How to know a file has digital signature attribute

Question

Is there any Windows API to know a file has digital signature attribute? Thanks in advance.

Answer 1

you can use the WinVerifyTrust API. Here is an Example C Program on MSDN.

Answer 2

There are a couple of threads about this on the sysinternals forum with some good info and examples:

• HOWTO: Verify digital signature of a file
• HOWTO: Verify the digital signature of a file
• SigCheck functionality