PHP与JS中crypto.js的一些备注（记录）

PHP 

$h2_rand =  RndNum('12');

$h2_key = 'yytkjfgzmnklfgyy';

$h2_take = urlencode(ecbEncrypt($h2_key,PaddingPKCS7($h2_rand)));

function ecbEncrypt($key = "", $encrypt) {

       $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128 , MCRYPT_MODE_ECB), MCRYPT_RAND);

       $decrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128 , $key, $encrypt, MCRYPT_MODE_ECB, $iv);

       $encode = base64_encode($decrypted);

       return $encode;

}

 

function PaddingPKCS7($input) {

 $srcdata = $input;

 $block_size = mcrypt_get_block_size('tripledes', 'ecb');

 $padding_char = $block_size - (strlen($input) % $block_size);

 $srcdata .= str_repeat(chr($padding_char),$padding_char);

 return $srcdata;

}

function RndNum($n){

   $rnd = "" ;

   for($i=0;$i<$n;$i++)

       $rnd .= floor(mt_rand(0,9));

   return $rnd;

}

JS 

/**

* 加密（需要先加载lib/aes/aes.min.js文件）https://cdn.bootcss.com/crypto-js/3.1.9-1/crypto-js.min.js

* @param word

* @returns {*}

*/

function encrypt(word){

   var key = CryptoJS.enc.Utf8.parse("yytkjfgzmnklfgyy");

   var srcs = CryptoJS.enc.Utf8.parse(word);

   var encrypted = CryptoJS.AES.encrypt(srcs, key, {mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7});

   return encrypted.toString();

}

//产生随机数函数

function RndNum(n){

   var rnd="";

   for(var i=0;i<n;i++)

       rnd+=Math.floor(Math.random()*10);

   return rnd;

}

-------------------------------------------

php

/**

  *

  * @param string $string 需要加密的字符串

  * @param string $key 密钥

  * @return string

  */

 function encrypt($string, $key)

 {

   // openssl_encrypt 加密不同Mcrypt，对秘钥长度要求，超出16加密结果不变

   $data = openssl_encrypt($string, 'AES-128-ECB', $key, OPENSSL_RAW_DATA);

   return base64_encode($data);

 }

 /**

  * @param string $string 需要解密的字符串

  * @param string $key 密钥

  * @return string

  */

 function decrypt($string, $key)

 {

   return openssl_decrypt(base64_decode($string), 'AES-128-ECB', $key, OPENSSL_RAW_DATA);

 }

 /**

  * 获取秘钥

  * @return string

  */

function getSecretKey()

 {

   $str='xxx';//生成16位的字符窜

   return $str;

}

JS:

<script type="text/javascript" src="./bower_components/crypto-js/crypto-js.js"></script>

<script type="text/javascript">

 AesKey = 'xxxxx';//加密时用的key,跟php一样

 message='xxxxxxx';//加密后的字符窜

 var ECBOptions = {

   mode: CryptoJS.mode.ECB,

   padding: CryptoJS.pad.Pkcs7

 };

 var key = CryptoJS.enc.Utf8.parse(AesKey);

 var bytes = CryptoJS.AES.decrypt(message, key,ECBOptions);

 var originalText = bytes.toString(CryptoJS.enc.Utf8);

 console.log(originalText)

</script>

其他参考：https://www.cnblogs.com/lz2017/p/8046816.html