We have a wide variety of talks and workshops at the CDC this year. Click a date to see the schedule. Stage talks are noted in green and workshops in red.


Introduction to decentral.community

Speakers: Diego "rehrar" Salazar

Introduction to decentral.community, and to the Critical Decentralisation Cluster at 36C3.


Pocket Science Lab

Speakers: Mario Behling, François Cartegnie, hpdang

In this workshop we will introduce participants to Pocket Science Lab and collaborate with participants to conduct experiments with the project. Participants can use a mobile Android phone or a Linux desktop PC to connect to the device.


Introduction to RIAT

Speakers: parasew


Intro to the Swiss Cryptoeconomics assembly

Speakers: polto, Ome

Presentation of the members and working goups of the Swiss Cryptoeconomics assembly.


Intro to Namecoin

Speakers: Jeremy Rand

Namecoin is a blockchain (first project forked from Bitcoin) that implements a decentralized DNS and public key infrastructure, which is resistant to censorship, hijacking, and other tampering. This talk will explain the basics of how Namecoin works and what it can be used for.


Open Hardware Developed at FOSSASIA

Speakers: Mario Behling

In this interactive session we will introduce Open Hardware projects at FOSSASIA and share experience developing a project from the idea stage to market. Projects discussed include Pocket Science Lab, Neurolab, Badge Magic and more.


Paralelni Polis


Introduction to Replicant

Speakers: dllud, Denis 'GNUtoo' Carikli

Replicant is a fully free Android distribution that is approved by the FSF. This short talk will briefly explain: why Replicant came into being; the freedom, privacy and security issues it has found in devices aimed to run Android; and the approaches that it follows to liberate such Android devices.



Speakers: implicitcad


Open Source Hardware, OSHWA, and Open Hardware Summit

Speakers: Drew Fustini

Introduction to Open Source Hardware (OSHW) including the Open Source Hardware Association (OSHWA), certified OSHW, and the Open Hardware Summit



Speakers: bonnie


Fiat, Bitcoin, Monero: 2008-present

Speakers: Dr. Daniel Kim

A deep-dive summary of the technical, economic, and social aspects of fiat, Bitcoin, and Monero from 2008 to the present day. In keeping with 36C3 CDC's theme of "Respect My Privacy," this talk will emphasize features of cryptocurrencies and asset protection structures that are important to those early adopters who value their privacy.


Funding models of FOSS

Speakers: Diego "rehrar" Salazar

Diego talks about various FOSS funding models, which are the most successful, and how to make FOSS sustainable for the upcoming years.


The sharp forks we follow

Speakers: Ome

In this talk, we will discuss forks as human consensus failure modes, why they happen and their consequences. We will look at examples of forks in different social structures: from hunter-gatherer tribes and religious factions, to open source projects and, particularly, the cryptoeconomic protocols that enable decentralized infrastructure. We will cover the dynamics at play in forks from multiples angles: technical, economical, political, and theological.


P2P Trading in Cryptoanarchy

Speakers: m52go

How can we trade directly with another party on the internet, without involving a trusted third party or legal system? Is there a way to trust the other party to be honest? Bisq recently implemented a dispute resolution system that keeps control of escrowed funds between the 2 traders only (2-of-2 multisig, instead of 2-of-3 multisig with trusted arbitrator). See how it combines game-theoretic, financial, and cryptographic tools to accomplish sovereign (and anonymous) peer-to-peer trading.


Meet the Community - Connecting to Amazing Software and Hardware Developers in Asia and Europe

Speakers: Mario Behling

In this panel we will share our experience connecting to amazing developers in Europe and Asia. We will talk about running events for 10 years, creating coding programs and contests and getting the funding necessary to move things forward.


An Overview of Monero’s Adaptive Blockweight Approach to Scaling

Speakers: Francisco "ArticMine" Cabañas

Monero has a unique among the major crypto currencies approach to scaling, that relies on a penalty driven adaptive blockweight (blocksize) and a minimum or tail block reward. This is fundamentally different from the fixed blockweight and falling bock rewards that are prevalent in Bitcoin and Bitcoin clones. We will provide an overview of Monero’s adaptive blockweight, fee market and how blockweight differs from blocksize together with the dual median changes and transaction changes that were introduced in the 2019 spring and fall network updates. We will compare adaptive vs fixed blockweights, and the impact of minimum block rewards (Monero) vs falling block rewards (Bitcoin and Bitcoin clones) on long term network security.



Speakers: Harry Halpin

Nym is a decentralized and incentived mix-network that can defeat even global passive adversaries. This event will launch the "alpha" Rust mix-net of Nym, and demonstrate the use of validators to create anonymous authentication credentials to access the mix-net.


