@launchdarkly/react-native-client-sdk/dist/src/platform/crypto/index.js

React Native LaunchDarkly SDK

import PlatformHasher from './PlatformHasher';
/**
 * To avoid dependencies on uuid, this is good enough for now.
 * Ripped from the react-native repo:
 * https://github.com/facebook/react-native/blob/main/packages/react-native/Libraries/Blob/BlobManager.js#L27
 *
 * Based on the rfc4122-compliant solution posted at
 * http://stackoverflow.com/questions/105034
 */
function uuidv4() {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
        const r = (Math.random() * 16) | 0;
        const v = c === 'x' ? r : (r & 0x3) | 0x8;
        return v.toString(16);
    });
}
/**
 * Uses crypto-js as substitute to node:crypto because the latter
 * is not yet supported in some runtimes.
 * https://cryptojs.gitbook.io/docs/
 */
export default class PlatformCrypto {
    createHash(algorithm) {
        return new PlatformHasher(algorithm);
    }
    createHmac(algorithm, key) {
        return new PlatformHasher(algorithm, key);
    }
    randomUUID() {
        return uuidv4();
    }
}
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