EVIDENCE VAULT: BLOCKCHAIN AND IPFS ENHANCED SECURITY SYSTEM

Abstract

Crime is an illegal activity that is punished by the government, evidence is required to prove
the crime. The evidence gained from a crime place is crucial because it serves as proof of the offense. The
digitization of evidence is an urgent necessity. In the digital era, the management and integrity of crime
evidence present substantial challenges due to risks of tampering and loss of data integrity. Throughout the
investigation process, heterogeneous data formats are generated, and the integrity of sensitive data must be
maintained as it passes through the various levels of intermediaries that form the Chain of Evidence (CoE). The
evidence needs to be tamper-proof and protected against any alterations. To build robust systems with
immutability, integrity, and legitimacy, blockchain technology is superior. Using blockchain technology, digital
evidence can be transferred between parties without a central authority in a transparent manner. We focused on
how blockchain based solutions can help in building a strong secure system. The system is implemented using
Ethereum platform to achieve integrity, immutability transparency as well as tampering can be identified by any
one at any time. This project explores the integration of blockchain to ensure the authenticity, traceability, and
non-repudiation of digital evidence, while employing IPFS to enhance data availability and fault tolerance.