国外java phpphp版des加密解密，真正可⽤，兼容java ⽹上搜⼀⼤堆，n多⽤不了，⾃⼰修改了下，对接java
class SecretUtilTools
{
/**
* 解密函数
* 算法：des
* 加密模式：ecb
* 补齐⽅法：PKCS5
* @param unknown_type $input
*/
public static  function encryptForDES($input,$key)
{
$size = mcrypt_get_block_size('des','ecb');
$input = self::pkcs5_pad($input, $size);
$td = mcrypt_module_open('des', '', '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);
$data = base64_encode($data);
return $data;
}
public static  function decryptForDES($input,$key)
{
$input = base64_decode($input);
$size = mcrypt_get_block_size('des','ecb');
$td = mcrypt_module_open('des', '', 'ecb', '');
$iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
@mcrypt_generic_init($td, $key, $iv);
$data = mdecrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
$data = self::pkcs5_unpad($data, $size);
return $data;
}
public static  function pkcs5_pad ($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static  function pkcs5_unpad($text)
{
$pad = ord($text{strlen($text)-1});
if ($pad > strlen($text))
{
return false;
}
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad)
{
{
return false;
}
return substr($text, 0, -1 * $pad);
}
}
$mstr = SecretUtilTools::encryptForDES('blog.csdn/qq43599939' , 'qq43599939'); var_dump($mstr);
$str = SecretUtilTools::decryptForDES($mstr, 'qq43599939');
var_dump($str);
效果：
string(56) "XQMGxYrb36EmpA4xN1CVnYvwKRzvbjeCSu8YzDUitHaJ/n9hf8M9sA=="
string(32) "blog.csdn/qq43599939"

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