Chaos Computer Club - archive feed

In this presentation, we will be updating the audience on the ongoing modernization efforts of the software developed inside The Tor Project -- the organization behind the most widely deployed anonymity network on this planet. We will look at upcoming features and changes to the core technology that drives the Tor network and why a Browser may no longer be the only product we have to provide for the user-base that is so crucial in need of Tor's anonymity properties for safe internet access.

The Tor ecosystem is currently going through a more extensive modernization phase where we are simplifying our goals slightly to make space for larger projects that we find necessary.

This work includes implementing a new, more memory-safe Tor implementation in the Rust programming language named Arti. This work will make it easier for application developers to integrate their applications and benefit from the safety features that Tor can provide.

Additionally, we will talk about some recent or upcoming changes to the network:

- Give a status update on deploying modern congestion control algorithms in the Tor network. This work should significantly enhance the performance barrier that most Tor users experience.

- The roadmap towards UDP support in the client and relay software. This work should allow more modern use-cases of the Tor software such as voice and video communication, WebRTC, and other protocols that leverage datagram-based data transfer.

- Move to more modern cryptography in Tor's protocols, including support for Post-quantum cryptography and why this is needed.

- Allowing Tor users to access the network using a VPN-like tunneling mechanism as an alternative to simply web-browsing and other socks5 enabled applications.

about this event: https://c3voc.de

I have for a few decades worked in networking and security, and everything seems to have grown.

I will try to lay out a path for people who wants to get into networking and security, with some references to pentesting, software security, and related areas. Where to start and which skills you should start learning.

I will use my existing courses as a guide. These are taught as part of the of the Diploma in IT Security at KEA Kompetence https://kompetence.kea.dk/uddannelser/it/diplom-i-it-sikkerhed

Note: I will reference book resources, but if you are on a tight budget lots of other resources may be used instead.

Related links: https://zencurity.gitbook.io/kea-it-sikkerhed/ lecture plans and book references https://github.com/kramse/security-courses all my training and educational materials, including exercises booklets with small exercises that you can do with virtual machines like Debian and Kali Linux using lots of open source tools.

about this event: https://c3voc.de

Hacker, Security Specialist @ WithSecure, Climber and CTF Player with too much DevSecOps knowledge.

about this event: https://c3voc.de

I have had an interest in the overarching area of interactive fiction (IF) for many years. IF covers such diverse areas as:

- text adventure games,

- choose-your-own-adventure books,

- visual novels,

- multi-user dungeons, and

- textual elements in mainstream games, such as dialogue trees.

I would like to make my own text-based game, so for this talk I want to explore the design space of IF in order to figure out what kind of game I'll be making.

IF has been popular for over 50 years and is still being actively created. As such, much has been written about it, and I won't be able to cover even close to everything. I'll start off by giving a basic overview, but most of the talk will concern itself with the specific subtopics of IF that I have found to be especially interesting and open to fun experiments. It'll be like thinking aloud, except hopefully better structured. Fun subtopics include:

- The ease of iterative development: Everything is text, so it's easy to change major elements or restructure parts of a game.

- The possibilities of multi-player storycrafting: Assuming the end goal is to create a fulfilling story for multiple people playing the same game, what are the different ways of harnessing the creative output of more than one person in a structured way?

- Simulated world vs. static graph of choices (and everything in-between): The underlying technology should not matter to the user enjoying a piece of IF, but the underlying model for your IF is likely to affect your design choices in other parts of your game. Where does a good compromise lie?

- Computer-assisted narratives: You don't have to write a story on your own — you can also ask a computer to do that. That can be fun in itself, but there is also a middle road where you're still the main author, but maybe use a computer tool to aid you in exploring plots and character traits.

- Ideas of IF that can also be applied to non-interactive fiction: The normal representation of an ordinary book is (essentially) a list of sentences, where each sentence describe something in the world. What other IF-inspired representations could be used, and how can we guarantee that we can encode narrative goals that can be fulfilled by our story?

On the practical side of things I'll touch upon a few existing IF systems that I think are interesting, but the main focus will be on whatever small experiments I have coded myself.

Who knows, maybe this talk itself will also contain interactive choices that you, the audience, need to make...

about this event: https://c3voc.de

Digital regulation starts in the EU - both at a global level and in the EU. So what has the European legislators been up to and what can we expect for remainder of the mandate of the Commission and Parliament.

about this event: https://c3voc.de

Tandoor makes it easy to import your favorite recipes found on the various food blogs of the internet. Once you have imported all the things, you can apply your own modifications, and maybe switch out exotic foods/oils with something common that you prefer. What you can then do is use the recipes to create a meal-plan, and from that create a shopping list.

In the talk I will do a demo of the various features of Tandoor.

www: https://tandoor.dev code: https://github.com/TandoorRecipes/recipes

about this event: https://c3voc.de

In 2021 we founded the WTF eG a coop company in Germany. It is a company which is owned by its members and each member has one vote. The goal is to economically empower hackers and members of the chaos community. The goal is to build an "operating system" from easy economic interaction from collection small donation to build virtual teams/company. Over the past 1.5 years, we have created many processes and software to achieve these goals, but more needs to be done. In this talk you will learn a little about coops, Germanies broken systems, what the basic idea was, how it is going, what our numbers are and what we can offer today and tomorrow.

about this event: https://c3voc.de

Using scraped restaurant menus, we bust pizza hypothesis and shed light on economic purchasing power using the Margherita index, ingredient embeddings using pizza2vec, and optimizing pizza purchases using linear programming.

about this event: https://c3voc.de

I am bad at keeping disks alive over a long period. As such, I have elected to put my collection of personal photos and videos up in the cloud

This works fine, but sometimes it's useful to be able to share a photo gallery with friends and family with a simple link to a website.

Many solutions to this exist, but most of them seem bloated. I have created a simple S3 media browser with all configuration stored in a single declarative file. It supports useful degrees of authentication (I think) and thumbnails.

In this talk I'll show how it works and some examples of configuring it.

See https://github.com/nqpz/roundworm for the code.

about this event: https://c3voc.de

A brief overview of the cooperative data.coop. A data storage community with our own hardware.

We will talk about the last year, how we have evolved and look a bit at our tech stack and our organization structure.

There is a meetup later in the day, where you can come and talk to us and get involved :D

about this event: https://c3voc.de