What Crypto Holders and Builders Should Do Now
No quantum computer can break blockchain signatures today. The published migration deadlines still bind. Here is what to do without waiting for anyone.
Why Countries Disagree About QKD
The NSA will not certify QKD for national security use. China runs a 4,600 km quantum network. Both are current positions. Here is the…
Quantum Key Distribution, Read as a Security Control
Three national agencies advise against QKD for their own networks. Twenty-seven EU states are funding one. Both positions hold, and the reason explains how…
What a Quantum Network Is Actually For
A quantum network does not carry your traffic. It produces a narrow set of outputs, and knowing exactly what those are is the difference…
BB84 Explained: How Quantum Key Distribution Actually Works
Bennett and Brassard's 1984 protocol turns key distribution into a physics problem. Here is the mechanism, the eavesdropper maths, and the four things BB84…
Inside ITU-T Y.3800: The Reference Model for QKD Networks
ITU-T Y.3800 turned quantum key distribution from a point-to-point demonstration into a network architecture. What its four layers define, and what they leave open.
Quantum Random Number Generation: Where QRNG Fits in a Key Management Stack
QRNG turns quantum indeterminacy into bits. Here is what that fixes in a key management stack, what it leaves untouched, and how to evaluate…