private static int RunSignAndReturnExitCode(SignOptions opts)
{
var certificates = WindowsCertificateStore.LoadPersonalCurrentUser().GetCertificatesWithKey().Where(c => c.Certificate.PkiBrazil.CPF != null).ToList();
var certificate = certificates[opts.Certificate];
var fileName = opts.InputFile;
using var stream = File.OpenRead(fileName);
var digestAlgorithm = DigestAlgorithm.SHA256;
var digest = digestAlgorithm.ComputeHash(stream);
var signer = new CadesSigner();
signer.SetSigningCertificate(certificate);
signer.SetPolicy(CadesPoliciesForGeneration.GetPkiBrazilAdrBasica());
signer.SetEncapsulatedContent(false);
signer.SetDataDigestToSign(digestAlgorithm, digest);
signer.ComputeSignature();
var cades = signer.GetSignature();
File.WriteAllBytes(opts.SignedFile, cades);
stream.Close();
return(0);
}