Chaos Computer Club - archive feed

As NGOs continuing searching the Mediterranean by boat and a few planes, it would be good to find additional effective ways to find people in distress in the sea. To be able to search a huge area in the Mediterranean its good to get more eyes in the sky. For this purpose I want to show you and discuss computer-vision approaches to detect refugee boats which are able to run on basic minicomputers (like the RPI) which are cheap enough to put on a simple drone. All done by using free open source software. Furthermore I want to present a dataset and the current codebase which enables you to help searchwing/seawatch to work on the topic about this event: https://pretalx.35c3oio.freifunk.space/35c3oio/talk/BJMGW8/

Void Linux is a general purpose operating system based on the Linux Kernel. In this talk we'd like to give an introduction about Void, why we think our work matters and talk about the challenges that we were faced during the last year. about this event: https://pretalx.35c3oio.freifunk.space/35c3oio/talk/XCU9PD/

In this talk I'll detail the Nextcloud End-to-end Encryption design, going through the steps of creating the private/public key pair, encrypting and syncing it, encrypting files and uploading them, adding devices to the trusted circle and so on. Nextcloud's E2EE is designed to protect user data from the server. The goal was to let users sync and share folders (and their contents) as easily as possible without the server ever having the ability to access the data. That rules out a web interface and has other limitations, but that's the price for knowing your server can't spy on you. It isn't and was never meant for ALL your data, as you should use a solution purely focused on E2EE instead! The nice features of Nextcloud, from online document editing to public sharing, will work on all your files except those you put in E2EE folders. The talk is reasonably technical - it doesn't delve in to code or algorithms but sticks to the general design and flow of data: how do we create and share public keys, how do we get the private key on another device without the server being able to access it, how do we encrypt files and share them and so on. about this event: https://pretalx.35c3oio.freifunk.space/35c3oio/talk/BRRGEK/

Wir haben im letzten Jahr die Hard und Software des Phone Operation Center fast vollständig ersetzt. Der größte Schritt aus Benutzersicht war, die langen DECT Registrierungsschlangen gegen eine Selbst- oder Auto-Registrierungsfunktion zu tauschen. In einem Vortrag möchten wir zeigen was wir gemacht haben, warum wir agil arbeiten, wie eigentlich ein Minimum Viable Product (MVP) geht, welche Fehler wir gemacht haben und im Nachgang eure Fragen beantworten. about this event: https://pretalx.35c3oio.freifunk.space/35c3oio/talk/8GTXCY/