From 722ae2eb41a1ff70c7e4731c931367f0540bd139 Mon Sep 17 00:00:00 2001
From: "Namhyeon, Go" <gnh1201@gmail.com>
Date: Wed, 7 Mar 2018 11:24:23 +0900
Subject: [PATCH] Update security.php

---
 system/security.php | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/system/security.php b/system/security.php
index fbef5e6..d577e3c 100644
--- a/system/security.php
+++ b/system/security.php
@@ -422,6 +422,49 @@ if(!function_exists("get_callable_token")) {
 	}
 }
 
+if(!function_exists("encapsulate_text")) {
+	function encapsulate_text($text, $method="aes-128-cbc", $key="", $iv="") {
+		global $config;
+
+		$encapsulated_text = "";
+		$encrypted_text = "";
+
+		$init_text = base64_encode($text);
+		$init_key = empty($key) ? $config['masterkey'] : $key;
+		$init_iv = empty($iv) ? $config['masteriv'] : $iv;
+
+		if(function_exists("openssl_encrypt")) {
+			$encrypted_text = @openssl_encrypt($init_text , $method, $init_key, true, $init_iv);
+			if(!empty($encrypted_text)) {
+				$encapsulated_text = base64_encode($encrypted_text);
+			}
+		}
+		
+		return $encapsulated_text;
+	}
+}
+
+if(!function_exists("decapsulate_text")) {
+	function decapsulate_text($text, $method="aes-128-cbc", $key="", $iv="") {
+		global $config;
+
+		$decapsulate_text = "";
+		$decrypted_text = "";
+
+		$init_text = base64_decode($text);
+		$init_key = empty($key) ? $config['masterkey'] : $key;
+		$init_iv = empty($iv) ? $config['masteriv'] : $iv;
+
+		if(function_exists("openssl_decrypt")) {
+			$encrypted_text = @openssl_decrypt($init_text , $method, $init_key, true, $init_iv);
+			if(!empty($encrypted_text)) {
+				$decapsulate_text = base64_encode($decrypted_text);
+			}
+		}
+		
+		return $decapsulate_text;
+	}
+}
 
 // start session (enable $_SESSION)
 session_start();