Secret function sharing schernes and their applications to the oblivious transfer
Yohei Kawamoto, H. Yamamoto · 2003
Secret function sharing schemes (SFSS), .which are first studied in (l), are defined and analyzed information theoretically. They are also extended to ramp schemes in the same way as (2). Furthermore, it is shown that an unconditionally secure distributed oblivious transfer (OT) protocol is constructed by combining the SFSS with multi-groups secret sharing scheme (MG-SSS) (3) and the protocol is more robust against collusion attacks than that shown in (4).