Conference 39th Chaos Communications Congress

One

pajowu, Stella

Power On! Lasst uns gemeinsam an diesem magischen Ort ankommen und alles vorbereiten, um die nächsten vier Tage in einer fröhlich-kreativen, fantastischen Wunderwelt zu verbringen und Kraft zu tanken.

Zentrum für Politische Schönheit: Ein Jahr Adenauer SRP+ und der Walter Lübcke Memorial Park (en)

Stefan Pelzer, Philipp Ruch

Es ist genau ein Jahr her, dass der Adenauer SRP+ in der Halle des 38C3 stand. Damals war er noch eine Baustelle, aber schon bald machte er sich auf den Weg, um Geschichte zu schreiben. Wir nehmen euch mit auf eine Reise: von Blockade über Protest, von Sommerinterviews bis zu Polizeischikanen lassen wir ein Jahr Adenauer SRP+ Revue passieren. Das könnte lustig werden. Außerdem: alles zum Walter Lübcke-Memorial-Park, den wir gerade direkt vor die CDU-Zentrale gebaut haben. Owei owei: Das wird viel für 40 Minuten.

Building hardware - easier than ever - harder than it should be (en)

Kliment

Building electronics has never been easier, cheaper, or more accessible than the last few years. It's also becoming a precious skill in a world where commercially made electronics are the latest victim of enshittification and vibe coding. And yet, while removing technical and financial barriers to building things, we've not come as far as we should have in removing social barriers. The electronics and engineering industry and the cultures around them are hostile to newcomers and self-taught practitioners, for no good reason at all. I've been teaching advanced electronics manufacturing skills to absolute beginners for a decade now, and they've consistently succeeded at acquiring them. I'm here to tell you why it's not as hard as it seems, how to get into it, and why more people who think they can't should try.

Liberating Bluetooth on the ESP32 (en)

Antonio Vázquez Blanco (Antón)

Despite how widely used the ESP32 is, its Bluetooth stack remains closed source. Let’s dive into the low-level workings of a proprietary Bluetooth peripheral. Whether you are interested in reverse engineering, Bluetooth security, or just enjoy poking at undocumented hardware, this talk may inspire you to dig deeper.

Die Känguru-Rebellion: Digital Independence Day (de)

Marc-Uwe Kling, Linus Neumann

Marc-Uwe Kling liest neues vom Känguru vor.

Hacking washing machines (en)

Severin von Wnuck-Lipinski, Hajo Noerenberg

Almost everyone has a household appliance at home, whether it's a washing machine, dishwasher, or dryer. Despite their ubiquity, little is publicly documented about how these devices actually work or how their internal components communicate. This talk takes a closer look at proprietary bus systems, hidden diagnostic interfaces, and approaches to cloud-less integration of appliances from two well-known manufacturers into modern home automation systems.

Ground

The art of text (rendering) (en)

Nicolas Rougier

Typography is the art of arranging type to make written language legible, readable, and appealing when displayed. However, for the neophyte, typography is mostly apprehended as the juxtaposition of characters displayed on the screen while for the expert, typography means typeface, scripts, unicode, glyphs, ascender, descender, tracking, hinting, kerning, shaping, weigth, slant, etc. Typography is actually much more than the mere rendering of glyphs and involves many different concepts. If glyph rendering is an important part of the rendering pipeline, it is nonetheless important to have a basic understanding of typography or there’s a known risk at rendering garbage on screen, as it has been seen many times in games, software and operating systems.

Chaos macht Küche (de)

Ingwer Andersen

Ihr macht eine Veranstaltung für viele Menschen? Dann haben viele Menschen auch viel Hunger. Jetzt wird euch gezeigt wie man für viele (mehr als 75) Menschen Essen zubereitet. Es braucht nur etwas Vorbereitung und Motivation!

Excuse me, what precise time is It? (en)

Oliver Ettlin

With PTP 1588, AES67, and SMPTE 2110, we can transmit synchronous audio and video with sub-millisecond latency over the asynchronous medium Ethernet. But how do you make hundreds of devices agree on the exact same nanosecond on a medium that was never meant to care about time? Precision Time Protocol (IEEE 1588) tries to do just that. It's the invisible backbone of realtime media standards like AES67 and SMPTE 2110, proprietary technologies such as Dante, and even critical systems powering high-frequency trading, cellular networks, and electric grids.

