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SignedXml ds prefix

Im creating project in c# .net2.0, to sign and verify documens us
xmldsig format.
My problem is how to use prefix "ds" instead of:
xmlns="http://www.w3.org/2000/09/xmldsig#" in SignedInfo,
SignatureValue and KeyInfo node and their child nodes?
I add xmlns:ds="http://www.w3.org/2000/09/xmldsig#" attribute to
xmlDocument. After call ComputeSignatur e method, I add to signature
xmlElement (XmlElement xmlDigitalSigna ture = signedXml.GetXm l()) frefix

ds (xmlDigitalSign ature.Prefix = "ds") - this change
xmlns="http://www.w3.org/2000/09/xmldsig#" of this element (signature)
to ds prefix, but I cant do this for other signedXml (signature) child
nodes and still have valid signatures.
I post this message on cryptography news to, but without any answer ;(
Maybe this is imposible with xmldsig internal engine in c# and .Net2.0?
Any sugestion will be very helpful!

Dec 22 '06 #1
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