Untitled

<html>
<head>
</head>
<body>


            <form method="post" action="">

                        <input type="username" name="username" placeholder="Enter email"  /> <br>

                        <input type="password" name="password" placeholder="Enter Password" />

                <button type="submit" name="submit">LOG IN</button>
            </form>


<?php
if(isset($_POST['submit']))
{
$username = (isset($_POST['username']) ? $_POST['username'] : '');
$password = (isset($_POST['password']) ? $_POST['password'] : '');

$encrypted = encryptIt( $password );
$decrypted = decryptIt( $encrypted );

echo $encrypted . '<br />' . $decrypted;

function encryptIt( $q ) {
$cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
$qEncoded      = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), $q, MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ) );
return( $qEncoded );
}

function decryptIt( $q ) {
$cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
$qDecoded      = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), base64_decode( $q ), MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ), "");
return( $qDecoded );
}
}
?>