Regular readers of this blog will have listened to me talking about crypto-agility and quantum safety quite a bit. Quantum Safety is all about making sure that we are prepared when a quantum computers are powerful enough to be a…
In 1936, Alan Turing proposed the Turing machine, which became the foundational reference point for theories about computing and computers. Around the same time, Konrad Zuse invented the Z1 computer, considered to be the first electromagnetic binary computer. What happened…
What does Quantum Safety mean, how do we get there, and what does this have to do with Bitcoin? The Threat that Quantum Computers pose to Cryptography is the “killer app” for Quantum Computing. This topic strangely receives both a…
A peek at Facebook's Libra blockchain from a cryptography and quantum-safety point-of-view Facebook finally unveiled the long-rumored crypto-currency and associated blockchain Libra. While there are plenty of things to unravel (like Libra not actually being a blockchain), I wanted to…
You've heard me rambling about Quantum Computers and the impact they will have on cryptography. Probably the biggest and most well-known impact is that they will be able to use Shor's quantum algorithm to crack all RSA/ECC cryptography. Fortunately, Quantum…
The Perfect "Harvest Now - Decrypt Later" Attack In my previous article, I described how Quantum Computers threaten the foundation of current cryptographic algorithms, but critics might say that a Quantum Computer is not yet available and won't be…
Quantum Computers and its possibilities are almost now a daily news item and while there is no doubt that Quantum Computers will revolutionize our traditional computers, we are not quite there yet. But not just in terms of the number…
As you may know, producing good quality random numbers is far from easy - yet they are incredibly important. Random numbers protect every cryptographic operation and many security foundations rely on random numbers being really random. But how can a…
Back in December, I had the privilege to attend my very first ever Quantum Computing conference and it will certainly be a conference that I'll never forget. Some takeaways from this conference: Quantum Computing is one of the most exciting…
The first Quantum Key Distribution (QKD) protocol was proposed in 1984, forming a very "cool" method to leverage the fundamental property of quantum nature that if you observe a system, you irreversibly change its properties. This is a fancy way…