Breaking architecture barriers: Running x86 games and apps on ARM (en)

Tony Wasserka

Presenting FEX, a translation layer to run x86 apps and games on ARM devices: Learn why x86 is such a pain to emulate, what tricks and techniques make your games fly with minimal translation overhead, and how we are seamless enough that you'll forget what CPU you're using in the first place!

Zero

ISDN + POTS Telephony at Congress and Camp (en)

Harald "LaF0rge" Welte

Like 39C3, the last CCC camp (2023) and congress (38C3) have seen volunteer-driven deployments of legacy ISDN and POTS networks using a mixture of actual legacy telephon tech and custom open source software. This talk explains how this is achieved, and why this work plays an important role in preserving parts of our digital communications heritage.

FeTAp 611 unplugged: Taking a rotary dial phone to the mobile age (en)

Michael Weiner

This project transforms a classic rotary phone into a mobile device. Previous talks have analyzed various aspects of analogue phone technology, such as rotary pulse detection or ringing voltage generation. Now this project helps you get rid of the cable: it equips the classic German FeTAp 611 with battery power and a flyback SMPS based ringing voltage generator - but still maintains the classical look and feel. The talk demonstrates the journey of bridging analog and digital worlds, explaining how careful design connects a vintage phone to today’s mobile environment - in a way that will make your grandparents happy.

Pwn2Roll: Who Needs a 595€ Remote When You Have wheelchair.py? (en)

elfy

A 595€ wheelchair remote that sends a handful of Bluetooth commands. A 99.99€ app feature that does exactly what the 595€ hardware does. A speed upgrade from 6 to 8.5 km/h locked behind a 99.99€ paywall - because apparently catching the bus is a premium feature. Welcome to the wonderful world of DRM in assistive devices, where already expensive basic mobility costs extra and comes with in-app purchases! And because hackers gonna hack, this just could not be left alone.

1965 + 60 Years of Algorithmic Art with Computers (en)

Enna Gerhard, Frieder Nake

What power structures are inherent to the field of computer-generated art? In the year 1965, so 60 years ago, the first three exhibitions of art created with the help of computers took place - in part independently of each other. We want to present the interesting aspects of developments since then and discuss them with Frieder Nake, one of the people who exhibited in those very beginnings and followed those developments with a critical attitude.

Building a NOC from scratch (de)

lilly

Learn from our mistakes during the first iteration of Network Operations for Europe's largest furry convention, Eurofurence. Dieses Jahr hat ein kleines Team aus dem Chaos, Furries und Chaos-Furries ein neues Netzwerk-OC gegründet, um die Eurofurence mit gutem premium 👌 Internetz auszustatten. Wir erzählen von unseren Erfahrungen und den sozialen sowie technischen Herausforderungen.

Fuse

OpenAutoLab: photographic film processing machine. Fully automatic and DIY-friendly. (en)

Kauz

OpenAutoLab, an open source machine, that is capable of processing contemporary color and black-and-white films for analogue photography, is being presented here. It made its first public appearance at 37C3 and was already seen there in action, but had no organized talk or proper presentation. Now it is better documented, waits to be built by more people and to be further developed by the community. This talk is about motivation behind developing OpenAutoLab and about the technical decisions made during it. It is argued that any dedicated film photographer is able to get one built.

Chaos all year round (de)

Deanna

Neben dem Congress gibt es noch viele andere Chaos-Events, die über das ganze Jahr verteilt stattfinden. Das Easterhegg, die GPN und die MRMCD kennen vermutlich die meisten Chaos-Wesen. Aber was ist eigentlich mit den ganzen kleineren Veranstaltungen?

Coding Dissent: Art, Technology, and Tactical Media (en)

Helena Nikonole

This presentation examines artistic practices that engage with sociotechnical systems through tactical interventions. The talk proposes art as a form of infrastructural critique and counter-technology. It also introduces a forthcoming HackLab designed to foster collaborative development of open-source tools addressing digital authoritarianism, surveillance capitalism, propaganda infrastructures, and ideological warfare.

