RePost: Evidence problem

[Tod Johnson]

Hello again,

Does it mean that nobody knows the answer? :(

-----------------------------------
not so long I've found really strange bug in the .NET. It seems that
Evidence that I've got from the current executing Assembly is somehow
expired (it happens suddenly after about month) and Xslt Transformation
stop working at all for the whole AppDomain until I restart it. Am I
using "this.GetType().Assembly.Evidence" incorrectly?

Here is the code snippet:

XslTransform xt = new XslTransform();
try
{
xt.Load(new XmlTextReader(stream), null,
this.GetType().Assembly.Evidence);
}
catch(XsltCompileException ex)
{
throw new Exception(Utils.ExceptionsToString(ex), ex);
}

And this is the stacktrace:

Exception: System.Security.Cryptography.CryptographicExceptio n
Message: The parameter is incorrect.
Source: mscorlib
at System.Security.Policy.PolicyLevel.GenericResolve( Evidence
evidence, Boolean& allConst)
at System.Security.Policy.PolicyLevel.Resolve(Evidenc e evidence,
Int32 count, Char[] serializedEvidence)
at System.Security.PolicyManager.Resolve(Evidence evidence,
PermissionSet request)
at System.Security.SecurityManager.ResolvePolicy(Evid ence evidence)
at System.Xml.Xsl.Compiler.Compile(NavigatorInput input, XmlResolver
xmlResolver, Evidence evidence)
at System.Xml.Xsl.XslTransform.Compile(XPathNavigator stylesheet,
XmlResolver resolver, Evidence evidence)
at System.Xml.Xsl.XslTransform.Load(XPathNavigator stylesheet,
XmlResolver resolver, Evidence evidence)
at System.Xml.Xsl.XslTransform.Load(XmlReader stylesheet,
XmlResolver resolver, Evidence evidence)

Thanks in advance,
Tod