public void LoadXml(XmlElement value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if ((value.LocalName != XmlSignature.ElementNames.Reference) || (value.NamespaceURI != XmlSignature.NamespaceURI))
{
throw new CryptographicException();
}
id = GetAttribute(value, XmlSignature.AttributeNames.Id);
uri = GetAttribute(value, XmlSignature.AttributeNames.URI);
type = GetAttribute(value, XmlSignature.AttributeNames.Type);
// Note: order is important for validations
XmlNodeList xnl = value.GetElementsByTagName(XmlSignature.ElementNames.Transform, XmlSignature.NamespaceURI);
if ((xnl != null) && (xnl.Count > 0))
{
Transform t = null;
foreach (XmlNode xn in xnl)
{
string a = GetAttribute((XmlElement)xn, XmlSignature.AttributeNames.Algorithm);
t = TransformFactory.fromURI(a);
if (t == null)
{
throw new CryptographicException("Unknown transform {0}.", a);
}
if (xn.ChildNodes.Count > 0)
{
t.LoadInnerXml(xn.ChildNodes);
}
AddTransform(t);
}
}
// get DigestMethod
DigestMethod = XmlSignature.GetAttributeFromElement(value, XmlSignature.AttributeNames.Algorithm, XmlSignature.ElementNames.DigestMethod);
// get DigestValue
XmlElement dig = XmlSignature.GetChildElement(value, XmlSignature.ElementNames.DigestValue, XmlSignature.NamespaceURI);
if (dig != null)
{
DigestValue = Convert.FromBase64String(dig.InnerText);
}
element = value;
}