System and method for executing different types of blockchain contracts

• US 10,705,866 B2
• Filed: 12/16/2019
• Issued: 07/07/2020
• Est. Priority Date: 06/28/2019
• Status: Active Grant

• Current Assignee: Advanced New Technologies Company Limited (Ant Group Co., Ltd.)
• Original Assignee: Alibaba Group Holding Ltd.
• Inventors: Wang, Shifeng
• Primary Examiner(s): Teets, Bradley A
• Application Number:
  US16/716,016
• Publication Number:
  US 20200117493A1
• Time in Patent Office: 204 Days
• Field of Search: None
• CPC Class Codes: G06F 21/64 Protecting data integrity, e.g. using checksums, certificates or signatures
• CPC Class Codes: G06F 8/30 Creation or generation of source code
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 9/0844 with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
• 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

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for executing blockchain contracts are provided. One of the methods includes: obtaining a bytecode of a blockchain contract, wherein the bytecode comprises one or more indicators, and the one or more indicators comprise a first indicator indicating a virtual machine type for executing the blockchain contract; and executing the blockchain contract using a virtual machine of the virtual machine type associated with the first indicator.

Claims

1. A computer-implemented method for executing blockchain contracts, comprising:

obtaining a bytecode of a blockchain contract, wherein;

the bytecode comprises a plurality of indicators,

the plurality of indicators comprise a first indicator indicating a virtual machine type for executing the blockchain contract and a second indicator indicating a virtual machine version for executing the blockchain contract,

the first indicator corresponds to a first byte of the bytecode of the blockchain contract,

the second indicator corresponds to a second byte of the bytecode of the blockchain contract, and

a third to an n^th byte of the bytecode of the blockchain contract correspond to code for executing the blockchain contract, n being a natural number no less than three, and the first to the n^th byte of the bytecode of the blockchain contract specifying an application binary interface (ABI) format; and

executing the blockchain contract using a virtual machine of the virtual machine type associated with the first indicator and of the virtual machine version associated with the second indicator.

2. The method of claim 1, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device the bytecode of the blockchain contract, wherein the bytecode is compiled from source code of the blockchain contract, and the source code comprises the plurality of indicators.

3. The method of claim 1, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device source code of the blockchain contract, the source code comprising the plurality of indicators; and

compiling the source code to obtain the bytecode of the blockchain contract.

4. The method of claim 1, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device a raw bytecode for executing the blockchain contract, wherein the raw bytecode is compiled from raw source code for executing the blockchain contract; and

adding the plurality of indicators to the raw bytecode to obtain the bytecode of the blockchain contract.

5. The method of claim 1, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device raw source code for executing the blockchain contract;

compiling the raw source code to obtain a raw bytecode; and

adding the plurality of indicators to the raw bytecode to obtain the bytecode of the blockchain contract.

6. The method of claim 1, wherein executing the blockchain contract using the virtual machine of the virtual machine type associated with the first indicator comprises:

triggering the virtual machine of the virtual machine type associated with the first indicator to deploy the blockchain contract on a corresponding blockchain, the deployed blockchain contract being associated with the virtual machine type.

7. The method of claim 6, wherein executing the blockchain contract using the virtual machine of the virtual machine type associated with the first indicator further comprises:

triggering the virtual machine of the virtual machine type associated with the first indicator to invoke the deployed blockchain contract.

8. The method of claim 1, wherein:

the virtual machine type for executing the blockchain contract comprises;

a GNU compiler collection (GCC) virtual machine for executing blockchain contracts written in c++ programming language, a java virtual machine (JVM) for executing blockchain contracts written in java programming language, an Ethereum virtual machine (EVM) for executing blockchain contracts written in solidity programming language, or a python virtual machine (PVM) for executing blockchain contracts written in python programming language.

