Chaos Computer Club - archive feed

Das Wissen über Open Source Tools, der Zugang zu datensensiblen Technologien und das Verständnis, warum das Datensammelverhalten des DB Navigators ein Problem ist, sind hauptsächlich einer sehr priveligierten Gruppe von Menschen vorbehalten. Das @all-Kollektiv hat es sich zur Aufgabe gemacht diesen Nerdgap zumindest ein bisschen zu schrumpfen und mehr Menschen an netzpolitischen Diskussionen teilh...

Kurze Vorstellung eines HW Hacking 101 Boards und Motivation Im Rahmen einer IT-Security Vorlesung (Vertiefung) an der DHBW in Mosbach kam die Idee ein kleines Hardware Hacking 101 inkl. Hardware und Challanges zu erstellen. Das Test-Board und Challanges sind so aufgebaut, das diese mit vorgelagerten Vorlesung und Übung an zwei 4-5h Blockveranstaltungen gelöst werden können. **Ziel:** Den Student:...

We present THE ANALOG THING, an open source / open hardware project demonstrating how analog computers work. There is no processor in this board. Analog Computing is an unconventional computer architecture based on mathematical analogies. It shares aspects with quantum computing (nonalgorithmic, initial state preparation and measurement) but is way easier to grasp. 5mins of your time are sufficien...

Get an understanding of what the Free Software Foundation is and what we are doing to empower user to control technology Software is deeply involved in all aspects of our lives. Free Software gives everybody the rights to use, understand, adapt, and share software. These rights help support other fundamental rights like freedom of speech, freedom of press, and privacy. about this event: https://pr...

When using Google Cloud, default configurations and policies are enabled by default that might lead to an increase in the attack surface. These configurations include, and not limited to, identity and access management (IAM) and network setup. about this event: https://pretalx.c3voc.de/37c3-lightningtalks/talk/XM9MGR/

Chrome and Firefox's TLS certificate verification have a weird hack, and it might be a long term mistake, this talk quickly goes over the quirk, and provides data on how many people it impacts about this event: https://pretalx.c3voc.de/37c3-lightningtalks/talk/XGML8T/

The texts for this piece were originally written as part of a revision of the Homeric Hymn to Demeter; a revision which broadens the picture of Black women who are descendant of colonial enslavement. A dialogue based on the contrast of Artemis’ power and agency over her body compared to women who have been unsafe for generations. Women who carry these wounds as warnings and a call out for accounta...

Supereffiziente digitale Technik als Lösung aller Probleme oder doch lieber die selbstgebaute ressourcensparsame Low-Tech-Variante? Die Zukunftsvorstellungen, die den Einsatz digitaler Technik und ökologische Fragen zusammendenken, sind in der deutschen Diskurslandschaft nicht gerade üppig gesät. Im Vortrag werden die Ergebnisse einer Kurzstudie präsentiert, bei der wir die Zukunftsvorstellungen d...

Universities can be important creators of digital public spaces and use, design and provide public-interest network structures such as the Fediverse. In line with its FLOSS tradition, the University of Innsbruck focuses on the Fediverse and has established an instance on university servers. Alongside insights into the process, motivation and networking is the aim of this Lightning Talk. Universiti...

FIM (Fbi IMproved) is a "swiss army-knife" image viewer for: either the Linux Framebuffer or the graphical environment, or in text terminals (ASCII Art, also coloured), with a consistent interface and with many powerful features. FIM is known among enthusiasts of Raspberry Pi and other minimalistic computing devices, but also among VIM/Emacs users seeking functionality, configurability, and flexib...

I will explain and propose to use a storage technology based on a cardinality estimation algorithm called HyperLogLog for the so-called secondary use within the European Health Data Space EU launched the European Health Data Space to make health records of all Europeans accessible from anywhere. The so-called "secondary use" of these data should be made available for research, decision-making, dev...

