/// <summary>
/// Run the EDHOC protocol
/// Command line: EDHOC <New key name> <validate key> URL
/// </summary>
/// <param name="cmds"></param>
static void RunEdhoc(string[] cmds)
{
if (cmds.Length != 4)
{
Console.WriteLine("wrong number of arguments");
return;
}
EdhocInitiator send = new EdhocInitiator(_EdhocValidateKeys[cmds[2]]);
byte[] data = send.CreateMessage1();
Request req = NewRequest("POST", new Uri(cmds[3]));
req.Payload = data;
req.Send();
Response response = req.WaitForResponse();
send.ParseMessage2(response.Payload, _EdhocServerKeys);
data = send.CreateMessage3();
req = NewRequest("POST", new Uri(cmds[3]));
req.Payload = data;
req.Send();
response = req.WaitForResponse();
_OscopKeys[cmds[1]] = send.CreateSecurityContext();
}
public void CreateMessage1_1()
{
EdhocInitiator e = new EdhocInitiator(keyOctet);
byte[] val = e.CreateMessage1();
Assert.That(val, !Is.EqualTo(null));
CBORObject obj = CBORObject.DecodeFromBytes(val);
Assert.That(obj.Type, Is.EqualTo(CBORType.Array));
Assert.That(obj.Count, Is.EqualTo(7));
}
public void TestSharedSecret()
{
Request req;
Uri uriHello = new Uri("coap://localhost:" + _serverPort + "/hello");
Uri uri = new Uri("coap://localhost:" + _serverPort + "/" + "edhoc");
CoapClient clientHello = new CoapClient(uriHello);
CoapClient client = new CoapClient(uri);
// Try and get hello -- should fail because no security setup.
CoAP.Response resp = clientHello.Get();
Assert.AreEqual(CoAP.StatusCode.Unauthorized, resp.StatusCode);
// Create and send message #1 for PSK
EDHOC.EdhocInitiator init = new EdhocInitiator(psk);
byte[] msg = init.CreateMessage1();
req = new Request(Method.POST);
req.Payload = msg;
resp = client.Send(req);
Assert.AreEqual(CoAP.StatusCode.Changed, resp.StatusCode);
// Process response message
KeySet ks = new KeySet();
ks.AddKey(serverSignKey);
init.ParseMessage2(resp.Payload, ks);
// Post new message
msg = init.CreateMessage3();
req = new Request(Method.POST);
req.Payload = msg;
resp = client.Send(req);
Assert.AreEqual(StatusCode.Changed, resp.StatusCode);
// Setup my security context.
OSCOAP.SecurityContext ctx = init.CreateSecurityContext();
req = new Request(Method.GET);
req.URI = uriHello;
req.OscoapContext = ctx;
resp = clientHello.Send(req);
Assert.AreEqual(StatusCode.Content, resp.StatusCode);
}
