HIGHT(ISO/IEC 18033-3) encryption and decryption

WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs

@@ -239,7 +239,7 @@ namespace WelsonJS
             byte[] dataIn = Convert.FromBase64String(encryptedData);
 
             HIGHT.ECB cipher = new HIGHT.ECB(userKey);
-            return Encoding.UTF8.GetString(cipher.Decrypt(dataIn));
+            return Encoding.UTF8.GetString(cipher.Decrypt(dataIn)).Trim('\0');
         }
     }
 }

app.js

@@ -307,20 +307,18 @@ function require(pathname) {
             break;
 
         case ".enc":   // HIGHT(ISO/IEC 18033-3) encrypted
-            T = (function(encryptedData) {
+            T = (function(encryptedData, ToolkitInterface) {
                 try {
-                    var toolkit = CreateObject("WelsonJS.Toolkit");
                     var userKey = '';
                     while (userKey.length == 0 || userKey.length > 16) {
-                        userKey = toolkit.Prompt("Enter the password:");
+                        userKey = ToolkitInterface.Prompt("This file has been encrypted. Please enter the password:");
                     }
-                    return toolkit.DecryptStringHIGHT(encryptedData);
+                    return ToolkitInterface.DecryptStringHIGHT(userKey, encryptedData);
                 } catch (e) {
                     console.error("Failed to load the encrypted data:", e.message);
                     return '';
                 }
-            })(T);
+            })(T, CreateObject("WelsonJS.Toolkit"));
-
             break;
     }
 
@@ -332,6 +330,8 @@ function require(pathname) {
         + FN
     ;
 	
+	if (suffix == ".enc") console.log(T);
+
     // execute
     try {
         cache[FN] = eval(T);

encryptor.js

@@ -0,0 +1,30 @@
+// encryptor.js
+// HIGHT(ISO/IEC 18033-3) encryption and decryption tool for WelsonJS
+// Namhyeon Go <abuse@catswords.net>
+// https://github.com/gnh1201/welsonjs
+
+var FILE = require("lib/file");
+var Toolkit = require("lib/toolkit");
+
+function main(args) {
+    if (args.length < 1) {
+        console.error("Usage: cscript app.js encryptor <filename>");
+        return 0;
+    }
+
+    var filename = args[0];
+    var userKey = '';
+    while (userKey.length == 0 || userKey.length > 16) {
+        userKey = Toolkit.prompt("Please enter the password for encryption:");
+    }
+    var data = FILE.readFile(filename, "utf-8");
+    var encryptedData = Toolkit.encryptStringHIGHT(userKey, data);
+
+    var dstfile = filename + ".enc";
+    FILE.writeFile(dstfile, encryptedData, "utf-8");
+    console.log("Saved to", dstfile);
+
+    console.log("Done");
+}
+
+exports.main = main;

lib/toolkit.js

@@ -92,6 +92,14 @@ function closeProcess(pid) {
     return getInterface().CloseProcess(pid);
 }
 
+function encryptStringHIGHT(userKey, data) {
+    return getInterface().EncryptStringHIGHT(userKey, data);
+}
+
+function decryptStringHIGHT(userKey, encryptedData) {
+    return getInterface().DecryptStringHIGHT(userKey, encryptedData);
+}
+
 exports.create = create;
 exports.getInterface = getInterface;
 exports.sendClick = sendClick;
@@ -103,8 +111,10 @@ exports.prompt = prompt;
 exports.NamedSharedMemory = NamedSharedMemory;
 exports.openProcess = openProcess;
 exports.closeProcess = closeProcess;
+exports.encryptStringHIGHT = encryptStringHIGHT;
+exports.decryptStringHIGHT = decryptStringHIGHT;
 
-exports.VERSIONINFO = "WelsonJS.Toolkit Native API version 0.3.4";
+exports.VERSIONINFO = "WelsonJS native component (WelsonJS.Toolkit) version 0.3.5";
 exports.AUTHOR = "abuse@catswords.net";
 exports.global = global;
 exports.require = global.require;