echo "hash of ", ivcs_transform_from(explode(" ", $result[0])), " = ", __cn_hash(sha1(ivcs_transform_from(explode(" ", $result[0])))), "<BR>";
echo "<BR>symmetry test<BR>";
echo "1st OTP from generator = ", $result[0], "<BR>";
$hex = ivcs_transform_from(explode(" ", $result[0]));
echo "Hex result from ivcs_transform_from = ", $hex, "<BR>";
$six = ivcs_transform_to($hex);
echo "Re-encoding result from ivcs_transform_to ", implode(" ", $six), "<BR>";
echo "<BR>";
echo "<BR>";
echo "Test of OTP table : <BR>";
$index = 1;
$lastHash = __cn_hash(sha1(ivcs_transform_from(explode(" ", $result[0]))));
$numfailed = 0;
$numpassed = 0;
foreach ($result as $sixword) {
$currentHash = ivcs_transform_from(explode(" ", $sixword));
$verifyHash = __cn_hash(sha1($currentHash));
if (strcmp($verifyHash, $lastHash) == 0) {
//echo "SUCCESS at ",$index, " : hash(", $sixword, ") = ",$verifyHash, ", expected ", $lastHash,"<BR>";
$numpassed++;
} else {
echo "FAILURE at ", $index, " : hash(", $sixword, ") = ", $verifyHash, ", expected ", $lastHash, "<BR>";
$numfailed++;
}
$lastHash = $currentHash;
$index++;
}
echo $numfailed, " failed, ", $numpassed, " passed.";
echo "<BR><BR>";
echo "Test of valid_otp() : <BR>";
$index = 1;
function ivcs_transform_array_to($otpList)
{
if (!is_array($otpList)) {
throw new Exception("passed list is not array!");
return false;
}
$len = count($otpList);
if ($len < 1) {
throw new Exception("passed list is not array!");
return false;
}
$sixWord = array();
for ($i = 0; $i < $len; $i++) {
if (null == $otpList[$i]) {
$sixWord[$i] = null;
} elseif (!is_string($otpList[$i])) {
$sixWord[$i] = null;
} elseif (strlen($otpList[$i]) < 1) {
$sixWord[$i] = null;
} else {
$sixWord[$i] = implode(" ", ivcs_transform_to($otpList[$i]));
//////////////////// invertibilty integrity check ////////////////////////////////////
$testinverse = ivcs_transform_from(explode(" ", $sixWord[$i]));
if (strcmp($otpList[$i], $testinverse) != 0) {
error_log("ivcs_transform_array_to : ivcs_transform not invertible");
error_log("ivcs_transform_array_to : original = " . $otpList[$i] . ", strlen = " . strlen($otpList[$i]));
error_log("ivcs_transform_array_to : transform= " . $sixWord[$i]);
error_log("ivcs_transform_array_to : inverted = " . $testinverse . ", strlen = " . strlen($testinverse));
}
////////////////////////////////////////////////////////////////////////////////////
}
}
return $sixWord;
}
$failureCount++;
}
$ptr++;
}
echo $failureCount, " failures, ", $successCount, " successes, out of ", $ptr, " total <BR>";
$iterations = 40;
//--TIMING ivcs_transform_from------------------------------------------------------
echo "<BR>";
echo "Timing ivcs_transform_from()<BR>";
////////////////////////////////////////////////////
$time1 = time();
$counter = 0;
for ($i = 0; $i < $iterations; $i++) {
foreach ($converted as $codewords) {
///////////////////////////////////////////////////
$result = ivcs_transform_from($codewords);
///////////////////////////////////////////////////
$counter++;
}
}
$time2 = time();
echo "elapsed time = ", $time2 - $time1, " seconds.<BR>";
echo "For {$counter} six-word code groups converted.<BR>";
//////////////////////////////////////////////////
//--TIMING ivcs_transform_to------------------------------------------------------
echo "<BR>";
echo "Timing ivcs_transform_to()<BR>";
////////////////////////////////////////////////////
$time1 = time();
$counter = 0;
for ($i = 0; $i < $iterations; $i++) {
require_once '../otp.php';
$uid = get_user_id();
$otp = $_POST['form_challenge_response'];
$login = $_POST['login'];
/* LICENSED UNDER THE GPL */
###############################################################################################
#
# if they have clicked the login button
#
###############################################################################################
if ($login) {
// six word format test/convert
if (!is_array($otp)) {
$otp = explode(' ', $otp);
}
$cur = ivcs_transform_from($otp);
$last = __otp_hash(sha1($cur));
$sequence = get_otp_seq($uid);
$match = demo_compare_last_otp($sequence, $last, $uid);
if (!$match) {
print "<h1>Invalid OTP</h1>";
} else {
// update session/auth state
demo_set_last_otp($sequence + 1, $cur, $uid);
//redirect to requested page
header("Location: index.php");
exit;
}
} else {
}
###############################################################################################