非对称数字签名Node.JS

const crypto = require('crypto');

// 生成密钥对
const { publicKey, privateKey } = crypto.generateKeyPairSync('rsa', {
  modulusLength: 2048,
});

// 要签名的数据
const data = 'Hello, world!';

// 使用私钥签名
const sign = crypto.createSign('SHA256');
sign.update(data);
const signature = sign.sign(privateKey, 'hex');

// 使用公钥验证签名
const verify = crypto.createVerify('SHA256');
verify.update(data);
const isVerified = verify.verify(publicKey, signature, 'hex');

console.log(`签名：${signature}`);
console.log(`验证结果：${isVerified}`);