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1{% extends "common/base.j2" %}
2{% block body_content %}
3 <article class="d-flex flex-column p-2 bd-highlight">
4 <div class="container">
5 <div class="text-center">
6 <header>
7 <h1>{{ _("GNUnet's Google Summer of Code projects") }}</h1>
8 </header>
9 <p>
10 {% trans %}
11 As a GNU project, GNUnet has participated in the
12 Google Summer of Code (GSoC) for a number of years.
13 This page lists all current, past, and finished
14 projects.
15 {% endtrans %}
16 </p>
17 </div>
18 <h2>{{ _("Current projects (2019)") }}</h2>
19 <section>
20 <h4>Android Port</h4>
21 <p>
22 {% trans %}
23 It is time for GNUnet to run properly on Android. Note that
24 GNUnet is written in C, and this is not about rewriting
25 GNUnet in Java, but about getting the C code to run on Android.
26 <br>
27 Mentor: <a href="https://www.goebel-consult.de/">Hartmut Goebel</a>
28 {% endtrans %}
29 </p>
30 </section>
31
32 <section>
33 <h4>Help with Continuous Integration setup</h4>
34 <p>
35 {% trans %}
36 There is a push for migrating our CI to Gitlab. The CI should
37 eventually not just run "make check" on various platforms, but also
38 perform tests with multiple peers running in different VMs with
39 specific network topologies (i.e. NAT) between them being simulated.
40 The CI should also be integrated with Gauger for performance
41 regression analysis. Running jobs only when dependencies have changed
42 and scripting more granular triggers or ideally automatic dependency
43 discovery (as done by the autotools) is also important.
44 <br>
45 Mentor: TBD
46 {% endtrans %}
47 </p>
48 </section>
49
50 <section>
51 <h4>Migrate gnunet-qr from Python 2.7 to C using libzbar</h4>
52 <p>
53 {% trans %}
54 Python 2.7 is reaching its end-of-life, and we want to get rid
55 of the dependency on Python. The existing gnunet-qr tool is a
56 rather simple wrapper around python-zbar, which itself wraps
57 libzbar. The goal of this project is to directly use libzbar
58 to scan QR codes for GNUnet / the GNU Name System (see
59 also <a href="https://bugs.gnunet.org/view.php?id=5562">#5562</a>).
60 <br>
61 Mentor: Christian Grothoff
62 {% endtrans %}
63 </p>
64 </section>
65
66 <section>
67 <h4>re:claimID OpenID Connect performance improvements</h4>
68 <p>
69 {% trans %}
70 reclaimID is a decentralized identity system build on top of the GNU
71 Name System.
72 Upon authorization, the user provides a requesting party (RP) such as a website
73 with an authorization ticket (e.g. piggybacked in an OpenID authorization code).
74 The RP uses information contained in this ticket to
75 <ol>
76 <li> Retrieve the decryption key from GNS</li>
77 <li> Retrieve the user attributes from GNS</li>
78 </ol>
79 The GNS lookups ensure that the RP receives up-to-date attributes and functional
80 decryption keys. However, in particular the RP-specific encryption key
81 resolution can be slow and even fail depending on the network topology.
82 We propose that in an initial exchange, in particular OpenID authorization code
83 flows, we try to incorporate key and maybe even an attribute set in the ticket
84 exchange.
85
86 In order to mitigate this issue, this project is meant to investigate and implement how...
87 <ol>
88 <li> ... decryption keys can be added to an initial exchange in OpenID.</li>
89 <li> ... initial set(s) of attributes can be piggybacked in OpenID.</li>
90 </ol>
91 <br/>
92 Mentor: Martin Schanzenbach
93 {% endtrans %}
94 </p>
95 </section>
96
97 <section>
98 <h4>re:claimID alternative GNS-based encryption</h4>
99 <p>
100 {% trans %}
101 re:claimID is a decentralized identity system build on top of the GNU
102 Name System.
103 The initial design and implementation of re:claimID includes an attribute-based
104 encryption module in order to prevent unauthorized access to attributes in the
105 name system.
106 Our motivation for re:claimID was for it to be name system agnostic, which
107 means the design theoretically also works for other name systems such as
108 namecoin.
109 Other name systems often do not have built-in mechanisms in order to do this.
110 Hence, we implemented an ABE access control layer. Our ABE implementation
111 requires two third party libraries: libpbc and libgabe. While we could merge
112 libgabe into the gnunet service implementation of re:claimID, libpbc is a
113 rather large, third party library which lacks packaging in distributions and
114 for platforms.
115 On the other hand, GNS supports record data encryption using symmetric keys as
116 labels.
117 If we make the access control layer of re:claimID more generic in order to
118 support both ABE and GNS encryption, we could reduce the required depenencies.
119 This would result in gnunet packages to include re:claimID by default.
120
121 In short, the goals are to...
122 <ol>
123 <li> ... improve performance by reducing encryption overhead.</li>
124 <li> ... reduce dependencies.</li>
125 </ol>
126 <br/>
127 Mentor: Martin Schanzenbach
128 {% endtrans %}
129 </p>
130 </section>
131
132 <section>
133 <h4>Enable all networking applications to run over GNUnet out of the box</h4>
134 <p>
135 {% trans %}
136 One great problem of the current Internet is the lack of
137 disintermediation. When people want to talk they need a
138 chat service. When they want to share files they need a
139 file transfer service. Although GNUnet already possesses
140 quite advanced integration into Linux networking, a little
141 extra work is needed for existing applications like irc,
142 www, ftp, rsh, nntpd to run over it in a peer-to-peer way,
143 simply by using a GNS hostname like friend.gnu. Once
144 people have added a person to their GNS they can
145 immediately message, exchange files and suchlike directly,
146 with nothing but the GNUnet in the middle, using
147 applications that have been distributed with unix systems
148 ever since the 1980's. We can produce an OS distribution
149 where these things work out of the box with the nicknames
150 of people instead of cloud services. We have discussed
151 about this topic at the 2018 GNUnet Hacker Meeting, and
152 concluded that this will take
153 {% endtrans %}
154 </p>
155 <ol>
156 <li>
157 {% trans %}
158 deterministic allocation of IP addresses in exit range
159 by PeerId AND CADET port.
160 {% endtrans %}
161 </li>
162 <li>
163 {% trans %}
164 change of exit daemon to exit service, with new APIs to
165 (a) export mapping of allocated IP addresses to PeerID
166 and CADET port (and eventually also dynamic
167 adding/removing of exit maps)
168 {% endtrans %}
169 </li>
170 <li>
171 {% trans %}
172 new service that hijacks DNS reverse lookups in the exit
173 range, mapping them to its own GNS zone where labels are
174 mapped to VPN records with the information from (2), and
175 the label.zone is returned for the reverse lookup.
176 {% endtrans %}
177 </li>
178 </ol>
179 <p>
180 {% trans %}
181 For more information and context,
182 read
183 <a href="https://bugs.gnunet.org/view.php?id=4625">bug id 4625</a>.
184 {% endtrans %}
185 </p>
186 <p>
187 {% trans %}
188 Mentors: lynX, dvn
189 {% endtrans %}
190 </p>
191 </section>
192 <!--
193 Past projects: Previously proposed, but left
194 unfinished. Inspiration for students.
195 -->
196 <!-- <h2>{{ _("Past projects") }}</h2> -->
197 <!--
198 Commentary: Finished projects, descriptions and
199 Links to write-ups about them.
200 -->
201 <!-- <h2>{{ _("Finished projects") }}</h2> -->
202 </div>
203 </article>
204{% endblock body_content %}
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