[zmanian]

Cryptographers are generally not interested in using quantum physics to achieve secure communications

Cryptographers interested in encryption schemes that use mathematical structures that are not amenable to any known quantum algorithm. Lattices, Ring Learning With Error

Cryptographers are also interested in how Quantum Computers will scale to large sizes. It will be important to understand what the largest quantum computers that can practically be built are.

[q4h555qh5]

Quantum cryptography is still applied in some places. Switzerland is using quantum crypto below lake Geneva using optic fiber. Recently, China announced a quantum crypto satellite program.

[zmanian]

This has never made any sense to me. What is the threat model? In almost any case where you can use QKD, it would be cheaper to send a courier with locked/handcuffed brief case.

[DanBC]

Switzerland used it for elections.

https://www.newscientist.com/article/dn12786-quantum-cryptog...

[hulahoof]

Time is a cost