For Post-Quantum, Don’t Dismiss Isogenies … One of the Smallest Key Sizes for PQC

We need to migrate way from ECDH, as it is based on elliptic curves and which can be cracked by quantum computers. And so NIST is now assessing a range of finalists: Kyber, SABER, NTRU and McEliece. The first three are lattice based, and one of these is likely to win the competition. When we look at key sizes we see that McEliece has a relatively…