Hi Tery,
From your description, you're going to build a .net application which will
interact with a 3rd party service (exposes a http post channel to let you
submit request and get response data), correct?
I have had a brief overview on the document you mentioned, my current
understanding is that you'll get a certificate with the public key from
that 3rd partry service hoster and you'll need to use it encrypt or verify
the signature of the service side. For such issue, you can use the .NET
framework cryptography component to perform data encryption or
signing(decryptiong or signature verification) and for the publici key, you
can retrive it from windows certificate store through the .NET
X509Cerificate specific classes(provided in .NET 2.0). Here are some MSDN
reference on this(encypting & certificate management):
#Support Certificates In Your Applications With The .NET Framework 2.0
http://msdn.microsoft.com/msdnmag/issues/07/03/NETSecurity/#S4
#Encrypting Data
http://msdn2.microsoft.com/en-us/library/as0w18af(VS.80).aspx
#Generating Signatures
http://msdn2.microsoft.com/en-us/library/6yxzeb7e.aspx
In addition, I've ever replied in some former threads in the newsgroup
about using X509 certificate (the associated key in it) to perform crypto
tasks. You can also refer to them for further information:
#Encrypt string using SHA1withDSA and X509 certificate Options
http://groups.google.com/group/microsoft.public.dotnet.framework.aspnet.secu
rity/browse_thread/thread/1b16028ac9e99ab5/dffce8c815782d4a
#FtpWebRequest with X.509 Authentication Options
http://groups.google.com/group/microsoft.public.dotnet.framework/browse_thre
ad/thread/29cf1bbf51eafd43/426e2c94fd7b6f59
If you have any more specific questions or anything unclear on this, please
feel free to let me know.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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