Expo Docs MCP Server

--- title: Crypto description: A universal library for crypto operations. sourceCodeUrl: https://github.com/expo/expo/tree/sdk-52/packages/expo-crypto packageName: expo-crypto iconUrl: /static/images/packages/expo-crypto.png platforms: ["android", "ios", "tvos", "web"] --- `expo-crypto` enables you to hash data in an equivalent manner to the Node.js core `crypto` API. ## Installation ## Usage ```jsx useEffect(() => { (async () => { const digest = await Crypto.digestStringAsync( Crypto.CryptoDigestAlgorithm.SHA256, 'GitHub stars are neat 🌟' ); console.log('Digest: ', digest); /* Some crypto operation... */ })(); }, []); return ( <View style={styles.container}> <Text>Crypto Module Example</Text> </View> ); } const styles = StyleSheet.create({ container: { flex: 1, backgroundColor: '#fff', alignItems: 'center', justifyContent: 'center', }, }); ``` ## API ```js ``` ## Error codes | Code | Description | | ------------------------ | -------------------------------------------------------------------------------------------- | | `ERR_CRYPTO_UNAVAILABLE` | **Web Only.** Access to the WebCrypto API is restricted to secure origins (localhost/https). | | `ERR_CRYPTO_DIGEST` | An invalid encoding type provided. |