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Reliable Messaging and SecurityToken validation

One of the things that have come up many times is how the service could stop a client from retrying a request for a valid security validation error while Reliable Messaging is enabled. If you are not familiar with the situation the essence of the problem

WCF Security Modes

WCF supports three types of Security. They are, Transport Security Mixed-Mode Security Message Security Let's discuss the various Security Modes below. Transport Security is applied at the transport byte stream below the message layer. The message does

Federation and Bearer Tokens

The latest WS-Trust spec (yet to be ratified by OASIS) introduces a concept called Bearer Tokens. This basically is a keyless token that a client requests from an STS (Security Token Service). The only purpose this token serves is to provide more information

Federation

As you are moving to Web Services world one of the buzz words that you will hear time and again is "Federation". This is simply a security scenario that involves 3 parties to secure a Message. The 3 parties in the scenario are, Client Security Token Service

Supporting Tokens

Web Services Message Security has the concept of Primary and Supporting Tokens. The Primary token is the main token that provides security to the message. This signs the message body and other headers as required and serves as the main identity token
 
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