A Systematic Study about the Vulnerabilities and Security Enhancement in Block Chain Technology

Abstract

In this paper we undertake a methodical analysis of the Block Chain system's vulnerabilities and examine security upgrade strategies that could suggest future directions for investigation into Block Chain technology and its applications. Smart contracts are self-executing programs that store cryptocurrency valued at billions of SEK on second-generation block chains like Ethereum. Once they are put into place, they cannot be changed. Although smart contracts are typically thought to be secure objects, a new class of vulnerabilities that are more likely to be ethical aspects of programming than software coding flaws are revealed by a methodical examination of technology and source code.