Digital integrity of the human person

Speakers: Alexis

Description/Abstract: Every human evolves today in multi-dimensional physical and digital environment. If each individual is to keep its individuality and autonomy in its daily choices, it must be protected and given effective tools to defend its own autonomy. Recognizing that human life has been digitally extended must question ourselves on what makes us human today. Should personal data be considered as component of the person, rather than objects that can be owned by whoever collects that data? Should our digital integrity be protected? If each human person already has a right to physical and mental integrity (Swiss Constitution article 10 al.2), shouldn't it have a right to digital integrity? This talk will introduce this new legal concept, its possible implications for data protection and how this concept could be introduced in the current legal framework.



Speakers: cyber~Congress

Our mission is to fuckGoogle and other megacorps. We are geeks that build open-source things. Code first. Everything else later.


SUSI.AI - Your Really Private Personal Assistants at Home

Speakers: Mario Behling

In this final workshop we bring it all together. Participants learned how to make skills and how to run SUSI.AI on the desktop and smart device. Let's bring this all together and build a cloud that you could run at home.


KYC & Crypto-AML tools

Speakers: polto

What's wrong with the current Crypto-AML mainstream approach and why it's dangerous for our economies and our societies. What is really demanded by the law and how do we see cryptography can provide answers. Kickstarting the workshop on Crypto-AML tools.


Parallel Polis, Temporary autonomous zones and beyond

Speakers: Juraj Bednár

Cryptoanarchy creates spaces of liberty in the virtual space - encryption, anonymity, free trade using digital money. Can we use some of the principles to achieve liberty in physical space? How to create parallel social institutions.


Adventures and Experiments Adding Namecoin to Tor Browser

Speakers: Jeremy Rand

The Namecoin and Tor developers are running a new experiment: the GNU/Linux Nightly Builds of Tor Browser now have optional support for resolving Namecoin's .bit domains. This experiment aims to provide a fix for the long-standing UX problem with .onion domains: the lack of human-meaningful names. With Namecoin, you can access onion services via nice, memorable addresses like http://federalistpapers.bit/ instead of http://7fa6xlti5joarlmkuhjaifa47ukgcwz6tfndgax45ocyn4rixm632jid.onion/ . In this talk, I'll cover the goals of the experiment, the work that went into getting here, and the work that remains to be done.


Fair data society

Speakers: Gregor

Fair data society is a non-profit initiative working towards decentralised data commons that will provide an alternative to surveillance capitalism, the alternative being, a fair data society.


Open Data PSI

Speakers: vavoida

Lightning talk on open data and the upcoming public sector information


Building an (Actual) Alternative

Speakers: Deanna MacDonald

Privacy and freedom within the context of cryptocurrencies, zero-knowledge-proof systems, decentralised protocols and other privacy protection layers is about co-creating and co-shaping alternatives to empower individuals to control their own data. What is the role of Monero in building an actual alternative and preventing the public ledger from becoming another behaviour extraction and surveillance tool? As a community, what type of counter-narratives do we need to create to support this movement?


Introduction to day 3


Almonit project: Decentralized Websites

Speakers: neiman

Almonit is a project for decentralized websites and web services. Decentralized websites and web services are an alternative to the way the web functions today. They combine decentralized storage (like IPFS), decentralized name services (like ENS) and P2P networks in order to replace the server-based model of the web. This lecture describes the Almonit project, its architecture, the technical details of the technology and the ecosphere in which it is created. Come discover the state-of-the-art of this up-and-coming area!


Why your project should support passwordless login, FIDO2, WebAuthn

Speakers: jans

A login form with user name and password is implemented quickly. But passwords don't scale from the user perspective and the new WebAuthentication standard is there to replace them. This presentation gives an introduction to WebAuthn and FIDO2, why to implement it, how to use it etc.


Create Personal Bots for Web and Smart Devices with SUSI.AI - Part 1

Speakers: Mario Behling

In this on stage workshop we run participants through a tutorial to create basic SUSI.AI skills and bots, that they can embed on their website or run on a smart speaker.


Crypto UX Design

Speakers: Christoph Ono

Thoughts and insights on working as a UX designer in open-source and crypto, specifically contributing to Monero.


Developments at Monero Hardware

Speakers: MSvB

In this half hour overview, we report progress made on projects at Monero Hardware. Physical, electromagnetic, and electronic hardware devices protect funds, secrets, and privacy by design. We consider concepts, learn how devices are made, and review a features roadmap. Wallets are distributed for hands on inspection, and a demonstration teaches the basics of embedded firmware development.


Linux on Open Source Hardware and Open Source chip design

Speakers: Drew Fustini

This talk will explore Open Source Hardware projects relevant to Linux, including boards like BeagleBone, Olimex OLinuXino, Giant board and more. Looking at the benefits and challenges of designing Open Source Hardware for a Linux system, along with BeagleBoard.org’s experience of working with community, manufacturers, and distributors to create an Open Source Hardware platform. In closing also looking at the future, Libre Silicon like RISC-V designs, and where this might take Linux.


