Azure Service Bus - Invalid authorization token signature error for queue creation

Question

I have to send message to Queue. I have specified connection string in app.config. I already set SharedAccessKeyName and SharedAccessKey on azure and set in connection string.

I am using below console code to send message.

string connString =  ConfigurationSettings.AppSettings["Microsoft.ServiceBus.ConnectionString"];
NamespaceManager namespaceManager = NamespaceManager.CreateFromConnectionString(connString);


            QueueClient client = QueueClient.CreateFromConnectionString(connString, "testqueue");
            BrokeredMessage message = new BrokeredMessage("test");
            client.Send(message);
            Console.ReadLine();

I am getting error:

40103: Invalid authorization token signature ...

How to resolve this issue?

Answer 1

How to resolve this issue?

According to your mentioned excetpion Invalid authorization token signature, I assume the error occured in the connection string.

Endpoint=sb://{servicebusName}.servicebus.windows.net/;SharedAccessKeyName={policyName};SharedAccessKey=xxxx";

We could get it from the azure portal, more details you could refer to the screenshot. We also could refer to Get started with Service Bus queues.

Note: If you use added SAS Policy, please make sure it has access to send message.

Answer 2

When generating the SAS token, for example using C#, pass the following:

• resourceUri should be without the trailing '/messages'
• key should be the SharedAccessKey, instead of the full connection string.