Start migration, and re-organizing files.

src/utils/encryptionHelper/generateRandomEncryptionKey.ts

@@ -0,0 +1,14 @@
+import crypto from "crypto";
+
+function generateRandomEncryptionKey(): Promise<string> {
+  return new Promise((resolve, reject) => {
+    crypto.randomBytes(32, (err, buffer) => {
+      if (err) {
+        reject(err);
+      }
+      resolve(buffer.toString("hex"));
+    });
+  });
+}
+
+export default generateRandomEncryptionKey;