<?php
/*************************************************************
* This script is developed by Arturs Sosins aka ar2rsawseen, http://webcodingeasy.com
* Feel free to distribute and modify code, but keep reference to its creator
*
* Inkblot auth class allows to implement inkblot authentication to your PHP application.
* It can generate list of inkblots from directory or array.
* User may provide amount of letters saved per inkblot, to implement different
* password generation ways
*
* For more information, examples and online documentation visit:
* http://webcodingeasy.com/PHP-classes/Inkblot-authentication
**************************************************************/
session_start();
include("./inkblot_auth.php");
//provide path to directory with inkblot images
$ink = new inkblot_auth("./inkblots");
if(isset($_SESSION["pass"]))
{
//we already created pass for testing
echo "<h3>You have successfully registered. Now try to login using same password</h3>";
//first we need to provide password which we previously saved
//usually it is retrieved form database using provided username
//but for testing we've saved in in session variable
$ink->set_pass($_SESSION["pass"]);
if(isset($_POST["logpass"]))
{
//no we check user provided password
//only after providing saved password
if($ink->check_pass($_POST["logpass"]))
{
echo "<h3>You provided correct password</h3>";
}
else
{
echo "<h3>Your password is incorrect</h3>";
}
}
//now we will get inkblots that were used in pasword
$inks = $ink->get_inkblots();
echo "<div style='overflow: auto; margin-bottom: 50px;'>";
foreach($inks as $val)
{
echo "<img src='".$val."'
style='float: left; margin-right: 10px; width: 200px;'/>";
}
echo "</div>";
echo "<p>All you have to do is remember your password while seeing same
inkblots, that you saw when you created this password.</p>
<p>Just insert your first and last letter of your inkblot interpretations
in inkblot order (from left to right)</p>";
echo "<form action='' method='post'>
<p>Enter your saved password: <input type='text' name='logpass'/>
<input type='submit' value='Register'/></p>
</form>";
}
else
{
//someone submitted pass
if(isset($_POST["regpass"]))
{
//get encoded pass and save it
$_SESSION["pass"] = $ink->get_pass($_POST["regpass"]);
//refresh page
header("Location: ".$_SERVER["REQUEST_URI"]);
}
echo "<h3>Create new password (Simulating registration)</h3>";
//no pass created
$inks = $ink->get_inkblots();
echo "<div style='overflow: auto; margin-bottom: 50px;'>";
foreach($inks as $val)
{
echo "<img src='".$val."'
style='float: left; margin-right: 10px; width: 200px;'/>";
}
echo "</div>";
echo "<p>This login is based on user choosing and remembering the password
based on inkblot that user see.</p>
<p>Because human mind interprets each inkblot differently, it means, that it is
possible that no one else will see a thing that you saw.</p>
<p>You must type first and last letter of each inkblot interpretation based on
sequence you see those inkblots (from left to right)</p>
<p>Then each time you'll try to login, you'll see same inkblot images only each
time in different order</p>
<p>Refresh page to change inkblots</p>";
echo "<form action='' method='post'>
<p>Enter your password: <input type='text' name='regpass'/>
<input type='submit' value='Register'/></p>
</form>";
}
?>
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