// Reconstruct an asymmetric algorithm object from an XML string.
public override void FromXmlString(String xmlString)
{
SecurityElement elem;
DSAParameters dsaParams = new DSAParameters();
String tag;
if (xmlString == null)
{
throw new ArgumentNullException("xmlString");
}
try
{
elem = SecurityElement.Parse(xmlString);
if (elem == null || elem.Tag != "DSAKeyValue")
{
throw new CryptographicException
(_("Crypto_InvalidDSAParams"));
}
foreach (SecurityElement child in elem.Children)
{
tag = child.Tag;
if (tag == "P")
{
dsaParams.P = Convert.FromBase64String
(child.Text);
}
else if (tag == "Q")
{
dsaParams.Q = Convert.FromBase64String
(child.Text);
}
else if (tag == "G")
{
dsaParams.G = Convert.FromBase64String
(child.Text);
}
else if (tag == "Y")
{
dsaParams.Y = Convert.FromBase64String
(child.Text);
}
else if (tag == "J")
{
dsaParams.J = Convert.FromBase64String
(child.Text);
}
else if (tag == "Seed")
{
dsaParams.Seed = Convert.FromBase64String
(child.Text);
}
else if (tag == "X")
{
dsaParams.X = Convert.FromBase64String
(child.Text);
}
else if (tag == "PgenCounter")
{
byte[] count = Convert.FromBase64String
(child.Text);
dsaParams.Counter = 0;
foreach (byte b in count)
{
dsaParams.Counter =
(dsaParams.Counter << 8) + (int)b;
}
}
}
}
catch (FormatException)
{
throw new CryptographicException
(_("Crypto_InvalidDSAParams"));
}
catch (ArgumentNullException)
{
throw new CryptographicException
(_("Crypto_InvalidDSAParams"));
}
ImportParameters(dsaParams);
}
// Reconstruct an asymmetric algorithm object from an XML string.
public override void FromXmlString(String xmlString)
{
SecurityElement elem;
RSAParameters rsaParams = new RSAParameters();
String tag;
if (xmlString == null)
{
throw new ArgumentNullException("xmlString");
}
try
{
elem = SecurityElement.Parse(xmlString);
if (elem == null || elem.Tag != "RSAKeyValue")
{
throw new CryptographicException
(_("Crypto_InvalidRSAParams"));
}
foreach (SecurityElement child in elem.Children)
{
tag = child.Tag;
if (tag == "Modulus")
{
rsaParams.Modulus = Convert.FromBase64String
(child.Text);
}
else if (tag == "Exponent")
{
rsaParams.Exponent = Convert.FromBase64String
(child.Text);
}
else if (tag == "D")
{
rsaParams.D = Convert.FromBase64String
(child.Text);
}
else if (tag == "DP")
{
rsaParams.DP = Convert.FromBase64String
(child.Text);
}
else if (tag == "DQ")
{
rsaParams.DQ = Convert.FromBase64String
(child.Text);
}
else if (tag == "InverseQ")
{
rsaParams.InverseQ = Convert.FromBase64String
(child.Text);
}
else if (tag == "P")
{
rsaParams.P = Convert.FromBase64String
(child.Text);
}
else if (tag == "Q")
{
rsaParams.Q = Convert.FromBase64String
(child.Text);
}
}
}
catch (FormatException)
{
throw new CryptographicException
(_("Crypto_InvalidRSAParams"));
}
catch (ArgumentNullException)
{
throw new CryptographicException
(_("Crypto_InvalidRSAParams"));
}
ImportParameters(rsaParams);
}