import android.os.Build; SecretKeyFactory factory; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // Use compatibility key factory -- only uses lower 8-bits of passphrase chars factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1And8bit"); } else { // Traditional key factory. Will use lower 8-bits of passphrase chars on // older Android versions (API level 18 and lower) and all available bits // on KitKat and newer (API level 19 and higher). factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1"); }
