How to Decrease Defects of Smart Contracts Security

Abstract

Blockchain is an open, transparent, accurate and reliable distributed ledger technology that integrates various technologies such as cryptography, consensus mechanism, and smart contracts, and adopts a peer-to-peer network. It provides a new method for building a trust system. Smart contracts are self-executing computer programs that run on a blockchain network. They enable users to build applications that can enable secure, immutable, and automated transactions without the need for a third-party intermediary. Smart contracts can help users store information, execute transactions, and manage assets safely, efficiently, and credibly on the blockchain. However, there are still security issues in the smart contract itself. This article discusses the security issues of smart contracts, and puts forward suggestions for contract security.