Mike Hamburg
American cryptographer behind the Ed448-Goldilocks curve and Decaf, the trick that hides the awkward cofactor of Edwards curves.
Hamburg did his PhD at Stanford with Dan Boneh and then joined Cryptography Research, the firm Paul Kocher founded and Rambus bought. In 2015 he presented Ed448-Goldilocks, a 448-bit curve meant as the bigger sibling of Curve25519. It was standardised as X448 and Ed448 in RFCs 7748 and 8032.
Decaf arrived the same year. Edwards curves are fast but carry a cofactor that has produced subtle bugs in protocols that forgot about it, Monero among them. Decaf builds a clean prime-order group on top of the curve, and its successor Ristretto, developed by Hamburg with Henry de Valence and others, does the same for the Ed25519 curve. He also wrote STROBE, a protocol framework built from a single permutation.