- Add support for the currently unsupported commands: - `NK_fill_SD_card_with_random_data` - `NK_get_SD_usage_data` - `NK_get_progress_bar_value` - Clear passwords from memory. - Lock password safe in `PasswordSafe::drop()` (see [nitrokey-storage-firmware issue 65][]). - Disable creation of multiple password safes at the same time. - Check timing in Storage tests. - Consider restructuring `device::StorageStatus`. [nitrokey-storage-firmware issue 65]: https://github.com/Nitrokey/nitrokey-storage-firmware/issues/65