ASSET MANAGEMENT METHOD AND APPARATUS, AND ELECTRONIC DEVICE

• US 20200136833A1
• Filed: 12/23/2019
• Published: 04/30/2020
• Est. Priority Date: 02/14/2018
• Status: Active Grant

• Current Assignee: Advanced New Technologies Company Limited (Ant Group Co., Ltd.)
• Original Assignee: Alibaba Group Holding Ltd.
• Inventors: Yan, Xuebing
• Granted Patent: US 11,218,325 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/235 Update request formulation
• CPC Class Codes: G06F 16/27 Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 8/70 Software maintenance or management
• CPC Class Codes: H04L 2209/56 Financial cryptography, e.g. electronic payment or e-cash
• CPC Class Codes: H04L 63/102 Entity profiles
• CPC Class Codes: H04L 9/0866 involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
• CPC Class Codes: H04L 9/0891 Revocation or update of secret information, e.g. encryption key update or rekeying
• CPC Class Codes: H04L 9/3239 involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04L 9/50 using hash chains, e.g. blockchains or hash trees

Abstract

This specification describes techniques for managing assets in a blockchain. One example method includes receiving, from a target user recorded in a distributed database of a blockchain network, a user input including a request to update a status of a target object, determining, based on a contract object, whether the target user is a member user with an update permission for the target object, the contract object being published in the blockchain network and corresponding to an asset type of the target object, wherein the target object was created using the contract object, and in response to determining that the target user has the update permission for the target object, performing a status update on the target object by using the contract object.

Claims

1. A computer-implemented method for asset management, the computer-implemented method comprising:

receiving, from a target user recorded in a distributed database of a blockchain network, a user input comprising a request to update a status of a target object;

determining, based on a contract object, whether the target user is a member user with an update permission for the target object, the contract object being published in the blockchain network and corresponding to an asset type of the target object, wherein the target object was created using the contract object; and

in response to determining that the target user has the update permission for the target object, performing a status update on the target object by using the contract object.

2. The computer-implemented method of claim 1, wherein the contract object comprises an authentication program corresponding to the update permission for the target object.

3. The computer-implemented method of claim 1, wherein the contract object comprises a list of member users with update permission for the target object, the list comprising a public key for each one of the member users with update permission for the target object, and the status update request is signed by the target user based on a private key.

4. The computer-implemented method of claim 1, wherein the contract object comprises a code field that is used to maintain an execution code related to an execution program.

5. The computer-implemented method of claim 1, wherein the blockchain network comprises a consortium chain, and the target user in the blockchain network is a consortium member that has asset object generation authority in the consortium chain.

6. The computer-implemented method of claim 1, wherein the status of the target object comprises a flag indicating a performance of the target user.

7. The computer-implemented method of claim 1, further comprising generating for the target user a public key associated with an account address of an institution in the blockchain network and a private key configured to be used by the institution to operate an account corresponding to the account address.

8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

receiving, from a target user recorded in a distributed database of a blockchain network, a user input comprising a request to update a status of a target object;

determining, based on a contract object, whether the target user is a member user with an update permission for the target object, the contract object being published in the blockchain network and corresponding to an asset type of the target object, wherein the target object was created using the contract object; and

in response to determining that the target user has the update permission for the target object, performing a status update on the target object by using the contract object.

9. The non-transitory, computer-readable medium of claim 8, wherein the contract object comprises an authentication program corresponding to the update permission for the target object.

10. The non-transitory, computer-readable medium of claim 8, wherein the contract object comprises a list of member users with update permission for the target object, the list comprising a public key for each one of the member users with update permission for the target object, and the status update request is signed by the target user based on a private key.

11. The non-transitory, computer-readable medium of claim 8, wherein the contract object comprises a code field that is used to maintain an execution code related to an execution program.

12. The non-transitory, computer-readable medium of claim 8, wherein the blockchain network comprises a consortium chain, and the target user in the blockchain network is a consortium member that has asset object generation authority in the consortium chain.

13. The non-transitory, computer-readable medium of claim 8, wherein the status of the target object comprises a flag indicating a performance of the target user.

14. The non-transitory, computer-readable medium of claim 8, wherein the operations further comprise generating for the target user a public key associated with an account address of an institution in the blockchain network and a private key configured to be used by the institution to operate an account corresponding to the account address.

15. A computer-implemented system, comprising:

one or more computers; and

one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform operations comprising;

receiving, from a target user recorded in a distributed database of a blockchain network, a user input comprising a request to update a status of a target object;

determining, based on a contract object, whether the target user is a member user with an update permission for the target object, the contract object being published in the blockchain network and corresponding to an asset type of the target object, wherein the target object was created using the contract object; and

in response to determining that the target user has the update permission for the target object, performing a status update on the target object by using the contract object.

16. The computer-implemented system of claim 15, wherein the contract object comprises an authentication program corresponding to the update permission for the target object.

17. The computer-implemented system of claim 15, wherein the contract object comprises a list of member users with update permission for the target object, the list comprising a public key for each one of the member users with update permission for the target object, and the status update request is signed by the target user based on a private key.

18. The computer-implemented system of claim 15, wherein the contract object comprises a code field that is used to maintain an execution code related to an execution program.

19. The computer-implemented system of claim 15, wherein the blockchain network comprises a consortium chain, and the target user in the blockchain network is a consortium member that has asset object generation authority in the consortium chain.

20. The computer-implemented system of claim 15, wherein the status of the target object comprises a flag indicating a performance of the target user.