/blockchain-academic-certificate-global-verify

Academic Certificate Issuing and Global Search using Blockchain

Primary LanguageJavaScript

Academic Certificate Issuing and Global Search using Private Ethereum Blockchain and SQLite

Features

  • Issue UniqueID to recipients
  • Publish Certificate in Blockchain
  • Get all the certificate issued to a particular recipient at on click

Issue UniqueID

  • User is requested to enter some details like name, email, password etc
  • He/she is given a automatically generated ID which is their UniqueId

Publish Certificate

  • The institution will ask the recipient for their UniqueID, without which the certificate cannot be published.
  • The institution will have to enter some details and the PDF of the certificate along with the UniqueID and click Publish.
  • If the UniqueID is valid, the certificate along with all the details will be published onto the blockchain.

Search using UniqueID

  • Enter the valid UniqueID and click Search and all the issued certificates will be listed.

Tools Used

  • Truffle
  • Ethereum
  • NodeJS
  • MetaMask
  • SQLite
  • Flask

Languages Used

  • Solidity
  • JavaScript
  • Python 3

Steps to replicate result

  • Clone the directory
foo@bar:~$ git clone git@github.com:sampatghosh/blockchain-academic-certificate-global-verify.git
  • Set up Truffle
foo@bar:~$ npm install -g truffle
  • Navigate to the project directory:
foo@bar:~$ cd blockchain-academic-certificate-global-verify
  • Compile Contract
foo@bar:~/blockchain-academic-certificate-global-verify$ truffle compile
  • Setup private blockchain using geth, create account and generate fake Ether for your account
  • Start your node using:
foo@bar:~$ geth --datadir ./blockchain --networkid 2018 --rpc --nodiscover --rpc --rpcport 8545 --rpcaddr 127.0.0.1 --maxpeers=0 --rpccorsdomain "*" --rpcapi "personal,eth,net,web3,debug,miner" --allow-insecure-unlock --password <(echo __password__) --unlock 0
  • Open geth console and start mining:
foo@bar:~$ geth attach http://127.0.0.1:8545
Welcome to the Geth JavaScript console!

instance: Geth/v1.9.14-stable-6d74d1e5/linux-amd64/go1.14.2
coinbase: 0x7c5c723cd38eeb2d2975dc241fa0a54a9f0ff3da
at block: 2931 (Sun Jun 07 2020 14:27:14 GMT+0530 (IST))
datadir: /home/sampatghosh/blockchain
modules: admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
> miner.start()
  • Deploy Contract and note the contract address
foo@bar:~/blockchain-academic-certificate-global-verify$ truffle migrate
  • Write the contract address at line 3 in app.js

var address = "0xA5FB32b226ECC34fF4AA81D0DB1F2eF324378C31";

  • Setup MetaMask and import account from blockchain directory

  • Run database API

foo@bar:~$ python3 /blockchain-academic-certificate-global-verify/webapp/api/api.py
  • Run Node.js server and click on main.html
foo@bar:~$ http-server blockchain-academic-certificate-global-verify/webapp/ -c-1
  • To Search all the details of all certificates issued to a particular student then go to search.html and enter UniqueID and click Search
  • To Create new UniqueID click on uniqueID.html
  • To Publish Certificate click on publish.html