Post-Quantum Cryptography Advanced
GeMSS: Multivariate Signatures with HFEv-
GeMSS is a post-quantum signature scheme whose signatures have only a few hundred bits and whose public key is a system of quadratic equations. Learn how a hidden polynomial over GF(2^n) becomes a signature, how the signer finds roots, and why NIST dropped the scheme after a key-recovery attack.
41 min read