--- outerbridge-humancaptcha.orig.php	2014-08-27 14:08:59.804507500 +0200
+++ outerbridge-humancaptcha.php	2014-08-27 14:08:29.753606000 +0200
@@ -112,7 +112,7 @@
 			$mysql = "CREATE TABLE $obr_hc_table_name (
 				fld_ref int(11) NOT NULL AUTO_INCREMENT,
 				fld_questions varchar(100) NOT NULL,
-				fld_answers varchar(20) NOT NULL,
+				fld_answers varchar(100) NOT NULL,
 				UNIQUE KEY fld_ref (fld_ref)
 			) $charset_collate;";
 			require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
@@ -207,7 +207,7 @@
 			$selected = $this->obr_select_question();
 			$question = $selected['question'];
 			$answer = $selected['answer'];
-			$_SESSION['obr_answer'] = md5(strtolower(trim($answer)));
+			$_SESSION['obr_answer'] = strtolower(trim($answer));
 			// use the comment-form-email class as it works better with 2011
 			$fields['obr_hlc'] = '<p class="comment-form-email"><label for="obr_hlc">'.stripslashes($question).'</label> <span class="required">*</span><input id="answer" name="answer" size="30" type="text" aria-required=\'true\' /></p>';
 			return $fields;
@@ -237,7 +237,7 @@
 		$selected = $this->obr_select_question();
 		$question = $selected['question'];
 		$answer = $selected['answer'];
-		$_SESSION['obr_answer'] = md5(strtolower(trim($answer)));
+		$_SESSION['obr_answer'] = strtolower(trim($answer));
 		$fields['obr_hlc'] = '<p><label for="obr_hlc">'.stripslashes($question).'<br /><input type="text" name="answer" id="answer" class="input" value="" size="25" tabindex="20" /></label></p>';
 		echo $fields['obr_hlc'];
 		return $fields;
@@ -272,9 +272,17 @@
 		if ((!isset($_POST['answer'])) || ($_POST['answer'] == '')){
 			$errors->add('obr_error', __('Error: please fill the required field (humancaptcha).', 'humancaptcha'));
 		} else {
-			$user_answer = md5(strtolower(trim($_POST['answer'])));
+			$user_answer = strtolower(trim($_POST['answer']));
 			$obr_answer = strtolower(trim($_SESSION['obr_answer']));
-			if ($user_answer != $obr_answer){
+			$valid = false;
+			$tok = strtok($obr_answer, ",");
+			while ($tok !== false){
+				if ($user_answer === $tok){
+					$valid = true;
+				}
+				$tok = strtok(",");
+			}
+			if ($valid !== true){
 				$errors->add('obr_error', __('Error: your answer to the humancaptcha question is incorrect.', 'humancaptcha'));
 			}
 		}
@@ -295,12 +303,16 @@
 		if ((!isset($_POST['answer'])) || ($_POST['answer'] == '')){
 			wp_die(__('Error: please fill the required field (humancaptcha).', 'humancaptcha'));
 		}
-		$user_answer = md5(strtolower(trim($_POST['answer'])));
+		$user_answer = strtolower(trim($_POST['answer']));
 		$obr_answer = strtolower(trim($_SESSION['obr_answer']));
-		if ($user_answer != $obr_answer){
-			wp_die(__('Error: your answer to the humancaptcha question is incorrect.  Use your browser\'s back button to try again.', 'humancaptcha'));
+		$tok = strtok($obr_answer, ",");
+		while ($tok !== false){
+			if ($user_answer === $tok){
+				return true;
+			}
+			$tok = strtok(",");
 		}
-		return true;
+		wp_die(__('Error: your answer to the humancaptcha question is incorrect.  Use your browser\'s back button to try again.', 'humancaptcha'));
 	}	
 
 	function obr_admin_menu(){
@@ -324,7 +336,7 @@
 			$counter = 1;
 			foreach($wpdb->get_results($mysql) as $key => $row){
 				echo '<form method="post" action="',$page,'">';
-				echo '<tr><td style="width: 75px;">',$counter,'</td><td><input type="text" name="question" value="',stripslashes($row->fld_questions),'" style="width: 490px; text-align: left;" /></td><td><input type="text" name="answer" value="',stripslashes($row->fld_answers),'" style="width: 140px; text-align: left;" /></td>';
+				echo '<tr><td style="width: 75px;">',$counter,'</td><td><input type="text" name="question" value="',stripslashes($row->fld_questions),'" style="width: 490px; text-align: left;" /></td><td><input type="text" name="answer" value="',stripslashes($row->fld_answers),'" style="width: 490px; text-align: left;" /></td>';
 				echo '<td><input type="hidden" name="ref" value=',$row->fld_ref,' /><input type="submit" name="updateqanda" value="'.__('Update Q & A', 'humancaptcha').'" style="width: 125px;" /></td>';
 				echo '</form>';
 				echo '<form method="post" action="',$page,'">';
@@ -342,7 +354,7 @@
 		if (isset($answer)){
 			echo $answer;
 		}
-		echo '" style="width: 140px; text-align: left;" /></td>';
+		echo '" style="width: 490px; text-align: left;" /></td>';
 		echo '<td><input type="submit" name="addqanda" value="'.__('Add New Q & A', 'humancaptcha').'" style="width: 125px;" /></td></tr>';
 		if (isset($message)){
 			echo '<tr><td colspan="5"><strong>',$message,'</strong></td></tr>';