A quantum protocol for cheat-sensitive weak coin flipping
01 January 2002
We present a quantum protocol for the task of weak coin ipping. We find that for one choice of parameters in the protocol, the maximum probability of a dishonest party winning the coin ip if the other party is honest is 1/p2. We also examine the cheat- sensitivity of the protocol. In particular, we calculate the maximum probability of winning that a dishonest party can achieve without running any risk of being caught cheating.