//
// virtual methods
//
protected virtual AsymmetricAlgorithm GetPublicKey()
{
if (KeyInfo == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_KeyInfoRequired"));
}
if (m_x509Enum != null)
{
AsymmetricAlgorithm key = GetNextCertificatePublicKey();
if (key != null)
{
return(key);
}
}
if (m_keyInfoEnum == null)
{
m_keyInfoEnum = KeyInfo.GetEnumerator();
}
// In our implementation, we move to the next KeyInfo clause which is an RSAKeyValue, DSAKeyValue or KeyInfoX509Data
while (m_keyInfoEnum.MoveNext())
{
RSAKeyValue rsaKeyValue = m_keyInfoEnum.Current as RSAKeyValue;
if (rsaKeyValue != null)
{
return(rsaKeyValue.Key);
}
DSAKeyValue dsaKeyValue = m_keyInfoEnum.Current as DSAKeyValue;
if (dsaKeyValue != null)
{
return(dsaKeyValue.Key);
}
KeyInfoX509Data x509Data = m_keyInfoEnum.Current as KeyInfoX509Data;
if (x509Data != null)
{
m_x509Collection = Utils.BuildBagOfCerts(x509Data, CertUsageType.Verification);
if (m_x509Collection.Count > 0)
{
m_x509Enum = m_x509Collection.GetEnumerator();
AsymmetricAlgorithm key = GetNextCertificatePublicKey();
if (key != null)
{
return(key);
}
}
}
GostKeyValue gostKeyValue = m_keyInfoEnum.Current as GostKeyValue;
if (gostKeyValue != null)
{
return(gostKeyValue.Key);
}
}
return(null);
}
protected override AsymmetricAlgorithm GetPublicKey()
{
if (KeyInfo == null)
{
throw ExceptionUtility.CryptographicException(Resources.XmlKeyInfoRequired);
}
if (X509Enumumerable != null)
{
var nextCertificatePublicKey = GetNextCertificatePublicKey();
if (nextCertificatePublicKey != null)
{
return(nextCertificatePublicKey);
}
}
if (KeyInfoEnumerable == null)
{
KeyInfoEnumerable = KeyInfo.GetEnumerator();
}
var keyInfoEnum = KeyInfoEnumerable;
while (keyInfoEnum.MoveNext())
{
var rsaKeyValue = keyInfoEnum.Current as RSAKeyValue;
if (rsaKeyValue != null)
{
return(rsaKeyValue.Key);
}
var dsaKeyValue = keyInfoEnum.Current as DSAKeyValue;
if (dsaKeyValue != null)
{
return(dsaKeyValue.Key);
}
var gostKeyValue = keyInfoEnum.Current as GostKeyValue;
if (gostKeyValue != null)
{
return(gostKeyValue.Key);
}
var keyInfoX509Data = keyInfoEnum.Current as KeyInfoX509Data;
if (keyInfoX509Data != null)
{
X509Collection = GostXmlUtils.BuildBagOfCertsVerification(keyInfoX509Data);
if (X509Collection.Count > 0)
{
X509Enumumerable = X509Collection.GetEnumerator();
var nextCertificatePublicKey = GetNextCertificatePublicKey();
if (nextCertificatePublicKey != null)
{
return(nextCertificatePublicKey);
}
}
}
}
return(null);
}