基于区块链技术的互联网在线取证系统设计

Design of Internet Online Forensics System Based on Blockchain Technology

提出一种基于区块链技术互联网在线取证系统,能够在保证数据真实性的同时,满足实时性的要求。普通用户通过注册可以加入系统网络然后向系统提交需要进行取证的网址,系统会根据用户提交的网址获取网页的源代码和服务器相关信息并对网页内容截屏然后将这些数据作为证据并利用SHA2-256算法计算出这组数据的数字摘要。接着系统会在计算出的数字摘要中加入时间戳并利用用户的私有密钥对数据进行加密形成数字签名,最后将这组数据作为一个区块加入到区块链中。

Proposes an Internet online forensics system based on blockchain technology,which can meet the requirements of real-time performance while ensuring the authenticity of data.Ordinary users can join the system network by registering and then submit the URLs that need to be forensic to the system.The system obtains the source code and server related information of the webpage according to the URL submitted by the user and take a screenshot of the webpage content and then uses the data as evidence and utilize SHA2-256.The algorithm calcu lates a digital summary of the set of data.The system then adds a timestamp to the calculated digital digest and encrypts the data with the user's private key to form a digital signature.Finally,the set of data is added to the blockchain as a block.