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Oblivious Transfer Is Symmetric
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Abstract: | We show that oblivious transfer of bits from $A$ to $B$ can be obtained from a single instance of the same primitive from $B$ to $A$. Our reduction is perfect and shows that oblivious transfer is in fact a symmetric functionality. This solves an open problem posed by Cr\'epeau and S\'antha in 1991. |
BibTeX
@misc{eprint-2004-12300, title={Oblivious Transfer Is Symmetric}, booktitle={IACR Eprint archive}, keywords={foundations / oblivious transfer}, url={http://eprint.iacr.org/2004/336}, note={Eurocrypt '06 wjuerg@inf.ethz.ch 13202 received 1 Dec 2004, last revised 23 Feb 2006}, author={Stefan Wolf and J\"urg Wullschleger}, year=2004 }