From Silicon to Darude Sand-storm: breaking famous synthesizer DSPs (en)

giulioz

Have you ever wondered how the chips and algorithms that made all those electronic music hits work? Us too! At The Usual Suspects we create open source emulations of famous music hardware, synthesizers and effect units. After releasing some emulations of devices around the Motorola 563xx DSP chip, we made further steps into reverse engineering custom silicon chips to achieve what no one has done before: a real low-level emulation of the JP-8000. This famous synthesizer featured a special "SuperSaw" oscillator algorithm, which defined an entire generation of electronic and trance music. The main obstacle was emulating the 4 custom DSP chips the device used, which ran software written with a completely undocumented instruction set. In this talk I will go through the story of how we overcame that obstacle, using a mixture of automated silicon reverse engineering, probing the chip with an Arduino, statistical analysis of the opcodes and fuzzing. Finally, I will talk about how we made the emulator run in real-time using JIT, and what we found by looking at the SuperSaw code.

Am Spätverkauf

No-Input (de)

CooperfrauMelissengeist

Ein geschlossener Kreislauf aus Klang und Störung. Kein Instrument, kein Ursprung, nur das Rauschen, das sich selbst gebiert. Frequenzen kratzen an der Grenze zum Bewusstsein, Feedback wird zum Atem einer Maschine ohne Körper. Aus dem Dunkel des Signals erhebt sich ein sirrendes Mantra — chaotisch, unheilig, autark. Eine Beschwörung der Leere durch elektrische Selbstzerstörung.

Tippeln am Rande des Abgrunds (de)

tippel radio

Das "tipple radio" ist eine Collage von Singer-Songwriter-Konzert und szenischer Lesung. Es trägt gecoverte und selbstgeschriebene Songs und Medleys von Punk über Hamburger Schule bis Schlager mit Gitarre und Gesang vor und verknüpft die Inhalte der Songs miteinander. Es entsteht ein Geflecht von Musik und Text, dass Aufbrüche in Abgründen aufzeigt und Hoffnung macht sich gegen die Faschisierung in der Gesellschaft zusammen zu schließen.

Störmoment (en)

Vale

All styles Punk from hc, grunge and garage to indie, pop and post, female fronted only.

Mittagspausenpunk live (de)

Einschiss

Einschiss ist DER Ausnahmekünstler zwischen den Stationen Paracelsus Bad und Rathaus Reinickendorf der U8. Gefangen im Körper eines Mannes mit Charaktermodell German_default_3_bearded.obj macht Einschiss Musik gegen die Dinge die nerven: Nazis, Arbeit und Consent Forms (und Arbeit). Dabei setzt er modernste Technologien ein, um einen Typen so klingen zu lassen, als wäre es ein Typ mit Backing Track. Für mehr Musiker:innen hat das Bier nicht gereicht. Sorry.

Gepflegtes Grölen am Späti: Antifa-Jodler, Punkrock und Umverteilungs-Hits (de)

elenos

Das Konzept ist simpel: Wir singen zusammen. Im Angebot haben wir vier Kategorien: Politische Classics, Punkrock-Hymnen, Antifaschistische Jodler und Umverteilungs-Hits des Quartiersmanagements Grunewald in der ansprechenden Karaoke-Variante. Man muss nichts können. Mit charmanter Anleitung manövrieren wir uns zusammen durch kollektive Dissonanzen!

Chaos Computer Music Club

Katja Ruge (en)

Katja Ruge

„Planetary Visions“ with Katja Ruge (Can Love Be Synth/Synthesizerstudio HH, Electric Lights/Planetarium HH) Katja Ruge’s DJ sets are a seamless fusion of Italo, New Wave, Cosmic Sounds, 80s, Dark Disco, and Electro.

Analog to Algorithm: RSS Disco’s Underground Journey (en)

RSS Disco

From crackling Kraut and Disco records to hyper produced Techno tracks - dance music has come a long way in the last six decades, and was always strongly influenced by evolving technology. Dance music’s history is a feedback system between culture and circuitry. Each new invention—from the disco subwoofer to today’s neural-driven mastering tools—reshapes sound itself. RSS Disco’s timeline approach celebrates this continuum: a story of machines learning to groove, and humans learning to listen differently through them.

Steve Simon (de)

Steve

Als Part der ToxicFamily, die seit mittlerweile 25 Jahren Label, elektronisches Magazin, Veranstalter und einfach eine Institution in Frankfurt ist, fördert Steve, der übrigens einer der dienstältesten Residents des Tanzhaus West in Frankfurt ist, aktiv die Frankfurter Underground Clubszene und vor allem den Nachwuchs. Ob es ein Gig bei der Toxic Family Radio Show im lokalen FM Radio ist, ein CDJ Lehrgang oder einfach nur aufmunterte Worte während eines Sets - viele Frankfurter DJs haben eine Geschichte über Steve zu erzählen. Wenn Steve House Musik spielt, sieht man oft DJ Kollegen mit gespitzen Ohren an der Bar stehen - oder auch mal mitten auf der Tanzfläche - weil das Barpersonal selbst auf der Theke tanzt.

