Any delphi component for digital signing documents?

Question

I'm looking for a good standard based component for digitally sign documents with x509 certificates. I can't see no one native component for this. Only Activex components.

Answer 1

You can use OpenSSL for that.

take a look here: delphiopenssl

Answer 2

The problem with doing it yourself is that you don't have a third party being an independent verification of the validity of the certificate.

It's a trust thing, and that's why companies like VeriSign and Comodo make the big bucks.

Answer 3

Check out Secure Black Box from Eldos which I have used in my apps to "sign" files.