A privacy-preserving encrypted OSN with stateless server interaction: The Snake design

Providing the means for a private and secure interaction among people is a growing concern in the modern interconnected society. In this work we present Snake, a fully end-to-end encrypted Online Social Network (OSN) aimed at providing privacy even when faced with a leakage (or forced disclosure) of encrypted data happening to the storage provider . In Snake, we shift the vast majority of the OSN working logic onto the client, preserving usability and scalability in group communications, requiring a simple stateless interface with the storage provider, while retaining acceptable timings on desktop and mobile platforms alike. We validate our proposal implementing Snake as a single-page HTML5 application, and performing performance tests with realistic network latencies and bandwidth figures to demonstrate that our proposal achieves sufficient performance levels to provide a usable, end-to-end encrypted OSN.