Audit of Session Secure Messaging Application

Oxen [1] mandated Quarkslab to perform an audit of their instant messaging solution Session [2]. This application, forked from Signal, aims to improve users privacy by using an onion routing mechanism [3]. This mechanism differs from Tor's one by requiring a deposit in their own cryptocurrency to operate a Service Node (Snode [4] ), the Oxen equivalent of a Tor Entry, Relay or Exit Node. While reviewing the architecture of this solution, we found some issues and provided recommendations to improve parts of the implementations.

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