EVP_PKEY_CTRL_DH_PARAMGEN_TYPE
case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, "dh_paramgen_type", NULL,
EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, "dh_paramgen_type", NULL,
EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL);