Theme
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Schedule

Theme
Der Hub wird spätestens Ende Januar archiviert, alle nutzerbezogenen Inhalte, Boards und auch einige Wiki-Seiten werden dabei entfernt. Alle öffentlichen Assemblies, Projekte und Veranstaltungen bleiben. // The hub will be archived by end of January. All user-provided content, boards and several wiki pages will be deleted. All public assemblies, projects and events will remain.
Schedule
all curated only assembly only self_organized only
Day 1 Day 2 Day 3 Day 4
recorded only not recorded only
Tracks
CCC & Community Hardware Security Art & Beauty Ethics, Society & Politics Science Live Performance DJ-Set Entertainment Clear track filter

 

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One
Chaospager - How to construct an Open Pager System for c3 (en)

Max, Julian

In this talk, we will give an introduction into the project (i.e. how it all started at 38c3 and why we are here now), provide an in-depth review of how the development process of our pager worked and what our future goals are. In our introduction, we will talk about the origin and exploration phase of the inital pager idea (i.e. how we went from the idea of bringing POCSAG Pager transmitter to 38c3, over a cable-bound prototype, to a first working pager on a proper PCB). We will also present our plans of connecting our POCSAG transmitter infrastructure to THOT (CERTs own dispatch software). For our in-depth review about the project, we explain how we encountered major reception problems, how we analyzed them at easterhegg22 and conducted experiments there, and why we are opting for a custom HF frontend design instead of an already-made one from chinese vendors. Moreover, we provide an overview of our transmitter devices and give some advice on how to replicate those. Lastly, we will discuss further challenges and what our next goals are. If we are reaching our milestone until 39c3, we will also give a live demo of the system.
Cracking open what makes Apple's Low-Latency WiFi so fast (en)

Henri Jäger

This talk presents Apple's link-layer protocol Low-Latency WiFi and how it achieves its real-time capabilities to enable Continuity features like Sidecar Display and Continuity Camera. We make more kernel logging available on iOS and build a log aggregator that combines and aligns system- and network-level log sources from iOS and macOS.
In-house electronics manufacturing from scratch: How hard can it be? (en)

Augustin Bielefeld, Alexander Willer

Why is electronics manufacturing hard? Can it ever be made easy and more accessible? What will it take to relocate industrial production to Europe? We share with you what we learned when we spent more than 1 year setting up our own production line in our office in Hamburg. Turns out a lot of the difficulties are rarely talked about or hidden behind "manufacturing is high CAPEX". Come and learn with us the nitty gritty details of batch reflow ovens, stencil printing at scale, and how OpenPnP is a key enabler in our process. While we are far from done with this work, we hope to see others replicate it and collectively reclaim the ownership of the means of electronics production.
Xous: A Pure-Rust Rethink of the Embedded Operating System (en)

bunnie, Sean "xobs" Cross

Xous is a message-passing microkernel implemented in pure Rust, targeting secure embedded applications. This talk covers three novel aspects of the OS: hardware MMU support (and why we had to make our own chip to get this feature), how and why we implemented the Rust standard library in Rust (instead of calling the C standard library, like most other Rust platforms), and how we combine the power of Rust semantics with virtual memory to create safe yet efficient asynchronous messaging primitives. We conclude with a short demo of the OS running on a new chip, the "Baochip-1x", which is an affordable, mostly-open RTL SoC built in 22nm TSMC, configured expressly for running Xous.

Ground
A space odyssey #2: How to study moon rocks from the Soviet sample return mission Luna 24 (en)

Paul Koetter

It is 1976 and the USA long stopped going to the Moon when a Soviet automatic landing station called Luna 24 descends to the Lunar surface. It touches down on 3.3 Billion year old rock formations at a place no mission has ever gone before. What exactly happened remains a mystery to this day, but the space probe managed to take a 2.3 m long drill core from the Lunar regolith, packaged the sample in a genius way and launched it for its voyage to Earth. Some days later the sample entered earths atmosphere and landed in remote Siberia and ended up in our hands more than 50 Years later. We tell the story of the sample, the people that brought it to Earth and how we analyzed it with the newest methods including µm sized high intensity X-ray beams, 30kV electron beams and LN2 cooled infrared spectrometers.
Chaos Communication Chemistry: DNA security systems based on molecular randomness (en)

Anne Lüscher

**Over the past few decades, nucleic acids have increasingly been investigated as alternative data storage media and platforms for molecular computing. This talk builds on past research and introduces another branch to the field: DNA cryptography based on random chemistry. This technology provides a platform for conceiving new security architectures that bridge the physical with the digital world.**
CPU Entwicklung in Factorio: Vom D-Flip-Flop bis zum eigenen Betriebssystem (de)

PhD (Philipp)

