Die grossen Datensammler wie Facebook und Google haben viele Schnittstellen in ihren Systemen. Die heissen APIs und bieten Zugriff auf Daten. Externe Anbieter können unter bestimmten Bedingungen auf diese Daten zugreifen und ein Geschäftsmodell darum bauen. Das ist im Prinzip so ähnlich, als wenn ein Handyhüllenhersteller für ein bestimmtes Telefonmodell eine Hülle anbietet oder ein …
How long are you supposed to hold on to your digital identity? What does it even mean to have a digital ID? In my blog post series I call Securing your digital home, I’ve written about digital identity, keys and secrets. I started writing about this because I wanted to put some better structure around … Continue reading Rebooting my digital identity
Zero-knowledge proof cryptography is something that I have lots of interest in. It’s a type of cryptography that allow a prover to prove to a verifier that a certain statement is true, without revealing anything else apart from that statement. ZK-SNARKS, a variant of zero-knowledge proofs, is being built into Ethereum (it already exists in … Continue reading Two balls and the colour-blind friend
In part 2 of this series we walked through the thought process around your digital ID. Once that’s established, you need to protect the keys and other secrets attached to this identity, such as passwords and cryptographic keys. In this blog post I will write about my own personal approach to this with some recommendations. … Continue reading Securing your digital home – part 3: keys and other secrets
Fungible currency is, or must be, a cornerstone of a democratic and free society. In this blog I will explore what a fungible currency is and why Bitcoin and Ether currently are lacking in this respect. What does “fungible” mean? Goods or items in a collection are “fungible” if all of the items have the … Continue reading Fungibility – why Bitcoin or Ether aren’t the most democratic currencies yet
If you thought blockchain and cryptocurrencies are the most avant-garde or anarchist technologies of today, I will say you’re wrong. There’s an even bigger and bolder idea out there that I’ve been following for a while — it’s called Urbit. I must admit that I didn’t fully understand Urbit, until recently when I started playing … Continue reading What is Urbit?
In part 1 of this new blog post series, I explained what one’s “digital home” is and why one might want to secure it. In this blog post, we’ll start with the foundation of a secure life — identity. What’s a digital ID? We use and depend on digital goods and services everywhere, in our … Continue reading Securing your digital home – Part 2: Identity
With the recent news concerning the arrest of Marcus Hutchins — the security researchers who stopped the biggest-ever ransomware attack — I’ve been thinking (more than usual) about the ethics of software development. But before we go into that, who’s Marcus Hutchins and what did he really do? Hutchins, is a so-called security researcher which … Continue reading Should developers be responsible for potentially harmful software?
Your own digital privacy and security is incredibly important these days. So many aspects of our day-to-day life rely on digital services. I don’t think you would ever leave the door unlocked to your home while you’re away, leave you bedroom window blinds open while you’re sleeping or broadcast your private conversations over speakers on … Continue reading Securing your digital home – part1: overview
Up until a few weeks ago I never used tools like password managers or digital keychains to keep track of my passwords, recovery codes etc. I’ve had a system in my head for each service and password where I consistently could (kind of) encrypt each password into a 16 character long string. All passwords were … Continue reading Padlock – my new password manager