GAYLIENZ (en)

Oliotronix

Gaylienz is the new project of 3 gayliens coming from various universes. They got united to bring us an audio-visual glitch rave experience where we surf with an alien cats thru chaos and love cosmos. The audience is invited to participate too and of course to dance. Expect acid basslines, circuit bent, gayboy noise, beat constructions and analog glitch and videogame visuals - by Yelo555, Oliotronix and Maria Mam. https://www.instagram.com/gali3nz/ https://www.instagram.com/yelough.strobez/

Angie Taylor (en)

Angie Taylor

Angie Taylor is specialized in Hybrid Techno LIVE-DJ SETS, often blending it with live bass guitar and vocals to create a unique, electrifying hybrid Techno experience.

Chill Floor

Festnacht (de)

Festnacht

Festnacht is a fixture in Hamburg’s music scene. Together with L.F.T., he has steered the Neoprimitive label and event series for nearly a decade, releasing a broad range of mostly experimental electronic music from artists like Rosaceae, Children of Leir, and Alobhe, and inviting names such as Skee Mask, Anthony Rother, Bloody Mary, and Interstellar Funk to the iconic Golden Pudel Club. His DJ sets span the spectrum of Detroit-rooted techno and electro - always unpredictable, shaped by the night’s energy, and known for his skill in slowly and subtly warming up a room.

bushfya (de)

bushfya

For the Love of Music. Nothing else.

Afidissima & Alice (de)

Afidissima & Alice

Afidissima and Alice, two millennial stereotypes sharing music tips as emotional currency. Gabby radio host Afidissima delivers genre-chaotic sets drenched in dubby vibes and oozing with groove. A relentless cratedigger with questionable priorities. Alice unites musical moments and moods that refuse to be united. Seductive, whimsical, followed by familiar paths, so as not to upset the ear and inner balance. Mixed feelings becoming multiple emotions. Everything as usual – just enhanced momentum.

The Uncontrolled Manifold : dancing with sympoetic machines (de)

Christian Faubel

The Uncontrolled Manifold works with electronics and machines that possess autonomy and obstinacy. These machines are brought into interaction with each other, creating danceable polyrhythms and, at the same time, a fascinating shadow play, because the machines are mounted on an overhead projector and their interaction is projected. Analog oscillators generate self-organizing coordination dynamics and organic patterns, while motors strike rubber strings producing deep, resonant bass sounds reminiscent of shamanic drumming. Supported by the visuals spectators may feel like being dragged into the vortex of a living clock, compelled to join the performance through movement and dance.

BarbNerdy (en)

BarbNerdy

Sharing Means Caring: Most of the music of this series was recorded at a Chaos Event in the last 10 (or more) years. It is time for a new episode: https://soundcloud.com/barbnerdy/sets/mixtape-sharing-means-caring-1

Dj Sloush + Zarrt (de)

Dj Sloush aka Spitz + Zarrt

The berlin based artist duo is working under different alias solo, in duos or collectives since 2011. They are sound artists, DJs, part of Cashmere Radio (Berlin), curators, event organizers, performers and multimedia artists. “Dj Sloush aka Spitz + Zarrt aka Fellmaus will make you happy. There’s gonna be these sounds coming from the speakers, new otherworldly ones mixed with seemingly familiar yet undiscovered natural feeling waves of moods, or maybe hot and twirling rapid fire bass jumping trippin balls ones. Either way they’ll provide you with a guaranteed enjoyment of the infinite kind.”

Vorglühmarkt

stornoline (de)

Sassi

service for dance trips ⏰✨💫⏰✨💫⏰✨💫⏰✨💫 zocke für euch housy rave essentials mit nostalgischen vocals und acid lines & mache sachen bei @diskobabel 💕 und @entropiefestival ⚡️

Aladdin (de)

Hamdi

Hamdi (Berlin) House and minimal techno built for immersion. Extended mixes, controlled pacing, and Fog-filled rooms where the story unfolds gradually.

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