Example #1
0
func main() {
	// Load server key.
	serverKey, err := libtrust.LoadKeyFile(privateKeyFilename)
	if err != nil {
		log.Fatal(err)
	}

	// Generate server certificate.
	selfSignedServerCert, err := libtrust.GenerateSelfSignedServerCert(
		serverKey, []string{"localhost"}, []net.IP{net.ParseIP("127.0.0.1")},
	)
	if err != nil {
		log.Fatal(err)
	}

	// Load authorized client keys.
	authorizedClients, err := libtrust.LoadKeySetFile(authorizedClientsFilename)
	if err != nil {
		log.Fatal(err)
	}

	// Create CA pool using trusted client keys.
	caPool, err := libtrust.GenerateCACertPool(serverKey, authorizedClients)
	if err != nil {
		log.Fatal(err)
	}

	// Create TLS config, requiring client certificates.
	tlsConfig := &tls.Config{
		Certificates: []tls.Certificate{
			tls.Certificate{
				Certificate: [][]byte{selfSignedServerCert.Raw},
				PrivateKey:  serverKey.CryptoPrivateKey(),
				Leaf:        selfSignedServerCert,
			},
		},
		ClientAuth: tls.RequireAndVerifyClientCert,
		ClientCAs:  caPool,
	}

	// Create HTTP server with simple request handler.
	server := &http.Server{
		Addr:    serverAddress,
		Handler: http.HandlerFunc(requestHandler),
	}

	// Listen and server HTTPS using the libtrust TLS config.
	listener, err := net.Listen("tcp", server.Addr)
	if err != nil {
		log.Fatal(err)
	}
	tlsListener := tls.NewListener(listener, tlsConfig)
	server.Serve(tlsListener)
}
Example #2
0
func main() {
	key, err := libtrust.LoadKeyFile(clientPrivateKeyFilename)
	if err != nil {
		log.Fatal(err)
	}

	keyPEMBlock, err := key.PEMBlock()
	if err != nil {
		log.Fatal(err)
	}

	encodedPrivKey := pem.EncodeToMemory(keyPEMBlock)
	fmt.Printf("Client Key:\n\n%s\n", string(encodedPrivKey))

	cert, err := libtrust.GenerateSelfSignedClientCert(key)
	if err != nil {
		log.Fatal(err)
	}

	encodedCert := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw})
	fmt.Printf("Client Cert:\n\n%s\n", string(encodedCert))

	trustedServerKeys, err := libtrust.LoadKeySetFile(trustedHostsFilename)
	if err != nil {
		log.Fatal(err)
	}

	hostname, _, err := net.SplitHostPort(serverAddress)
	if err != nil {
		log.Fatal(err)
	}

	trustedServerKeys, err = libtrust.FilterByHosts(trustedServerKeys, hostname, false)
	if err != nil {
		log.Fatal(err)
	}

	caCert, err := libtrust.GenerateCACert(key, trustedServerKeys[0])
	if err != nil {
		log.Fatal(err)
	}

	encodedCert = pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: caCert.Raw})
	fmt.Printf("CA Cert:\n\n%s\n", string(encodedCert))
}
Example #3
0
func main() {
	// Load Client Key.
	clientKey, err := libtrust.LoadKeyFile(privateKeyFilename)
	if err != nil {
		log.Fatal(err)
	}

	// Generate Client Certificate.
	selfSignedClientCert, err := libtrust.GenerateSelfSignedClientCert(clientKey)
	if err != nil {
		log.Fatal(err)
	}

	// Load trusted host keys.
	hostKeys, err := libtrust.LoadKeySetFile(trustedHostsFilename)
	if err != nil {
		log.Fatal(err)
	}

	// Ensure the host we want to connect to is trusted!
	host, _, err := net.SplitHostPort(serverAddress)
	if err != nil {
		log.Fatal(err)
	}
	serverKeys, err := libtrust.FilterByHosts(hostKeys, host, false)
	if err != nil {
		log.Fatalf("%q is not a known and trusted host", host)
	}

	// Generate a CA pool with the trusted host's key.
	caPool, err := libtrust.GenerateCACertPool(clientKey, serverKeys)
	if err != nil {
		log.Fatal(err)
	}

	// Create HTTP Client.
	client := &http.Client{
		Transport: &http.Transport{
			TLSClientConfig: &tls.Config{
				Certificates: []tls.Certificate{
					tls.Certificate{
						Certificate: [][]byte{selfSignedClientCert.Raw},
						PrivateKey:  clientKey.CryptoPrivateKey(),
						Leaf:        selfSignedClientCert,
					},
				},
				RootCAs: caPool,
			},
		},
	}

	var makeRequest = func(url string) {
		resp, err := client.Get(url)
		if err != nil {
			log.Fatal(err)
		}
		defer resp.Body.Close()

		body, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			log.Fatal(err)
		}

		log.Println(resp.Status)
		log.Println(string(body))
	}

	// Make the request to the trusted server!
	makeRequest(fmt.Sprintf("https://%s", serverAddress))
}