WO2020029930A1

WO2020029930A1 - Asset retrieval method, device, and storage medium

Info

Publication number: WO2020029930A1
Application number: PCT/CN2019/099335
Authority: WO
Inventors: 吴思进; 王志文
Original assignee: 杭州复杂美科技有限公司
Priority date: 2018-08-09
Filing date: 2019-08-06
Publication date: 2020-02-13
Also published as: CN109377358A

Abstract

Designed in the present invention is an asset retrieval method: first receiving asset retrieval request information signed and sent by a first client terminal of a backup account, the asset retrieval request information being written to a blockchain for a second client terminal of a main account to acquire the asset retrieval request information by means of synchronising the data of the blockchain; the backup account and the main account are pre-configured linked accounts; next, monitoring whether revocation retrieval request information signed and sent by the second client is received within a pre-configured timeout duration; and, if not, then transferring the assets held in the main account to the backup account on the basis of the asset retrieval request information; thus, a method for retrieving assets even if the user forgets a main account private key or a main account memorable word is provided.

Description

Asset recovery method, equipment and storage medium

Technical field

The invention relates to the technical field of blockchain, and relates to a method, a device and a storage medium for asset recovery.

Background technique

With the increasing application of blockchain technology, more and more transactions based on blockchain technology. Users usually place a small amount of assets in the secondary market for transactions, and the vast majority of assets are stored in blockchain wallets. A blockchain wallet has only a private key, and those who own the private key can deploy the area. All assets in the blockchain wallet.

Because the private key is a long string and is not readable, in order to facilitate the user to read and back up the private key, the private key is generated using a mnemonic word; the mnemonic word is usually composed of several English words or Chinese Words are organized in an order and usually appear once when a user creates a new wallet, and will never appear again later, so when creating a new wallet, users need to back up mnemonic words. Once they forget a mnemonic word, it is equivalent to losing it. All assets in the wallet.

In summary, there is currently a need to provide a method to retrieve assets in a blockchain wallet even if the mnemonic is forgotten.

Summary of the invention

In view of this, the present invention provides an asset recovery method that solves or partially solves the above problems.

In a first aspect, the present invention provides a method for asset recovery, including:

Receives the asset retrieval request information signed and sent by the first client of the backup account, and writes the asset retrieval request information to the blockchain for the second client of the master account to obtain asset retrieval by synchronizing the data of the blockchain Request information back; among them, the backup account and the main account are pre-configured associated accounts;

Monitoring whether a revocation request message signed and sent by the second client is received within a pre-configured timeout period:

If not, the assets managed by the master account are transferred to the backup account according to the asset recovery request information.

In a second aspect, the present invention also provides a method for asset recovery, including:

Synchronize the data of the blockchain to obtain asset retrieval request information; wherein the asset retrieval request information is signed by the first client of the backup account and sent to the first contract, and the first contract is written into the blockchain to back up the account Linked accounts for the master account;

Monitor whether a revocation instruction is received: Yes, generate the revocation request information signed by the master account and send it to the first contract within a pre-configured timeout period for the first contract to revoke the asset retrieval request based on the revocation request information Among them, the first contract is also configured to transfer the assets managed by the master account to the backup account according to the asset recovery request information when the revocation request information is not received within the timeout period.

In a third aspect, the present invention also provides a method for asset recovery, including:

Generate asset recovery request information signed by the backup account and send it to the first contract for the first contract to write the asset recovery request information to the blockchain for the second client of the main account to synchronize the data of the blockchain Obtain asset retrieval request information, and the first contract monitors whether a revocation retrieval request message signed and sent by the second client is received within a pre-configured timeout period: No, the main account is based on the asset retrieval request information The managed assets are transferred to the backup account; the backup account and the master account are pre-configured linked accounts.

According to a fourth aspect, the present invention further provides an apparatus, including one or more processors and a memory, where the memory contains instructions executable by the one or more processors to cause the one or more processors to perform operations according to the present invention. The method for asset recovery provided in the embodiment.

According to a fifth aspect, the present invention also provides a storage medium storing a computer program, which causes the computer to execute the asset recovery method provided by the embodiments of the present invention.

