Skip to content

Latest commit

 

History

History
61 lines (47 loc) · 3.36 KB

README.md

File metadata and controls

61 lines (47 loc) · 3.36 KB
Raw

WiFriends

Project: CN-Lab PS TU Darmstadt (WiSe-2014/15)

Description:

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

Key features:

  • 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 SQLite DataHandlers and JSON objects
  • 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

Code Modules:

  • Module: MAIN
  • Module: addfriends
  • Module: castle
  • Module: datahandlers
  • Module: profilepage

####Tutor: Leonhard Nobach, M.Sc.

Members:

Screenshots:

WiFriends App's Material UI

  • The Material Design UI and the Add Friends Feature screenshot is shown: Alt text

News Feed Before Profile Exchange

  • The News Feed with the friend's current Status is shown on two friend devices. Alt text

Users' Statuses Updated

  • The users update their status on their respective devices. Alt text

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. Alt text