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Asked: 2026-05-27T06:31:22+00:00

I’d like to sign a Soap request (.NET 3.5, C#) with a certificate stored

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I’d like to sign a Soap request (.NET 3.5, C#) with a certificate stored in the computer (reading of certificate is ok).

I don’t want the request to be encrypted (that’s what I get when I change Security.Mode and Security.Message properties on WSHttpBinding). I am looking for a signed Soap header.

After reading tons of articles on MSDN, blog, StackOverflow… I came up with this approach: using IClientMessageInspector and method BeforeSendRequest. I can set a breakpoint in it and see my request, but how to modify its XML content?

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1 Answer

  1. Editorial Team

    Modifying the message is possible – for sample code and explanations see

    Basically you copy the Message to an XML Doc as a buffered copy, modify the XML, then create a new Message from that modified XML and assign the new Message to the ref Message param…

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