A Private Blockchain-based Distributed Ledger Storage Structure for Enhancing Data Security of Academic Document

Initially the Blockchain technology was used to implement different digital
currencies. Nowadays blockchain is adopted as a common technology to be used in various
business applications. Blockchain based solutions have underlying features like security, tamper
proof, transparency and consensus. Apart from that, history of data can be maintained on a
blockchain network that can be retrieved from any place and at any time. Blockchain provides
immutability which is a solution to avoid faking of certificates. This Paper presents a
blockchain based solution to issue certificates and prevent fake certification by using digital
signature to enhance the data security long with proof of validity smart contract is used to
access the blockchain network with valid key. The proposed permissioned blockchain based
academic certificate repository system provides and manages degree certificates as assets for
educational institutes. Academic certificates and e-certificates can be securely shared and
distributed by students and learning institutes through this application.