Reexamining the security of the improved quantum secret sharing scheme

Individual Attack on the Improved Multiparty Quantum Secret Sharing Protocol

“…In the end, it is worth stressing that our individual attack is proposed by employing the Bell state comparison law [31]. This law has been recently applied in the designing of several attack strategies [28][29][30].…”

“…Most of people focused on the presentation of new QSS protocols. Also a small part of people [21][22][23][24][25][26][27][28][29][30] focused on that the securities of some previous QSS protocols are reexamined and the security leaks are pointed out. Indeed, the latter is also a studying point on QSS.…”

Eavesdropping on the improved three-party quantum secret sharing protocol

“…Obviously, the trait of this attack is that the Bell state comparison and the entanglement swapping are employed. By the way, the Bell state comparison [26] has been also used in the proposed attack strategy [25]. In addition, after giving this attack, we further modify Lin et al .…”

Multiparty quantum secret sharing with the pure entangled two-photon states

“…Afterward, QSS had attracted widespread attention and there were a lot of studies focused on QSS in both the theoretical [4][5][6][7][8] and experimental [9,10] aspects. Generally speaking, QSS concentrates mainly on two kinds of research, one only deals with the QSS of classical information [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], in which a classical secret is shared among all participants based on quantum mechanics, and another with the QSS of quantum information [26][27][28][29][30][31][32], in which the secret is an arbitrary unknown quantum state. In this paper, we mainly focus on the former.…”

“…Almost all the existing QSS schemes utilize either the ideal single photons [11,13,14,18] or the maximally entangled quantum states [12,[15][16][17][19][20][21][22][23][24] as the quantum resources. And most existing schemes with the ideal single photons are the QSS variants of the traditional BB84 QKD protocol, and look more practical than entanglement-based protocols.…”