CCC media team

Chaos Computer Club - archive feed

A wide variety of video material distributed by the Chaos Computer Club. This feed contains events older than two years

Author

CCC media team

Category

Technology

Latest episode

Jul 5, 2025

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Episodes

Lessons learned from migrating AI accelerator drivers from the kernel to userspace (asg2024) Video 25.09.2024

The kernel driver is dead; long live the userspace driver! In this talk, we’ll discuss the motivation, challenges and outcomes of migrating drivers for Meta’s AI accelerator chips from the kernel to userspace. Topics include: - Managing systemd units at scale - Experiences of running IPC over D-Bus - Re-writing the driver in Rust - The tooling necessary to support a variety of environments - Overa...

The road to a trusted and measured boot chain in Bootable Containers (asg2024) Video 25.09.2024

Fedora image based variants (CoreOS, Atomic Desktops, IoT) are currently built using ostree and rpm-ostree. This enables an hybrid approach where the system is managed like an image but modifications are still possible using RPMs. But this approach has limits: - It is difficult for users to customize their operating system and share those customizations. - The integrity of the boot chain is not gu...

Fixing an old Linux process memory security bug (asg2024) Video 25.09.2024

There is a well-known trade-off between security lockdowns and a user's abiliy to debug/inspect a system. The Linux kernel is finally fixing an old proc/mem security bug which illustrates this trade-off nicely. The kernel will provide a mechanism, so distros need to implement a policy according to their own security needs, to restrict proc/mem access (it gives userspace RW access to processes memo...

Full Disk Encryption in openSUSE MicroOS and Tumbleweed (asg2024) Video 25.09.2024

The openSUSE project has been looking for a Full Disk Encryption (FDE) solution since long ago. After some iterations we are converging in a systemd based solution. This talks will present the alternatives and will focus in the current proposed solution based on systemd-pcrlock. The openSUSE distribution is moving toward a FDE based on systemd, using signed policies or nvindex policies. We will re...

eBPF Data Collection for Everyone – empowering the community to obtain Linux insights using Inspektor Gadget (asg2024) Video 25.09.2024

In this presentation we show how eBPF programmers can easily distribute their programs using Inspektor Gadget, a tool designed for the creation, deployment, and execution of eBPF programs (gadgets) across Kubernetes and Linux environments. Inspektor Gadget encapsulates eBPF programs into OCI containers, providing well-understood and easily distributable units. We then detail how an end user can us...

Enhancing Security with Systemd: Secure Web Tokens and TPM 2.0 (asg2024) Video 25.09.2024

As the digital landscape evolves, ensuring robust security measures becomes paramount. In this talk, we will explore the implementation of a new systemd service designed to enhance secure web token management through TPM 2.0 and FIDO2 support. This integration facilitates seamless interaction with the xdg-credentials-portal, aiming to provide a straightforward and secure approach to handling crede...

Improving bpftrace reliability (asg2024) Video 25.09.2024

bpftrace is a popular and powerful dynamic tracer for Linux systems. In the vast majority of uses cases, bpftrace does its job quickly, efficiently, and accurately. However with the rapid increase of users, use cases, and features, the bpftrace community has started to feel (technical) growing pains. In particular, we've started to uncover various reliability issues. In this talk, we will cover wh...

Using Trusted Platform Modules (TPMs) at scale for protecting keys (asg2024) Video 25.09.2024

Meta runs a large production fleet of servers, all making extensive use of TLS for inter-host communication. As part of a general approach of securing keys against exfiltration a project has been undertaken to make use of existing TPM chips to provide secure storage for high privilege private keys. This talk will touch upon the approach taken to allow for the use of a hardware backed key without c...

Introducing azure-init, a minimal provisioning agent written in Rust (asg2024) Video 25.09.2024

[Azure-init](https://github.com/Azure/azure-init) is a fresh open source reference implementation for provisioning Linux virtual machines in Azure. In contrast to existing systems like cloud-init, azure-init aims to be minimal, focusing on basic instance initialization from Azure metadata. Azure-init also consists of a flexible structure to enable its use by other provisioning agents like Fedora C...

Reproducible and Immutable OS Images with NixOS (asg2024) Video 25.09.2024

Many consider NixOS a great tool for declarative definition of their OS, but only few know about its capabilities for Image-based Linux. NixOS offers the tools to combine modern technologies such as discoverable disk images (DDIs), unified kernel images (UKIs), and TPM-based measured boot for transforming declarative configurations into security-focused and immutable OS images for both the server...