The beneficial results of the present invention are:

The invention designs an asset recovery method. By first receiving the asset recovery request information signed and sent by the first client of the backup account, the asset recovery request information is written into the blockchain for the first account of the main account. The second client obtains the asset retrieval request information by synchronizing the data of the blockchain. Among them, the backup account and the main account are pre-configured associated accounts. Second, it monitors whether the signature is received by the second client within the pre-configured timeout period. And send the information of the request to cancel the recovery: No, the method of transferring the assets held by the master account to the backup account according to the information of the asset recovery request provides a method for users to forget the master account private key or master account mnemonic In the case of assets, there is still a way to recover assets.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of a scenario for asset recovery provided by an embodiment of the present invention.

FIG. 2 is a flowchart of an asset recovery method according to an embodiment of the present invention.

FIG. 3 is a flowchart of a preferred embodiment of the method shown in FIG. 2.

FIG. 4 is a flowchart of an asset recovery method according to an embodiment of the present invention.

FIG. 5 is a flowchart of an asset recovery method according to an embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a device according to an embodiment of the present invention.

Specific implementation method

The following describes the present application in detail with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. It should also be noted that, for convenience of description, only the parts related to the invention are shown in the drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The application will be described in detail below with reference to the drawings and embodiments.

As shown in FIG. 1, in this embodiment, the first contract 300, the user's main account 100, and the user-specified backup account 200 can provide the user with asset recovery services. In this embodiment, the master account 100 is configured with a master account private key 110, and the backup account 200 is configured with a backup account private key 210. The method for asset recovery provided by the present invention is described in detail below with reference to FIG. 2.

FIG. 2 is a flowchart of an asset recovery method according to an embodiment of the present invention. As shown in FIG. 2, in this embodiment, the present invention provides a method for asset recovery, including:

S12: Receive the asset retrieval request information signed and sent by the first client of the backup account, and write the asset retrieval request information to the blockchain for the second client of the master account to obtain data by synchronizing the blockchain Asset retrieval request information; among them, the backup account and the main account are pre-configured associated accounts;

S14: Within a pre-configured timeout period, it is monitored whether the revocation request information signed and sent by the second client is received:

Specifically, taking the application scenario shown in FIG. 1 as an example, the user uses the second client 100 of the main account to deposit 1 kg of gold assets into the first contract 300, and designates a standby account 200.

In step S12, the first contract 300 receives the asset recovery request information signed by the first client 200 of the backup account and sending the 1kg gold asset back to the backup account 200, and writes the asset recovery request information to the area Blockchain for the second client 100 of the main account to obtain asset retrieval request information by synchronizing the data of the blockchain; wherein the backup account 200 and the main account 100 are pre-configured associated accounts;

In step S14: the first contract 300 monitors, within a pre-configured timeout period, whether it has received the revocation request information signed and sent by the second client 100:

If not, the 1kg gold asset managed by the main account 100 is transferred to the backup account 200 according to the asset recovery request information.

In the above embodiments, the asset recovery method provided by the present invention is described by taking the asset as gold as an example. In more embodiments, the asset recovery method provided by the present invention is not limited to the above examples, and may also be based on actual needs. Allocating assets to other physical or virtual assets can achieve the same technical effect.

FIG. 3 is a flowchart of a preferred embodiment of the method shown in FIG. 2. As shown in FIG. 3, in a preferred embodiment, the first contract receives the asset retrieval request information signed and sent by the first client of the backup account, and before writing the asset retrieval request information to the blockchain, it further includes:

S11: Receive the backup account designation request information signed and sent by the second client, and configure an association relationship between the master account and the designated backup account according to the backup account designation request information.

In step S11, the first contract 300 receives the backup account 200 designation request information signed and sent by the second client 100, and configures an association relationship between the primary account 100 and the designated backup account 200 according to the backup account designation request information.

After the master account 100 and the designated backup account 200 are configured to associate with each other, at this time, both the master account private key 110 and the backup account private key 210 can allocate assets of the master account 100 in the first contract. Specifically, the method for establishing an association relationship between the master account and the backup account may be to establish an association relationship of “master account name, backup account name”, or may further include establishing a “master account name, backup account name, and master account's asset recovery contract The total amount of asset tokens in China ”and other related relationships. The method for establishing an association relationship provided by the present invention is not limited to the above examples, and other parameters can also be used to configure and configure the association relationship according to actual requirements, all of which can achieve the same technical effect.

