OSSL_STORE_INFO_get0_PUBKEY
EVP_PKEY_print_public(out, OSSL_STORE_INFO_get0_PUBKEY(info),
PEM_write_bio_PUBKEY(out, OSSL_STORE_INFO_get0_PUBKEY(info));
EVP_PKEY *OSSL_STORE_INFO_get0_PUBKEY(const OSSL_STORE_INFO *info);