openid in asp classic

salut,poate cineva a imlementat openid in asp? stiu ca sunt o gramada de librarii in .net c, etc.. dar nu e nimic in privinta asp simplu :(Problema e in a folosi diffie-hellman cryptography .. dupa cum sugereaza openid 2.0 specification.. nu am gasit asa ceva p/n asp 10x in advance!