diff --git a/WelsonJS.Toolkit/WelsonJS.Launcher/Properties/AssemblyInfo.cs b/WelsonJS.Toolkit/WelsonJS.Launcher/Properties/AssemblyInfo.cs
index cc95635..39760c6 100644
--- a/WelsonJS.Toolkit/WelsonJS.Launcher/Properties/AssemblyInfo.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Launcher/Properties/AssemblyInfo.cs
@@ -10,7 +10,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Catswords")]
 [assembly: AssemblyProduct("WelsonJS")]
-[assembly: AssemblyCopyright("Catswords OSS, C-2021-000237, Opensource licensed under GPLv3 or MS-RL")]
+[assembly: AssemblyCopyright("Catswords OSS, Opensource licensed under GPLv3")]
 [assembly: AssemblyTrademark("WelsonJS")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
 // 기본값으로 할 수 있습니다.
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.2.7.31")]
-[assembly: AssemblyFileVersion("0.2.7.31")]
+[assembly: AssemblyVersion("0.2.7.49")]
+[assembly: AssemblyFileVersion("0.2.7.49")]
diff --git a/WelsonJS.Toolkit/WelsonJS.Service/Properties/AssemblyInfo.cs b/WelsonJS.Toolkit/WelsonJS.Service/Properties/AssemblyInfo.cs
index dbda055..5319c17 100644
--- a/WelsonJS.Toolkit/WelsonJS.Service/Properties/AssemblyInfo.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Service/Properties/AssemblyInfo.cs
@@ -10,7 +10,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Catswords")]
 [assembly: AssemblyProduct("WelsonJS")]
-[assembly: AssemblyCopyright("Catswords OSS, C-2021-000237, Opensource licensed under GPLv3 or MS-RL")]
+[assembly: AssemblyCopyright("Catswords OSS, Opensource licensed under GPLv3")]
 [assembly: AssemblyTrademark("WelsonJS")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
 // 기본값으로 할 수 있습니다.
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.2.7.26")]
-[assembly: AssemblyFileVersion("0.2.7.26")]
+[assembly: AssemblyVersion("0.2.7.49")]
+[assembly: AssemblyFileVersion("0.2.7.49")]
diff --git a/WelsonJS.Toolkit/WelsonJS.Toolkit/Cryptography/HIGHT.cs b/WelsonJS.Toolkit/WelsonJS.Toolkit/Cryptography/HIGHT.cs
index ece1d05..8c1e249 100644
--- a/WelsonJS.Toolkit/WelsonJS.Toolkit/Cryptography/HIGHT.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Toolkit/Cryptography/HIGHT.cs
@@ -5,7 +5,7 @@
  *         HIGHT.cs
  * 
  *     description:
- *         HIGHT(ISO/IEC 18033-3) cryptography algorithm (ECB mode) implementation for WelsonJS
+ *         HIGHT(ISO/IEC 18033-3) cryptography algorithm implementation
  * 
  *     website:
  *         - https://github.com/gnh1201/welsonjs
@@ -16,6 +16,7 @@
  *         - Namhyeon Go <abuse@catswords.net>
  *         - @chandong83 (github.com) - Original author of CryptoHIGHT.cs
  *         - KISA(Korea Internet & Security Agency)
+ *         - Korea Unversity
  *     
  *     references:
  *         - https://github.com/chandong83/csharp_crypto_hight_ecb_examples
diff --git a/WelsonJS.Toolkit/WelsonJS.Toolkit/Properties/AssemblyInfo.cs b/WelsonJS.Toolkit/WelsonJS.Toolkit/Properties/AssemblyInfo.cs
index b76835a..80e27ca 100644
--- a/WelsonJS.Toolkit/WelsonJS.Toolkit/Properties/AssemblyInfo.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Toolkit/Properties/AssemblyInfo.cs
@@ -10,7 +10,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Catswords")]
 [assembly: AssemblyProduct("WelsonJS")]
-[assembly: AssemblyCopyright("Catswords OSS, C-2021-000237, Opensource licensed under GPLv3 or MS-RL")]
+[assembly: AssemblyCopyright("Catswords OSS, Opensource licensed under GPLv3")]
 [assembly: AssemblyTrademark("WelsonJS")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
 // 기본값으로 할 수 있습니다.
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.2.7.22")]
-[assembly: AssemblyFileVersion("0.2.7.22")]
+[assembly: AssemblyVersion("0.2.7.49")]
+[assembly: AssemblyFileVersion("0.2.7.49")]
diff --git a/WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs b/WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs
index 7cea066..4ca03ec 100644
--- a/WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs
+++ b/WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs
@@ -225,7 +225,7 @@ namespace WelsonJS
         }
 
