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Musings on Workflow Terminated and Exception Handling

When a workflow runs an activity and that activity throws some kind of unhandled exception you would notice that your workflow get terminated. I have see in many articles that explain how the termination happens. Now this is fine only for a rare set of Read More...
Posted Wednesday, May 02, 2007 10:29 AM by Sajay | 3 Comments
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Durable Tokens Across Services - Share your tokens

There seems to be quite a number of time when you want to perform your authentication once and then you just go ahead the want to just call a service without performing the authentication again. What are some advantages of this ? 1. You get to manage Read More...
Posted Friday, April 20, 2007 12:32 PM by Sajay | 0 Comments
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Attachment(s): Durable Token Modified POC.zip

ServiceAuthorizationManager and PrincipalPermission

You may face a problem when trying to check for Principal permission and demand in the CheckAccessCore of the SerivceAuthorizationManager and you might see a security exception. This is primarily because the threads principal is not set when this demand Read More...
Posted Friday, December 22, 2006 8:33 AM by Sajay | 1 Comments
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WSE Client - WCF service Interop

I wanted to put up this sample using the Feb CTP. Basically it uses WSE 3.0 and WCF to demostrate both AnonymousCertificate configuration and MutualCertificate configuration using the service custom binding Configuration and the WSE policy file. The point Read More...
Posted Wednesday, May 31, 2006 2:59 PM by Sajay | 0 Comments
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Attachment(s): WSE MutualCertificate.zip

Security at both Message and Transport Level

When using webservices we usually want the messages encrypted and also use SSL. This configuration as of now is not supported out of the box. We could use either tranport or message or a type called TransportWithMessageCredentials. The 3rd type does not Read More...
Posted Wednesday, May 24, 2006 11:49 AM by Sajay | 0 Comments
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Getting the X509Certificate Serial Number out of the ClaimSet

The ClaimSet is quite interesting and extracting the Serial number from the certificate was something that wasn't that straight forward using FindClaims which takes the ClaimType Enumerator. For this you can cast the claim set into a X509CertificateClaimSet Read More...
Posted Friday, March 31, 2006 3:27 PM by Sajay | 0 Comments
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Script for setting up Certificates for WCF

I thought this script might be quite useful to set up certificates for testing with services hosted in IIS. This uses 3 tools present in the SDK folder. 1. makecert 2. certmgr 3. FindPrivateKey You can find these in the WCF samples. Note: Make sure you Read More...
Posted Thursday, March 30, 2006 7:28 PM by Sajay | 1 Comments
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