One-Liner: Decentralized Social Networking App using WiFi Direct (An Android App which helps in Socializing with Trusted Friends in Proximity using D2D Communication)
As a part of the research idea, from the Peer-to-Peer Systems Engineering Lab, TU Darmstadt, to estimate the feasibility of latest mobile technology in creating an ad-hoc peer to peer networks, this project involved developing a Decentralized Social Networking application, that uses Wi-Fi P2P API for the overlay creation and it dynamically discovers peers in proximity to exchange profile information in JSON format.
The project considers security as a major aspect of concern in such ad-hoc communication and addresses by data encryption using pre-shared key (AES 256) exchanged securely via Near Field Communication(NFC) during the add friend stage. Material Design UI (Android Lollipop) is also incorporated into the application.
Technologies Tag: Android, Java, SQLite, WifiP2P API, Cryptography, AES 256 Encryption, Spongy Castle API, Git, Material Design UI, Android Lollipop, Android Studio
- Decentralized and without Internet - using Wi-Fi P2p API of Android
- Exchanges only with Trusted Friends - using NFC and local PINs to securely Add Friends to Trust Zone
- Collected profiles are stored Locally on user's devices - using
SQLiteDataHandlers andJSONobjects - User can later browse friends Profile - using Profile View UIs
- Automatic Content Exchange whenever friends are in Proximity via any D2D Communication Technique(WifiP2P) Network Service Discovery
- The app should be Secure - Only friends can exchange Contents - using Encrypted exchange of Profile data AES-256
- UI - As Less Interactions as possible - Implementing as foreground Service
- UI – Appealing to view profiles
- Module:
MAIN - Module:
addfriends - Module:
castle - Module:
datahandlers - Module:
profilepage
####Tutor: Leonhard Nobach, M.Sc.
- Hariharan Gandhi ([email protected])
- Harini Gunabalan ([email protected])
WiFriends App's Material UI
- The Material Design UI and the Add Friends Feature screenshot is shown:
News Feed Before Profile Exchange
- The News Feed with the friend's current Status is shown on two friend devices.
Users' Statuses Updated
- The users update their status on their respective devices.
News Feed After Profile Exchange
- Now the devices come into proximity, connect to each other through WiFi Direct to exchange profiles and the updated statuses are reflected on the friend's devices.
