求大位帮忙将这段代码转成ASP,没完成会被开除,5555...

[sbamdanb00]

下面这段是PHP的DES加解密函数,由于不熟PHP周一没完成只能被开除,急求大家帮忙.

几组明码及加密后的数据，使用密钥12345678,向量使用12345678进行加密及解密：
明：abc ；密：9YR6ZPdZufM=
明：ABC ；密：N3crakN1e3w=
明：中国人 ；密：qMeKyoDWvsE=
明：在那遥远的地方 ；密：6rtTnrF34mPkJ5SO3RiaaQ==

因为是与服务端通讯,如果ASP代码运行结果和上面不符则不能正常通讯,再次谢谢大家!!!!!


class DES
{
var $key;
var $iv; //偏移量

function DES($key, $iv=0)
{
$this->key = $key;
if($iv == 0)
{
$this->iv = $key;
}
else
{
$this->iv = $iv;
}
}

//加密
function encrypt($str)
{
$size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC );
$str = $this->pkcs5Pad ( $str, $size );

$data=mcrypt_cbc(MCRYPT_DES, $this->key, $str, MCRYPT_ENCRYPT, $this->iv);
//$data=strtoupper(bin2hex($data)); //返回大写十六进制字符串
return base64_encode($data);
}

//解密
function decrypt($str)
{
$str = base64_decode ($str);
//$strBin = $this->hex2bin( strtolower($str));
$str = mcrypt_cbc(MCRYPT_DES, $this->key, $str, MCRYPT_DECRYPT, $this->iv );
$str = $this->pkcs5Unpad( $str );
return $str;
}

function hex2bin($hexData)
{
$binData = "";
for($i = 0; $i < strlen ( $hexData ); $i += 2)
{
$binData .= chr(hexdec(substr($hexData, $i, 2)));
}
return $binData;
}

function pkcs5Pad($text, $blocksize)
{
$pad = $blocksize - (strlen ( $text ) % $blocksize);
return $text . str_repeat ( chr ( $pad ), $pad );
}

function pkcs5Unpad($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 );
}
}

$str = 'abc';
$key= '12345678';
$crypt = new DES($key);
$mstr = $crypt->encrypt($str);
$str = $crypt->decrypt($mstr);

echo $str.' <=> '.$mstr;

[sbamdanb00]

这个加解密有点像是3des