public void When_ProvidedWithAnError_ParseShouldThrowAnException(string response)
{
Should.Throw <MessageParseException>(() =>
{
var _ = ServerFirstMessage.Parse(response);
});
}
public void Authenticate()
{
var clientFirstMessage = new ClientFirstMessage(_username, _nonce);
Send(clientFirstMessage.Message);
var serverFirstMessage = ServerFirstMessage.ParseResponse(Receive());
var hashedPassword = Hash.ComputeHash(Encoding.UTF8.GetBytes(_password), serverFirstMessage.Salt.Value,
serverFirstMessage.Iterations.Value);
var clientKey = Hash.ComputeHash(Encoding.UTF8.GetBytes("Client Key"), hashedPassword);
var serverKey = Hash.ComputeHash(Encoding.UTF8.GetBytes("Server Key"), hashedPassword);
var storedKey = Hash.ComputeHash(clientKey);
var clientFinalMessage = new ClientFinalMessage(clientFirstMessage, serverFirstMessage);
var authMessage =
$"{clientFirstMessage.BareMessage},{serverFirstMessage},{clientFinalMessage.MessageWithoutProof}";
var clientSignature = Hash.ComputeHash(Encoding.UTF8.GetBytes(authMessage), storedKey);
var serverSignature = Hash.ComputeHash(Encoding.UTF8.GetBytes(authMessage), serverKey);
var clientProof = clientKey.ExclusiveOr(clientSignature);
clientFinalMessage.SetProof(clientProof);
Send(clientFinalMessage.Message);
var serverFinalMessage = ServerFinalMessage.ParseResponse(Receive());
if (!serverFinalMessage.ServerSignature.Equals(serverSignature))
{
throw new InvalidOperationException();
}
}
public void When_CreatedWithStringConstructor_ThePropertiesShouldBeValid()
{
var message = new ServerFirstMessage(4096, "nonce", "salt");
message.Iterations?.Value.ShouldBe(4096);
message.Nonce?.Value.ShouldBe("nonce");
message.Salt?.ToString().ShouldBe("s = salt");
}
public void When_ProvidedWithAMessage_ParseShouldSetTheProperties(string message)
{
var response = ServerFirstMessage.Parse(message);
response.Iterations?.Value.ShouldBe(4096);
response.Nonce?.Value.ShouldBe("fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j");
response.Salt?.ToString().ShouldBe("s = QSXCR+Q6sek8bf92");
}
public void When_Created_PropertiesShouldBeValid()
{
var clientFirst = new ClientFirstMessage("user", "nonce");
var serverFirst = new ServerFirstMessage(4096, "nonce", "salt");
var message = new ClientFinalMessage(clientFirst, serverFirst);
message.Channel.Value.ShouldBe("biws");
message.Nonce.Value.ShouldBe("nonce");
message.Proof.ShouldBeNull();
message.Message.ShouldBe("c=biws,r=nonce,");
message.MessageWithoutProof.ShouldBe("c=biws,r=nonce");
}
public void When_ProofIsSetAsString_PropertiesShouldBeValid()
{
var clientFirst = new ClientFirstMessage("user", "nonce");
var serverFirst = new ServerFirstMessage(4096, "nonce", "salt");
var message = new ClientFinalMessage(clientFirst, serverFirst);
message.SetProof("bf45fcbf7073d93d022466c94321745fe1c8e13b");
message.Channel.Value.ShouldBe("biws");
message.Nonce.Value.ShouldBe("nonce");
message.Proof?.ToString().ShouldBe("p=bf45fcbf7073d93d022466c94321745fe1c8e13b");
message.Message.ShouldBe("c=biws,r=nonce,p=bf45fcbf7073d93d022466c94321745fe1c8e13b");
message.MessageWithoutProof.ShouldBe("c=biws,r=nonce");
}
private Response ProcessChallenge(Challenge tag)
{
_serverResponse = _encoding.GetString(tag.Bytes);
_serverFirstMessage = ServerFirstMessage.ParseResponse(_serverResponse);
_clientFinalMessage = new ClientFinalMessage(_clientFirstMessage, _serverFirstMessage);
CalculateProofs();
var message = Client.Registry.GetTag <Response>(Response.XmlName);
message.Bytes = _encoding.GetBytes(_clientFinalMessage.Message);
return(message);
}
private Tag ProcessChallenge(Tag tag)
{
_serverResponse = _encoding.GetString(tag.Bytes);
_serverFirstMessage = ServerFirstMessage.ParseResponse(_serverResponse);
Logger.Log(LogLevel.Debug, $"Server NONCE: {_serverFirstMessage.Nonce}");
_clientFinalMessage = new ClientFinalMessage(_clientFirstMessage, _serverFirstMessage);
CalculateProofs();
Logger.Log(LogLevel.Debug, $"Client final after proof: {_clientFinalMessage.Message}");
var message = Client.Registry.GetTag <Response>(Response.XmlName);
message.Bytes = _encoding.GetBytes(_clientFinalMessage.Message);
return(message);
}
public ClientFinalMessage(ClientFirstMessage clientFirstMessage, ServerFirstMessage serverFirstMessage)
{
Channel = new ChannelAttribute(clientFirstMessage.Gs2Header);
Nonce = new NonceAttribute(serverFirstMessage.Nonce.Value);
}