Design, Analysis and Implementation of Online Competitive Examination Using Heterogeneous Consortium Blockchain

Abstract

This paper provides an alternative design, analysis and implementation of present E-examination system using concepts of consortium blockchain mixed with public blockchain concepts like PoW consensus protocol giving a heterogeneous solution which is more secure in terms of data mutability of the candidates. The experiment performed propose a decentralized application(D-APP) which use SHA-256 hashing cryptography to encode the blocks. Also, it covers the core concepts of distributed ledger containing student details in a decentralized network of examination centers forming different levels of blockchain and how it's distribution throughout the network. The proposed model diversifies the future of blockchain in the field of education.