public SignatureValidator(WebService webService)
{
this._valid = true;
this._inputDocument = (XmlDocument)webService.InputString.Clone();
this._canonicalizator = new Canonicalizator(this._inputDocument);
this._tempdocument = (XmlDocument)this._inputDocument.Clone();
this._wsSecurityHeaderList = new ArrayList();
this._encryptedDataList = new ArrayList();
this._decryptedDataList = new ArrayList();
this._encryptedKeyElements = new ArrayList();
this._referenceList = new ArrayList();
this._webService = webService;
this._signedXml = new SignedXml(this._inputDocument);
this._signatureReferenceList = new ArrayList();
this._securityHeader = this._inputDocument.GetElementsByTagName("wsse:Security")[0];
if (this._securityHeader != null)
{
foreach (XmlElement securityHeader in this._securityHeader)
{
if (securityHeader.Name.Equals("xenc:EncryptedData"))
{
this.DercryptSingleXmlElement((XmlElement)this._wsSecurityHeaderList[0]);
this.FillSecurityHeaderElementsList();
}
this._wsSecurityHeaderList.Add(securityHeader);
}
}
this._tracer = new WSSecurityTracer();
foreach (XmlElement tempElement in this._wsSecurityHeaderList)
{
if (tempElement.Name.Equals("xenc:EncryptedKey"))
{
try
{
string decryptedElement = this.DercryptSingleXmlElement(tempElement);
}
catch (Exception e)
{
this._webService.ShowError(e.Message);
this._valid = false;
}
}
if (tempElement.Name.Equals("ds:Signature"))
{
this.ValidateSignature(tempElement);
}
}
this._webService.presentation.Dispatcher.Invoke(DispatcherPriority.Normal, (SendOrPostCallback) delegate
{
this._webService.presentation.txtTrace.Text += this._tracer.signatureTrace;
this._webService.presentation.txtTrace.Text += this._tracer.decryptionTrace;
}, null);
this._webService.ModifiedInputDocument = this._inputDocument;
}
public void CanonicalizeSignedInfo(XmlElement SignedInfo)
{
Canonicalizator canonicalizator = new Canonicalizator(this._inputDocument);
Stream stream = canonicalizator.CanonicalizeNode(SignedInfo);
StreamReader canonicalizedStreamReader = new StreamReader(stream);
string canonicalizedString = canonicalizedStreamReader.ReadToEnd();
this._canonicalizedSignedInfo = canonicalizedString;
this.ValidateSignature(this._signedXml.Signature, this._signedXml.SignatureValue);
}
public string CanonicalizeSignedInfo(int signatureNumber)
{
XmlElement signedInfo = (XmlElement)this._inputDocument.GetElementsByTagName("ds:SignedInfo")[signatureNumber];
this._canonicalizator = new Canonicalizator(this._inputDocument);
Stream stream = this._canonicalizator.CanonicalizeNode(signedInfo);
StreamReader sreader = new StreamReader(stream);
string canonString = sreader.ReadToEnd();
return(canonString);
}
public byte[] DigestElement(XmlElement element, string hashAlgorithm, string canonicalizationAlgorithm)
{
Canonicalizator canonicalizator = new Canonicalizator(this._inputDocument);
Stream canonicalStream = canonicalizator.CanonicalizeNode(element);
canonicalStream.Position = 0;
StreamReader canonicalStreamReader = new StreamReader(canonicalStream);
string canonString = canonicalStreamReader.ReadToEnd();
SHA1CryptoServiceProvider sha1CryptoServiceProvider = new SHA1CryptoServiceProvider();
canonicalStream.Position = 0;
byte[] hash = sha1CryptoServiceProvider.ComputeHash(canonicalStream);
string base64ConvertedHashValue = Convert.ToBase64String(hash);
return(hash);
}
