add encrypt test

test/encrypt.js

@@ -0,0 +1,26 @@
+const dpapi = require('wincrypt');
+const entropyBuffer = Buffer.from('cu24180ncjeiu0ci1nwui', 'utf-8');
+
+const run = async () => {
+    const stringToEncrypt = "Test123456!";
+    
+
+    const encrypted = await encryptString(stringToEncrypt)
+    console.log(encrypted);
+    const decrypted = await decryptString(encrypted);
+    console.log(decrypted);
+
+}
+
+async function encryptString(value) {
+    const encryptedString = await dpapi.protect(Buffer.from(value, 'utf-8'), entropyBuffer, 'CurrentUser');
+    const encodedBase64 = Buffer.from(encryptedString, 'utf-8').toString('base64');
+    return encodedBase64;
+}
+
+async function decryptString(value) {
+    const decrypted = await dpapi.unprotect(Buffer.from(value, 'base64'), entropyBuffer, 'CurrentUser');
+    return decrypted.toString();
+}
+
+run();