, updating the record information of the current latest authority public key.
The present invention also proposes an apparatus, wherein the apparatus comprises a memory, a processor and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the above-mentioned method for adapting the UTXO model to the smart contract account model when executing the computer program.
The present invention also proposes a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, which, when executed, implements the above-mentioned method for adapting a UTXO model to a smart contract account model.
The invention relates to a method, equipment and a storage medium for adapting a UTXO model to an intelligent contract account model, which are characterized in that a virtual account of an EOS model is created on the basis of the UTXO model account, the virtual account comprises an account name, authority and an authority public key which can be recognized by a human, wherein the account name of the virtual account is bound with a public key of a host key pair of the UTXO account, and the authority public key of the virtual account is generated by importing the public key of the authority key pair of the UTXO account. In this way, the UTXO model account is used as a host to generate the virtual account of the EOS model, so that the UTXO model account and the EOS account are bound, and the intercommunication between the UTXO model account and the EOS model account intelligent contract platform is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a first embodiment of a method for adapting a UTXO model to an intelligent contract account model according to the present invention;
FIG. 2 is a schematic diagram of the composition of a virtual account according to the present invention;
FIG. 3 is a schematic flow chart of a second embodiment of a method for adapting a UTXO model to an intelligent contract account model according to the present invention;
FIG. 4 is a flowchart illustrating a process of creating a virtual account according to the present 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.
Referring to fig. 1, fig. 1 is a flowchart of a method for adapting a UTXO model to an intelligent contract account model according to the present invention, including the following steps:
s10, creating a virtual account: the virtual account is an EOS model account generated according to a host key pair of the UTXO account and a permission key pair of the UTXO account, the virtual account comprises an account name, a permission and a permission public key which can be recognized by a human, the account name of the virtual account is bound with a public key of the host key pair of the UTXO account, and the permission public key of the virtual account is generated by importing the public key of the permission key pair of the UTXO account.
The account name of the virtual account is different from the UTXO account address and the etherhouse account address, and may be created using characters that are easily recognized by humans.
The virtual account is embodied as a human-readable identifier, relying on a fixed UTXO account on the blockchain, through which the balance of the current account can be counted.
Specifically, as shown in fig. 2, in the present invention, the authority of the virtual account includes an authority name and an authority threshold, and the authority public key of the virtual account further includes a public key weight corresponding to the authority public key. The authority of the virtual account determines the operation level of the current operation, such as the owner authority capable of managing and setting the account or the user authority not capable of setting the account and only responsible for daily account transfer and other operations. The 1 authority of the embodiment of the invention can have n authority public keys, and the 1 authority public key can participate in the n authorities at the same time.
S20, the virtual account calls the intelligent contract: and using the authority name used by the current operation of the virtual account and the private key signature corresponding to the authority used by the current operation to call the contract name, the action name and the action parameter of the contract to complete the call of the intelligent contract.
The virtual account of the embodiment of the invention can call the intelligent contract, execute the contract code and adapt to the intelligent contract platform.
And S30, transferring between the UTXO account and the virtual account: a transfer transaction is performed between the UTXO account and the virtual account.
The transferring between the UTXO account and the virtual account may include transferring the UTXO account to the virtual account or transferring the virtual account to the UTXO account. The transfer process between the two is carried out using standard transfer transaction flow.
In the invention, because the UTXO account can only correspond to one Ethernet workshop account, the virtual account can also only correspond to one Ethernet workshop account, the UTXO account is taken as a host, and an ETH-format account address is generated by a private key of the UTXO account, so that the intercommunication with an ETH account system is realized, and the condition of cross-chain fusion of the UTXO account and the Ethernet workshop block chain is provided.
Meanwhile, the virtual account of the invention takes the UTXO account as a host, binds the EOS account name, and simultaneously each public key bound by the authority public key of the EOS account is derived from the UTXO account address, thereby realizing the intercommunication of the UTXO account and the EOS account system. Therefore, the invention realizes the intercommunication of the UTXO model account with the Ether shop and the EOS model intelligent contract platform.
The authority of the virtual account can be dynamically adjusted, and the authority public key can be dynamically replaced.
As shown in fig. 3, after creating the virtual account, the present invention further includes:
step S40, modifying the virtual account permission, wherein modifying the virtual account permission specifically includes:
acquiring the authority name used by the current operation, the private key signature corresponding to the authority used by the current operation and the parent authority name of the authority of the virtual account to be modified currently, and setting the authority threshold corresponding to the authority name of the virtual account to be modified currently. Modifying the virtual account permissions allows the permissions of the virtual account to be dynamically adjusted.
As shown in FIG. 4, the present invention creates a virtual account comprising:
s11, creating a host key pair of the UTXO model account;
s12, creating an authority key pair of the UTXO model account;
s13, creating an account name recognizable to human beings;
and S14, generating a virtual account of the EOS model according to the account name, the public key of the host key pair and the public key of the authority key pair, wherein the account name which can be identified by human beings is used as the name of the virtual account, the public key of the host key pair is bound with the name of the virtual account, and the public key of the authority key pair is imported into the authority public key of the virtual account.
