HEMAMBUJAVALLY 0 Newbie Poster

Where can i get the header files. I need to covert the BLS algorithm from C to VB.Net.
So i need to understand every lines in this code.

http://crypto.stanford.edu/pbc/chunked/ch02.html

Please guide me.

I need an example to perform BLS algorithm(like bob and alice example).
I'm feeling difficulty in this algorithm.

Thanks,