private bool IsSafeTransform(string transformAlgorithm)
{
// All canonicalization algorithms are valid transform algorithms.
foreach (string safeAlgorithm in SafeCanonicalizationMethods)
{
if (string.Equals(safeAlgorithm, transformAlgorithm, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
}
foreach (string safeAlgorithm in DefaultSafeTransformMethods)
{
if (string.Equals(safeAlgorithm, transformAlgorithm, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
}
SignedXmlDebugLog.LogUnsafeTransformMethod(
this,
transformAlgorithm,
SafeCanonicalizationMethods,
DefaultSafeTransformMethods);
return(false);
}
private static bool IsSafeTransform(NS transformAlgorithm, SignedXml signedXml)
{
foreach (string safeAlgorithm in signedXml.SafeCanonicalizationMethods)
{
if (string.Equals(safeAlgorithm, XmlNameSpace.Url[transformAlgorithm], StringComparison.OrdinalIgnoreCase))
{
return(true);
}
}
foreach (string safeAlgorithm in DefaultSafeTransformMethods(SignedXml.s_defaultSafeTransformMethods))
{
if (string.Equals(safeAlgorithm, XmlNameSpace.Url[transformAlgorithm], StringComparison.OrdinalIgnoreCase))
{
return(true);
}
}
SignedXmlDebugLog.LogUnsafeTransformMethod(
signedXml,
XmlNameSpace.Url[transformAlgorithm],
signedXml.SafeCanonicalizationMethods,
DefaultSafeTransformMethods(SignedXml.s_defaultSafeTransformMethods));
return(false);
}