public bool Verify()
{
var signatureXml = GetSignature();
var signedXml = new ExtendedSignedXml(Xml);
signedXml.LoadXml(signatureXml);
foreach (var attachment in Attachments)
{
var reference = new Reference(attachment.Stream)
{
Uri = "cid:" + attachment.ContentId,
DigestMethod = SignedXml.XmlDsigSHA256Url
};
reference.AddTransform(new AttachmentContentSignatureTransform());
signedXml.AddExternalReference(reference);
}
var securityXml = GetSecurity();
var security = XmlToObject.Deserialize <AS4.Security.Security>(securityXml);
var certificate = new X509Certificate2(security.BinarySecurityToken.Value);
return(signedXml.CheckSignature(certificate.GetRSAPublicKey()));
}
public bool Verify()
{
var signedXml = new ExtendedSignedXml(Xml);
var signature = GetSignature(Xml);
signedXml.LoadXml(signature);
return(signedXml.CheckSignature());
}
private static VerificationResults PerformValidationFromXml(string xml, VerificationParameters validationParameters)
{
var document = new XmlDocument {
PreserveWhitespace = true
};
document.LoadXml(xml);
var newsignedXml = new ExtendedSignedXml(document);
if (document.DocumentElement == null)
{
throw new InvalidDocumentException("Document has no root element");
}
var signatureNode = XmlDsigNodesHelper.GetSignatureNode(document);
newsignedXml.LoadXml(signatureNode);
var verificationCertificate = GetVerificationCertificate(newsignedXml, validationParameters);
if (verificationCertificate == null)
{
throw new Exception("Signer public key could not be found");
}
if (!newsignedXml.CheckSignature(verificationCertificate, !validationParameters.VerifyCertificate))
{
throw new InvalidOperationException("Signature is invalid.");
}
var results = new VerificationResults
{
Timestamp = GetTimeStampFromSignature(document),
OriginalDocument = GetDocumentFromSignature(document),
SigningCertificate = GetCertificateFromSignature(document)
};
return(results);
}