Closing (DS2024) Video 22.09.2024

Abschluss Hiermit wird die Veranstaltung beendet. Licensed to the public under https://creativecommons.org/licenses/by/4.0/de/ about this event: https://talks.datenspuren.de/ds24/talk/YPM7GN/

**give data back** Soll ichs wirklich machen oder lass ichs lieber sein? (DS2024) Video 22.09.2024

Wieviel von und über mich steckt eigentlich schon in den großen KI-Modellen? Die kostenlose Nutzung von KI-Services bieten einen großen Mehrwert in meinem Leben. Möchte ich das honorieren, indem ich auch eigene Daten für das Training von KI freizugeben (give data back)? Habe ich überhaupt die Kontrolle darüber? Man muss schon etwas tiefer graben, wenn man wissen will, welche Daten überhaupt für di...

Staatliche Überwachung: Erfahrungen und Beispiele aus der Praxis (DS2024) Video 22.09.2024

Vortrag über die Überschneidung aus Repression und Technik **Dieser Vortrag richtet sich an Aktivist*innen. Es werden lediglich die notwendigen technischen Grundlagen erklärt, um die Überwachungsmaßnahmen zu verstehen** Die Repression gegen uns nimmt zu. Es laufen mehrere §129er Verfahren, was den Behörden eine Rechtsgrundlage für Überwachungsmaßnahmen gibt. Beschlagnahmte Smartphones, Funkzellena...

transtravel (jh24) Video 22.09.2024

Lucy, Felix Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/XWPZEJ/

Privatsphäreschonende Gesundheitsdatenverarbeitung (DS2024) Video 22.09.2024

Kann man mit Gesundheitsdaten forschen, ohne die Privatsphäre der ganzen Bevölkerung zu verletzen? Der europäische Gesundheitsdatenraum steht vor der Tür und es sieht zur Zeit nicht danach aus, dass wir mit dessen Umsetzung zufrieden sein können. Gesundheitsdaten aller europäischen Versicherten werden zentral gesammelt und nicht nur für die individuelle medizinische Versorgung gevorratsdatenspeich...

Stabilisator (jh24) Video 22.09.2024

Leopold, Vindhya Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/TVPVHV/

Minecraft Ethik (jh24) Video 22.09.2024

Maxi, Lennart, Anna Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/FSRVBU/

ELSTER - Nicht nur diebisch, sondern auch neugierig? (DS2024) Video 22.09.2024

Ist das Steuererklärungssystem ELSTER DSGVO-konform? Im April 2007 bringt der Chaos Computer Club die Meldung, dass der Staatstrojaner über ELSTER auf die Rechner zu überwachender Bürger installiert wird. Die Meldung schlägt hohe Wellen, weil sie so realistisch klingt. Sie entpuppt sich als Aprilscherz - aber wer weiß das schon so genau? Ich will mal so sagen: Der Staat hält sich sehr zurück, um d...

Save Food – Eat Food (jh24) Video 22.09.2024

Alexander, Anna, Daniel, Konrad Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/UQQ3XB/

Endiome (jh24) Video 22.09.2024

Moritz, Toni I., Jerome, Daniel, Mika Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/PQCA7R/

Alpakagotchi (jh24) Video 22.09.2024

Jona, Helena Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/PBZJN3/

Time beat (jh24) Video 22.09.2024

Gabriel, Warisara, Pablo, Ruben, Vadim, Nic, Sophie, Ile, Clara, Liora Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/FDAC7G/

Einführung in Embedded-Programmierung mit RIOT OS (DS2024) Video 22.09.2024

Deine ersten Schritte in Microcontroller-Programmierung - mit RIOT OS [RIOT OS](https://www.riot-os.org/) ist ein kleines Betriebssystem für Mikrocontroller, das von einer breiten Community und unter anderem an der TU Dresden entwickelt wird. In dieser praktischen Einführung laden wir Programme auf unsere Demo-Boards, schalten LEDs, nutzen Timer und greifen auf andere Boards über ein Funknetzwerk...

Abschlusspräsentation Hamburg (jh24) Video 22.09.2024

Alle Projekte werden auf der großen Bühne vorgestellt. Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://fahrplan.alpaka.space/jhhh24/talk/GX9SYX/

Kontrollkarten kontern! (DS2024) Video 22.09.2024

Bezahlkarten sollen Geflüchtete abschrecken und ihr Leben noch schwerer machen. Was nun? Seit November 2023 die Ministerpräsident:innen einen Beschluss gefasst haben, rollt die Bezahlkarten-Maschine. Es soll sie zwar bundesweit einheitlich geben, aber viele Kommunen sind schonmal vorgeprescht und haben sie eingeführt. Ausbaden müssen das die Geflüchteten: Bargeld-Limits, komplizierten Überweisunge...

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