Thank you for an interesting lecture. But I have a question. Why we do need oblivious transfer? Why first party should not send two keys corresponding to 1 and 0 entry of the second party and also send which one corresponds to 1 and which one to 0. Then the second party may choose the right key without revealing to the first party its choice. At the meantime the second party cannot reveal the choice of the first party. I will appreciate your explanation.
