The ring-arrangement quantum secret sharing protocol in the paper [K. Brádler and M.
Dušek (2004) J. Opt. B: Quantum Semiclass. Opt. 6 63] is analyzed and it is shown that this …

As a new model for signing quantum messages, arbitrated quantum signature (AQS) has
recently received a lot of attention. In this paper we study the cryptanalysis of previous AQS …

Recently, a quantum private comparison (QPC) protocol with a dishonest third party
(TP)(Yang et al. in Quantum Inf Process, 2012. doi: 10.1007/s11128-012-0433-4) was …

Two conditions must be satisfied in a secure quantum key agreement (QKA) protocol:(1)
outside eavesdroppers cannot gain the generated key without introducing any error;(2) the …

We analyze the security of multiparty controlled quantum secure direct communication using
Greenberger–Horne–Zeilinger (GHZ) state. It is shown that the receiver, using a special …

In many circumstances, a shared key is needed to realize secure communication. Based on
quantum mechanics principles, quantum key agreement (QKA) is a good method to …

From the perspective of information theory and cryptography, the security of two quantum
dialogue protocols and a bidirectional quantum secure direct communication (QSDC) …

In this paper, we propose a novel secure multi-party quantum summation protocol based on
quantum Fourier transform, where the traveling particles are transmitted in a tree-type mode …

In a recent article [Gao et al., Sci. China-Phys. Mech. Astron. 63, 120311 (2020)], a two-
receiver measurement-device-independent quantum secret sharing (MDI-QSS) protocol was …

Cryptanalysis is an important branch in the study of cryptography, including both the
classical cryptography and the quantum one. In this paper we analyze the security of two …