Chaos Computer Club - archive feed

Most thought Direct Memory Access (DMA) attacks were a thing of the past after CPU vendors introduced IOMMUs and OS vendors blocked Firewire DMA. At least until the PCILeech direct memory access attack toolkit was presented a year ago and quickly became popular amongst red teamers and governments alike. A year later the situation has improved but some firmware and operating systems still remain vu...

Wie umgehen mit politischer Ohnmacht? Das Informationsfreiheitsgesetz bietet einige Ansätze: Es macht es auch für juristische Laien möglich, gegen Behörden vorzugehen, die das Recht brechen. Wir kämpfen gegen die Ohnmacht: Dieses Jahr haben wir alle Gesetzentwürfe aller Bundesministerien und Lobby-Stellungnahmen dazu befreit. Wir haben uns mit der Berliner Partypolize...

In this traditional lecture, various teams provide an inside look at how this Congress‘ infrastructure was planned and built. You’ll learn what worked and what went wrong, and some of the talks may even contain facts! Also, the NOC promises to try and not have the network fail in the middle of the NOC presentation this time. about this event: https://fahrplan.events.ccc.de/congress/2017/Fahrplan/e...

Traditional models of application development involve talking to an underlying operating system through abstractions of its choosing. These abstractions may or may not be a good fit for your language or application, but you have no choice but to use them - you can only layer more abstractions on top of them, to try to lessen the pain of a bad match. Library operating systems let you write applicat...

This talk deals with embedded systems security and ARM processors architecture. Most of us know that we can perform security with the ARM TrustZone framework. I will show that most ARM processors include debug components (aka CoreSight components) that can be used to create efficient security mechanisms. Embedded security is still a hot topic. For several years, ARM have proposed its TrustZone fra...

KadNode is a simple approach for a decentralized DNS system that builds on top of the established Public Key Infrastructure (PKI), but can also use public keys and content hashes as links. KadNode is a P2P DNS resolver for decentralized DNS. about this event: https://c3voc.de

we will have two teams with each up to 5 players (and aditionally their relative assisants) with wifi mesh nodes, to fight in teams to get first mesh contact to a far distance computer systems, just like the fairy dust skyrocket or the next dancefloor. about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

Jordi Baylina presents his plan to deploy personal servers throughout Catalonia to build a decentralized infrastructure for the country. If you want to help, join Giveth's Riot channel and lets build the decentralized revolution together. https://giveth.io/join/ about this event: https://c3voc.de

So you've probably heard that there is this relatively new thing called cryptocurrencies, supposedly some kind of revolutionary "magic internet money", which is gaining a lot of attention (and insane valuations) lately. But what is a crytocurrency anyway? does it work exactly? Most importantly - why does it work like that? Instead of answering these questions directly, we will answer them and more...

Honigdachs ist das Podcast-Angebot des Leipziger Bitcoin-Stammtisches, in dem monatlich vertieft auf einzelne Themen rund um Bitcoin eingegangen wird. Hintergründig, praxisnah und meinungsstark richten sich die einzelnen Folgen sowohl an Einsteiger, wie auch an erfahrene Bitcoin- und Blockchain-Interessierte. Auf dem 34C3 machen wir einen Rückblick über das Jahr und den Kongress und wagen einen Au...

There are several Ethereum Superstars at this conference, they are congregating on the Chaos West Stage to answer all of your questions about the decentralized world computer. :-D www.ethereum.org about this event: https://c3voc.de

Secure Scuttlebutt is a database protocol for unforgeable append-only message feeds. 'Unforgeable‘ means that only the owner of a feed can update that feed, as enforced by digital signing (see Security properties). This property makes Secure Scuttlebutt useful for peer-to-peer applications. Secure Scuttlebutt also makes it easy to encrypt messages. Scuttlebutt is the general idea or concept around...

Collaborative and interdisciplinary research, Open Source Estrogen combines biohacking and artistic intervention to demonstrate the entrenched ways in which estrogen is a biomolecule with institutional biopower. It is a form of biotechnical civil disobedience, seeking to subvert dominant biopolitical agents of hormonal management, knowledge production, and anthropogenic toxicity. Thus, the project...

Depending on the definition, autonomous weapon systems do not and might never exist, so why should we care about killer robots? It is the decline of human control as an ongoing trend in military systems and the incapacity of computing systems to „understand“ human beings and the nature of war that is worrisome. Therefore, the envisaged military advantages come at a price as the technology raises l...

Eliminating nuclear weapons will require trusted measurement systems to confirm authenticity of nuclear warheads prior to their dismantlement. A new idea for such an inspection system is to use vintage hardware (Apple IIe/6502) instead of modern microprocessors, reducing the attack surface through simplicity. In the talk, we present and demo a custom open hardware measurement system based on gamma...

Electroedibles is an experiment with “edible” hardware that explores the limits of interaction between our tongue and circuits to mock the present fantasies of Internet of (Every)thing. This project initiated by the hardware lab at Shenkar College of Arts and Tel Aviv Makerspace consists from series of workshops, in which participants combine simple circuits (lickometer with LED, vibration motor o...

Most working engineers view machine-checked mathematical proofs as an academic curiosity, if they have ever heard of the concept at all. In contrast, activities like testing, debugging, and code review are accepted as essential. They are woven into the lives of nearly all developers. In this talk, I will explain how I see machine-checked proofs enabling new everyday activities for developers of co...

Space Solar Power station, such as SPS Alpha, could overcome some issues that renewable energy plants on Earth suffer of structural basis when challenges such as energy transfer from orbit to Earth are solved. But will this solve the Earth's problems in a peaceful way? The increasing demand on energy seems to be one of the greatest challenges for modern society. [1,2] Power generation approaches o...

The Hacker Jeopardy is a quiz show. The well known reversed quiz format, but of course hacker style. It once was entitled „number guessing for geeks“ by a German publisher, which of course is an unfair simplification. It’s also guessing of letters and special characters. ;) Three initial rounds will be played, the winners will compete with each other in the final. The event will be in German, we h...

On October 1st the Catalan society held a referendum to decide if they wanted to stay part of the Spanish state or create an independent state. This talk will explain the internet censorship which took place in the weeks before the referendum, on the very same day as well as in the timer after the referendum. The talk will focus on the methods used by the state to carry out the censorship. These i...

Anhand von Anekdoten aus 20 Jahren Softwareentwicklung versucht der Vortrag herauszuarbeiten, was in der Praxis zu scheiternden Projekten führt. Es geht nicht um Programmierfehler sondern um Fehler in der Herangehensweise, den Prozessen, falsche Anreize, etc. Bei den Antipatterns geht es um Dinge, die aus den falschen Gründen gemacht werden -- etwa einen Monolithen in eine Microservice-Architektur...

Der IgNobelpreis ist eine Auszeichnung, um wissenschaftliche Leistungen zu ehren, die „Menschen zuerst zum Lachen, dann zum Nachdenken bringen“ („to honor achievements that first make people laugh, and then make them think“). Wir erklären die Preisträger 2017 in gewohnter Minkorrekt-Manier. Es geht um Kaffeetrinken, flüssige Katzen und ganz viele primäre Geschlechtsteile. Eigentlich ein Podcast, d...

Project “Nabovarme” (meaning “neighbour heating”) has transformed private heating necessity into a social experiment build on OpenSource software/hardware and social empowerment by transforming heat consumers into Nabovarme Users and letting them take ownership to infrastructure and consumption. Christiania - a child of hippie thinking and direct democracy, est. 1971 900 inhabitants, 210 houses, 2...