function encoder($x)
{
$value = new hash_encryption($keypass1);
$first = $value->encrypt($x);
$first_output = '';
$count = 0;
while ($count < strlen($encrypted)) {
$enc_output .= substr($first, $count, 80) . "<br>";
$count += 80;
}
$Cipher = new AES();
$key_256bit = $keypass;
$n = ceil(strlen($first) / 16);
$encrypt = "";
for ($i = 0; $i <= $n - 1; $i++) {
$cryptext = $Cipher->encrypt($Cipher->stringToHex(substr($first, $i * 16, 16)), $key_256bit);
$encrypt .= $cryptext;
}
return $encrypt;
}
function securityEncryptString($plaintext)
{
$plaintext = CI::library('encrypt')->encode($plaintext);
$plaintext = base64_encode($plaintext);
return $plaintext;
/*$the_pass = $this->optionsGetByKey ( 'ecnryption_hash', true );
$do_the_pass_needs_change = strtotime ( $the_pass ['updated_on'] );
$yesterday = strtotime ( date ( "Y-m-d H:i:s", time () - 86400 ) );
$the_pass = $the_pass ['option_value'];
if ($yesterday > $do_the_pass_needs_change) {
$the_pass = false;
$this->optionsDeleteByKey ( 'ecnryption_hash' );
}
if (($the_pass) == false) {
$the_pass = rand () . rand ();
$new_key = array ();
$new_key ['option_key'] = 'ecnryption_hash';
$new_key ['option_value'] = $the_pass;
$new_key ['option_group'] = 'security';
$this->optionsSave ( $new_key );
}*/
//$the_pass = intval ( $the_pass );
$string = $plaintext;
require_once 'crypt/class.hash_crypt.php';
$the_pass = CI::library('session')->userdata('session_id');
$crypt = new hash_encryption($the_pass);
$encrypted = $crypt->encrypt($plaintext);
return $encrypted;
}
</td>
</tr>
</table>
<input type="submit" name="encrypt" value="Encrypt playintext" />
</form>
<hr>
<?php
// Did the user submit our form?
if (isset($_POST['encrypt'])) {
$html = '';
// Include class file
require_once 'class.hash_crypt.php';
// Instantiate new hash_encryption object, feed password
$crypt = new hash_encryption($password);
// Do the encryption
$encrypted = $crypt->encrypt($plaintext);
// Convert ciphertext for convenient screen presentation: add linebreak every 80 chars
$encrypted_output = '';
$count = 0;
while ($count < strlen($encrypted)) {
$encrypted_output .= substr($encrypted, $count, 80) . "<br>";
$count += 80;
}
// Prepare html output
$html .= '<p>Ciphertext:</p>';
$html .= '<p style="border: 1px solid black">' . $encrypted_output . '</p>';
$html .= '<p>By the way: The ciphertext decrypts to the following message using your password "' . htmlentities($password) . '":</p>';
// Let's decrypt the ciphertext again
$decrypted = $crypt->decrypt($encrypted);
$html .= '<p style="border: 1px solid black">' . $decrypted . '</p>';
$html .= '<h1 style="font-size:16px">Tip: Try to encrypt your plaintext using the same key several times. You will see that it will generate different ciphertext every time.</h1>';
