\input zb-basic \input zb-ioport \iteman{io-port 70107777} \itemau{Van Oorschot, Paul C.; Stubblebine, Stuart G.} \itemti{Countering identity theft through digital uniqueness, location cross-checking, and funneling} \itemso{Financial Cryptography, 31-43 (2005).} \itemcc{} \itemut{} \itemli{doi:10.1007/11507840\_3} \end