Cryptanalysis of the Hillery-Bužek-Berthiaume quantum secret-sharing protocol
Cryptanalysis of the Hillery-Bužek-Berthiaume quantum secret-sharing protocol
The participant attack is the most serious threat for quantum secret-sharing protocols. We present a method to analyze the security of quantum secret-sharing protocols against this kind of attack taking the scheme of Hillery, Bu\ifmmode \check{z}\else \v{z}\fi{}ek, and Berthiaume (HBB) [Phys. Rev. A 59, 1829 (1999)] as an example. By …