fix bug where random tokens were not the expected length

src/Model/Global/fileTransferModel.ts

@@ -24,8 +24,8 @@ export default class FileTransferModel {
     // general
     generateTransferData = (): TransferData => {
         const transferData: TransferData = {
-            channel: generateRandomToken(2).substring(0, 4),
-            key: generateRandomToken(3).substring(0, 6),
+            channel: generateRandomToken(4),
+            key: generateRandomToken(6),
         };
         this.transferData = transferData;
         return transferData;

src/Model/Utility/utility.ts

@@ -8,7 +8,8 @@ export interface Stringifiable {
 export function generateRandomToken(length: number): string {
     const array = new Uint8Array(length);
     crypto.getRandomValues(array);
-    return array.join("");
+    const string = array.join("");
+    return string.substring(0, length);
 }
 
 // date