Event connection system and method for smart contract

Abstract

The invention discloses an event connection system and method for a smart contract. An intelligent contract is transmitted between an event transmission intelligent contract of a transmission event and a first intelligent contract of a receiving event; an event agent intelligent contract with an interface function is added. An event transmission smart contract is provided to transmit an event by an interface function, and the event agent intelligent contract address is transmitted through an agent function of the first intelligent contract. The event agent smart contract is set as having a permission to execute the first smart contract, therefore, when the event is designed to transmit the smart contract, the content of the first smart contract does not need to be known in advance, and thesending event and the receiving event can be completed in the same block of the block chain, so that the technical effect of improving the design flexibility and the transaction security of the smartcontract is achieved.

Description

technical field [0001] The invention relates to an event connection system and a method thereof, in particular to an event connection system and a method of an intelligent contract in a block chain environment. Background technique [0002] In recent years, with the popularization and vigorous development of blockchain technology, various blockchain-based applications have sprung up, among which smart contracts (Smart Contract) have attracted the most attention. [0003] Generally speaking, a smart contract on the blockchain is a computer program that includes variable states and functions. When the application software needs to use multiple smart contracts, these smart contracts must be connected by events (or called connection), in actual implementation, a client program (such as: web3.js) can initiate a new transaction to generate a chain after receiving an event, or modify the content of a smart contract so that a smart contract can directly call another smart contract ...

AI Technical Summary

Problems solved by technology

However, the former method of initiating a new transaction after receiving the event will cause the event and the transaction to be completed in different blocks, so that the client can use the client program to directly drive the event to occur after the event occurs when no event occurs. The transaction is carried out, or the transaction is driven after the time limit has expired due to the delay of the client, which leads to security issues; as for the latter method of directly calling another smart contract from a smart contract, the content of the called smart contract must be known in advance. And once the smart contract is published on the blockchain, there is no way to add or remove the interaction logic between smart contracts, that is to say, it is impossible to add or remove the existing way of exchanging information through function calls, resulting in a lack of flexibility , so it has the problems of smart contract design flexibility and poor transaction security

[0004] In summary, it can be seen that there have been problems in the design flexibility of smart contracts and poor transaction security in the existing technology for a long time, so it is necessary to propose an improved technical means to solve this problem

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