Php > Miscellaneous

Custom two-way (simple) encryption

Custom two-way (simple) encryption

<?php 


# notepads uber 1337 encryption codez # 


$text = 'A secret.'; 

if(!isset($chars)) 
{ 
    // 3 different symbols (or combinations) for obfuscation 
    // these should not appear within the original text 
    $sym = array('¶', '„xQ', '|'); 

    foreach(range('a','z') as $key=>$val) 
        $chars[$val] = str_repeat($sym[0],($key + 1)).$sym[1]; 
    $chars[' '] = $sym[2]; 

    unset($sym); 
} 

// encrypt 
function encrypt($data) 
{ 
    $data = strtr(strtolower($data), $GLOBALS['chars']); 
    return $data; 
} 

// decrypt 
function decrypt($data) 
{ 
    $charset = array_flip($GLOBALS['chars']); 
    $charset = array_reverse($charset, true); 

    $data = strtr($data, $charset); 
    unset($charset); 
    return $data; 
} 

$text = encrypt($text); 
echo 'encrypted: '.$text.'<br />'; 
// echo 'decrypted: '.decrypt($text); 

?>