Yeah that's Rainbow, one of the NIST round 3 finalist signature schemes.
Not too surprised it was broken, as it uses extension fields which I
have never trusted, they have too much (unused) structure.
Peter Fairbrother
On 26/03/2022 08:21, jim bell wrote:
https://english.elpais.com/science-tech/2022-03-24/using-just-a-laptop-an-encryption-code-designed-to-prevent-a-quantum-computer-attack-was-cracked-in-just-53-hours.html
<https://english.elpais.com/science-tech/2022-03-24/using-just-a-laptop-an-encryption-code-designed-to-prevent-a-quantum-computer-attack-was-cracked-in-just-53-hours.html>
Security in an age when quantum computing is about to explode is one of
the major concerns for all of the protection systems the world over.
(According to Jian-Wei Pan, the major expert in this scientific field in
China, “the next quantum breakthrough will happen in five years.
<https://english.elpais.com/science-tech/2022-02-03/jian-wei-pan-the-next-quantum-breakthrough-will-happen-in-five-years.html>”)
The National Institute of Standards and Technology (NIST) wanted to put
seven encryption formulas to the test in order to determine their
vulnerability to the new processing systems. Ward Beullens, from the IBM
research center in Zurich, Switzerland, managed to crack an encrypted
code in just 53 hours and with a simple laptop.
