Efficient quantum direct communication with authentication
arXiv:0711.3502 · doi:10.1088/0256-307X/25/7/007
Abstract
Two protocols of quantum direct communication with authentication [Phys. Rev. A 73, 042305(2006)] were recently indicated to be insecure against the authenticator Trent's attacks [Phys. Rev. A 75, 026301(2007)]. We present two efficient protocols by using four Pauli operations, which are secure against inner Trent's attacks as well as outer Eve's attacks. Finally, we generalize them to multiparty quantum direction communication.
4 pages, 4 tables
References in corpus (7)
- Secure Direct Communication with a Quantum One-Time-Pad
- Eavesdropping on the "ping-pong" type quantum communication protocols with invisible photon
- Multi-step quantum secure direct communication using multi-particle Green-Horne-Zeilinger state
- Quantum Direct Communication with Authentication
- Deterministic secure direct communication using GHZ states and swapping quantum entanglement
- Quantum secure direct communication based on order rearrangement of single photons
- Improving the security of quantum direct communication with authentication