PHP / Linux encrypt file

<?php // RAY_encrypt_decrypt.php
error_reporting(E_ALL);

// MAN PAGE: http://php.net/manual/en/ref.mcrypt.php

class Encryption
{
    protected $key;
    protected $eot;
    protected $ivs;
    protected $iv;

    public function __construct($key='quay', $eot='___EOT')
    {
        // SET KEY, DELIMITER, INITIALIZATION VECTOR - MUST BE KNOWN TO BOTH PARTS OF THE ALGORITHM
        $this->key = $key;
        $this->eot = $eot;
        $this->ivs = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
        $this->iv  = mcrypt_create_iv($this->ivs);
    }

    public function encrypt($text)
    {
        // APPEND END OF TEXT DELIMITER
        $text .= $this->eot;

        // ENCRYPT THE DATA
        $data = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->key, $text, MCRYPT_MODE_ECB, $this->iv);

        // MAKE IT base64() STRING SAFE FOR STORAGE AND TRANSMISSION
        return base64_encode($data);
    }

    public function decrypt($text)
    {
        // DECODE THE DATA INTO THE BINARY ENCRYPTED STRING
        $text = base64_decode($text);

        // DECRYPT THE STRING
        $data = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->key, $text, MCRYPT_MODE_ECB, $this->iv);

        // REMOVE END OF TEXT DELIMITER
        $data = explode($this->eot, $data);
        return $data[0];
    }
}

// INSTANTIATE THE CLASS
$c = new Encryption();

// INITIALIZE VARS FOR LATER USE IN THE HTML FORM
$encoded = '';
$decoded = '';

// IF ANYTHING WAS POSTED SHOW THE DATA
if (!empty($_POST["clearstring"]))
{
    $encoded = $c->encrypt($_POST["clearstring"]);
    echo "<br/>{$_POST["clearstring"]} YIELDS ENCODED ";
    var_dump($encoded);
}

if (!empty($_POST["cryptstring"]))
{
    $decoded = $c->decrypt($_POST["cryptstring"]);
    echo "<br/>{$_POST["cryptstring"]} YIELDS DECODED ";
    var_dump($decoded);
}

$form = <<<FORM
<form method="post">
<input name="clearstring" value="$decoded" />
<input type="submit" value="ENCRYPT" />
<br/>
<input name="cryptstring" value="$encoded" />
<input type="submit" value="DECRYPT" />
</form>
FORM;

echo $form;

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class encError{public $Number=0,$Message='No Errors',$fail=false;
public function set($eNum=0,$eMes=''){if($eNum<1){$this->fail=false;$this->Message='No Errors';return;}else$this->fail=true;
$this->Number=$eNum;if($eNum>99)$this->Message='ERROR in Decrypt function: '.$eMes;else$this->Message='ERROR in Encrypt function: '.$eMes;}
}

class macCBC {

function __construct($base64 = false){
$this->base64=$base64;
$this->Error=new encError;
$this->algor='twofish';// 'serpent' 'rijndael-128' 'saferplus' 'loki97'
}

public function encrypt($Plain, $Key){
if((!is_string($Key))||(!isset($Key{15}))){$this->Error->set(10,'Key String length less than SIXTEEN');return false;}
$sLen=strlen($Plain);
if($sLen<4){$this->Error->set(20,'Plain String length less than FOUR');return false;}
if($this->Error->fail)$this->Error->set();
$Key=str_pad($Key,32,chr(8).chr(219).'nH!`'.chr(244).'>;0');
$ivRand=mcrypt_create_iv(12,MCRYPT_RAND);
$chop=substr($ivRand ,6,4);
$check=hash_hmac('crc32b',$Plain,$chop,true);
$chop=15-($sLen%16);
$Plain=chr($chop).$Plain;
$check^=$ivRand{10}.$ivRand{3}.$ivRand{5}.$ivRand{9};
$ivRand.=$check;
$chop=$ivRand{13};
$ivRand{13}=$ivRand{2};
$ivRand{2}=$chop;
$check=str_split($Key,16);
$check[0]^=$ivRand;
$check[1]^=$ivRand;
$Key=$check[1].$check[0];
$Plain=mcrypt_encrypt($this->algor, $Key, $Plain, 'cbc', $ivRand);
if($Plain==''){$this->Error->set(30,'MCRYPT function FAILED');return false;}
$Key=strrev(substr($ivRand,7));
$ivRand=substr($ivRand ,0,7);
$Plain=$Key.$Plain.$ivRand;
if($this->base64){$Plain=base64_encode($Plain);$Plain=str_rot13($Plain);return $Plain;}
return $Plain;
}

