SecureStore for sensitive data in React Native - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is SecureStore in React Native?

SecureStore is a library that safely stores sensitive data like passwords or tokens on a device using encrypted storage.

beginner

How do you save data using SecureStore?

Use SecureStore.setItemAsync(key, value) to save data securely on the device.

beginner

How do you retrieve data from SecureStore?

Use SecureStore.getItemAsync(key) to get the stored data back securely.

intermediate

Why should you use SecureStore instead of AsyncStorage for sensitive data?

SecureStore encrypts data and protects it with device security, while AsyncStorage stores data unencrypted and is less safe for secrets.

beginner

What happens if you try to get a key that does not exist in SecureStore?

SecureStore returns null if the key is not found, so always check for null before using the data.

Which method saves data securely using SecureStore?

A SecureStore.getItemAsync(key)

B SecureStore.deleteItem(key)

C SecureStore.setItemAsync(key, value)

D SecureStore.loadData(key)

Use setItemAsync to save data securely.

What does SecureStore return if a key is missing?

A undefined

B throws error

C empty string

D null

SecureStore returns null when the key is not found.

Why is SecureStore better than AsyncStorage for passwords?

A It encrypts data

B It is faster

C It uses less memory

D It supports more data types

SecureStore encrypts data, making it safer for sensitive info.

Which SecureStore method retrieves stored data?

A getItemAsync

B setItemAsync

C removeItemAsync

D fetchItem

getItemAsync is used to retrieve data.

What type of data is SecureStore designed to hold?

A Large images

B Sensitive small data like tokens

C App configuration files

D User interface layouts

SecureStore is for small sensitive data like tokens or passwords.

Explain how to securely save and retrieve a user token using SecureStore in React Native.

Think about the methods to save and get data securely.

Why is it important to use SecureStore for sensitive data instead of AsyncStorage?

Consider what happens if someone accesses unencrypted data.