You like to tinker with electronics, software or mechanical design in your spare time? 🧑‍💻 And would you like to develop a system as part of a supportive team? 👥💪 This talk invites you to join some devs working on a small open source project. 👋 Our goal is to experiment and play with technology while working together towards a common product. 🚀 The system we develop is a combination of a han...

The SerenityOS project has been developing a from-scratch Unix desktop operating system over the past five years. A five-minute look at what that means and why it's interesting. The SerenityOS project has been developing a from-scratch Unix desktop operating system over the past five years. The system has excellent vertical integration, since we write all the software ourselves, from standard libr...

The new version of the open source event system eventyay is currently being developed and we will release the first version in February. In this lightning talk I will share about the exiting features and AI capabilities we are working on. about this event: https://pretalx.c3voc.de/37c3-lightningtalks/talk/WBRVVN/

We're tackling a key issue in international development cooperation by empowering local change agents with direct funding and a platform to share their data and stories. Our mobile-first solution will combine e-payment and information sharing, addressing an industry-wide challenge. We present an approach to address a fundamental challenge of international development cooperation. Currently, the se...

These days, English is the _lingua franca_, the language that “everyone” speaks and understands. But which English? Our common choice is between two different waning empires that have been imposing their culture and voice on the world for the past few centuries. For most audiences, this is a choice between two foreign locales. We need to do better. We can choose another English: an International E...

High performance computing (HPC) in environmental science is usually associated with research on climate change, investigating the impact of atmospheric greenhouse gases (GHG) over the next century. Besides these GHGs, there are many other gases and aerosolos in the atmosphere, which have a much more direct and immediate impact on human health: air pollutants. The World Health Organization (WHO) c...

Smartphones sind in den letzten zehn Jahren zu einem allseits beliebten Angriffsziel geworden, sei es für Stalkerware, Staatstrojaner oder Banking-Malware. In diesem Vortrag wollen wir einen Überblick geben, mit welchen Techniken und Open-Source-Tools man auf Smartphones (unter iOS und Android) auf die Jagd nach Malware gehen kann. Im Anschluss findet ein Workshop mit einem praktischen Teil zum Au...

Fordite are polished bits of many layers of hardened enamel car paint. Originally, this car paint was just dumped, until some years ago, when people started to dig them out of the garbage dump, polished them and used them in jewellery. I wrote some code that simulates that process to generate pretty (2D) images and animations. I will quickly show what actual fordite is, then show my early attempts...

Most social networks use proprietary algorithms to recommend new content and keep you on their platform for as long as possible. Other platforms don't use advanced algorithms, but this can make it difficult to discover new content and communities. What if, instead, everyone could simply build their own transparent open source algorithms and publish them for everyone to use? This is possible on Blu...

This talk will explain the Apple Wireless Direct Link protocol, which is the basis for AirPlay and AirDrop. about this event: https://pretalx.c3voc.de/37c3-lightningtalks/talk/QGSENV/

In this talk, we delve into the captivating realm of TCP/IP stack fuzzing. As the backbone of internet communication, the TCP/IP stack is a prime target for cyber threats. This presentation will unravel the intricacies of fuzzing techniques applied to several TCP/IP stacks, shedding light on how these methodologies can uncover bugs, crashes and vulnerabilities. From the fundamentals of packet fuzz...

A short introduction into the session that shows how everything works. about this event: https://pretalx.c3voc.de/37c3-lightningtalks/talk/HMAEGD/

With the rapid growth of AI and Large Language Models users are facing an increased risk of scams, data exfiltration, loss of PII, and even remote code execution. This talk will demonstrate many real-world exploits the presenter discovered, including discussion of mitigations and fixes vendors put in place for the most prominent LLM applications, including ChatGPT, Bing Chat and Google Bard. Under...

Ensuring the integrity of Integrated Circuits (ICs) against malicious hardware Trojans is paramount for secure electronic devices. One approach involves imaging the manufactured chips to compare them with their original design files. While such techniques for detecting Trojans are relatively well-known in the industry, there is a notable absence of comprehensive, publicly available case studies. T...