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Tuesday, April 01, 2008 1:00 PM

Patterns and Practices: WCF Security Guidance available online

The Microsoft Patterns and Practices team has created a guide for WCF security. http://blogs.msdn.com/jmeier/archive/2008/03/27/patterns-and-practices-wcf-security-guidance-now-available.aspx You can find more information at the root site http://www.codeplex.com/WCFSecurity
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Monday, August 27, 2007 4:04 PM

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
Posted by govindr | 1 Comments
Tuesday, August 21, 2007 2:47 PM

Handling Mismatched Trust Versions on the Client

Federation Clients might have scenarios where it is talking to a Service and STS that don't have the same trust version. The Service WSDL can contain a RequestSecurityTokenTemplate with Trust elements that are in different version than the STS. In these
Posted by govindr | 0 Comments
Monday, July 16, 2007 11:15 PM

Security element and "actor" attribute.

SOAP 1.1 defines the attribute "actor" that can be on any SOAP header which will indicate who the ultimate processor of the header is going to be. It also defines a standard URI value for this actor attribute that is " http://schemas.xmlsoap.org/soap/actor/next
Posted by govindr | 1 Comments
Thursday, May 03, 2007 10:57 AM

Updated Re-Serialize SAML token

There has been a lot of interest around this and hence I have attached some code listing to this post. Check it out!
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Tuesday, March 06, 2007 3:33 PM

Using Visual Studio Intellisense to Edit WCF Configuration files.

If you are using Visual Studio 2005 below is how you can enable intellisense to edit your WCF config files. Copy the Attached WCF Configuration schema file to your VS installation folder at %Program Files%\Visual Studio 8\Xml\Schemas. You will find DotNetConfig.xsd
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Attachment(s): WCFConfig.xsd
Tuesday, February 20, 2007 8:26 PM

Daylight savings changes and WCF Security Processing

I had a question today from a customer who was concerned that his WCF application might start to behave erratically due to the new Daylight savings schedule. Then I realized that there has been quite some noise around this area and people are predicting
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Tuesday, February 06, 2007 10:10 PM

Asymmetric tokens and Mixed-Mode Security

When you are using a X.509 Certificate as the client authentication token in Mixed-Mode Security - apart from signing the Timestamp WCF will sign the 'To' header as well. This is to prevent a client spoofing attack by a rougue service. Consider the situation
Posted by govindr | 0 Comments
Tuesday, February 06, 2007 9:41 PM

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
Posted by govindr | 4 Comments
Monday, January 22, 2007 1:42 PM

Security Header Layout

There are four different security header layout that can be specified in WCF. The values are defined in WS-SecurityPolicy. They are, Strict - All security tokens are defined in the security header before its first use. The primary signature should be
Posted by govindr | 0 Comments
Tuesday, January 09, 2007 2:43 PM

WCF Support in Compact Framework

In a nutshell, .NET Compact Framework 3.5 supported features for WCF include: messaging-layer communication, WS-security, and http and mail transports. All of these a subsets of what the desktop supports, with the exception of the mail transport, which
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Tuesday, January 09, 2007 12:43 PM

Configuring HTTP in Windows Vista

Hosting a WCF service on a HTTP endpoint on Windows Vista has some issues given that you are not running with Administrator privileges. Following blogs discusses how to get around this issue, http://blogs.msdn.com/drnick/archive/2006/10/16/configuring-http-for-windows-vista.aspx
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Wednesday, November 22, 2006 3:06 AM

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
Posted by govindr | 1 Comments
Tuesday, November 07, 2006 3:59 PM

.Net Framework 3.0 is Live!!

Get the latest version of .Net Framework 3.0 at http://www.microsoft.com/downloads/details.aspx?FamilyId=10CC340B-F857-4A14-83F5-25634C3BF043&displaylang=en
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Wednesday, November 01, 2006 11:40 PM

Debugging WCF - Traces and Message Logs

There has been enough posts on this topic. But this topic cannot be over emphasized. The best way to debug any WCF issue is to get a complete Message log and trace. We write tons of information to the trace that there is very little (if any) issues that
Posted by govindr | 1 Comments
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