Advancements in Information Technology landscape over the past two decades have made the collection, preservation, and analysis of digital evidence an extremely important tool for solving cybercrimes and preparing court cases. Digital evidence plays an important role in cybercrime investigation, as it is used to link individuals with criminal activities. Thus it is of utmost importance to guarantee integrity, authenticity, and auditability of digital evidence as it moves along different levels of hierarchy in the chain of custody during cybercrime investigation. Modern day technology is more advanced in terms of portability and power. A huge amount of information is generated by billions of devices connected to the internet that needs to be stored and accessed, thus posing great challenges in maintaining the integrity and authenticity of digital evidence for its admissibility in the court of law. Handling digital evidences poses unique challenges because of the fact they are latent, volatile, fragile, can cross jurisdictional borders quickly and easily and in many cases can be time/machine dependent too. Thus guaranteeing the authenticity and legality of processes and procedures used to gather and transfer the evidence in a digital society is a real challenge. Blockchain technology's capability of enabling comprehensive view of transactions (events/actions) back to origination provides enormous promise for the forensic community. In this research we proposed Forensic-Chain: A Blockchain based Digital Forensics Chain of Custody, bringing integrity and tamper resistance to digital forensics chain of custody. We also provided Proof of Concept in Hyperledger Composer and evaluated its performance.

过去二十年来，随着信息技术的发展，数字证据的收集，保存和分析已成为解决网络犯罪和准备案件的极其重要的工具。数字证据在网络犯罪调查中起着重要作用，因为它被用于将个人与犯罪活动联系起来。因此，当数字证据在网络犯罪调查过程中沿着羁押链中不同层次的层次移动时，保证数字证据的完整性，真实性和可审计性至关重要。就便携性和功能而言，现代技术更加先进。连接到互联网的数十亿个设备需要存储和访问，因此产生了大量信息，因此，在维护数字证据在法​​庭上的可采性方面，面临着巨大的挑战。处理数字证据带来了独特的挑战，因为它们是潜在的，易变的，脆弱的，可以快速，轻松地跨越管辖范围，而且在许多情况下还可能依赖时间/机器。因此，确保数字社会中用于收集和转移证据的过程和程序的真实性和合法性是一个真正的挑战。区块链技术能够全面追溯交易（事件/动作）的起源，为法医界提供了广阔的前景。在这项研究中，我们提出了取证链：基于区块链的数字取证监管链，为数字取证监管链带来完整性和防篡改功能。我们还在Hyperledger Composer中提供了概念证明，并评估了其性能。