evp_skeymgmt_import
ctx->keydata = evp_skeymgmt_import(ctx->skeymgmt, ctx->selection, params);
skey->keydata = evp_skeymgmt_import(skey->skeymgmt, selection, params);
void *evp_skeymgmt_import(const EVP_SKEYMGMT *skeymgmt, int selection, const OSSL_PARAM params[]);