Design And Implementation Of Ethereum Smart Contract Security Detection System

The blockchain has developed rapidly in recent years,and many criminals and hackers have begun to attack the blockchain under the temptation of money.In the security incidents of the blockchain,the economic losses caused by attacks on the smart contract field account for a large proportion.The smart contracts on the Ethereum platform have more security incidents due to their wider application.Therefore,designing and implementing an Ethereum smart contract security detection system to provide a one-stop security detection service before the smart contract is chained is of great significance for contract developers and maintenance of smart contract security and blockchain security.The main content of this article is divided into the following four parts:1.Demand analysis of the Ethereum smart contract security detection system.Through user role analysis,it is determined that the system has three types of users,including contract security inspectors,contract security researchers and system administrators.Through the analysis of the functional requirements of the system,it is determined that the system mainly includes functions such as contract detection,contract detection result management and analysis,information viewing,contract management,detection engine management,and system management.At the same time,the system is analyzed for non-functional requirements.The scalability of the ability to detect vulnerabilities and the performance of detection are the main concerns.2.The overall design of the Ethereum smart contract security detection system.The system is divided into modules,which are divided into three parts:detection engine,detection system and management system.The core detection engine of the system is designed,which is divided into static detection module,string matching module,contract vulnerability library module,detection rule library module,and result output module.The database of the system is designed using the E-R diagram.The main interface of the system is designed by using the UI prototype.3.Detailed design and implementation of the main modules of the Ethereum smart contract security detection system.The detection engine and main functional modules of the system are designed in detail,and the development of the system is completed through front-end and back-end development techniques.4.Testing and analysis of the Ethereum smart contract security detection system.The test cases of the main functions of the system are designed and the functional tests of the system are carried out according to the test cases.Non-functional tests were carried out on the scalability of the system’s detection vulnerabilities,the performance of the detection contract,and the response time of the system.The function and detection ability of this system and other detection tools are compared and analyzed,which reflects the advantages of this system.To sum up,this paper conducts demand analysis,overall design,detailed design,development and implementation of the Ethereum smart contract security detection system,and designs an expandable smart contract security detection engine for the contract detection function.The system can provide one-stop contract security detection services for Ethereum smart contract developers,including contract detection,detailed output of detection results,visual detection data analysis,detection report viewing,detection record query,vulnerability knowledge base learning and other services.This system can help Ethereum smart contract developers discover security loopholes in the contract writing process and provide improvement measures,effectively avoiding possible economic losses.