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
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
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
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
Integrating Applications As Heroku Add-Ons
Heroku is a popular Platform-as-a-Service provider and it offers vendors the option to be provided as add-ons. Add-ons can be used by Heroku customers in different ways, but a typicalContinue reading
Types of Data Breaches and How To Prevent Them
Data breaches happen practically every day. Personal, including financial and medical data leak to cyber criminals as well as intelligence agencies. Some notable breaches include the Equifax breach, where dozensContinue reading
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