public function decrypt($Input, $Key){
if((!is_string($Key))||(!isset($Key{15}))){$this->Error->set(100,'Key String length less than SIXTEEN');return false;}
$sLen=strlen($Input);
if($this->base64){if(($sLen<44)||($sLen%4!=0)){$this->Error->set(300,'Incorrect Base64 length of Input string');return false;}
if(preg_match('/[^a-zA-Z0-9\+\=\/]/',$Input)!=0){$this->Error->set(301,'Incorrect Base64 characters in Input string');return false;}
$Input=str_rot13($Input);$Input=base64_decode($Input);$sLen=strlen($Input);}
if(($sLen<32)||($sLen%16!=0)){$this->Error->set(200,'Input string length is NOT Block Size');return false;}
if($this->Error->fail)$this->Error->set();
$Key=str_pad($Key,32,chr(8).chr(219).'nH!`'.chr(244).'>;0');
$ivRand=substr($Input,$sLen-7);
$chop=strrev(substr($Input,0,9));
$ivRand.=$chop;
$Input=substr($Input,9,-7);
$sLen-=17;
$check=str_split($Key,16);
$check[0]^=$ivRand;
$check[1]^=$ivRand;
$Key=$check[1].$check[0];
$Input=mcrypt_decrypt($this->algor,$Key,$Input,'cbc', $ivRand);
if($Input==''){$this->Error->set(500,'MCRYPT function FAILED');return false;}
$chop=ord($Input[0]);
if($chop>15){$this->Error->set(400,'FAILED to Decrypt correctly; INVALID Output');return false;}
if($chop==0)$Input=substr($Input,1);else $Input=substr($Input,1,$sLen-$chop);
$chop=$ivRand{13};
$ivRand{13}=$ivRand{2};
$ivRand{2}=$chop;
$check=substr($ivRand,12);
$check^=$ivRand{10}.$ivRand{3}.$ivRand{5}.$ivRand{9};
$chop=substr($ivRand ,6,4);
$Key=hash_hmac('crc32b',$Input,$chop,true);
if($check!=$Key){$this->Error->set(400,'FAILED to Decrypt correctly; INVALID MAC');return false;}
return $Input;
}

public function RandKeyText($length=32, $less=true){$out='$key = ';$rand=0;$apos=false;
for($i=0;$i<$length;++$i){if(($less)&&($i&1))$rand=mt_rand(32,127);else$rand=mt_rand(0,255);
	if (($rand>31)&($rand<127)){if(!$apos)$out .='\'';$apos=true;if(($rand==39)|($rand==92))$out .='\\';$out .=chr($rand);}
	else{if($apos)$out .='\'.';$apos=false;$out .='chr('.$rand.').';}}
if($apos)$out .= '\';';else $out[strlen($out)-1]=';';
return htmlspecialchars($out);}

} // end of class macCBC

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$maC = new macCBC();
$key = 'kO*b4Wc+,Ov!dR6$."pIjHtgP3!`B;}d';// use random 32 length key
$plain = file_get_contents('ord2.jpg');
if($encrypted = $maC->encrypt($plain, $key)) {
	$fileName = 'my.data';// can be ANY name and extention
	file_put_contents($fileName, $encrypted);
	echo 'New File made as ',$fileName,' with a size of ',strlen($encrypted),' Bytes.';
	} else echo $maC->Error->Number,'-',$maC->Error->Message,'<hr /><br />';

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