Created
November 7, 2017 12:45
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<?php | |
function addpadding($string, $blocksize = 16) | |
{ | |
$len = strlen($string); | |
$pad = $blocksize - ($len % $blocksize); | |
$string .= str_repeat(chr($pad), $pad); | |
return $string; | |
} | |
function strippadding($string) | |
{ | |
$slast = ord(substr($string, -1)); | |
$slastc = chr($slast); | |
$pcheck = substr($string, -$slast); | |
if(preg_match("/$slastc{".$slast."}/", $string)){ | |
$string = substr($string, 0, strlen($string)-$slast); | |
return $string; | |
} else { | |
return false; | |
} | |
} | |
function encrypt($string = "", $key) | |
{ | |
return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, addpadding($string), MCRYPT_MODE_ECB)); | |
} | |
function decrypt($string = "", $key) | |
{ | |
$string = base64_decode($string); | |
return strippadding(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $string, MCRYPT_MODE_ECB)); | |
} | |
?> |
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