Top 10 PFS Key Exchange Params:
X25519, 253 bits 568,824
ECDH, P-256, 256 bits 65,225
ECDH, P-384, 384 bits 17,506
ECDH, P-521, 521 bits 6,553
DH, 1024 bits 425
DH, 2048 bits 314
X448, 448 bits 24
DH, 4096 bits 21
DH, 3072 bits 1