In a preferred embodiment, the first contract receives the asset custody request information signed and sent by the second client, and according to the asset custody request information, the requested asset is managed by the main account. Assets can be real estate or other physical assets, or equity or other virtual assets.

In a preferred embodiment, after the step of transferring the assets managed by the master account to the backup account according to the asset retrieval request information, the first contract further includes: canceling the association relationship between the master account and the backup account.

In the above embodiment, the method for canceling the association relationship between the master account and the backup account provided by the present invention is described by taking the user forgetting the private key of the master account and the standby account successfully retrieving the assets in the first contract as an example. The implementation of the method of the embodiment is schematically described, but the description is not restrictive. In practical applications, those skilled in the art can make corresponding adjustments according to specific situations, and all belong to the protection scope of the present invention. . In addition to the application of the present invention in the application scenarios in the above embodiments, if a person of ordinary skill in the art is inspired by it, it can be promoted and used in other application scenarios without departing from the purpose of the present invention, and without creative Designing methods and embodiments similar to the technical solution of the present invention shall all belong to the protection scope of the present invention.

In more embodiments, the application scenario of the method for canceling the association relationship between the primary account and the backup account provided by the present invention is not limited to the above examples, and the method can also be applied to other application scenarios according to actual needs, which can be implemented Same technical effect.

In a preferred embodiment, the method for canceling the association relationship between the primary account and the backup account includes:

The first contract receives the request for canceling the association relationship submitted by the second client;

The first contract cancels the association relationship established between the main account and the backup account.

Specifically, there are the following application scenarios: at some point, a hacker obtains the private key of a backup account, the backup account has established an association with a master account, and the user deposits several assets into the first contract through the second client of the master account The user did not forget the private key of the master account. At this time, the hacker sends the asset recovery request information to the first contract after signing with the private key of the backup account;

The first contract receives the asset retrieval request information signed and sent by the first client of the backup account, and writes the asset retrieval request information to the blockchain for the second client of the master account to synchronize the blockchain data Obtaining asset retrieval request information;

Within the pre-configured timeout period, the first contract receives the signed disassociation request information submitted by the second client; the first contract revokes the operation of transferring the managed assets to a backup account, ensuring the asset recovery contract The integrity of the assets in question;

The first contract canceled the association established between the main account and the backup account. At this time, the private key of the backup account can no longer apply for asset recovery information, ensuring the security of the assets in the asset recovery contract.

This embodiment only lists an application scenario of the method described in the present invention, and describes the implementation manner of the method in this embodiment in this scenario, but the description is not restrictive. In practical applications, this method Those skilled in the art can make corresponding adjustments according to specific situations, and all of them should fall into the protection scope of the present invention. In addition to the application of the present invention in the application scenarios in the above embodiments, if a person of ordinary skill in the art is inspired by it, it can be promoted and used in other application scenarios without departing from the purpose of the present invention, and without creative Designing methods and embodiments similar to the technical solution of the present invention shall all belong to the protection scope of the present invention.

FIG. 4 is a flowchart of an asset recovery method according to an embodiment of the present invention. As shown in FIG. 4, in this embodiment, the present invention provides a method for asset recovery, including:

S22: Synchronize the data of the blockchain to obtain the asset retrieval request information; wherein the asset retrieval request information is signed by the first client of the backup account and sent to the first contract, and the first contract is written into the blockchain, The backup account is the linked account of the main account;

S24: Monitor whether a revocation instruction is received: Yes, then generate the revocation request information signed by the master account and send it to the first contract within a pre-configured timeout period for the first contract to revoke the asset retrieval based on the revocation request information The request information is returned; the first contract is also configured to transfer the assets managed by the master account to the backup account according to the asset recovery request information when the revocation request information is not received within the timeout period.

Specifically, taking the application scenario shown in FIG. 1 as an example, and taking the application scenario shown in FIG. 1 as an example, the user uses the second client 100 of the main account to deposit 1 kg of gold assets into the first contract 300, and Specify standby account 200.

