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Using Blockchain for Digital Evidence Preservation in Log Data
|關鍵字:||區塊鏈;日誌資料;數位證據保全;分散式帳本;Blockchain;Log Data;Digital Evidence Preservation;Distributed Ledger||引用:|| F. M. Granja and G. D. R. Rafael, 'Preservation of digital evidence: Application in criminal investigation,' 2015 Science and Information Conference (SAI), pp. 1284–1292, 2015.  T. Sato, Y. Himura, and Y. Yasuda, 'Evidence-based context-aware log data management for integrated monitoring system,' 2016 18th Asia-Pacific Network Operations and Management Symposium (APNOMS), 2016.  R. Accorsi, 'Log Data as Digital Evidence: What Secure Logging Protocols Have to Offer?,' 2009 33rd Annual IEEE International Computer Software and Applications Conference, vol. 2, pp. 398–403, 2009.  S. Raval, Decentralized Applications: Harnessing Bitcoin's Blockchain Technology. O'Reilly Media, Inc, 2016.  J. Bonneau, A. Miller, J. Clark, A. Narayanan, J. A. Kroll, and E. W. 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Recently, the news of hackers hack into company's network has been heard and the personal data protection law has been issued, which have made company pay attention to the field of digital forensics. In order to achieve the principle of absolute liability in personal data protection law and be able to prove effectively after the event, the preservation of digital evidence is even more important. Also, the log data can be used as a track for tracking incidents, and it can prove behavior when a security incident happens. However, the log data can be easily modified, and it is hard to determine the integrity and original source of data. Therefore, it is more difficult for the judge to believe the admissibility of evidence and the probative value of evidence. In this study, we will aim at the need for company to preserve the digital evidence to develop a digital evidence preservation in log data. We use blockchain's unmodifiable feature to store log data in blockchain distributed ledger, and use the consortium blockchain to design a blockchain, which contains one server peer and some company peers. The server peer controls peer's permissions, and the company peers can store log data on the blockchain. When block is generated by mining peer, each peer will receive this block, thereby achieving the unmodifiable and consistency of log data. In the litigation, it can not only be used to prove the probative value of evidence, but also make the log data more powerful in admissibility of evidence. So that company can achieve the purpose of absolute liability and prove effectively after the event.
|Appears in Collections:||資訊管理學系|
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