Cryptanalysis of a multi-party quantum key agreement protocol with single particles
arXiv:1308.2777 · doi:10.1007/s11128-014-0758-2
Abstract
Recently, Sun et al. [Quant Inf Proc DOI: 10.1007/s11128-013-0569-x] presented an efficient multi-party quantum key agreement (QKA) protocol by employing single particles and unitary operations. The aim of this protocol is to fairly and securely negotiate a secret session key among parties with a high qubit efficiency. In addition, the authors claimed that no participant can learn anything more than his/her prescribed output in this protocol, i.e., the sub-secret keys of the participants can be kept secret during the protocol. However, here we points out that the sub-secret of a participant in Sun et al.'s protocol can be eavesdropped by the two participants next to him/her. In addition, a certain number of dishonest participants can fully determine the final shared key in this protocol. Finally, we discuss the factors that should be considered when designing a really fair and secure QKA protocol.
7 pages
References in corpus (1)
Cited by in corpus (11)
- Dynamical Topological Order Parameters far from Equilibrium
- Orthogonal-state-based protocols of quantum key agreement
- Secure multi-party quantum summation based on quantum Fourier transform
- Multi-party quantum key agreement protocol with authentication
- High-efficiency three-party quantum key agreement protocol with quantum dense coding and Bell states
- Multiparty quantum key agreement protocol secure against collusion attacks
- Collective attack free controlled quantum key agreement without quantum memory
- Comment on "Quantum key agreement protocol"
- Collusive Attacks to "Circle-Type" Multi-party Quantum Key Agreement Protocols
- Symbolic Abstractions for Quantum Protocol Verification
- Cryptanalysis and improvement of a quantum-communication-based online shopping mechanism