P2PSP is an open application-layer protocol for the real-time streaming of media content over a peer-to-peer overlay, where every peer is connected with each other following a push-based fully connected mesh scheme. This project was born of the necessity of teaching about computer networks in a more exciting way to students of computer science at University of Almería (a small university in the south of Spain) and … it worked!

In 2015 was the first time we participated as a mentoring organization in the GSoC program. We supervised three excellent students with great ideas. Their work has not only consisted of writing code but also thinking about new algorithms and researching about the problem in depth. We’d like to outline their projects.

NAT traversal via hole punching Set of Rules (Max Mertens)
Connection-filtering-NATs are becoming increasingly frequent, and this is a situation that hinders the connectivity between peers. In this project Max worked in proposing and creating an extra functionality to handle those peers that are behind restricted-cone NATs and symmetric NATs. Max coded and tested his implementation in different scenarios.

Implementation of Content Integrity Set of rules for P2PSP (Ilya Shakirov)
Pollution attacks are a challenging security-related problem in peer-to-peer streaming platforms. We proposed two different theoretical strategies in order to detect a pollution attack in the context of the P2PSP live streaming system. In this project, Ilya coded the strategies, got statistical results and proposed improvements for the strategies.



Integration of GUI, Player and Peer (Prince Kumar)
Till now, P2PSP users had to know how the command line terminal works but, after this project, running a P2PSP peer is much easier. Prince has performed the first GUI for a P2PSP peer including the design, coding and a set of tests. Now play a channel is simply to press a button. Take a look!

Another important part in the development of the program has been the contribution of the mentors. We have counted with six mentors, most of them members of the academia or research environments. They have been excited with their participation and highlighted our students' performance. In their words "the work of some our students have enough quality to be used in some research studies".

We are really happy with our participation in the program and we would like to thank Google for this great initiative.

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