Privacy coins and resource constrained Hardware Wallets

Speakers: btchip

This presentation will provide details of the implementation of privacy coins (Monero and Liquid) from a signer/checker perspective on a resource constrained (10 kb RAM, 28 MHz Cortex M0+) hardware wallet, and show typical mistakes than can be made along the way.


RMX hardware wallet

Speakers: Pavel Polach

We are building a hw device for privacy extremists and we want to talk a bit about it.



Speakers: Viktor Tron

The talk will give a short untroduction to Swarm and will also provide latest updates and road ahead.


Blockchain Sharding

Speakers: Cheng Wang

In this talk, I am gonna first give a short review of the current popular sharding methods, with a focus on the open problems. Then I am gonna talk about Alephium's innovative sharding solution, and why it could the promising approach.


On bitcoin-monero atomic swaps

Speakers: Joel “h4sh3d” Gugger, p

In this talk we propose an approach on bitcoin-monero atomic swap, its development state and open problems.


Blockchain Interoperability: NIPoPoWs & Sidechains

Speakers: Kostis Karantias, Dionysis Zindros

We will talk about various means of communication between proof-of-work blockchains such as superblock NIPoPoWs and how to use them to build one-way and two-way transfer of information between chains without a trusted third party.


Bitcoin to the Post-Quantum Era

Speakers: Dragos Ilie

Given the amount of funding and research that recently goes into quantum computers, it seems inevitable that at some point in the (near) future these machines will become a reality. With my physicist's hat on, this is exciting and amazing news, but as a cryptographer this is a nightmare. Most of our most efficient and widely used signature schemes would just go away in the blink of an eye. Is this the case for Bitcoin? Can we do anything to move Bitcoin to the Post-Quantum Era? In this talk, I present the basic principles Quantum Computers rely on to perform certain calculations much faster than classical computers. We give a beginner’s explanation to some quantum algorithms that can undermine Bitcoin’s security and show how they can be used to hijack transactions. Finally, I present a protocol upgrade for Bitcoin that allows users to securely transition their funds to quantum resistant wallets even in the presence of a quantum computer!


3.8 Billion users' future: Email 3.0

Speakers: Sam Tuke

Hundreds of messaging platforms have launched and failed over the last 50 years, while one Open Standards, and mostly Open Source powered decentralised platform has conquered the world. What is the magic formula that has powered email to adoption by 3.8bn users, and what is the future of decentralised messaging as firms like Google and Facebook try desperately to replace it?


SUSI.AI Personal Assistant on Your Linux Desktop - Part 1

Speakers: Mario Behling

In this on stage workshop we will install the SUSI.AI personal smart assistant on a Linux Desktop Computer and support participants to set it up on their distribution, e.g. Debian, Ubuntu, Linux Mint, Fedora, CentOS or others.


Monero for Scrubs

Speakers: Diego "rehrar" Salazar

Diego walks noobs and scrubs alike through Monero, what it is, what problems it solves, and what sets it apart from the rest of the blockchain space. Along the way, he'll teach the basics of blockchain as well, so super noobs are encouraged to attend.


Proof of Less Work

Speakers: Cheng Wang

I would like to share my work on reducing the energy consumption of PoW without sacrificing security. My new type of algorithm is called PoLW, inspired by the recent work of Itay, Alexander, and Ittay. For a practical system where mining is profitable, PoLW might actually improve network security.


Open Next - Learning from Open Hardware: DevOps and Continuous Integration for the Production of Big Machines

Speakers: Mario Behling

Continuous Integration was a big buzzword with software projects already years ago and it is standard today. In projects such as Pocket Science Lab we took the idea of Development Operations a step further and apply these concepts to hardware. The increased speed of development and the possibility to produce different prototypes with a click almost feels as if we deploy software automatically. What would happen if the industry would be able to change in the same way? How could we shorten the time from prototype to production and market? What is missing to build complex and really big machines? How can standardization and machine readable requirements documents help us to create sustainable hardware and solve the problems of our time? These are some of the questions we will explore in this session based on our research within the EU Horizon 2020 project on collaborative product creation.


Designing a communal computing interface

Speakers: Matilde Park

How does a full peer-to-peer stack change how we organise and present user interfaces? If the PC was a 1970s desk for single-player computing, what's the right way to think of the way we actually use networks: communally? Matilde Park presents some findings from working on Urbit, an open source project tackling a peer-to-peer internet from scratch.


How to achieve both economic and personal freedom using globality and flexibility

Speakers: wilder

How to achieve both economic and personal freedom using globality and flexibility.


Hackatoshi's Flying Circuit

Speakers: JosefJ

Paralelní Polis' mission is to bring alternatives and tools for preventing authoritarian tendencies in society. Hackatoshi’s Flying Circuit is an intervention of cypherpunks into both virtual and physical public space to concentrate inspiration and knowledge to address sick parts of the system and fix them with solutions resulting from privacy and decentralized principles.