Quantum key distribution in terms of the Greenberger-Horne-Zeilinger state: Multi-key generation
Abstract
In this paper, we develop, a quantum key distribution protocol based on the Greenberger-Horne-Zeilinger states (GHZs). The particles are exchanged among the users in blocks through two steps. In this protocol, for three-particle GHZs three keys can be simultaneously generated. The advantage of this is that the users can select the most suitable key for communication. The protocol can be generalized to N users to provide N keys. The protocol has two levels for checking the eavesdroppers. Moreover, we discuss the security of the protocol against different attacks.
- Publication:
-
Laser Physics
- Pub Date:
- May 2010
- DOI:
- 10.1134/S1054660X10090124
- arXiv:
- arXiv:0907.4912
- Bibcode:
- 2010LaPhy..20.1210E
- Keywords:
-
- Quantum Physics
- E-Print:
- 10 Page, no figures. Comments are most welcome