Two-round UC-secure OT ⇒ Two-round OT

Fully-black-box reduction · standard model · folklore · security loss: none

Statement

A two-message protocol that UC-realizes ${\mathcal{F}}_{\mathrm{OT}}$ in the common reference string model (two-round UC-secure OT) is a two-message semi-honest OT with the same reference string (two-round OT), by the argument of UC-secure OT ⇒ OT — folklore.