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Fast Quantum Byzantine Agreement: Difference between revisions
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* Each player transmits its current decision bit to every other player. If a player receives the same bit value from more than 2/3 of the players (including his own), then it sets his decision bit to this majority bit value. Otherwise, that player initiates a Quantum Oblivious Common Coin subroutine with all other players and sets his decision bit to the outcome of this subroutine. | * Each player transmits its current decision bit to every other player. If a player receives the same bit value from more than 2/3 of the players (including his own), then it sets his decision bit to this majority bit value. Otherwise, that player initiates a Quantum Oblivious Common Coin subroutine with all other players and sets his decision bit to the outcome of this subroutine. | ||
* Then each player sequentially executes two classical subroutines to bias the decision value towards <math>0</math> or <math>1</math> respectively. These subroutines guarantee that if the non-faulty players are in agreement, then they will terminate and successfully output the correct agreement value | * Then each player sequentially executes two classical subroutines to bias the decision value towards <math>0</math> or <math>1</math> respectively. These subroutines guarantee that if the non-faulty players are in agreement, then they will terminate and successfully output the correct agreement value. | ||
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