1$ openssl genpkey -genparam -algorithm EC -pkeyopt ec_paramgen_curve:secp384r1 -pkeyopt ec_param_enc:named_curve -text
2-----BEGIN EC PARAMETERS-----
3BgUrgQQAIg==
4-----END EC PARAMETERS-----
5ECDSA-Parameters: (384 bit)
6ASN1 OID: secp384r1
7NIST CURVE: P-384
8