Ragu Gnanaprakasam; Ramamoorthy Sriramulu; Poorvadevi Ramamoorthy; Mervin Retnadhas

Innovative Forensics in IoT Clouds by Leveraging Blockchain for Data Integrity and Security

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Author(s)

Ragu Gnanaprakasam ^1,* Ramamoorthy Sriramulu ¹ Poorvadevi Ramamoorthy ² Mervin Retnadhas ³

1. Department of Computing Technologies, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu District 603203, Tamil Nadu, India

2. SRM Institute of science and Technology, Kattankulathur, Chengalpattu, India

3. Department of Information Technology, College of Computing and Informatics, Saudi Electronic University, Riyadh, Saudi Arabia

* Corresponding author.

DOI: https://doi.org/10.5815/ijcnis.2026.01.08

Received: 19 Aug. 2025 / Revised: 20 Sep. 2025 / Accepted: 16 Oct. 2025 / Published: 8 Feb. 2026

Index Terms

Forensic Data, Blockchain, Cloud Storage, Security, SBLaaS

Abstract

The Internet of Things and cloud computing are expanding at a very rapid rate, which has posed a great challenge in maintaining data security and integrity, particularly during forensic investigation. The conventional logging mechanisms are prone to manipulation, unreliable, and difficult to verify the digital evidence. In response to these problems, a blockchain-based system is suggested to facilitate the security and reliability of forensic data stored on cloud-based environments, which is related to IoT devices. The decentralized storage is paired with the smart contract technology to form an immutable version of the cloud communications to make sure that the evidence is unaltered to guarantee its verifiability. It further has a safe off-chain storage system enabling swift records and recalls of massive forensic records. The enormous amount of experimentation has demonstrated that the system minimizes the verification times to about 28 to 39 milliseconds. It is quicker than the methods that are currently in place and has high data integrity. The framework enhances transaction throughput as well as provides scalable solution to preserve forensic evidence. It has offered a feasible and reliable platform to enhance the security, visibility and reliability of forensic data within intricate IoT and cloud environments. These characteristics aid law enforcement groups and forensic investigators in having effective and credible investigations.

Cite This Paper

Ragu Gnanaprakasam, Ramamoorthy Sriramulu, Poorvadevi Ramamoorthy, Mervin Retnadhas, "Innovative Forensics in IoT Clouds by Leveraging Blockchain for Data Integrity and Security", International Journal of Computer Network and Information Security(IJCNIS), Vol.18, No.1, pp.116-130, 2026. DOI:10.5815/ijcnis.2026.01.08

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