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An encoding and decoding method and system based on a blockchain smart contract

A technology of smart contracts and encoding methods, applied in the information field, can solve the problem of not supporting BASE64 encoding and decoding operations by default

Active Publication Date: 2019-06-25
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing Ethereum virtual machine does not support BASE64 encoding and decoding operations by default, the embodiment of this specification provides an encoding method and system based on blockchain smart contracts. The technical solution is as follows:

Method used

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  • An encoding and decoding method and system based on a blockchain smart contract
  • An encoding and decoding method and system based on a blockchain smart contract
  • An encoding and decoding method and system based on a blockchain smart contract

Examples

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Embodiment 1

[0116] figure 1 It is a schematic flow chart of a coding method based on a blockchain smart contract provided by the embodiment of this specification, including the following steps:

[0117] S100: A node in the blockchain network obtains a business and initiates a transaction and broadcasts it to other nodes.

[0118] S102: For each node in the blockchain network, when executing the business initiation transaction, the node invokes the business smart contract through the blockchain virtual machine.

[0119] S104: The node uses the blockchain virtual machine to trigger the execution of the BASE64 encoding logic according to the BASE64 encoding instruction in the business smart contract, so as to perform an encoding operation on the data to be encoded.

[0120] In this embodiment, it is necessary to pre-configure the blockchain network so that:

[0121] 1) The instruction set of the blockchain virtual machine includes BASE64 encoded instructions, and the blockchain virtual mac...

Embodiment 2

[0137] figure 2It is a schematic flowchart of another coding method based on blockchain smart contracts provided by the embodiment of this specification, including the following steps:

[0138] S200: A node in the blockchain network obtains a service and initiates a transaction and broadcasts it to other nodes.

[0139] S202: For each node in the blockchain network, when executing the business initiation transaction, the node invokes the business smart contract through a blockchain virtual machine.

[0140] S204: The node invokes the BASE64-encoded smart contract through the blockchain virtual machine according to the contract identifier of the BASE64-encoded smart contract in the business smart contract.

[0141] S206: The node uses the blockchain virtual machine to trigger the execution of the BASE64 encoding logic according to the BASE64 encoding instruction in the BASE64 encoding smart contract, so as to perform an encoding operation on the data to be encoded.

[0142] ...

Embodiment 3

[0150] image 3 It is a schematic flow chart of a coding method based on a blockchain smart contract provided by the embodiment of this specification, including the following steps:

[0151] S300: A node in the blockchain network obtains a service and initiates a transaction and broadcasts it to other nodes.

[0152] S302: For each node in the blockchain network, when executing the business initiation transaction, the node invokes the business smart contract through a blockchain virtual machine.

[0153] S304: The node uses the blockchain virtual machine to trigger the execution of the BASE64 decoding logic according to the BASE64 decoding instruction in the business smart contract, so as to decode the data to be decoded.

[0154] In this embodiment, it is necessary to pre-configure the blockchain network so that:

[0155] 1) The instruction set of the blockchain virtual machine includes BASE64 decoding instructions, and the blockchain virtual machine is deployed with BASE64...

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Abstract

The invention discloses a BASE64 coding and decoding method and a BASE64 coding and decoding system based on a block chain smart contract. In the embodiment of the specification, On one hand, a BASE64coding instruction and a BASE64 decoding instruction are defined and added into an instruction set of a block chain virtual machine; Meanwhile, BASE64 encoding logic corresponding to the BASE64 encoding instruction and BASE64 decoding logic corresponding to the BASE64 decoding instruction are deployed in the blockchain virtual machine. And on the other hand, a defined BASE64 coding instruction and a defined BASE64 decoding instruction need to be added into an instruction set of the intelligent contract compiler, so that the business intelligent contract compiled by the intelligent contract compiler contains the BASE64 coding instruction and / or the BASE64 decoding instruction. Therefore, if the business intelligent contract is deployed in the block chain network, the user can simultaneously assign and call the business intelligent contract to execute the business initiation transaction when constructing the business initiation transaction.

Description

technical field [0001] The embodiments of this specification relate to the field of information technology, and in particular to a coding and decoding method and system based on blockchain smart contracts. Background technique [0002] At present, by deploying smart contracts in the blockchain network based on the Ethereum protocol, various online business needs can be met. [0003] In practice, for some business needs, each node in the blockchain network needs to perform encoding and decoding based on 64 printable characters (BASE64) when calling the smart contract corresponding to the business demand through the Ethereum virtual machine to execute the business. operate. [0004] However, the existing Ethereum virtual machine does not support BASE64 encoding and decoding operations by default. Contents of the invention [0005] In order to solve the problem that the existing Ethereum virtual machine does not support BASE64 encoding and decoding operations by default, th...

Claims

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Application Information

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IPC IPC(8): G06F9/455
CPCH04L9/3249H04L9/3239G06F9/45504G06F8/41H04L9/50G06F16/2379G06F9/45558
Inventor 谢桂鲁
Owner ADVANCED NEW TECH CO LTD
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