from_pem implemented for Certificate, but TlsConnectorBuilder.identity still required Pkcs12 about rust-native-tls HOT 4 CLOSED

        let mut ssl =
            openssl::ssl::SslConnectorBuilder::new(openssl::ssl::SslMethod::tls()).unwrap();
        // Server authentication
        ssl.set_ca_file(ca_certificate.clone()).unwrap();
        // Client authentication
        ssl.set_private_key_file(client_key.clone(), openssl::x509::X509_FILETYPE_PEM)
            .unwrap();
        ssl.set_certificate_chain_file(client_certificate.clone())
            .unwrap();
        ssl.check_private_key().unwrap();
        let builder: native_tls::TlsConnectorBuilder =
            native_tls::backend::openssl::TlsConnectorBuilderExt::from_openssl(ssl);