fido2 + smart contract

[osricpan]

const Web3 = require('web3'); const contractABI = require('./contractABI'); // 导入智能合约的ABI const fido2 = require('fido2-lib');

// 连接到以太坊网络 const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

// 设置以太坊账户私钥和合约地址 const privateKey = 'YOUR_PRIVATE_KEY'; const contractAddress = 'YOUR_CONTRACT_ADDRESS';

// 创建合约实例 const contract = new web3.eth.Contract(contractABI, contractAddress);

// 调用智能合约的方法 async function callContractMethod() { try { // FIDO2身份认证 const authenticator = new fido2.ClientPin({ authenticator: { attachment: 'platform', transport: 'usb' } });

const credentials = await authenticator.getAssertion();

// 验证身份认证是否成功
if (credentials) {
  const account = web3.eth.accounts.privateKeyToAccount(privateKey);
  const data = contract.methods.myMethod().encodeABI();
  const gasPrice = await web3.eth.getGasPrice();

  const transaction = {
    from: account.address,
    to: contractAddress,
    gas: 500000,
    gasPrice: gasPrice,
    data: data
  };

  const signedTransaction = await account.signTransaction(transaction);
  const receipt = await web3.eth.sendSignedTransaction(signedTransaction.rawTransaction);
  console.log('交易收据:', receipt);
} else {
  console.log('FIDO2身份验证失败');
}

} catch (error) { console.error('错误:', error); } }

// 调用智能合约方法 callContractMethod();