Factorio ist ein Fabriksimulationsspiel mit integriertem Logiksystem. Dies ermöglichte mir den Bau einer CPU, die unter anderem aus einer 5-stufiger Pipeline, einer Forwarding Logikeinheit, Interrupt Handling sowie einem I/O Interface besteht. Über einen selbst geschriebenen Assembler konnte ich ein eigenes Betriebssystem und Programme wie Minesweeper oder Snake integrieren. Der Talk soll euch zeigen, wie sich klassische Computerarchitektur in einem völlig anderen technischen Kontext umsetzen lässt und wo dabei überraschend echte Probleme der CPU-Entwicklung auftreten. Kommt mit auf die Reise: Vom Blick auf den gesamten Computer bis hinunter zu den einzelnen Logikgattern ist es nur eine Mausradbewegung entfernt!
Recharge your batteries with us - an empowering journey through the energy transition (en)

Salacidre, JulianeB

Amidst gloomy headlines, extreme weather, and climate anxiety, the good stories often get lost. Yet they exist - inspiring people, clever engineering, real breakthroughs. And that's exactly what we bring you – the positive power cycles of the energy transition in action. And real energy on stage.
Textiles 101: Fast Fiber Transform (en)

octoprog

Textiles are everywhere, yet few of us know how they’re made. This talk aims to give you an overview over the complete transformation from fiber to finished textile. We'll be exploring fiber properties, spinning, and techniques like weaving, knitting, crochet, braiding, and knotting, followed by finishing methods such as dyeing, printing, and embroidery. You’ll learn why not only fiber but also structure matters, and how to make or hack textiles on your own without relying on fast fashion or industrial tools.
Reverse engineering the Pixel TitanM2 firmware (en)

willem

The TitanM2 chip has been central to the security of the google pixel series since the Pixel 6. It is based on a modified RISC-V design with a bignum accelerator. Google added some non standard instructions to the RISC-V ISA. This talk investigates the reverse engineering using Ghidra, and simulation of the firmware in python.

Zero
Amateurfunk im All – Kontakt mit Fram2 (de)

akira25, flx, Gato

Wir geben Einblicke in zwei intensive Wochen Planung, Koordination und Aufbau, den Betrieb einer (improvisierten) Bodenstation, sprechen über technische Hürden, Antennendesign und Organisation – und wie wir schließlich mit Astronautin Rabea Rogge im Weltraum gefunkt haben.
Lessons from Building an Open-Architecture Secure Element (en)

Jan Pleskac

The talk will be about our experience from building an open-architecture secure element from the ground up. It explains why openness became part of the security model, how it reshaped design and development workflows, and where reality pushed back — through legal constraints, third-party IP, or export controls. It walks through the secure boot chain, attestation model, firmware update flow, integration APIs, and the testing framework built for external inspection. Real examples of security evaluations by independent researchers are presented, showing what was learned from their findings and how those exchanges raised the overall security bar. The goal is to provoke discussion on how open collaboration can make hardware more verifiable, adaptable, auditable and while keeping secure.
Prometheus: Reverse-Engineering Overwatch (en)

breakingbread

This talk explores the internals of Overwatch which make the game work under the hood. The end goal is to democratise development of Overwatch. Being able to host your own servers and modify the game client to your liking should not be up for discussion for a game many people have paid money for.
Wie wir alte Flipperautomaten am Leben erhalten (de)

Axel Böttcher

Der Vortrag beschreibt, wie eine Gruppe von Begeisterten eine Sammlung von ca. 100 Flipperautomaten (Pinball Machines) am Leben und in spielbereitem Zustand erhält.

Fuse
Über europäische Grenzen hinweg auf klinischen Daten rechnen - aber sicher! (de)

Hendrik Ballhausen

Der Trend geht dahin, aus Gesundheitsdaten große zentralisierte Datenbanken aufzubauen. Eine datensparsame Alternative dazu ist, in einem verschlüsseltem Netzwerk gemeinsam auf verteilten privaten Daten zu rechnen, ohne sie miteinander teilen zu müssen. Perspektivisch können so demokratischere Datenströme geschaffen werden, die Patient:innen als aktiv Teilhabende statt als passive Datenquellen einbinden. Kommt mit auf eine Reise, die vor sechs Jahren in Deutschland gestartet ist und jetzt die erste europäische klinische Studie mit Secure Multiparty Computation (SMPC) realisiert hat.
Auf die Dauer hilft nur Power: Herausforderungen für dezentrale Netzwerke aus Sicht der Soziologie (de)

Marco Wähner

Der Vortrag diskutiert Herausforderungen dezentraler Netzwerke aus soziologischer Perspektive. Als dezentrale Netzwerke werden technische Infrastrukturen verstanden, die nicht von einer zentralen Autorität, sondern verteilt über Instanzen zur Verfügung gestellt werden. Nutzer:innen profitieren von dieser Infrastruktur, nutzen beispielsweise das Fediverse oder das Tor-Netzwerk, ohne zur Infrastruktur beizutragen. Zugleich können dezentrale Netzwerke nur dann bestehen, wenn hinreichende Ressourcen von Personen oder Organisationen mobilisiert werden, um das Netzwerk überhaupt zur Verfügung zu stellen. Dies führt zur originären Instabilität dezentraler Netzwerke, wenn nicht der Weg der Kommodifizierung des Nutzer:innenverhaltens eingeschlagen wird. Aufbauend auf dieser Zustandsbeschreibung, werden Bedingungen erörtert, um Kollektivgüter wie dezentrale Netzwerke organisatorisch (und nicht technisch) herzustellen. Hierzu zählen Partizipation oder die Idee einer öffentlichen Grundfinanzierung. Der Vortrag wird neben soziologischen Ideen und harten Zahlen auch durch eine ordentliche Portion Idealismus zu Fragen der Souveränität und Autonomität in der Digitalisierung motiviert.

