/// <summary>
/// Load state from an XML element
/// </summary>
/// <param name="xmlElement">XML element containing new state</param>
public void LoadXml(System.Xml.XmlElement xmlElement)
{
XmlNamespaceManager xmlNamespaceManager;
XmlNodeList xmlNodeList;
if (xmlElement == null)
{
throw new ArgumentNullException("xmlElement");
}
xmlNamespaceManager = new XmlNamespaceManager(xmlElement.OwnerDocument.NameTable);
xmlNamespaceManager.AddNamespace("ds", SignedXml.XmlDsigNamespaceUrl);
xmlNodeList = xmlElement.SelectNodes("ds:DigestMethod", xmlNamespaceManager);
if (xmlNodeList.Count == 0)
{
throw new CryptographicException("DigestMethod missing");
}
this.digestMethod = new DigestMethod();
this.digestMethod.LoadXml((XmlElement)xmlNodeList.Item(0));
xmlNodeList = xmlElement.SelectNodes("ds:DigestValue", xmlNamespaceManager);
if (xmlNodeList.Count == 0)
{
throw new CryptographicException("DigestValue missing");
}
this.digestValue = Convert.FromBase64String(xmlNodeList.Item(0).InnerText);
}
public static byte[] ComputeHashValue(byte[] value, DigestMethod digestMethod)
{
using (var alg = DigestUtil.GetHashAlg(digestMethod))
{
return alg.ComputeHash(value);
}
}
public static HashAlgorithm GetHashAlg(DigestMethod digestMethod)
{
if (digestMethod == DigestMethod.SHA1)
{
return SHA1.Create();
}
else if (digestMethod == DigestMethod.SHA256)
{
return SHA256.Create();
}
else if (digestMethod == DigestMethod.SHA512)
{
return SHA512.Create();
}
else
{
throw new Exception("Algoritmo no soportado");
}
}
/// <summary>
/// Default constructor
/// </summary>
public DigestAlgAndValueType()
{
this.digestMethod = new DigestMethod();
this.digestValue = null;
}
/// <summary>
/// Load state from an XML element
/// </summary>
/// <param name="xmlElement">XML element containing new state</param>
public void LoadXml(System.Xml.XmlElement xmlElement)
{
XmlNamespaceManager xmlNamespaceManager;
XmlNodeList xmlNodeList;
if (xmlElement == null)
{
throw new ArgumentNullException("xmlElement");
}
xmlNamespaceManager = new XmlNamespaceManager(xmlElement.OwnerDocument.NameTable);
xmlNamespaceManager.AddNamespace("ds", SignedXml.XmlDsigNamespaceUrl);
xmlNodeList = xmlElement.SelectNodes("ds:DigestMethod", xmlNamespaceManager);
if (xmlNodeList.Count == 0)
{
throw new CryptographicException("DigestMethod missing");
}
this.digestMethod = new DigestMethod();
this.digestMethod.LoadXml((XmlElement)xmlNodeList.Item(0));
xmlNodeList = xmlElement.SelectNodes("ds:DigestValue", xmlNamespaceManager);
if (xmlNodeList.Count == 0)
{
throw new CryptographicException("DigestValue missing");
}
this.digestValue = Convert.FromBase64String(xmlNodeList.Item(0).InnerText);
}
/// <summary>
/// Default constructor
/// </summary>
public DigestAlgAndValueType()
{
this.digestMethod = new DigestMethod();
this.digestValue = null;
}
public static void SetCertDigest(byte[] rawCert, DigestMethod digestMethod, DigestAlgAndValueType destination)
{
string digestAlgorithm = null;
switch (digestMethod)
{
case DigestMethod.SHA1:
digestAlgorithm = FirmaXades.SHA1Uri;
break;
case DigestMethod.SHA256:
digestAlgorithm = FirmaXades.SHA256Uri;
break;
case DigestMethod.SHA512:
digestAlgorithm = FirmaXades.SHA512Uri;
break;
}
SetCertDigest(rawCert, digestAlgorithm, destination);
}
