DD-Locker: Blockchain-based Decentralized Personal Document Locker

Abstract

Document verification is the first step whenever we enter any organization or institute. In any organization, it is essential to track, verify, and check the person’s background who will become a part of the organization. This process is very time-consuming and hectic for both parties involved. Various governments provide cloud-based digital locker services for the citizens storing the public document on a centralized server. But due to its centralized nature, this type of service is weak against information breaches and Denial of Service (DoS) attacks. Also, there are some privacy concerns with such centralized digital locker services as the stored documents may contain users’ crucial personal information. This paper proposes a blockchain-based digital locker in a decentralized application using Ethereum Blockchain to securely store personal documents with high availability. The proposed solution also verifies documents with ease, confidentiality, access control, data privacy, authenticity, and maintaining the integrity of documents.