class HtSecurity extends Object
{
/**
* 生成短连接
* @param $OtaUrl string URL地址
* @return int|false
*/
public static function encrypt($input, $key)
{
//将16进制字符串转为正常的字符窜
$key=self::hexToStr($key);
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
$input = self::pkcs5_pad($input, $size);
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
mcrypt_generic_init($td, $key, $iv);
$data = mcrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
//字符串转为16进制
$data=strtoupper(bin2hex($data));
return $data;
}
private static function pkcs5_pad($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static function decrypt($sStr, $sKey)
{
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $sKey, base64_decode($sStr), MCRYPT_MODE_ECB);
$dec_s = strlen($decrypted);
$padding = ord($decrypted[$dec_s - 1]);
$decrypted = substr($decrypted, 0, -$padding);
return $decrypted;
}
/**
* 十六进制转字符串
* 16进制的转为2进制字符串
* @param 十六进制 $hex
* @return string
*/
private function hexToStr($hex)
{
$string = "";
for ($i = 0; $i < strlen($hex) - 1; $i += 2)
$string .= chr(hexdec($hex[$i] . $hex[$i + 1]));
return $string;
}
}
//随便加
//字符串转为16进制
$data = strtoupper(bin2hex($data));