海运的博客

PHP:

<?php
function rc4($key, $str) {
  $s = array();
  for ($i = 0; $i < 256; $i++) {
    $s[$i] = $i;
  }
  $j = 0;
  for ($i = 0; $i < 256; $i++) {
    $j = ($j + $s[$i] + ord($key[$i % strlen($key)])) % 256;
    $x = $s[$i];
    $s[$i] = $s[$j];
    $s[$j] = $x;
  }
  $i = 0;
  $j = 0;
  $res = '';
  for ($y = 0; $y < strlen($str); $y++) {
    $i = ($i + 1) % 256;
    $j = ($j + $s[$i]) % 256;
    $x = $s[$i];
    $s[$i] = $s[$j];
    $s[$j] = $x;
    $res .= $str[$y] ^ chr($s[($s[$i] + $s[$j]) % 256]);
  }
  return $res;
}
echo bin2hex(rc4('key', 'str'));

易语言：

字节集_到十六进制 (加密数据 (到字节集 (编码_gb2312到utf8 (“str”)), “key”, #RC4算法))
字节集_到十六进制 (编码_RC4加密 (到字节集 (编码_gb2312到utf8 (“str”)), “key”))

 function securityEncode(a, b, c) {
     var e = '',
         f,
         g,
         h,
         k,
         l = 187,
         n = 187;
     g = a.length;
     h = b.length;
     k = c.length;
     f = g > h ? g : h;
     for (var p = 0; p < f; p++) n = l = 187,
         p >= g ? n = b.charCodeAt(p) : p >= h ? l = a.charCodeAt(p) : (l = a.charCodeAt(p), n = b.charCodeAt(p)),
         e += c.charAt((l ^ n) % k);
     return e
 }

 securityEncode('RDpbLfCPsJZ7fiv', 'password', 'yLwVl0zKqws7LgKPRQ84Mdt708T1qQ3Ha7xv3H7NyU84p21BriUWBU43odz3iP4rBL3cD02KZciXTysVXiV8ngg6vL48rPJyAUw0HurW20xqxv9aYb4M9wK1Ae0wlro510qXeU07kV57fQMc8L6aLgMLwygtc0F10a0Dg70TOoouyFhdysuRMO51yY5ZlOZZLEal1h0t9YQW0Ko7oBwmCAHoic4HYbUyVeU3sfQ1xtXcPcf1aT303wAQhv66qzW')