JKS: Extending a Self-Signed Certificate
Sometimes you don’t have a PKI in place but you still need a key and a corresponding certificate to sign stuff (outside of the TLS context). And after the certificateContinue reading
Multiple Cache Configurations with Caffeine and Spring Boot
Caching is key for performance of nearly every application. Distributed caching is sometimes needed, but not always. In many cases a local cache would work just fine and there’s noContinue reading
The Positive Side-Effects of Blockchain
Blockchain is a relatively niche technology at the moment, and even thought there’s a lot of hype, its applicability is limited. I’ve been skeptical about its ability to solve allContinue reading
Command-line SQL Client for IBM i 7.x (AS/400)
In the category of “niche blogposts”, this is probably the “nichest”. But it might be useful, so I’ll share it. Recently I had to interface an IBM i system (thinkContinue reading
Audit Trail in IT Context
An audit trail (or audit log) is something both intuitive and misleading at the same time. There are many definitions of an audit trail, and all of them give youContinue reading
7 Questions To Ask Yourself About Your Code
I was thinking the other days – why writing good code is so hard? Why the industry still hasn’t got to producing quality software, despite years of efforts, best practices,Continue reading
Implicit _target=”blank”
The target=”_blank” href attributes has been been the subject of many discussions. When is it right to use it, should we use it at all, is it actually deprecated, isContinue reading
How to create secure software? Don’t blink! [talk]
Last week Acronis (famous for their TrueImage) organized a conference in Sofia about cybersecurity for developers and I was invited to give a talk. It’s always hard to pick aContinue reading
Avoid Lists in Cassandra
Apache Cassandra is fast and scalable database which over the years became almost as easy to use as a traditional SQL database. At least on the surface. You an useContinue reading
Certificate Transparency Verification in Java
So I had this naive idea that it would be easy to do certificate transparency verification as part of each request in addition to certificate validity checks (in Java). WithContinue reading