Am Spätverkauf
A blast from the Y2K past… GRÜNSPAN (Rock & Metal) (en)

Alex Thurow

A time travel DJ set back to the times of the millennium change… … to the times of the prevented [Y2K apocalypse](https://en.wikipedia.org/wiki/Year_2000_problem) … to the times of the [Dot-com bubble](https://en.wikipedia.org/wiki/Dot-com_bubble) (… it’s about time AI, isn’t it?) … to the times of a [VERY problematic seed being planted](https://en.wikipedia.org/wiki/2000_Russian_presidential_election) … but most importantly to the times of the glorious: [| G.--. || R.--. || Ü.--. || N.--. || S.--. || P.--. || A.--. || N.--. |](https://www.gruenspan.de/) Back when ROCK was alive and kickin’ in „Hamburg meine Perle“! So, if you want to get a LOUD blast from the past - come join us and bring your [Pommesgabel](https://de.wikipedia.org/wiki/Mano_cornuta) with you! Live long and prosper, [DJ Alex](https://mstdn.social/@alexthurow/110279531725018974) (AKA: [https://onmoderndev.de](https://onmoderndev.de))
4ever punk (en)

DJ Baba Grande

one hour of punk music, encompassing many different styles

Chaos Computer Music Club
Sportbrigade Sparwasser (de)

Hüp Now

We are well aware of the fact, that as DJs we play other peoples´(as well as our own) music. This means we want to ensure the musicians get the credit and respect they deserve for their work. Whenever reasonably possible (communication get quite intense for us at times) we´ll be happy to supply track IDs, although sometimes it may take a little while. Also we´re happy about reposts if you like what we´re doing.
Hitstorm aka The Jakob Sister b2b RaverPik (en)

RaverPik

This DJ Team the combines all the Sachsentrance craziness :D since both DJs run the Sachsentrance Label and organize their famous events, widely known for their ecstatic vibes. It's pure Joy!

Chill Floor
chaeza + doc (de)

chaeza + doc

Dj Set
Weebz (en)

Weebz

WEEBZ likes to move between the odds, the rough and the soft: Breakbeat, dissonances, noise and sounds of deep dungeons belong to their mixes as well as the hymns of our hearts Most of the time the genres are mixed to an eclectic collection mirroring own confusions in the spirit of making the unmatching matching xx
Fimi & Nush (de)

Hanni

Fimi&Nush
Felix Kubin (de)

Felix Kubin

Felix Kubin, funkensprühender Spannungs- und Weltenwandler aus Hamburg, Verachter der Nüchternheit, lenkt die musikalische Kompassnagel Richtung Stolperdisko, Art Pop und „gute Nervmusik“. Das Tanzbein zappelt, aber die Beine laufen in verschiedene Richtungen, denn sie haben sich noch nicht synchronisiert. Hier erklingen Songs am Rande des Nervenzusammenbruchs, "Musik für junge Leute" und alle, die nicht sterben wollen. Vor allem haben es ihm die obskuren Musikversuche der Heimstudios vergangener Fostex-Generationen angetan, die Art Brut und ihre Einfärbungen durch billige, leicht zu demolierende Technologien. Felix Kubins musikalische Adoleszenz wurde durch eine Zeit geprägt, in der sich die Szenen der Kunst und Musik stark durchdrangen und Songtitel wie "Die Gesunden kommen", "Adrenalin lässt das Blut kochen" und "Hosen, die nicht aneinander passen" kein Stirnrunzeln verursachten. Eine Zeit also, in der sich die Popmusik weit aus dem Fenster lehnte und die Luft einer fremden, seltsamen Welt atmete.
Lina & Nele & Peng (de)

Lina & Nele & Peng

Nele, Peng and Lina are set to create a mesmerizing experience on the chillfloor 3c39, blending their unique artistic visions into a cohesive musical journey.Lina, with her innate talent and meticulous attention to detail, weaves ethereal melodies, esoteric rhythms, and wavey melancholy into a rich narrative. As an experienced curator of sound and atmosphere, she infuses her sets with her personal journey and history, selecting tracks that evoke deep emotions and resonate with her favorites.Nele and Peng complement Lina's artistry with their exceptional taste and ability to craft transcendental musical experiences. Each of them brings their unique flair, having proven their skills in various venues, including the renowned Kraniche bei den Elbbrücken.Together, this trio invites the audience to immerse themselves in a harmonious blend of sound, encouraging exploration of consciousness and connection with the ineffable beauty of music and place.

Vorglühmarkt
Loui Beton (en)

Loui Beton

Lets get besinnlich at the 39C3
Zweite Sahne & Olga Rhythmus (en)

Tesa

A DJ duo from Frankfurt playing technoid Dark Disco. Soundcloud: https://on.soundcloud.com/ieVMVNI9qlqR6BNBHh