public static string GetSignedRequestXades(string request, X509Certificate2 certificate, string privateKeyPassword)
{
var provider = SigningKeyProvider.GetProvider(certificate);
provider.SetCointainerPassword(privateKeyPassword);
var originalDoc = new XmlDocument()
{
PreserveWhitespace = _PRESERVE_WHITESPACE
};
originalDoc.LoadXml(request);
var signatureid = String.Format("xmldsig-{0}", Guid.NewGuid().ToString().ToLower());
var signedXml = GetXadesSignedXml(provider, originalDoc, signatureid);
var keyInfo = GetKeyInfo(Convert.ToBase64String(certificate.GetRawCertData()));
signedXml.KeyInfo = keyInfo;
var xadesInfo = GetXadesInfo(certificate);
var xadesObject = GetXadesObject(provider, xadesInfo, signatureid);
signedXml.AddXadesObject(xadesObject, provider.DigestMethod);
signedXml.ComputeSignature();
InjectSignatureToOriginalDoc(signedXml, originalDoc);
return(originalDoc.OuterXml);
}
public static XadesObject GetXadesObject(SigningKeyProvider provider, XadesInfo xadesInfo, string signatureid)
{
XadesObject xadesObject = new XadesObject();
xadesObject.QualifyingProperties.Target = String.Format("#{0}", signatureid);
xadesObject.QualifyingProperties.SignedProperties.Id = String.Format("{0}-signedprops", signatureid);
SignedSignatureProperties signedSignatureProperties = xadesObject.QualifyingProperties.SignedProperties.SignedSignatureProperties;
var x509CertificateParser = new Org.BouncyCastle.X509.X509CertificateParser();
X509Certificate bouncyCert = x509CertificateParser.ReadCertificate(Convert.FromBase64String(xadesInfo.RawPK));
var cert = new Cert
{
IssuerSerial =
{
X509IssuerName = GetOidRepresentation(bouncyCert.IssuerDN.ToString()),
X509SerialNumber = bouncyCert.SerialNumber.ToString()
}
};
cert.CertDigest.DigestMethod.Algorithm = provider.DigestMethod;
var rawCertData = Convert.FromBase64String(xadesInfo.RawPK);
var pkHash = HashAlgorithm.Create(provider.HashAlgorithmName);
var hashValue = pkHash.ComputeHash(rawCertData);
cert.CertDigest.DigestValue = hashValue;
signedSignatureProperties.SigningCertificate.CertCollection.Add(cert);
signedSignatureProperties.SigningTime = GetSigningTimeOffset(xadesInfo.SigningDateTimeUTC, xadesInfo.TimeZoneOffsetMinutes);
return(xadesObject);
}
public static XadesSignedXml GetXadesSignedXml(SigningKeyProvider provider, XmlDocument originalDoc, string signatureid)
{
var signedXml = new XadesSignedXml(originalDoc)
{
SigningKey = provider.SigningKey
};
signedXml.Signature.Id = signatureid;
signedXml.SignatureValueId = String.Format("{0}-sigvalue", signatureid);
var reference = new Reference
{
Uri = "#signed-data-container",
DigestMethod = provider.DigestMethod,
Id = String.Format("{0}-ref0", signatureid)
};
reference.AddTransform(new XmlDsigEnvelopedSignatureTransform());
reference.AddTransform(new XmlDsigExcC14NTransform());
signedXml.AddReference(reference);
signedXml.SignedInfo.CanonicalizationMethod = SignedXml.XmlDsigCanonicalizationUrl;
signedXml.SignedInfo.SignatureMethod = provider.SignatureMethod;
return(signedXml);
}