allow tests

src/encrypt.ts

@@ -1,6 +1,12 @@
 import * as base32 from "hi-base32";
 import { bufferToArrayBuffer, arrayBufferToBuffer } from "./misc";
 
+if (window === undefined) {
+  global.window = {
+    crypto: require("crypto").webcrypto,
+  } as any;
+}
+
 const DEFAULT_ITER = 10000;
 
 const getKeyIVFromPassword = async (