And the public key imported by the authority management module of the virtual account directly uses the public key of the UTXO account as the authority public key and is fused with the UTXO blockchain wallet.
Therefore, the virtual account adopts an EOS model account, the account name in the EOS model account is bound with the public key of the host key pair of the UTXO model account, and the authority public key in the EOS model account is imported by the public key of the authority key pair of the UTXO model account, so that the UTXO model account is adapted to an EOS model intelligent contract platform, and the intercommunication between the UTXO model account and the EOS model account is realized.
With reference to fig. 2, the virtual account of the present invention includes an Owner authority and an Active authority, and authority public keys of the Owner authority and the Active authority respectively use public keys of an authority key pair of the two UTXO model accounts.
Preferably, the invention transfers the transaction of the digital asset to the virtual account, and the public key signature field output by the transaction constantly generates the locking script by using the UTXO model account associated with the virtual account.
Namely, in the embodiment of the invention, the transformation of the digital assets is transferred into the virtual account, and the script PubKey field of VOUT constantly uses the UTXO account supported by the virtual account to generate the locking script, which is irrelevant to the public key of the virtual account authority.
Preferably, in the transaction of virtual account spending, the signature field of the public key output by the transaction carries the signature information of the current latest authority public key.
Namely, the invention implements the Transaction of the virtual account UTXO of the spending expense, and the script PubKey field of VOUT carries the signature information of the current latest authority public key.
Preferably, in the virtual account modification permission transaction, the signature information of the current latest permission public key is carried in the public key signature field output by the transaction, and if the permission modification is successful, the record information of the current latest permission public key is updated.
Namely, the script pubkey field of the virtual account modification authority of the embodiment of the invention carries the signature information of the current latest authority public key. And if the authority is successfully modified, updating the record information of the current latest authority public key.
When the witness verifies the transaction, the witness needs to use the common account to terminate the public key set for the last time before the current transaction.
The specific scenario and UTXO chain of the embodiment of the present invention are described as follows:
1) creating a virtual account, and referring to table 1 and table 2:
TABLE 1
TABLE 2
The assumed scene is as follows: a virtual account B is created based on UTXO account a.
"OP _ CREATE _ vaccuount." expand to "OP _ CREATE _ vaccuount < Account > < Owner _ key > < Active _ key >": account name of < Account > B, < Owner _ Key > is the Owner public Key represented by the UTXO Account, and < Active _ Key > is the Active public Key represented by the UTXO Account.
2) Modify the virtual account, refer to tables 3 and 4:
TABLE 3
TABLE 4
Once created, the virtual account cannot be deleted, the account name cannot be modified, and only the permission part can be updated.
The assumed scene is as follows: the virtual account B modifies the self authority; the a address is the UTXO address of the bound virtual account B.
"OP _ SET _ vaccuount." expand to "OP _ SET _ vaccuount < Permission > < Authority > < Parent > < cutoff Permission > < Permission >": < Permission > is a name of Authority, < Authority > is a detail of Authority (json string, formatted as EOS), < element > is a Parent name of < Permission >, < accuratepermission > is a name of Authority used in the current operation, and < permissions sign > is a signature of a private key corresponding to the Authority used in the current operation. The witness verifies both the "a private key signature" of ScriptSig and the "< PermissionSign >" of ScriptPubKey.
3) And the virtual account calls an intelligent contract, and refers to a table 5 and a table 6:
TABLE 5
TABLE 6
In the EOS platform concept, each account may initiate a call to a contract, or in the C1 contract, the C2 contract through an api; each time a contract is invoked, the caller's account and permissions need to be provided.
The assumed scene is as follows: virtual account B invokes its own Action 1; the a address is the UTXO address of the bound virtual account B.
"OP _ PUSH _ ACTION." expand to "OP _ PUSH _ ACTION < contact > < ACTION arms > < cutoff permission > < permission >": < Contract > is the account name of the called Contract, < Action > is the Action name of the called Contract, < ActionArgs > is the parameter that calls < Action >, and < ExcutorPermission > is as described above for the "modify virtual Account" scenario.
The UTXO chain just described represents the transaction that generated the entry call; for the tempered contracts, nesting and calling other contracts are completed in the EOS virtual machine, and the UTXO chain is not constructed.
4) And transferring accounts from the UTXO account to the virtual account, and referring to a table 7 and a table 8:
TABLE 7
TABLE 8
The assumed scene is as follows: the UTXO account U transfers money to the virtual account B; the a address is the UTXO address of the bound virtual account B.
The UTXO chain is the same as a standard transfer transaction, with the transfer from U to a. The virtual account transfers to the UTXO account, also following the scene type.
