Digital forensic in IoT paradigm: Blockchain assisted digital forensic framework with improved cryptosystem.

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Title: Digital forensic in IoT paradigm: Blockchain assisted digital forensic framework with improved cryptosystem.
Authors: Rekha, G1 (AUTHOR) rekhacsesoet@spmvv.ac.in, Sudha, T2 (AUTHOR)
Source: Intelligent Decision Technologies. Sep2025, Vol. 19 Issue 5, p3573-3592. 20p.
Subjects: Blockchains, Cryptosystems, Digital forensics, Internet of things, Data privacy, Data security, Edge computing, Data encryption
Abstract: Recent investigative frame works, digital forensic tools, and techniques are incapable of acquiring the IoT paradigm's dispersion and heterogeneity characteristics that make law enforcement organizations and digital forensic investigators do their tasks. To address these issues, this study presents a Blockchain-assisted digital forensic system for the IoT context. The devices in the perception layer contain several forensic evidences, which are transmitted to the further layer called the Fog layer. Moreover, the secure transmission of messages from the perception layer to the fog layer is a major challenge. To address this issue, the user's identity (investigators and devices) can be mapped to a pseudo-identity and the security of signature and confidentiality mechanisms ensures both privacy and security. Subsequently, the Fog layer verifies the signature data and employs an improved Blowfish encryption algorithm to provide security to the evidence transmission. In order to encrypt the evidence, the optimal key is generated using the SSAJO algorithm. Then the encrypted message is subjected to a distributed ledger called consortium blockchain that improves the security factors with a greater level of control. Moreover, the proposed IoT framework controls the cloud locally to store, and access data, and performs occasional synchronization with a consortium blockchain. [ABSTRACT FROM AUTHOR]
Copyright of Intelligent Decision Technologies is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Digital forensic in IoT paradigm: Blockchain assisted digital forensic framework with improved cryptosystem.
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  Data: <searchLink fieldCode="AR" term="%22Rekha%2C+G%22">Rekha, G</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rekhacsesoet@spmvv.ac.in</i><br /><searchLink fieldCode="AR" term="%22Sudha%2C+T%22">Sudha, T</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Intelligent+Decision+Technologies%22">Intelligent Decision Technologies</searchLink>. Sep2025, Vol. 19 Issue 5, p3573-3592. 20p.
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  Data: <searchLink fieldCode="DE" term="%22Blockchains%22">Blockchains</searchLink><br /><searchLink fieldCode="DE" term="%22Cryptosystems%22">Cryptosystems</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+forensics%22">Digital forensics</searchLink><br /><searchLink fieldCode="DE" term="%22Internet+of+things%22">Internet of things</searchLink><br /><searchLink fieldCode="DE" term="%22Data+privacy%22">Data privacy</searchLink><br /><searchLink fieldCode="DE" term="%22Data+security%22">Data security</searchLink><br /><searchLink fieldCode="DE" term="%22Edge+computing%22">Edge computing</searchLink><br /><searchLink fieldCode="DE" term="%22Data+encryption%22">Data encryption</searchLink>
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  Label: Abstract
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  Data: Recent investigative frame works, digital forensic tools, and techniques are incapable of acquiring the IoT paradigm's dispersion and heterogeneity characteristics that make law enforcement organizations and digital forensic investigators do their tasks. To address these issues, this study presents a Blockchain-assisted digital forensic system for the IoT context. The devices in the perception layer contain several forensic evidences, which are transmitted to the further layer called the Fog layer. Moreover, the secure transmission of messages from the perception layer to the fog layer is a major challenge. To address this issue, the user's identity (investigators and devices) can be mapped to a pseudo-identity and the security of signature and confidentiality mechanisms ensures both privacy and security. Subsequently, the Fog layer verifies the signature data and employs an improved Blowfish encryption algorithm to provide security to the evidence transmission. In order to encrypt the evidence, the optimal key is generated using the SSAJO algorithm. Then the encrypted message is subjected to a distributed ledger called consortium blockchain that improves the security factors with a greater level of control. Moreover, the proposed IoT framework controls the cloud locally to store, and access data, and performs occasional synchronization with a consortium blockchain. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Intelligent Decision Technologies is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1177/18724981241305872
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      – Code: eng
        Text: English
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        PageCount: 20
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      – SubjectFull: Blockchains
        Type: general
      – SubjectFull: Cryptosystems
        Type: general
      – SubjectFull: Digital forensics
        Type: general
      – SubjectFull: Internet of things
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      – SubjectFull: Data privacy
        Type: general
      – SubjectFull: Data security
        Type: general
      – SubjectFull: Edge computing
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      – SubjectFull: Data encryption
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            NameFull: Sudha, T
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            – D: 01
              M: 09
              Text: Sep2025
              Type: published
              Y: 2025
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