private void readCertificate()
{
var certs = PfxReader.ReadCertificate(SignatureData.CertificateFile.PfxPath, SignatureData.CertificateFile.PfxPassword);
_asymmetricKeyParameter = certs.PublicKey;
_chain = certs.X509PrivateKeys;
}
private void setPublicKeyEncryption(List <int> permissionsList)
{
if (DocumentSecurity.EncryptionPreferences.EncryptionType != EncryptionType.PublicKeyEncryption)
{
return;
}
if (permissionsList.Count == 0)
{
permissionsList.Add(PdfWriter.AllowScreenReaders);
}
var certs = PfxReader.ReadCertificate(DocumentSecurity.EncryptionPreferences.PublicKeyEncryption.PfxPath, DocumentSecurity.EncryptionPreferences.PublicKeyEncryption.PfxPassword);
PdfWriter.SetEncryption(
certs: certs.X509PrivateKeys,
permissions: permissionsList.ToArray(),
encryptionType: PdfWriter.ENCRYPTION_AES_128);
}
private void signPublicKeyEncryption(Stream pdfStreamOutput)
{
if (DocumentSecurity.EncryptionPreferences.EncryptionType != EncryptionType.PublicKeyEncryption)
{
return;
}
var pfxData = PfxReader.ReadCertificate(DocumentSecurity.EncryptionPreferences.PublicKeyEncryption.PfxPath, DocumentSecurity.EncryptionPreferences.PublicKeyEncryption.PfxPassword);
DocumentSecurity.DigitalSignature.CertificateFile.AppendSignature = true;
new SignatureWriter
{
SignatureData = new Signature
{
CertificateFile = DocumentSecurity.DigitalSignature.CertificateFile,
SigningInfo = DocumentSecurity.DigitalSignature.SigningInfo,
VisibleSignature = DocumentSecurity.DigitalSignature.VisibleSignature
}
}.SignPdf(pdfStreamOutput, pfxData);
}
