通信学报2024，Vol.45Issue(12)：124-141,18.DOI:10.11959/j.issn.1000-436x.2024204
区块链数字取证:技术及架构研究
Blockchain digital forensics:technology and architecture
摘要
Abstract
Issues of limited scene adaptability,inadequate evidence preservation,and low efficiency in traditional digital forensics were addressed by analyzing the feasibility of incorporating decentralized,tamper-resistant blockchain technol-ogy into digital forensic practices.Initially,a phased forensic process was proposed based on a hierarchical architecture for blockchain forensic technology,examining the advancements of blockchain at each stage of evidence acquisition,preservation,and presentation.Subsequently,limitations in existing research were analyzed,and a digital forensic frame-work incorporating comprehensive blockchain involvement was designed by utilizing the distributed advantages of blockchain.This framework integrated evidence information into the on-chain data structure and introduced a comple-mentary graph analysis algorithm to standardize evidence collection across various scenarios.An off-chain distributed da-tabase was employed to achieve scalable,efficient storage,while smart contract templates enhance the reusability of con-tracts for similar forensic transactions.Lastly,potential future directions for the application of blockchain technology in forensic science were explored.关键词
数字取证/区块链/取证元数据/智能合约/图分析算法Key words
digital forensics/blockchain/forensic metadata/smart contracts/graph analysis algorithms分类
信息技术与安全科学引用本文复制引用
范伟,李海波,张珠君..区块链数字取证:技术及架构研究[J].通信学报,2024,45(12):124-141,18.基金项目
国家重点研发计划基金资助项目(No.2021YFB2700603) The National Key Research and Development Program of China(No.2021YFB2700603) （No.2021YFB2700603）
