public virtual void SignData(IPdfSigningSession pdfPostSigningSession, string signedHashBase64)
{
try
{
var signedPdfData = Convert.FromBase64String(signedHashBase64);
var authenticatedAttribute = Convert.FromBase64String(pdfPostSigningSession.AuthenticatedAttributes.ValueBase64);
TokenService.ValidateSignature(pdfPostSigningSession.UserCertificate, pdfPostSigningSession.HashAlgorithm, authenticatedAttribute, signedPdfData);
var publicKeyManager = GetPublicKeyManager(pdfPostSigningSession);
publicKeyManager.SetExternalDigest(signedPdfData, null, pdfPostSigningSession.SignatureAlgorithm);
//var tsaServer = new TSAClientBouncyCastle("https://freetsa.org/tsr");
var encodedSignature = publicKeyManager
.GetEncodedPKCS7
(
pdfPostSigningSession.AuthenticatedAttributes.DigestedData,
null,
null,
null,
CryptoStandard.CMS
);
UpdatePdfDictionaryContents(pdfPostSigningSession.AuthenticatedAttributes.PdfSignatureAppearance, encodedSignature);
}
catch (Exception ex)
{
UpdatePdfDictionaryContents(pdfPostSigningSession.AuthenticatedAttributes.PdfSignatureAppearance, new byte[] { });
throw ex;
}
}
public virtual void OnCreateCache(IPdfSigningSession pdfPostSigningSession, ISigningDocument document, CacheItemPolicy cacheItemPolicy, out bool removerCache)
{
removerCache = true;
if (!Cache.Add(pdfPostSigningSession.FileId, pdfPostSigningSession, cacheItemPolicy))
{
throw new FileBeingSignedException();
}
}
public virtual void UpdateDocument(IPdfSigningSession pdfPostSigningSession, ISigningDocument document)
{
}
public virtual void OnDocumentSigned(IPdfSigningSession sessionData)
{
}
