I like modern cryptography. I quite understand some bits of it, since I had an excellent university course on that, and while the rest feels pretty magic, these are my thoughts that should be understood by anyone. My general opinion is that encryption is a mistake in most cases, but digital signatures make true sense to me, and I will focus on them. If someone gives you much data, they know more than you. This is true especially for big integer numbers. Remember RSA? This is the (still widely used) encryption algorithm that assumes that while it is trivial to know n = pq when you know two primes p and q, it is really unlikely and/or computationally expensive to guess p and q from n. ...

IPv4 has been invented in the eighties. IPv6 has quickly followed in the nineties, exactly after fourteen years of IPv4 practical application. It’s been nearly 30 years since then, and we’re still stuck with IPv4. Stuck? The main problem with IPv4 is its 32-bit addressing. It limits the Internet to 4 billion true participants (in practice even less, because of reserved address ranges, broadcast addresses, masks, and so on): less than half the world population! All its shortcomings come from this single problem. ...

So here it is! arusekk.pl is finally mine. Buying a domain is straightforward. All I did was find the registry of my favorite TLD (which is .pl for Poland), registry maintained by NASK, reachable at dns.pl. There at the list of registrars I narrowed down the list to those supporting IPv6 domain delegation (I had yet to know what it means, but I thought that it would be better to have it), DNSSEC (which I knew was something important), and that the registrar must be a Polish entity. ...

I woke up, ate my breakfast, did some workout with StepMania (a DDR clone, great game, BTW, you should definitely try it, if you like to move), practiced playing music a little on a MIDI keyboard (using QSynth with JACK (managed by Catia) for low latency response). I heard that Wine supports GTK3 themes, so I wanted to check it out, but there was none for the latest version, and that lead me to filing a bug. ...

A friend of mine recently told me that she is not smart (that’s a lie from her, since she is), but she pretends to be smart using one simple trick. She told me that the key to being perceived as smart is to have strong, carefully researched, and strongly founded opinions on some totally irrelevant details of the things you happen to talk about. While this may be a helpful advice, the worst part is that it will not make you any true expert. But if you are part of some phenomenon for long enough, you become an expert gradually. And then you start to notice the errors of those who err. ...