\input zb-basic \input zb-ioport \iteman{io-port 70699413} \itemau{Contini, Scott; Lenstra, Arjen K.; Steinfeld, Ron} \itemti{VSH, an efficient and provable collision-resistant hash function} \itemso{EUROCRYPT, 165-182 (2006).} \itemcc{} \itemut{} \itemli{doi:10.1007/11761679\_11} \end