解密处理是乱码

[zhuijing]

`const crypto = require('crypto');
// 支付宝接口返回
var data = "4m4HcVZR14pvTtmNbqgkH3qtmLhJpCZx6oi6u2stmGUo2Z3OmKhtHF/VaiFQ023pKJvhXwSRVjC3IBaotOduxO/zIrIqfg+xnvBWY2zYC/UDLPbsm66yz8omvQLRBGsP8MHYLaOFEgFUgREOCa8AKH7u9v6YlnTIdp1XZGGZnKydissMwTiU4xrM5quZnFwqgTSXmCzSEfeHfjr4qTO+pLGRfY/0J/U932FCq012udkj0pA1UspfCnUU4LY8z3AiPr63TKS4ZEj5Pxz5x7beTf5pGQDrrFHaB87/dbbo8V/143RalmWsyNTiKlAA6S8OO4uXtL6tkYXCddyYQnk6waYqrZOgJLnVS5o9PLzzChU="
// 支付小程序配置
var aes = 'Lj59Ubk1ZyzlUZGTKgTl6A==';
var response = Buffer.from(data,'base64') ;
var aes1 = Buffer.from(aes,'base64');

console.log('aes1 :', aes1);
var iv = Buffer.alloc(aes1.length, '\0');
const aesDecode = function (data, key) {
let src = '';
const decipher = crypto.createCipheriv('aes-128-cbc', key, iv);
src += decipher.update(data);
src += decipher.final('utf8');
return src;
};
// ascii utf8 utf16le base64 latin1 hex
console.log('encode_aes128(response) :',aesDecode(response,aes1));
`