Navigating the shift from Android’s legacy secure storage to the modern DataStore + Tink era.

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EncryptedSharedPreferences is deprecated as of androidx.security:security-crypto:1.1.0-alpha07 due to performance issues and reliability problems. The modern approach combines Jetpack DataStore with Google Tink for encrypted storage. DataStore provides async I/O via Coroutines, Proto DataStore adds type safety, and Tink handles stream-level encryption. The migration involves defining a Protobuf schema, creating a CryptoManager with Tink's StreamingAead, implementing an encrypted Serializer, and using DataStore's SharedPreferencesMigration API to seamlessly transfer existing data. This architecture encrypts entire files rather than individual values, offering better performance and security.

Goodbye EncryptedSharedPreferences: A 2026 Migration Guide