SSL certificate errors

I’ve just been along to the PruHealth website. Unfortunately, it turns out that their SSL certificate expired last night, so I get a big warning message when I try to access the site. I’ve reported the problem to them, and they should be able to fix it fairly easily, i.e. renew the certificate. However, I’ve …

Digital certificates

I’ve been taking an interest in computer security recently, and as part of that I’ve been investigating digital certificates, primarily in the context of code signing (e.g. applications/macros/plugins). There seem to be two main misconceptions here (at opposite ends of the scale), which are worth addressing: 1. “If something has been signed then it’s safe.” …