@polkadot/x-randomvalues/react-native.js

A cross-environment window.crypto.getRandomValues replacement

import { NativeModules } from 'react-native';
import { base64Decode } from '@polkadot/wasm-util/base64';
import { xglobal } from '@polkadot/x-global';
import { crypto as cryptoBrowser, getRandomValues as getRandomValuesBrowser } from './browser.js';
import { insecureRandomValues } from './fallback.js';
export { packageInfo } from './packageInfo.js';
/**
 * @internal
 *
 * A getRandomValues util that detects and uses the available RN
 * random utiliy generation functions.
 **/
function getRandomValuesRn(output) {
    return base64Decode(NativeModules.RNGetRandomValues
        ? NativeModules.RNGetRandomValues.getRandomBase64(output.length)
        : NativeModules.ExpoRandom.getRandomBase64String(output.length), output);
}
export const getRandomValues = ((typeof xglobal.crypto === 'object' && typeof xglobal.crypto.getRandomValues === 'function')
    ? getRandomValuesBrowser
    : (typeof xglobal['nativeCallSyncHook'] === 'undefined' || !NativeModules['ExpoRandom'])
        ? insecureRandomValues
        : getRandomValuesRn);
export const crypto = (getRandomValues === getRandomValuesBrowser
    ? cryptoBrowser
    : { getRandomValues });