[Help-gnutls] Signature Verify functions

[Juan Pablo Ugarte]

Hello guys.

I need a function to verify a little text using a public key.

Its for a GPL project, i only need to verify some text and I can not add
gnutls as a dependancy because its just for an easter egg :)

hehe, anyways i just want to implement something like this...

int
verify_sign (pubkey, text, sign);

Can anyone give me some pointers on wich files/functions should i "look"
to implement such function?

thanks a lot

Juan Pablo