I'm so down with this. Nice one. Happy to share what I'm up to.
I work closely with a genius cryptographer. I trained as a lawyer, but I'm much more a technologist. I'm not the world's best programmer, despite having run software development companies most of my adult life.
My cryptographer friend is deeply experienced. He built a bunch of the stuff that we use every day. He was part of the team that standardised X.509 at the ITU in the late 80s. For those playing at home, that's the protocol that puts the s in https, and enables you to sign PDF documents. It also enables you to do credit card transactions, and a bunch of other stuff. Suffice it to say that he's been doing cybersecurity for a while, and knows where all the bodies are buried.
He doesn't think much of PQC, or QKD, and several other TLAs. One TLA that he does like is ITS, or Information-Theoretic Security. In fact, the new (and extraordinary) digital infrastructure that he's built is based on the work of Claude Shannon, the creator of Information-Theoretic Security. You will have heard the name Claude quite a bit lately. Now you know. 😉 He's basically Einstein, but for computing and communications. It is bonkers that some stochastic parrot named after him is more famous than he is, but that's the world we live in. 🦜 Anyway.
So, because my childhood was largely a process of osmosing telecommunications from my old man, as I pestered him with every question possible, in his chaotic workshop full of oscilloscopes, capacitors, diodes, cathode ray tubes and bits salvaged from telephone exchanges, I was able to hold up my end of the conversation with my cryptographer friend, when I met him, eight years ago. In fact, he and my father had both worked for the same company, for the first twenty years of their careers, which was called Telecom Australia.
Telecom was the beating heart of Australia. It got foolishly ripped out and sold off, and Telecom Australia became Tel Stra. Telstra. Get it? I'm still pissed off about this.
Do you know what I'd like to do? I'd like to re-build Telecom Australia: go around all the op shops in country Australia and buy up all the ties and jumpers with the old orange logos on them and rebuild the thing from scratch, and go toe to toe with Telstra. 😆 And every other idiot telco on the planet that left the back-door open when VoIP kicked in (about 5 minutes after Telecom was privatised in the early 90s).
You know what happened then?
Scammers.
MF scamming Cs and A***h**** spoofing the reply to address on calls, masquerading as Microsoft support, or the fuzz, or some Nigerian prince needing your grandma's help to get his gold bullion out of the country to build an orphanage. There must be a particulary vile suburb in hell for these people, or we'll have to go there and build that ourselves too. Maybe we get AI to do it ... But first, we need to shut their business model down.
Anyway ... somewhat colourfully off topic, but also not. Scammers are enabled by the lack of a secure identity protocol on the Internet. This is what my cryptographer friend has built, and what my company is bringing to market. It is built to be secure against the worst of the scammers with access to the most powerful quantum computers in the future. It is able to do this because of the work of Claude Shannon, and the work of Gilbert Vernam (the Vernam cipher) that he adapted.
So, that's fun.