The present invention also proposes an apparatus comprising a memory, a processor and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the above-mentioned method for adapting a UTXO model to a smart contract account model when executing the computer program. Such as the method of steps S10-S30.
Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the asynchronous message processing terminal device.
The apparatus may include, but is not limited to, a processor, a memory. It will be appreciated by those skilled in the art that the above components are merely examples of a device and do not constitute a limitation on the device, and that more or fewer components than those described above may be included, or certain components may be combined, or different components may be included, e.g., the device may also include input output devices, network access devices, buses, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the device and that connects the various parts of the overall device using various interfaces and lines.
The memory may be used to store the computer programs and/or modules, and the processor may implement the various functions of the apparatus by running or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to usage (such as audio data, a phonebook, etc.), and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The present invention also proposes a computer-readable storage medium having stored therein a computer program which, when executed, implements the above-described method of adapting a UTXO model to a smart contract account model.
The integrated module/unit of the method for adapting the UTXO model to the smart contract account model of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function unit and sold or used as a stand-alone product. The specific implementation manner of the computer-readable storage medium of the present invention is substantially the same as that of each embodiment of the method for adapting to the intelligent contract account model by using the UTXO model, and will not be described herein again.
It should be noted that the above-described embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for adapting a UTXO model to a smart contract account model, comprising the steps of:
s10, creating a virtual account: the virtual account is an EOS model account generated according to a host key pair of the UTXO account and a permission key pair of the UTXO account, the virtual account comprises an account name, a permission and a permission public key which can be recognized by a human, the account name of the virtual account is bound with a public key of the host key pair of the UTXO account, and the permission public key of the virtual account is generated by importing the public key of the permission key pair of the UTXO account;
s20, the virtual account calls the intelligent contract: the method comprises the steps that the authority name used by the current operation of a virtual account and a private key signature calling contract name corresponding to the authority used by the current operation, the action name and the action parameter of a contract are used to complete calling of an intelligent contract;
and S30, transferring between the UTXO account and the virtual account: a transfer transaction is performed between the UTXO account and the virtual account.
2. The method for adapting the UTXO model to the smart contract account model according to claim 1, wherein the rights of the virtual account include a rights name and a rights threshold, and the rights public key of the virtual account further includes a public key weight corresponding to the rights public key.
3. The method for adapting an UTXO model to an intelligent contract account model according to claim 2, further comprising modifying the virtual account rights after creating the virtual account, specifically comprising:
acquiring the authority name used by the current operation, the private key signature corresponding to the authority used by the current operation and the parent authority name of the authority of the virtual account to be modified currently, and setting the authority threshold corresponding to the authority name of the virtual account to be modified currently.
4. The method of UTXO model fitting a smart contract account model according to claim 1, wherein the creating a virtual account comprises:
s11, creating a host key pair of the UTXO model account;
s12, creating an authority key pair of the UTXO model account;
s13, creating an account name recognizable to human beings;
and S14, generating a virtual account of the EOS model according to the account name, the public key of the host key pair and the public key of the authority key pair, wherein the account name which can be identified by human beings is used as the name of the virtual account, the public key of the host key pair is bound with the name of the virtual account, and the public key of the authority key pair is imported into the authority public key of the virtual account.
5. The method for adapting the UTXO model to the smart contract account model according to claim 4, wherein the virtual account includes an Owner right and an Active right, and the right public keys of the Owner right and the Active right respectively use public keys of a right key pair of the two UTXO model accounts.
6. The method of UTXO model fitting a smart contract account model of claim 1, wherein a transaction of the digital asset is transferred to the virtual account, the public key signature field of the transaction output constantly generating a lock script using the UTXO model account associated with the virtual account.
7. The method of adapting a UTXO model to a smart contract account model of claim 1, wherein for transactions where the virtual account is spending, the public key signature field of the transaction output carries the signature information of the current latest rights public key.
8. The method of adapting a UTXO model to a smart contract account model as claimed in claim 1, wherein the virtual account modifies the transaction of the rights, and the public key signature field output by the transaction carries the signature information of the current latest rights public key, and if the rights are modified successfully, the record information of the current latest rights public key is updated.
9. An apparatus comprising a memory, a processor, and a computer program stored in the memory and configured to be executed by the processor, when executing the computer program, implementing a method of adapting a UTXO model to a smart contract account model as claimed in any one of claims 1 to 8.
10. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, which computer program, when executed, implements the method of UTXO model adapting a smart contract account model as claimed in any one of claims 1 to 8.
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| CN110517138A (en) * | 2019-08-20 | 2019-11-29 | 深圳市网心科技有限公司 | Intelligent contract processing method, device, computer equipment and storage medium |
| CN112740251A (en) * | 2019-12-31 | 2021-04-30 | 深圳市网心科技有限公司 | Block chain-based digital currency transaction method, device and system |
| CN111314295A (en) * | 2020-01-15 | 2020-06-19 | 厦门顺势共识信息科技有限公司 | Block chain account system implementation method with strong social attribute |
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