文档地址：https://github.com/ricmoo/aes-js#readme

下面是官方文档 demo 代码

const aesjs = require('aes-js'); // An example 128-bit key var key = [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 ];  // The initialization vector (must be 16 bytes) var iv = [ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,35, 36 ];  // Convert text to bytes (must be a multiple of the segment size you choose below) var text = 'TextMustBeAMultipleOfSegmentSize'; var textBytes = aesjs.utils.utf8.toBytes(text);  // The segment size is optional, and defaults to 1 var segmentSize = 8; // console.log(iv); //  var aesCfb = new aesjs.ModeOfOperation.cfb(key, iv, segmentSize); // var encryptedBytes = aesCfb.encrypt(textBytes);  // To print or store the binary data, you may convert it to hex var encryptedHex = aesjs.utils.hex.fromBytes(encryptedBytes); console.log(encryptedHex); // "55e3af2638c560b4fdb9d26a630733ea60197ec23deb85b1f60f71f10409ce27"  // When ready to decrypt the hex string, convert it back to bytes var encryptedBytes = aesjs.utils.hex.toBytes(encryptedHex);  // The cipher feedback mode of operation maintains internal state, // so to decrypt a new instance must be instantiated. var aesCfb = new aesjs.ModeOfOperation.cfb(key, iv, 8); var decryptedBytes = aesCfb.decrypt(encryptedBytes);  // Convert our bytes back into text var decryptedText = aesjs.utils.utf8.fromBytes(decryptedBytes); console.log(decryptedText); // "TextMustBeAMultipleOfSegmentSize" 

• 怎么改造下用 php 来写?

<?php // 加密算法 $encryptMethod = 'aes-128-cfb'; // 明文数据 $data = 'TextMustBeAMultipleOfSegmentSize'; $secret = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; // 生成 IV $ivLength = openssl_cipher_iv_length($encryptMethod); $iv = openssl_random_pseudo_bytes($ivLength, $isStrong); if (false === $iv && false === $isStrong) {  die('IV generate failed'); } // 加密 $encrypted = openssl_encrypt($data, $encryptMethod, $secret, 8, $iv);