More Efficient Oblivious Transfer Extensions

  title={More Efficient Oblivious Transfer Extensions},
  author={Gilad Asharov and Yehuda Lindell and Thomas Schneider and Michael Zohner},
  journal={Journal of Cryptology},
Oblivious transfer (OT) is one of the most fundamental primitives in cryptography and is widely used in protocols for secure two-party and multi-party computation. As secure computation becomes more practical, the need for practical large-scale OT protocols is becoming more evident. OT extensions are protocols that enable a relatively small number of “base-OTs” to be utilized to compute a very large number of OTs at low cost. In the semi-honest setting, Ishai et al. (Advances in cryptology… CONTINUE READING


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