private void DecryptEncryptedGrants(XmlNodeList encryptedGrantList, IRelDecryptor decryptor)
{
XmlElement encryptionMethod;
XmlElement keyInfo;
XmlElement cipherData;
EncryptionMethod encryptionMethodObj;
KeyInfo keyInfoObj;
CipherData cipherDataObj;
for (int i = 0, count = encryptedGrantList.Count; i < count; i++)
{
encryptionMethod = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/enc:EncryptionMethod", _namespaceManager) as XmlElement;
keyInfo = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/dsig:KeyInfo", _namespaceManager) as XmlElement;
cipherData = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/enc:CipherData", _namespaceManager) as XmlElement;
if ((encryptionMethod != null) &&
(keyInfo != null) &&
(cipherData != null))
{
encryptionMethodObj = new EncryptionMethod();
keyInfoObj = new KeyInfo();
cipherDataObj = new CipherData();
encryptionMethodObj.LoadXml(encryptionMethod);
keyInfoObj.LoadXml(keyInfo);
cipherDataObj.LoadXml(cipherData);
MemoryStream toDecrypt = null;
Stream decryptedContent = null;
StreamReader streamReader = null;
try
{
toDecrypt = new MemoryStream(cipherDataObj.CipherValue);
decryptedContent = _relDecryptor.Decrypt(encryptionMethodObj,
keyInfoObj, toDecrypt);
if ((decryptedContent == null) || (decryptedContent.Length == 0))
{
throw new CryptographicException(SR.Cryptography_Xml_XrmlUnableToDecryptGrant);
}
streamReader = new StreamReader(decryptedContent);
string clearContent = streamReader.ReadToEnd();
encryptedGrantList[i].ParentNode.InnerXml = clearContent;
}
finally
{
toDecrypt?.Close();
decryptedContent?.Close();
streamReader?.Close();
}
}
}
}
//<SNIPPET2>
public static void CheckSignatureWithEncryptedGrant(string fileName, IRelDecryptor decryptor)
{
// Create a new XML document.
XmlDocument xmlDocument = new XmlDocument();
XmlNamespaceManager nsManager = new XmlNamespaceManager(xmlDocument.NameTable);
// Format using white spaces.
xmlDocument.PreserveWhitespace = true;
// Load the passed XML file into the document.
xmlDocument.Load(fileName);
nsManager.AddNamespace("dsig", SignedXml.XmlDsigNamespaceUrl);
// Find the "Signature" node and create a new XmlNodeList object.
XmlNodeList nodeList = xmlDocument.SelectNodes("//dsig:Signature", nsManager);
for (int i = 0, count = nodeList.Count; i < count; i++)
{
XmlDocument clone = xmlDocument.Clone() as XmlDocument;
XmlNodeList signatures = clone.SelectNodes("//dsig:Signature", nsManager);
// Create a new SignedXml object and pass into it the XML document clone.
SignedXml signedXml = new SignedXml(clone);
// Load the signature node.
signedXml.LoadXml((XmlElement)signatures[i]);
// Set the context for license transform
Transform trans = ((Reference)signedXml.SignedInfo.References[0]).TransformChain[0];
if (trans is XmlLicenseTransform)
{
// Decryptor is used to decrypt encryptedGrant elements.
if (decryptor != null)
{
(trans as XmlLicenseTransform).Decryptor = decryptor;
}
}
// Check the signature and display the result.
