I'm trying to determine if our digital signature generation code will work without change using a European Qualified Digital Certificate in place of the RSA signing certificate that we normally use.
It seems like the structure of the qualified certificate is the same as any other signing certificate, but has special rules around how it is generated. If this is the case, then I suppose existing certificate handling code should continue to work. But I haven't found actual confirmation of this theory, and I don't have a QDC in hand to try it.
The code in question is a Windows-based C++ application using the Microsoft Cryptography API functions. I also asked the question with code example on stackoverflow.com.
Anybody have experience with this?