This folder contains the source code of the Samsung Gear S3 app (Tizen) used for data collection (audio, sensor data, WiFi and BLE beacons) in the paper "Perils of Zero-Interaction Security in the Internet of Things", by Mikhail Fomichev, Max Maass, Lars Almon, Alejandro Molina, Matthias Hollick, in Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, vol. 3, Issue 1, 2019.

The Samsung Gear S3 app consists of two parts: the native service is used for actual data collection and the web app is used to invoke the native service.

In our experimetns we used Samsung Gear S3 (both Classic and Frontier) watches with Tizen Version 3.0.0.2 to collect the following sensor modalities:

SDK Wearable 3.0               # Necessary for the native app (Main SDK)
SDK Wearable 2.3.2             # Necessary for the web app (Main SDK)
Samsung Certificate Extension  # Extension SDK 
Samsung Wearable Extension     # Extension SDK 

Tizen version >= 3.0.0.2 

1. Download and install Tizen Studio (https://www.tizen.org/).
2. Use the Tizen Package Manager (press Alt+Shift+P to open in Tizen Studio) to install the necessary SDKs and Extensions mentioned above.
3. Enable debugging on the Gear S3 watch and connect it to the Tizen Studio as described here (see the section "Running on a Target Device").
4. Create a Samsung Certificate using the Certificate Manager (press Alt+Shift+P to open in Tizen Studio) as described here.
5. Import native and web projects by using File -> Import -> Tizen -> Tizen Project and following the wizzard instructions.

Notes:

• This app can only be tested on a real device and will not work on the emulator.
• To connect the Tizen Studio and the targer Gear S3 device make sure they are in the same WiFi network.
• For each Gear S3 watch a new Samsung Certificate MUST be created in order to install the app!
• For app installation it is required (!) to set up up-to-date time on a smartwatch (can be done automatically via pairing with a smartphone or the time can be manually set on a smartwatch)

1. Make sure the correct Samsung Certificate is selected (one device – one certificate) and the watch is connected to the Tizen Studio.
2. First, run the native service on the watch by right clicking on the ServiceSensor project and selecting Run As -> Tizen Native Application (the service automatically gets built and executed on the watch).
3. Second, run the web app on the watch by right clicking on the HelloAccessoryProvider project and selecting Run As -> Tizen Web Application.
4. The app automatically starts on the watch and it also appears in the list of installed apps (clik on the icon to start the app). The data collection is started/stopped by pressing the START/STOP button in the center of the screen.

Notes:

• Each time the data collection is started it overwrites the data collected before!
• The native service functionality is implemented in native-app/src/servicesensor.c, the web app UI is implemented using web-app/index.html and web-app/js/app.js.

The collected sensor data is stored internally on the watch (keep in mind the space requirements, especially for audio data) under /home/owner/media/Others. The data is extracted using the Device Manager in Tizen Studio (opens via Alt+Shift+V)—the watch must be connected to the Tizen Studio. In the Device Manager select the required watch and navigate to the /home/owner/media/Others folder, then right click on the Others folder and select the "Pull" option.

The collected data is stored in the following structure (use structure-gear-data.py to reformat the data):

+ Others/ 
| + accData.txt
| + audio.wav
| + audio.time
| + barData.txt
| + ble.txt
| + gyrData.txt
| + luxData.txt
| + wifi.txt

Timm Lippert and Mikhail Fomichev

The code is licensed under the GNU GPLv3. See LICENSE.txt for details.