rhythm-3099 / secure-ballot-cse-598

Our project for CSE-598 Engineering Blockchain Applications

Secure Ballot

Social Security Based voting system using blockchain technology Project implemented as part of our course CSE 598 (Engineering Blockchain Applications)

Description

• The authority must login first with the provided session ID (Use username: admin and password: password for testing).
• The voter can now begin the process of voting with proper authentication through OTP(one time password) on the respective linked mobile number (use SSN: 123456789, OTP: 123456).
• the voting ballot will be opened with candidate names,their parties and logos.
• Now the voter can give his vote by clicking vote button.
• One voter can give his vote only once,i.e after one time voting buttons are disabled and the vote is automatically logged out.

Installing and Running Project

Install Dependencies

npm install

Running Project

node index.js

If dependency problem occurs delete package.json, Run

npm init

Again Install dependencies and run project.

Running Project

Step 1 - Setting up Environment Instead of developing the app against the live Ethereum blockchain, we have used a local blockchain (think of it as a blockchain simulator) called ganache-cli.

npm install web3

npm install -g ganache-cli

Step 2 - Creating Voting Smart Contract

npm install solc

Step 3 - Testing in node console

Not required just for testing in node console- After writing our smart contract, we'll use Web3js to deploy our app and interact with it

$ node
> Web3 = require('web3')
> web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
Then ensure Web3js is initalized and can query all accounts on the blockchain

> web3.eth.accounts
Lastly, compile the contract by loading the code from Voting.sol in to a string variable and compiling it

> code = fs.readFileSync('Voting.sol').toString()
> solc = require('solc')
> compiledCode = solc.compile(code)

Deploy the contract!

> abiDefinition = JSON.parse(compiledCode.contracts[':Voting'].interface)
> VotingContract = web3.eth.contract(abiDefinition)
> byteCode = compiledCode.contracts[':Voting'].bytecode
>deployedContract = VotingContract.new({data: byteCode, from: web3.eth.accounts[0], gas: 4700000})
> deployedContract.address
> contractInstance = VotingContract.at(deployedContract.address)

Step 4 - Interacting with the Contract via the Nodejs Console

> contractInstance.totalVotesFor.call('Eddard Stark').toLocaleString()
'2'

Purpose of test

• The authority login is to ensure security to prevent piracy, harassment and corruption from candidates standing in election.
• OTP generation is to authenticate the right social security number owner.
• button disabling and automatic logout is to prevent multiple voting by single candidate.

Authors

• Rhythm Patel
• Krutik Parmar
• Rohit Patil

License

This project is licensed under the MIT License - see the LICENSE file for details