public void FromXmlString(string xml, ECKeyXmlFormat format)
{
if (xml == null)
{
throw new ArgumentNullException("xml");
}
if (format != ECKeyXmlFormat.Rfc4050)
{
throw new ArgumentOutOfRangeException("format");
}
this.Key = Rfc4050KeyFormatter.FromXml(xml);
}
public static ECDiffieHellmanCngPublicKey FromXmlString(string xml)
{
if (xml == null)
{
throw new ArgumentNullException("xml");
}
using (CngKey key = Rfc4050KeyFormatter.FromXml(xml))
{
if (key.AlgorithmGroup != CngAlgorithmGroup.ECDiffieHellman)
{
throw new ArgumentException(System.SR.GetString("Cryptography_ArgECDHRequiresECDHKey"), "xml");
}
return(new ECDiffieHellmanCngPublicKey(key));
}
}
public void FromXmlString(string xml, ECKeyXmlFormat format)
{
if (xml == null)
{
throw new ArgumentNullException("xml");
}
if (format != ECKeyXmlFormat.Rfc4050)
{
throw new ArgumentOutOfRangeException("format");
}
bool isEcdh;
ECParameters parameters = Rfc4050KeyFormatter.FromXml(xml, out isEcdh);
// .NET 4.6.2 allowed ECDsaCng to wrap ECDH keys because of interop with non-Windows PFX files.
// As a result XML marked as ECDiffieHellman loaded just fine, so no check should be done on the
// key type.
ImportParameters(parameters);
}
public void FromXmlString(string xml, ECKeyXmlFormat format)
{
if (xml == null)
{
throw new ArgumentNullException("xml");
}
if (format != ECKeyXmlFormat.Rfc4050)
{
throw new ArgumentOutOfRangeException("format");
}
bool isEcdh;
ECParameters ecParams = Rfc4050KeyFormatter.FromXml(xml, out isEcdh);
if (!isEcdh)
{
throw new ArgumentException(SR.GetString(SR.Cryptography_ArgECDHRequiresECDHKey), "xml");
}
ImportParameters(ecParams);
}
public static ECDiffieHellmanCngPublicKey FromXmlString(string xml)
{
if (xml == null)
{
throw new ArgumentNullException("xml");
}
bool isEcdh;
ECParameters parameters = Rfc4050KeyFormatter.FromXml(xml, out isEcdh);
if (!isEcdh)
{
throw new ArgumentException(SR.GetString(SR.Cryptography_ArgECDHRequiresECDHKey), "xml");
}
CngKeyBlobFormat format;
string curveName;
byte[] blob = ECCng.EcdhParametersToBlob(ref parameters, out format, out curveName);
return(new ECDiffieHellmanCngPublicKey(blob, curveName, format));
}