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DOI: 10.4230/OASIcs.Tokenomics.2019.12
B-CoC: A Blockchain-Based Chain of Custody for Evidences Management in Digital Forensics

Authors: Silvia Bonomi, Marco Casini, and Claudio Ciccotelli

Published in: OASIcs, Volume 71, International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2019)

Abstract
One of the main issues in digital forensics is the management of evidences. From the time of evidence collection until the time of their exploitation in a legal court, evidences may be accessed by multiple parties involved in the investigation that take temporary their ownership. This process, called Chain of Custody (CoC), must ensure that evidences are not altered during the investigation, despite multiple entities owned them, in order to be admissible in a legal court. Currently digital evidences CoC is managed entirely manually with entities involved in the chain required to fill in documents accompanying the evidence. In this paper, we propose a Blockchain-based Chain of Custody (B-CoC) to dematerialize the CoC process guaranteeing auditable integrity of the collected evidences and traceability of owners. We developed a prototype of B-CoC based on Ethereum and we evaluated its performance.
Cite as

Silvia Bonomi, Marco Casini, and Claudio Ciccotelli. B-CoC: A Blockchain-Based Chain of Custody for Evidences Management in Digital Forensics. In International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2019). Open Access Series in Informatics (OASIcs), Volume 71, pp. 12:1-12:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{bonomi_et_al:OASIcs.Tokenomics.2019.12,
  author =	{Bonomi, Silvia and Casini, Marco and Ciccotelli, Claudio},
  title =	{{B-CoC: A Blockchain-Based Chain of Custody for Evidences Management in Digital Forensics}},
  booktitle =	{International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2019)},
  pages =	{12:1--12:15},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-108-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{71},
  editor =	{Danos, Vincent and Herlihy, Maurice and Potop-Butucaru, Maria and Prat, Julien and Tucci-Piergiovanni, Sara},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.Tokenomics.2019.12},
  URN =		{urn:nbn:de:0030-drops-119767},
  doi =		{10.4230/OASIcs.Tokenomics.2019.12},
  annote =	{Keywords: Digital Forensics, Chain of Custody, Digital Evidence, Private Blockchain, Ethereum}
}
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