9. A system for executing blockchain contracts, comprising one or more processors and one or more non-transitory computer-readable memories coupled to the one or more processors and configured with instructions executable by the one or more processors to cause the system to perform operations comprising:

obtaining a bytecode of a blockchain contract, wherein;

the bytecode comprises a plurality of indicators,

the plurality of indicators comprise a first indicator indicating a virtual machine type for executing the blockchain contract and a second indicator indicating a virtual machine version for executing the blockchain contract,

the first indicator corresponds to a first byte of the bytecode of the blockchain contract,

the second indicator corresponds to a second byte of the bytecode of the blockchain contract, and

a third to an n^th byte of the bytecode of the blockchain contract correspond to code for executing the blockchain contract, n being a natural number no less than three, and the first to the n^th byte of the bytecode of the blockchain contract specifying an application binary interface (ABI) format; and

executing the blockchain contract using a virtual machine of the virtual machine type associated with the first indicator and of the virtual machine version associated with the second indicator.

10. The system of claim 9, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device the bytecode of the blockchain contract, wherein the bytecode is compiled from source code of the blockchain contract, and the source code comprises the plurality of indicators.

11. The system of claim 9, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device a raw bytecode for executing the blockchain contract, wherein the raw bytecode is compiled from raw source code for executing the blockchain contract; and

adding the plurality of indicators to the raw bytecode to obtain the bytecode of the blockchain contract.

12. The system of claim 9, wherein executing the blockchain contract using the virtual machine of the virtual machine type associated with the first indicator comprises:

triggering the virtual machine of the virtual machine type associated with the first indicator to deploy the blockchain contract on a corresponding blockchain, the deployed blockchain contract being associated with the virtual machine type.

13. The system of claim 9, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device source code of the blockchain contract, the source code comprising the plurality of indicators; and

compiling the source code to obtain the bytecode of the blockchain contract.

14. The system of claim 9, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device raw source code for executing the blockchain contract;

compiling the raw source code to obtain a raw bytecode; and

adding the plurality of indicators to the raw bytecode to obtain the bytecode of the blockchain contract.

15. A non-transitory computer-readable storage medium for executing blockchain contracts, the storage medium coupled to the one or more processors and configured with instructions executable by the one or more processors to cause the one or more processors to perform operations comprising:

obtaining a bytecode of a blockchain contract, wherein;

the bytecode comprises a plurality of indicators, and

the plurality of indicators comprise a first indicator indicating a virtual machine type for executing the blockchain contract and a second indicator indicating a virtual machine version for executing the blockchain contract,

the first indicator corresponds to a first byte of the bytecode of the blockchain contract,

the second indicator corresponds to a second byte of the bytecode of the blockchain contract, and

a third to an n^th byte of the bytecode of the blockchain contract correspond to code for executing the blockchain contract, n being a natural number no less than three, and the first to the n^th byte of the bytecode of the blockchain contract specifying an application binary interface (ABI) format; and

executing the blockchain contract using a virtual machine of the virtual machine type associated with the first indicator and of the virtual machine version associated with the second indicator.

16. The storage medium of claim 15, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device the bytecode of the blockchain contract, wherein the bytecode is compiled from source code of the blockchain contract, and the source code comprises the plurality of indicators.

17. The storage medium of claim 15, wherein obtaining the bytecode of the blockchain contract comprises:

obtaining from a client device a raw bytecode for executing the blockchain contract, wherein the raw bytecode is compiled from raw source code for executing the blockchain contract; and

adding the plurality of indicators to the raw bytecode to obtain the bytecode of the blockchain contract.

18. The storage medium of claim 15, wherein:

executing the blockchain contract using the virtual machine of the virtual machine type associated with the first indicator comprises;

triggering the virtual machine of the virtual machine type associated with the first indicator to deploy the blockchain contract on a corresponding blockchain, the deployed blockchain contract being associated with the virtual machine type.

19. The storage medium of claim 15, wherein executing the blockchain contract using the virtual machine of the virtual machine type associated with the first indicator further comprises:

triggering the virtual machine of the virtual machine type associated with the first indicator to invoke the deployed blockchain contract.

20. The storage medium of claim 15, wherein:

the virtual machine type for executing the blockchain contract comprises;

a GNU compiler collection (GCC) virtual machine for executing blockchain contracts written in c++ programming language, a java virtual machine (JVM) for executing blockchain contracts written in java programming language, an Ethereum virtual machine (EVM) for executing blockchain contracts written in solidity programming language, or a python virtual machine (PVM) for executing blockchain contracts written in python programming language.