Top 10 PFS Key Exchange Params:
X25519, 253 bits 189,706
ECDH, P-256, 256 bits 28,474
ECDH, P-384, 384 bits 4,428
ECDH, P-521, 521 bits 2,191
DH, 1024 bits 219
DH, 2048 bits 155
DH, 4096 bits 12
X448, 448 bits 5