bool result = signedXml.CheckSignature();
if (result)
{
Console.WriteLine("SUCCESS: CheckSignatureWithEncryptedGrant - issuer index #" +
i.ToString());
}
else
{
Console.WriteLine("FAILURE: CheckSignatureWithEncryptedGrant - issuer index #" +
i.ToString());
}
}
}
private void DecryptEncryptedGrants(XmlNodeList encryptedGrantList, IRelDecryptor decryptor)
{
XmlElement element = null;
XmlElement element2 = null;
XmlElement element3 = null;
EncryptionMethod encryptionMethod = null;
KeyInfo keyInfo = null;
CipherData data = null;
int num = 0;
int count = encryptedGrantList.Count;
while (num < count)
{
element = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/enc:EncryptionMethod", this.namespaceManager) as XmlElement;
element2 = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/dsig:KeyInfo", this.namespaceManager) as XmlElement;
element3 = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/enc:CipherData", this.namespaceManager) as XmlElement;
if (((element != null) && (element2 != null)) && (element3 != null))
{
encryptionMethod = new EncryptionMethod();
keyInfo = new KeyInfo();
data = new CipherData();
encryptionMethod.LoadXml(element);
keyInfo.LoadXml(element2);
data.LoadXml(element3);
MemoryStream toDecrypt = null;
Stream stream = null;
StreamReader reader = null;
try
{
toDecrypt = new MemoryStream(data.CipherValue);
stream = this.relDecryptor.Decrypt(encryptionMethod, keyInfo, toDecrypt);
if ((stream == null) || (stream.Length == 0L))
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_XrmlUnableToDecryptGrant"));
}
reader = new StreamReader(stream);
string str = reader.ReadToEnd();
encryptedGrantList[num].ParentNode.InnerXml = str;
}
finally
{
if (toDecrypt != null)
{
toDecrypt.Close();
}
if (stream != null)
{
stream.Close();
}
if (reader != null)
{
reader.Close();
}
}
encryptionMethod = null;
keyInfo = null;
data = null;
}
element = null;
element2 = null;
element3 = null;
num++;
}
}
private void DecryptEncryptedGrants(XmlNodeList encryptedGrantList, IRelDecryptor decryptor) {
XmlElement encryptionMethod = null;
XmlElement keyInfo = null;
XmlElement cipherData = null;
EncryptionMethod encryptionMethodObj = null;
KeyInfo keyInfoObj = null;
CipherData cipherDataObj = null;
for (int i = 0, count = encryptedGrantList.Count; i < count; i++) {
encryptionMethod = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/enc:EncryptionMethod", namespaceManager) as XmlElement;
keyInfo = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/dsig:KeyInfo", namespaceManager) as XmlElement;
cipherData = encryptedGrantList[i].SelectSingleNode("//r:encryptedGrant/enc:CipherData", namespaceManager) as XmlElement;
if ((encryptionMethod != null) &&
(keyInfo != null) &&
(cipherData != null)) {
encryptionMethodObj = new EncryptionMethod();
keyInfoObj = new KeyInfo();
cipherDataObj = new CipherData();
encryptionMethodObj.LoadXml(encryptionMethod);
keyInfoObj.LoadXml(keyInfo);
cipherDataObj.LoadXml(cipherData);
MemoryStream toDecrypt = null;
Stream decryptedContent = null;
StreamReader streamReader = null;
try {
toDecrypt = new MemoryStream(cipherDataObj.CipherValue);
decryptedContent = relDecryptor.Decrypt(encryptionMethodObj,
keyInfoObj, toDecrypt);
if ((decryptedContent == null) || (decryptedContent.Length == 0))
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_XrmlUnableToDecryptGrant"));
streamReader = new StreamReader(decryptedContent);
string clearContent = streamReader.ReadToEnd();
encryptedGrantList[i].ParentNode.InnerXml = clearContent;
}
finally {
if (toDecrypt != null)
toDecrypt.Close();
if (decryptedContent != null)
decryptedContent.Close();
if (streamReader != null)
streamReader.Close();
}
encryptionMethodObj = null;
keyInfoObj = null;
cipherDataObj = null;
}
encryptionMethod = null;
keyInfo = null;
cipherData = null;
}
}
private void DecryptEncryptedGrants(XmlNodeList encryptedGrantList, IRelDecryptor decryptor)
{
XmlElement element = null;
XmlElement element2 = null;
XmlElement element3 = null;
EncryptionMethod encryptionMethod = null;
KeyInfo keyInfo = null;
CipherData data = null;
int num = 0;
int count = encryptedGrantList.Count;
while (num < count)
{
element = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/enc:EncryptionMethod", this.namespaceManager) as XmlElement;
element2 = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/dsig:KeyInfo", this.namespaceManager) as XmlElement;
element3 = encryptedGrantList[num].SelectSingleNode("//r:encryptedGrant/enc:CipherData", this.namespaceManager) as XmlElement;
if (((element != null) && (element2 != null)) && (element3 != null))
{
encryptionMethod = new EncryptionMethod();
keyInfo = new KeyInfo();
data = new CipherData();
encryptionMethod.LoadXml(element);
keyInfo.LoadXml(element2);
data.LoadXml(element3);
MemoryStream toDecrypt = null;
Stream stream = null;
StreamReader reader = null;
try
{
toDecrypt = new MemoryStream(data.CipherValue);
stream = this.relDecryptor.Decrypt(encryptionMethod, keyInfo, toDecrypt);
if ((stream == null) || (stream.Length == 0L))
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_XrmlUnableToDecryptGrant"));
}
reader = new StreamReader(stream);
string str = reader.ReadToEnd();
encryptedGrantList[num].ParentNode.InnerXml = str;
}
finally
{
if (toDecrypt != null)
{
toDecrypt.Close();
}
if (stream != null)
{
stream.Close();
}
if (reader != null)
{
reader.Close();
}
}
encryptionMethod = null;
keyInfo = null;
data = null;
}
element = null;
element2 = null;
element3 = null;
num++;
}
}
