SecureNEET: A Blockchain-Enabled, AI-Powered Examination Management and Learning Platform

Question paper leakage threatens the credibility of national-level examinations such as the National Eligibility cum Entrance Test (NEET). Conventional systems rely on centralized storage and manual distribution of papers, exposing them to insider threats, cyberattacks and early access, while students depend on several disconnected platforms for preparation. This paper presents SecureNEET, a blockchain-enabled, AI-powered examination management and learning platform with an Admin web application, an Exam Center web application and a Student Flutter mobile application sharing a Django backend and a MySQL database. Random NEET-format papers are generated from a Question Bank populated with Admin-approved, AI-generated questions. Each paper is protected with SHA-256 hashing and AES-256-CBC encryption, bound to an auto-decrypt time, and its hash and a unique QR token are recorded on an Ethereum blockchain through a Solidity smart contract. An Exam Center can download a paper only after the release time and after QR and 6-digit email OTP verification, and every attempt is logged for the Admin. Students are verified using face recognition with 128-dimensional dlib ResNet embeddings and ID proof, and login activity is monitored by rule-based anomaly detection. The Student application provides a Retrieval-Augmented Generation (RAG) chatbot, AI quick-revision summaries, AI mock tests and previous-year papers. SecureNEET thus combines secure examination management with continuous student preparation in a single platform