PUBKEY
IMPLEMENT_PEM_provided_write(PUBKEY, EVP_PKEY, pkey, PEM_STRING_PUBLIC, PUBKEY)
DECLARE_PEM_rw_ex(PUBKEY, EVP_PKEY)
DECLARE_ASN1_ENCODE_FUNCTIONS_only(EVP_PKEY, PUBKEY)
[PUBKEY] = {
if (c[PUBKEY].value != NULL)
r->pubkey = c[PUBKEY].value;
if (config_string(PUBKEY, &pubkey) != 0) {