**CampusVote – Decentralized Voting System for Campus Elections** **# Overview** CampusVote is a secure, decentralized voting platform used for campus elections. It utilizes blockchain technology(.sol) to ensure transparent, tamper-proof voting, allowing students to cast their votes digitally with verifiable integrity. **# Features Built** _**Blockchain Integration**_ Smart Contracts developed with Hardhat and Solidity Voting logic deployed on a local Ethereum-compatible blockchain (e.g., Hardhat/Ethereum testnet) Contract functions: Add candidate Vote for candidate View vote counts _**Secure Login System**_ Clerk Authentication integrated Student login with Stud DB email-based OTP verification Admin(superuser) login secured to prevent unauthorized access Role-based login and access system (Student/Admin) _**Frontend UI** _ Built with Next.js, React, Tailwind CSS, and Ethers.js Separate dashboards for Students and Admins Student: See candidate list and cast votes Admin: View results, manage elections MetaMask wallet integration (for alternate future login) _**Backend + Blockchain Integration** _ Smart contracts connected to the interface using ethers.js Frontend and backend tested with local Hardhat node Deployed wallet-connected voting transactions with feedback messages **Tech Stack** Layer Tech/Tool Frontend Next.js, React, Tailwind CSS Backend Node.js (Express optional), Ethers.js Blockchain Hardhat, Solidity Auth Clerk (OTP Email Login) Wallet MetaMask (for blockchain transactions) Versioning GitHub **Team** Fantastic 4 Sanket Rajput (Lead Dev) Atharv Navatre Vaibhav Yadav Pruthviraj Gavhane **User Flow: CampusVote Voting Process** _1. Sign In (Student Login via OTP or Clerk)_ User enters their Student ID/email. An OTP is sent to the registered email. On successful OTP verification, the user is authenticated via Clerk. _2. Connect Wallet (MetaMask Integration)_ After sign-in, the student is prompted to connect their MetaMask wallet. The wallet is verified on-chain (e.g., through a signed message or event). This step ties the student’s voting identity to a unique wallet address. _3. Check Voting Status (One-Person-One-Vote)_ The system checks if this wallet address (or student ID) has already voted: On-chain: Check a smart contract mapping (e.g., hasVoted[address] == true) Off-chain (optional): Cross-check with the student ID stored during sign-in _4. Cast Vote_ User selects their candidate. The vote is recorded on the blockchain via a smart contract function like castVote(candidateId). The voter’s address is marked as voted, preventing future votes. # cvdeploy