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);
}
private void completeSignature()
{
// Get the ID of the document currently being signed.
var docId = DocumentIds[DocumentIndex];
PKCertificate cert;
byte[] signatureContent;
try {
// Decode the user's certificate.
cert = PKCertificate.Decode(Convert.FromBase64String(CertificateField.Value));
// Instantiate a CadesSigner class.
var cadesSigner = new CadesSigner();
// Set the document to be signed and the policy, exactly like in the previous action
// (SubmitCertificateButton_Click).
cadesSigner.SetDataToSign(Storage.GetBatchDocContent(docId));
cadesSigner.SetPolicy(getSignaturePolicy());
// Set the signer certificate.
cadesSigner.SetSigningCertificate(cert);
// Optionally, set whether the content should be encapsulated in the resulting CMS.
cadesSigner.SetEncapsulatedContent(false);
// Set the signature computed on the client-side, along with the "to-sign-bytes" recovered from
// the page.
cadesSigner.SetPrecomputedSignature(Convert.FromBase64String(SignatureField.Value), Convert.FromBase64String(ToSignBytesField.Value));
// Call ComputeSignature(), which does all the work, including validation of the signer's
// certificate and of the resulting signature.
cadesSigner.ComputeSignature();
// Get the signature as an array of bytes.
signatureContent = cadesSigner.GetSignature();
}
catch (ValidationException ex) {
// One or more validations failed. We log the error and update the page with a summary of what
// happened to this document.
logger.Error(ex, "Validation error completing the signature of a batch document");
setValidationError(ex.ValidationResults);
return;
}
catch (Exception ex) {
// An error has occurred. We log the error and update the page with a summary of what happened to
// this document.
logger.Error(ex, "Error completing the signature of a batch document");
setError(ex.Message);
return;
}
// Store the signed file.
var file = Storage.StoreFile(signatureContent, ".p7s");
// Update the page with a link to the signed file.
var docItem = DocumentsListView.Items[DocumentIndex];
docItem.DataItem = new DocumentItem()
{
Id = DocumentIds[DocumentIndex],
DownloadLink = "Download?file=" + file
};
docItem.DataBind();
}
private async Task <bool> sign(TaskProgressDialog progressDialog)
{
try {
var signer = new CadesSigner();
if (CoSign)
{
progressDialog.Message = "Reading existing CAdES signature ...";
}
else
{
progressDialog.Message = "Reading file ...";
}
await Task.Delay(TimeSpan.FromMilliseconds(100));
if (CoSign)
{
var cmsBytes = await readAllBytesAsync(CmsPath, progressDialog.CancellationToken);
signer.SetSignatureToCoSign(cmsBytes);
}
else
{
var fileBytes = await readAllBytesAsync(FilePath, progressDialog.CancellationToken);
signer.SetDataToSign(fileBytes);
}
if (progressDialog.CancellationToken.IsCancellationRequested)
{
return(false);
}
progressDialog.Progress = 33;
progressDialog.Message = "Signing ...";
await Task.Delay(TimeSpan.FromMilliseconds(100));
signer.SetSigningCertificate(SelectedCertificate.CertificateWithKey);
signer.SetPolicy(CadesPoliciesForGeneration.GetCadesBasic(App.GetTrustArbitrator()));
signer.SetEncapsulatedContent(this.EncapsulateContent);
signer.ComputeSignature();
var signature = signer.GetSignature();
if (progressDialog.CancellationToken.IsCancellationRequested)
{
return(false);
}
progressDialog.Progress = 66;
progressDialog.Message = "Saving signature ...";
await Task.Delay(TimeSpan.FromMilliseconds(100));
var saveFileDialog = new SaveFileDialog()
{
Filter = "CAdES signature files (.p7s)|*.p7s",
FilterIndex = 1,
FileName = CoSign ? string.Format("{0}-{1:yyyy-MM-dd-HHmmss}.p7s", Path.GetFileNameWithoutExtension(CmsPath), DateTime.Now) : FilePath + ".p7s"
};
if (saveFileDialog.ShowDialog() != true)
{
return(false);
}
var outFilePath = saveFileDialog.FileName;
await writeAllBytesAsync(outFilePath, signature, progressDialog.CancellationToken);
if (progressDialog.CancellationToken.IsCancellationRequested)
{
return(false);
}
progressDialog.Progress = 100;
progressDialog.Message = "Completed!";
return(true);
} catch (ValidationException ex) {
new ValidationResultsDialog("Validation failed", ex.ValidationResults).ShowDialog();
return(false);
} catch (Exception ex) {
logger.Error(ex, "Error while performing CAdES signature");
MessageBox.Show(ex.Message);
return(false);
}
}