KryptoPrefs

KryptoPrefs is an open source Kotlin library for handling encrypted SharedPreferences in Android.

Features

• Lightweight library (~70 KB) with no dependencies.
• High compatibility (API 9 to API 29).
• Modular: Use the provided algorithms or make your own.
• Usable from Java and Kotlin.
• Supports the Android Keystore.
• KryptoContext for higher level features:
  • Supported types: string, int, long, boolean, date, double, float, short, byte, char, enum and json.
  • Types can be nullable.
  • Types can be memory backed.
  • Types can be observed.
  • Custom types with your custom transform (e.g. JSON).
  • Asynchronous reads and writes.

from The Android Arsenal