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Machine Vision (39c3)
Milliarden von Kameras produzieren täglich Bilder, die zunehmend von Maschinen analysiert werden. In dieser Lecture Performance beleuchten wir die Entwicklung des maschinellen Sehens – von den frühen algorithmischen Ansätzen bis zu den heutigen Anwendungen – und schauen, wie verschiedene Künstler:innen diese Technologien nutzen und reflektieren. Anhand der beiden Arbeiten „Throwback Environment” und „Fomes Fomentarius Digitalis” betrachten wir die Nutzung des maschinellen Sehens in einem künstlerischen Feedback-Loop. Die Arbeiten machen sichtbar, was die eingesetzten Algorithmen sehen und in welchen Mustern sie operieren. Unmengen an Bilder werden Täglich in die Netzwerke hochgeladen. Doch nicht nur Menschen betrachten...
Xous: A Pure-Rust Rethink of the Embedded Operating System (39c3)
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...
Textiles 101: Fast Fiber Transform (39c3)
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. Textiles play an integral part in our daily lives. If you’re reading this, chances are...
freiheit.exe - Utopien als Malware (39c3)
"freiheit.exe“ ist eine Lecture über die ideologischen Rootkits des Silicon Valley. Sie schlägt den Bogen von den italienischen Futuristen zu den heutigen Tech-Feudalisten, vom Akzelerationismus zur Demokratieskepsis der Libertären, von Tolkien zur PayPal-Mafia. Basierend auf den Recherchen zu meinem Theaterstück "freiheit.exe. Utopien als Malware", in dem journalistische Analyse auf performative Darstellung trifft. Ich lade das CCC-Publikum ein, die Betriebssysteme hinter unseren Betriebssystemen zu untersuchen. Während wir uns mit Verschlüsselung, Datenschutz und digitaler Selbstbestimmung beschäftigen, installieren Tech-Milliardäre ihre Weltanschauungen als Default-Einstellungen unserer digitalen Infrastruktur. Die Recherchen beleuchten die mitgelieferte Malware. Ich navigiere durch die Ideengeschichte zwischen Marinettis...
51 Ways to Spell the Image Giraffe: (39c3)
Generative AI models don't operate on human languages – they speak in **tokens**. Tokens are computational fragments that deconstruct language into subword units, stored in large dictionaries. These tokens encode not only language but also political ideologies, corporate interests, and cultural biases even before model training begins. Social media handles like *realdonaldtrump*, brand names like *louisvuitton*, or even *!!!!!!!!!!!!!!!!* exist as single tokens, while other words remain fragmented. Through various artistic and adversarial experiments, we demonstrate that tokenization is a political act that determines what can be represented and how images become computable through...
Reverse engineering the Pixel TitanM2 firmware (39c3)
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. I will discuss the problems encountered while reverse engineering and simulating the firmware for the TitanM2 security chip, found in the Google Pixel phones. I'll discuss how to obtain the firmware. Talk about the problems reverse engineering this particular binary....
Power Cycles statt Burnout – Wie Einflussnahme nicht verpufft (39c3)
Zwischen offenen Briefen, Massenmails, Petitionen und Kaffee trinken : Zwei Ex-Insiderinnen aus dem Digitalausschuss und Bundestag erzählen, wie politische Einflussnahme wirklich funktioniert. Ein ehrlicher Blick hinter die Kulissen parlamentarischer Entscheidungsfindung – mit praktischen Tipps, wie die Zivilgesellschaft ihre Energie dort einsetzt, wo sie wirklich Wirkung entfaltet. Ziel des Talks ist es, ein realistisches Bild davon zu vermitteln, wie parlamentarische Entscheidungsfindung funktioniert – und praktische Hinweise zu geben, wie man Einfluss nehmen kann, ohne dabei Ressourcen zu verschwenden. Wie bringt man politische Prozesse in Bewegung? Was passiert eigentlich mit einer Mail, wenn sie an einen Abgeordneten...
Lessons from Building an Open-Architecture Secure Element (39c3)
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...
Code to Craft: Procedural Generation for the Physical World (39c3)
Join bleeptrack for a deep dive into the fascinating world of procedural generation beyond the screen. From stickers and paper lanterns to PCBs, furniture, and even physical procedural generators, this talk explores the challenges and creative possibilities of bringing generative projects into tangible form. In this talk, I will share practical insights from developing procedural generation tools for physical objects: ranging from stickers and paper lanterns to printed circuit boards and even furniture. I will outline key challenges and considerations when generating designs for fabrication tools such as laser cutters or pen plotters, as well...
The Small Packet of Bits That Can Save (or Destabilize) a City (39c3)
The Emergency Alert System (EAS) and its SAME (Specific Area Message Encoding) protocol are public alerting technologies that broadcast short digital bursts over VHF triggering emergency messages on millions of receivers across North America. In Mexico, this technology was integrated into the Seismic Alert System (SASMEX) which more than 30 million people in the central part of the country rely on to prepare for frequent earthquakes. While new alerting technologies have emerged, the EAS-SAME network continues to play an important role for public safety in the U.S., Mexico, and Canada. Yet, the same small packets...