Fields

secp256r1 = 23,
secp384r1 = 24,
secp521r1 = 25,
x25519 = 29,
x448 = 30,
ffdhe2048 = 256,
ffdhe3072 = 257,
ffdhe4096 = 258,
ffdhe6144 = 259,
ffdhe8192 = 260,
x25519_kyber512d00 = 65072,
x25519_kyber768d00 = 25497,