BLOCKCHAIN-BASED FRAMEWORK FOR ENHANCING THE INTEGRITY OF ONLINE EXAMINATION RESULTS

In recent years, Learning Management Systems (LMS) have acquired substantial appeal, notably because to the COVID-19 pandemic, delivering greater efficacy and efficiency. Within LMS, online tests have evolved as a crucial instrument for measuring students’ performance and knowledge of course content, playing a vital part in deciding their development. It is critical that online test results be both trustworthy and easily accessible. Students' grades might be negatively affected by any security flaw, such hacking. Conventional online test systems frequently store data centrally in databases like MySQL, leaving them subject to unwanted access and modification. Secure, peer-to-peer administration and assessment of academic tests is made possible in this article using a blockchain-based infrastructure. To guarantee data integrity, the framework utilises hashing algorithms. To strengthen security, it incorporates proof of stake processes. Blockchain effectively protects data integrity due to its decentralised data storage and the use of cryptographic hashing for each block. The study illustrates the usage of blockchain for designing online tests, recording each question and response directly on the blockchain. We were able to do this by developing a module that communicates with Moodle, an LMS. By comparing it to Moodle's default centralised storage, our addon alters the storage of exam results, making the data stored on the blockchain safe and impenetrable. Exam data is securely encrypted using the blockchain, which prevents tampering and ensures its integrity. Based on our findings, there are no inconsistencies when comparing data saved on the blockchain to Moodle's conventional method. To safeguard student information from tampering, the blockchain network offers a trustworthy and unchangeable platform. Finally, our blockchain-based paradigm provides a strong answer to the problem of how to make online test scores more secure and trustworthy. We guarantee data integrity and transparency by using blockchain's decentralised and tamper-proof nature. This allows for a more reliable evaluation of academic achievement.