I'm a 2 week newbie to VS.NET, .NET, and C# and need help on this time
critical project.

TIA


I'm using WSE 1.0sp1/.NET 1.0 and signing and verifying xml documents
not SOAP.  So I'm using WSE's SignedXml and getting this exception.



My guess ???:  machine.config doesn't have the transform
implementation class found for all the namespaces in the <signature>.
BTW, I'm on XPsp1 and our IT department creates the XP image.  There
might be something they strip out of XP??   I did check what CSC's are
install and the MS_ENANCED_PROV seem to be installed.  But I wouldn't
know if any are missing.



Although I can sign a doc, I can't validate??



I started guessing at the transform namespace to impl classes in my
machine.config (end of email).



Any thoughts??



Thanks Curt





Exception Details: System.Security.Cryptography.CryptographicException:
Unknown tranform has been encountered.

Source Error:



Line 193:

Line 194:                          XmlNodeList nodeList =
signedDoc.GetElementsByTagName("Signature",
SignedXml.XmlDsigNamespaceUrl);

Line 195:                        
sx.LoadXml((XmlElement)nodeList[0]);

Line 196:

Line 197:                          bool isValid =
sx.CheckSignature(key);


Source File: c:\inetpub\wwwroot\browserpost\samlutils.cs    Line: 195

Stack Trace:



[CryptographicException: Unknown tranform has been encountered.]

  Microsoft.Web.Services.Security.Reference.LoadXml(XmlElement value)

  Microsoft.Web.Services.Security.SignedInfo.LoadXml(XmlElement
value)

  Microsoft.Web.Services.Security.SignedXmlSignature.LoadXml(XmlElement
value)

  Microsoft.Web.Services.Security.SignedXml.LoadXml(XmlElement value)

  BrowserPost.SAMLUtils.ValidateDocument(XmlDocument signedDoc,
String keyName) in c:\inetpub\wwwroot\browserpost\samlutils.cs:195

  BrowserPost.TestScenarios.Page_Load(Object sender, EventArgs e) in
c:\inetpub\wwwroot\browserpost\testscenarios.aspx.cs:84

  System.Web.UI.Control.OnLoad(EventArgs e) +67

  System.Web.UI.Control.LoadRecursive() +35

  System.Web.UI.Page.ProcessRequestMain() +720



-- I just started guesing for the crypto packages...

<mscorlib>

   <cryptographySettings>

     <cryptoNameMapping>

       <cryptoClasses>

         <cryptoClass
exc14n="Microsoft.Web.Services.Security.XmlDsigExcC14NTransform,
Microsoft.Web.Services.Security" />

         <cryptoClass
c14n="System.Security.Cryptography.Xml.XmlDsigC14NTransform,
System.Security.Cryptography.Xml" />

         <cryptoClass
exc14n.comments="Microsoft.Web.Services.Security.XmlDsigExcC14NWithCommentsTransform,
Microsoft.Web.Services.Security" />

         <cryptoClass
envsigTran="System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform,System.Security.Cryptography.Xml"
/>

         <cryptoClass
digmeth="System.Security.Cryptography.SHA1CryptoServiceProvider,System.Security.Cryptography"
/>

         <!--

         <cryptoClass sigTran="not done
System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform,System.Security.Cryptography.Xml"
/>

         -->

       </cryptoClasses>

       <nameEntry name="http://www.w3.org/2001/10/xml-exc-c14n#"
class="exc14n" />

       <nameEntry name="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
class="c14n" />

       <nameEntry name="http://www.w3.org/2001/10/xml-exc-c14n#WithComments"
class="exc14n.comments" />

       <nameEntry name="http://www.w3.org/2000/09/xmldsig#enveloped-signature"
class="envsigTran" />

       <nameEntry name="http://www.w3.org/2000/09/xmldsig#sha1"
class="digmeth" />

       <!--

       <nameEntry name="http://www.w3.org/2000/09/xmldsig#rsa-sha1"
class="sigTran" />

       -->

     </cryptoNameMapping>

   </cryptographySettings>

 </mscorlib