revert: ⏪ revert delete of RandomTypedArrays (margelo#330)

* revert: ⏪ revert delete of RandomTypedArrays

* revert: ⏪ add RandomTypedArrays for tests

example/src/testing/Tests/webcryptoTests/import_export.ts

@@ -7,13 +7,10 @@ import {
 } from 'react-native-quick-base64';
 import crypto from 'react-native-quick-crypto';
 import { describe, it } from '../../MochaRNAdapter';
-import {
-  ab2str,
-  binaryLikeToArrayBuffer,
-  type TypedArray,
-} from '../../../../../src/Utils';
+import { ab2str, binaryLikeToArrayBuffer } from '../../../../../src/Utils';
 import { assertThrowsAsync } from '../util';
 import type { JWK, KeyUsage, NamedCurve } from '../../../../../src/keys';
+import type { RandomTypedArrays } from '../../../../../src/random';
 
 const { subtle } = crypto;
 
@@ -238,7 +235,7 @@ describe('subtle - importKey / exportKey', () => {
       expect(key.keyAlgorithm.length).to.equal(256);
     });
 
-    const test = (rawKeyData: TypedArray, descr: string): void => {
+    const test = (rawKeyData: RandomTypedArrays, descr: string): void => {
       it(`AES import raw / export jwk (${descr})`, async () => {
         const keyData = binaryLikeToArrayBuffer(rawKeyData);
         const keyB64 = arrayBufferToBase64(keyData, true);

src/random.ts

@@ -257,7 +257,18 @@ function asyncRefillRandomIntCache() {
   });
 }
 
-export function getRandomValues(data: TypedArray) {
+// to require('crypto').randomFillSync() with an
+// additional limitation that the input buffer is
+// not allowed to exceed 65536 bytes, and can only
+// be an integer-type TypedArray.
+export type RandomTypedArrays =
+  | Int8Array
+  | Int16Array
+  | Int32Array
+  | Uint8Array
+  | Uint16Array
+  | Uint32Array;
+export function getRandomValues(data: RandomTypedArrays) {
   if (data.byteLength > 65536) {
     throw new Error('The requested length exceeds 65,536 bytes');
   }