Resources on Distributed Hash Tables
Distributed p2p technologies have always been fascinating to me. Bittorrent is cool not because you can download pirated content for free, but because it’s an amazing piece of technology. AtContinue reading
Algorithmic and Technological Transparency
Today I had a talk on OpenFest about algorithmic and technological transparency. It was a somewhat abstract and high-level talk but I hoped to make it more meaningful than ifContinue reading
Automate Access Control for User-Specific Entities
Practically every web application is supposed to have multiple users and each user has some data – posts, documents, messages, whatever. And the most obvious thing to do is toContinue reading
Random App Ideas
Every now and then you start thinking “wouldn’t it be nice to have an app for X”. When I was in that situation, I took a note. Then that noteContinue reading
Scaling Horizontally on AWS [talk]
On a recent conference (HackConf) I gave a talk where I tried to summarize how to do deployment and horizontal scaling on AWS. It is an overview of AWS resourcesContinue reading
Models for Electronic Identification
Electronic identity is an important concept as it lies on the crossroads of the digital, the physical and the legal worlds. How do you prove your identity without being physicallyContinue reading
Typical Workarounds For Compliant Logs
You may think you have logs. Chances are, you can rely on them only for tracing exceptions and debugging. But you can’t rely on them for compliance, forensics, or anyContinue reading
A Caveat With AWS Shared Resources
Recently I’ve been releasing a new build, as usual utilizing a blue-green deployment by switching the DNS record to point to the load balancer of the previously “spare” group. ButContinue reading
Writing Big JSON Files With Jackson
Sometimes you need to export a lot of data to JSON to a file. Maybe it’s “export all data to JSON”, or the GDPR “Right to portability”, where you effectivelyContinue reading
Proving Digital Events (Without Blockchain)
Recently technical and non-technical people alike started to believe that the best (and only) way to prove that something has happened in an information system is to use a blockchain.Continue reading