In step S22, the second client 100 of the main account synchronizes the data of the blockchain to obtain the asset retrieval request information for recovering 1kg of gold; wherein the asset retrieval request information is signed by the first client 200 of the backup account and Sent to the first contract 300, and written into the blockchain by the first contract 300, the backup account 200 is an associated account of the main account 100;

In step S24, the second client 100 of the main account monitors whether or not a revocation instruction is received: if yes, the revocation request information signed by the main account 100 is generated and sent to the first contract 300 within a pre-configured timeout period to For the first contract 300 to revoke the asset recovery request information according to the revocation request information; wherein, the first contract 300 is also configured to transfer the main account according to the asset recovery request information when the revocation request information is not received within the timeout period. 100 custody of 1kg of gold assets was transferred to backup account 200.

In a preferred embodiment, the master account generates backup account designation request information signed by the master account and sends it to the first contract for the first contract to configure the association relationship between the master account and the designated backup account according to the backup account designation request information. Specifically, the method for establishing an association relationship between the master account and the designated backup account may be to establish an association relationship of “master account name, backup account name”, or may further include establishing a “master account name, backup account name, and master account in assets "Retrieve the total amount of asset tokens in the contract." The method for establishing an association relationship provided by the present invention is not limited to the above examples, and other parameters can also be used to configure and configure the association relationship according to actual requirements, all of which can achieve the same technical effect.

In a preferred embodiment, the master account generates the asset custody request information signed by the master account and sends it to the first contract for the first contract to custody the assets requested by the master account based on the asset custody request information. Assets can be real estate or other physical assets, or equity or other virtual assets.

In a preferred embodiment, the master account generates the disassociation request information signed by the master account and sends it to the first contract for the first contract to cancel the association relationship established between the master account and the backup account according to the disassociation request information.

The master account synchronizes the data of the blockchain to obtain the asset retrieval request information, and judges whether the asset retrieval request information comes from the user's own operation. If the asset retrieval request information is not the user's own operation, the master account signature is generated to cancel the association. The relationship request information is sent to the first contract for the first contract to cancel the association relationship established between the main account and the backup account according to the association cancellation request information.

FIG. 5 is a flowchart of an asset recovery method according to an embodiment of the present invention. As shown in FIG. 5, in this embodiment, the present invention provides a method for asset recovery, including:

S32: Generate the asset retrieval request information signed by the backup account and send it to the first contract for the first contract to write the asset retrieval request information to the blockchain for the second client of the master account to synchronize the blockchain Data acquisition request information for asset retrieval, and the first contract monitors whether a revocation retrieval request message signed and sent by the second client is received within a pre-configured timeout period: No, according to the asset retrieval request information, The assets managed by the master account are transferred to the backup account; the backup account and the master account are pre-configured linked accounts.

In step S32, the backup account 200 generates the asset recovery request information signed by the backup account and sends it to the first contract 300 for the first contract 300 to write the 1kg gold asset recovery request information into the blockchain for the host The second client 100 of the account obtains the asset retrieval request information by synchronizing the data of the blockchain, and the first contract 300 monitors whether a revocation search signed by the second client 100 and sent is received within a pre-configured timeout period. Request information back: No, the assets managed by the main account 100 are transferred to the backup account 200 according to the asset retrieval request information; wherein the backup account 200 and the main account 100 are pre-configured associated accounts.

As shown in FIG. 6, as another aspect, the present application further provides a device 600 including one or more central processing units (CPUs) 601, which may be based on a program stored in a read-only memory (ROM) 602 or The program loaded into the random access memory (RAM) 603 from the storage section 608 performs various appropriate actions and processes. In the RAM 603, various programs and data required for the operation of the device 600 are also stored. The CPU 601, the ROM 602, and the RAM 603 are connected to each other through a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

The following components are connected to the I / O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output portion 607 including a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; a storage portion including a hard disk and the like 608; and a communication section 609 including a network interface card such as a LAN card, a modem, and the like. The communication section 609 performs communication processing via a network such as the Internet. The driver 610 is also connected to the I / O interface 605 as necessary. A removable medium 611, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 610 as needed, so that a computer program read therefrom is installed into the storage section 608 as needed.

In particular, according to an embodiment of the present disclosure, the asset recovery method described in any of the above embodiments may be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product including a computer program tangibly embodied on a machine-readable medium, the computer program containing program code for performing an asset recovery method. In such an embodiment, the computer program may be downloaded and installed from a network through the communication portion 609, and / or installed from a removable medium 611.

