private static XadesInfo GetXadesInfo(string rawPk)
{
var xadesInfo = new XadesInfo
{
RawPk = rawPk,
SigningDateTimeUtc = DateTime.UtcNow
};
var delta = TimeZoneInfo.Local.GetUtcOffset(DateTime.Now);
xadesInfo.TimeZoneOffsetMinutes = Convert.ToInt32(delta.TotalMinutes);
return(xadesInfo);
}
private static XadesObject GetXadesObject(XadesInfo xadesInfo, string signatureid)
{
var xadesObject = new XadesObject
{
QualifyingProperties =
{
Target = $"#{signatureid}",
SignedProperties = { Id = $"{signatureid}-signedprops" }
}
};
var signedSignatureProperties = xadesObject.QualifyingProperties.SignedProperties.SignedSignatureProperties;
var x509CertificateParser = new Org.BouncyCastle.X509.X509CertificateParser();
var bouncyCert = x509CertificateParser.ReadCertificate(Convert.FromBase64String(xadesInfo.RawPk));
var x509IssuerDn = GetOidRepresentation(bouncyCert.IssuerDN.ToString());
x509IssuerDn = IssuerNamePatcher(x509IssuerDn);
var cert = new Cert
{
IssuerSerial =
{
X509IssuerName = x509IssuerDn,
X509SerialNumber = bouncyCert.SerialNumber.ToString()
}
};
#pragma warning disable 612
cert.CertDigest.DigestMethod.Algorithm = CPSignedXml.XmlDsigGost3411UrlObsolete;
#pragma warning restore 612
var rawCertData = Convert.FromBase64String(xadesInfo.RawPk);
var pkHash = HashAlgorithm.Create("GOST3411");
if (pkHash != null)
{
var hashValue = pkHash.ComputeHash(rawCertData);
cert.CertDigest.DigestValue = hashValue;
}
signedSignatureProperties.SigningCertificate.CertCollection.Add(cert);
signedSignatureProperties.SigningTime = xadesInfo.SigningDateTimeUtc.AddMinutes(xadesInfo.TimeZoneOffsetMinutes);
return(xadesObject);
}
