/// <summary>Loads XML data from an <see cref="T:System.Xml.XmlElement" /> into a <see cref="T:System.Security.Cryptography.Xml.CipherData" /> object.</summary>
/// <param name="value">An <see cref="T:System.Xml.XmlElement" /> that represents the XML data to load.</param>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="value" /> parameter is <see langword="null" />.</exception>
/// <exception cref="T:System.Security.Cryptography.CryptographicException">The <see cref="P:System.Security.Cryptography.Xml.CipherData.CipherValue" /> property and the <see cref="P:System.Security.Cryptography.Xml.CipherData.CipherReference" /> property are <see langword="null" />.</exception>
public void LoadXml(XmlElement value)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
XmlNamespaceManager nsmgr = new XmlNamespaceManager(value.OwnerDocument.NameTable);
nsmgr.AddNamespace("enc", "http://www.w3.org/2001/04/xmlenc#");
XmlNode xmlNode1 = value.SelectSingleNode("enc:CipherValue", nsmgr);
XmlNode xmlNode2 = value.SelectSingleNode("enc:CipherReference", nsmgr);
if (xmlNode1 != null)
{
if (xmlNode2 != null)
{
throw new CryptographicException("Cryptography_Xml_CipherValueElementRequired");
}
this.m_cipherValue = Convert.FromBase64String(Exml.DiscardWhiteSpaces(xmlNode1.InnerText));
}
else
{
if (xmlNode2 == null)
{
throw new CryptographicException("Cryptography_Xml_CipherValueElementRequired");
}
this.m_cipherReference = new CipherReference();
this.m_cipherReference.LoadXml((XmlElement)xmlNode2);
}
this.m_cachedXml = value;
}
/// <summary>Initializes a new instance of the <see cref="T:System.Security.Cryptography.Xml.CipherData" /> class using a <see cref="T:System.Security.Cryptography.Xml.CipherReference" /> object.</summary>
/// <param name="cipherReference">The <see cref="T:System.Security.Cryptography.Xml.CipherReference" /> object to use.</param>
/// <exception cref="T:System.Security.Cryptography.CryptographicException">The <see cref="P:System.Security.Cryptography.Xml.CipherData.CipherValue" /> property has already been set.</exception>
public CipherData(CipherReference cipherReference)
{
this.CipherReference = cipherReference;
}