As yet another aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium may be a computer-readable storage medium included in the device of the foregoing embodiment; it may also exist alone and not assembled in Computer-readable storage media in a device. The computer-readable storage medium stores one or more programs, which are used by one or more processors to execute the asset recovery method described in this application.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, which contains one or more functions to implement a specified logical function Executable instructions. It should also be noted that in some alternative implementations, the functions noted in the blocks may also occur in a different order than those marked in the drawings. For example, two blocks represented one after the other may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or operation , Or it can be implemented by a combination of dedicated hardware and computer instructions.

The units or modules described in the embodiments of the present application may be implemented in a software manner, or may be implemented in a hardware manner. The described units or modules may also be provided in a processor. For example, each of the units may be a software program provided in a computer or a mobile smart device, or may be a separately configured hardware device. Among them, the names of these units or modules do not in any way constitute a limitation on the units or modules themselves.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the claims of the present invention. At the same time, the above description should be understood and implemented by those skilled in the relevant technical field, so other equivalent changes made based on the disclosure of the present invention should be included in the scope of the claims.

Claims

A method for asset recovery, which includes:

Receive the asset retrieval request information signed and sent by the first client of the backup account, and write the asset retrieval request information into the blockchain for the second client of the master account to synchronize the Data obtaining the asset retrieval request information; wherein the backup account and the main account are pre-configured associated accounts;

Monitoring whether a revocation request message signed and sent by the second client is received within a pre-configured timeout period:

If not, the assets managed by the master account are transferred to the backup account according to the asset retrieval request information.
The method according to claim 1, wherein the receiving the asset retrieval request information signed and sent by the first client of the backup account, and before writing the asset retrieval request information into a blockchain, further comprising: :

Receiving the backup account designation request information signed and sent by the second client, and configuring an association relationship between the master account and the designated backup account according to the backup account designation request information.
The method according to claim 1, further comprising:

Receiving the asset custody request information signed and sent by the second client, and hosting the requested custody asset for the main account according to the asset custody request information.
The method according to any one of claims 1 to 3, wherein after transferring the assets managed by the master account to the backup account according to the asset retrieval request information, further comprising:

Cancel the association between the master account and the backup account.
The method according to any one of claims 1-3, comprising:

Receiving the request for canceling the association relationship submitted by the second client;

Cancel the association relationship established between the master account and the backup account.
A method for asset recovery, which includes:

Synchronize data of the blockchain to obtain asset retrieval request information; wherein the asset retrieval request information is signed by a first client of a backup account and sent to a first contract, and written into the first contract by the first contract Blockchain, the backup account is an associated account of the main account;

Monitoring whether a revocation instruction is received: yes, then generating the revocation request information signed by the master account and sending it to the first contract within a pre-configured timeout period for the first contract to find based on the revocation The request information is used to revoke the asset retrieval request information; wherein the first contract is further configured to, when the revocation request information is not received within the timeout period, to delete all assets according to the asset retrieval request information; The assets held by the master account are transferred to the backup account.
The method according to claim 6, further comprising:

Generate backup account designation request information signed by the master account and send it to the first contract for the first contract to configure an association relationship between the master account and the designated backup account according to the backup account designation request information.
The method according to claim 6, further comprising:

Generating the asset custody request information signed by the master account and sending it to the first contract for the first contract to custody the assets requested to be managed by the master account according to the asset custody request information.
The method according to any one of claims 6-8, further comprising:

Generate the association cancellation request information signed by the master account and send it to the first contract for the first contract to cancel the association relationship established between the master account and the backup account according to the cancellation association request information.
A method for asset recovery, which includes:

Generate the asset retrieval request information signed by the backup account and send it to the first contract for the first contract to write the asset retrieval request information to the blockchain for the second client of the master account to synchronize The blockchain data obtains the asset retrieval request information, and the first contract monitors, within a pre-configured timeout period, whether or not it receives the cancellation retrieval request information signed and sent by the second client: If not, the assets managed by the master account are transferred to the backup account according to the asset retrieval request information; wherein the backup account and the master account are pre-configured associated accounts.
A device, characterized in that the device includes:

One or more processors;

Memory for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors are caused to execute the method according to any one of claims 1-10.
A storage medium storing a computer program, characterized in that when the program is executed by a processor, the method according to any one of claims 1-10 is implemented.