         [ComVisible(true)]
-        public string EncryptStringHIGHT(string key, string data)
+        public string EncryptString(string key, string data)
         {
             byte[] userKey = Encoding.ASCII.GetBytes(key);
             byte[] dataIn = Encoding.UTF8.GetBytes(data);
@@ -235,7 +235,7 @@ namespace WelsonJS
         }
 
         [ComVisible(true)]
-        public string DecryptStringHIGHT(string key, string encryptedData)
+        public string DecryptString(string key, string encryptedData)
         {
             byte[] userKey = Encoding.ASCII.GetBytes(key);
             byte[] dataIn = Convert.FromBase64String(encryptedData);
diff --git a/app.js b/app.js
index 2e2165b..0ed16d7 100644
--- a/app.js
+++ b/app.js
@@ -315,7 +315,7 @@ function require(pathname) {
             });
             break;
 
-        case ".enc":   // protected script (HIGHT, ISO/IEC 18033-3)
+        case ".enc":   // encrypted script (require WelsonJS.Toolkit)
             T = (function(data, o) {
                 try {
                     var s = '', i = 0, k = 6;
@@ -327,7 +327,7 @@ function require(pathname) {
                         i++;
                     }
                     if (i == k) return '';
-                    return o.DecryptStringHIGHT(s, data);
+                    return o.DecryptString(s, data);
                 } catch (e) {
                     console.error("Failed to load the encrypted data:", e.message);
                     return '';
diff --git a/encryptor.js b/encryptor.js
index e68dc05..63305f8 100644
--- a/encryptor.js
+++ b/encryptor.js
@@ -25,7 +25,7 @@ function main(args) {
     }
 
     var data = FILE.readFile(filename, FILE.CdoCharset.CdoUTF_8);
-    var encryptedData = Toolkit.encryptStringHIGHT(userKey, data);
+    var encryptedData = Toolkit.encryptString(userKey, data);
 
     var dstfile = filename + ".enc";
     FILE.writeFile(dstfile, encryptedData, FILE.CdoCharset.CdoUTF_8);
diff --git a/lib/toolkit.js b/lib/toolkit.js
index 8cdcd14..b8473b4 100644
--- a/lib/toolkit.js
+++ b/lib/toolkit.js
@@ -1,5 +1,5 @@
 // toolkit.js
-// WelsonJS native component interface for WelsonJS framework
+// WelsonJS native toolkit interface version 0.3.7
 // Namhyeon Go <abuse@catswords.net>
 // https://github.com/gnh1201/welsonjs
 
@@ -93,12 +93,12 @@ function closeProcess(pid) {
     return getInterface().CloseProcess(pid);
 }
 
-function encryptStringHIGHT(userKey, data) {
-    return getInterface().EncryptStringHIGHT(userKey, data);
+function encryptString(userKey, data) {
+    return getInterface().EncryptString(userKey, data);
 }
 
-function decryptStringHIGHT(userKey, encryptedData) {
-    return getInterface().DecryptStringHIGHT(userKey, encryptedData);
+function decryptString(userKey, encryptedData) {
+    return getInterface().DecryptString(userKey, encryptedData);
 }
 
 exports.create = create;
@@ -112,10 +112,14 @@ exports.prompt = prompt;
 exports.NamedSharedMemory = NamedSharedMemory;
 exports.openProcess = openProcess;
 exports.closeProcess = closeProcess;
-exports.encryptStringHIGHT = encryptStringHIGHT;
-exports.decryptStringHIGHT = decryptStringHIGHT;
+exports.encryptString = encryptString;
+exports.decryptString = decryptString;
 
-exports.VERSIONINFO = "WelsonJS native component interface (WelsonJS.Toolkit) version 0.3.6";
+// compatiblity (below version 0.7.48)
+exports.encryptStringHIGHT = encryptString;
+exports.decryptStringHIGHT = decryptString;
+
+exports.VERSIONINFO = "WelsonJS native toolkit interface version 0.3.7";
 exports.AUTHOR = "abuse@catswords.net";
 exports.global = global;
 exports.require = global.require;