How can I encrypt data stored in AsyncStorage?

How can I encrypt data stored in AsyncStorage?

You can use libraries like 'crypto-js' to encrypt your data before storing it in AsyncStorage.

Can you show me a code example?

Sure! Here's a simple example:

import AsyncStorage from '@react-native-async-storage/async-storage';
import CryptoJS from 'crypto-js';

const encryptData = (data) => {
    return CryptoJS.AES.encrypt(data, 'your-secret-key').toString();
};

const storeData = async (key, value) => {
    try {
        const encryptedValue = encryptData(value);
        await AsyncStorage.setItem(key, encryptedValue);
    } catch (e) {
        console.error('Error storing data', e);
    }
};

What about decrypting the data?

You can decrypt the data using a similar approach:

const decryptData = (encryptedData) => {
    const bytes = CryptoJS.AES.decrypt(encryptedData, 'your-secret-key');
    return bytes.toString(CryptoJS.enc.Utf8);
};

const getData = async (key) => {
    try {
        const encryptedValue = await AsyncStorage.getItem(key);
        return decryptData(encryptedValue);
    } catch (e) {
        console.error('Error retrieving data', e);
    }
};