How to Simultaneously Exchange a Secret Bit by Flipping a Symmetrically-Biased Coin

How to Simultaneously Exchange a Secret Bit by Flipping a Symmetrically-Biased Coin Michael Luby Silvio Micali Charles Rackoff 11-21 conf/focs/FOCS24 1983 FOCS db/conf/focs/focs83.html#LubyMR83