A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics

Since digital forensics becomes more and more popular, more and more attention has been paid to the originality and validity of data, and data preservation technology emerges as the times require. However, the current data preservation models and technologies are only the combination of cryptography...

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Main Authors: Gongzheng Liu, Jingsha He, Xinggang Xuan
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2021/5536326
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author Gongzheng Liu
Jingsha He
Xinggang Xuan
author_facet Gongzheng Liu
Jingsha He
Xinggang Xuan
author_sort Gongzheng Liu
collection DOAJ
description Since digital forensics becomes more and more popular, more and more attention has been paid to the originality and validity of data, and data preservation technology emerges as the times require. However, the current data preservation models and technologies are only the combination of cryptography technology, and there is a risk of being attacked and cracked. And in the process of data preservation, human participation is also needed, which may lead to data tampering. To solve problems given, this paper presents a data preservation model based on blockchain and multidimensional hash. With the decentralization and smart contract characteristics of blockchain, data can be automatically preserved without human participation to form a branch chain of custody in the unit of case, and blockchain has good antiattack performance, which is the so-called 51% attack. Meanwhile, in order to solve the problem of data confusion and hard to query caused by the excessive number of cases, hash, cryptography, and timestamps are used to form a serialized main chain of custody. Because of the confliction problem of hash and judicial trial needs to absolutely guarantee the authenticity and validity of data, multidimensional hash is used to replace regular hash. In this way, the data preservation becomes an automatic, nonhuman-interventional process. Experiments have been carried out to show the security and effectiveness of the proposed model.
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spelling doaj-art-968e88a732964c8399fb32d02494122a2025-08-20T02:10:14ZengWileyComplexity1076-27871099-05262021-01-01202110.1155/2021/55363265536326A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital ForensicsGongzheng Liu0Jingsha He1Xinggang Xuan2Faculty of Information Department, Beijing University of Technology, Beijing 100124, ChinaFaculty of Information Department, Beijing University of Technology, Beijing 100124, ChinaFaculty of Information Department, Beijing University of Technology, Beijing 100124, ChinaSince digital forensics becomes more and more popular, more and more attention has been paid to the originality and validity of data, and data preservation technology emerges as the times require. However, the current data preservation models and technologies are only the combination of cryptography technology, and there is a risk of being attacked and cracked. And in the process of data preservation, human participation is also needed, which may lead to data tampering. To solve problems given, this paper presents a data preservation model based on blockchain and multidimensional hash. With the decentralization and smart contract characteristics of blockchain, data can be automatically preserved without human participation to form a branch chain of custody in the unit of case, and blockchain has good antiattack performance, which is the so-called 51% attack. Meanwhile, in order to solve the problem of data confusion and hard to query caused by the excessive number of cases, hash, cryptography, and timestamps are used to form a serialized main chain of custody. Because of the confliction problem of hash and judicial trial needs to absolutely guarantee the authenticity and validity of data, multidimensional hash is used to replace regular hash. In this way, the data preservation becomes an automatic, nonhuman-interventional process. Experiments have been carried out to show the security and effectiveness of the proposed model.http://dx.doi.org/10.1155/2021/5536326
spellingShingle Gongzheng Liu
Jingsha He
Xinggang Xuan
A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
Complexity
title A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
title_full A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
title_fullStr A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
title_full_unstemmed A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
title_short A Data Preservation Method Based on Blockchain and Multidimensional Hash for Digital Forensics
title_sort data preservation method based on blockchain and multidimensional hash for digital forensics
url http://dx.doi.org/10.1155/2021/5536326
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