nodejs渐入佳境[23]-hash函数

npm install --save crypto-js

const {SHA256} = require('crypto-js');var message = 'I am user number 3';var hash = SHA256(message).toString();console.log(`Message: ${message}`);console.log(`Hash: ${hash}`);

Message: I am user number 3Hash: 9da4d19e100809d42da806c2b7df5cf37e72623d42f1669eb112e23f5c9d45a3

const {SHA256} = require('crypto-js');var data = {  id: 4};var token = {  data,  hash: SHA256(JSON.stringify(data) + 'somesecret').toString()  // 密码+data 并hash}//如果data和密码都是正确的，那么数据没有被修改过。否则数据被修改。var resultHash = SHA256(JSON.stringify(token.data) + 'somesecret').toString();if (resultHash === token.hash) {  console.log('Data was not changed');} else {  console.log('Data was changed. Do not trust!');}

const {SHA256} = require('crypto-js');const jwt = require('jsonwebtoken');var data = {  id: 10};var token = jwt.sign(data, '123abc');   //加密console.log(token);var decoded = jwt.verify(token, '123abc'); //解密console.log('decoded', decoded);

返回值eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6MTAsImlhdCI6MTU0MzM5NzgwMn0.TMQoQEsCuUptXkix0-vYCN5FGJnynj7tSSeMda33giAdecoded { id: 10, iat: 1543397802 }