Abstract
In a recent paper [S. Bagherinezhad and V. Karimipour, Phys. Rev. A 67, 044302 (2003)], a quantum secret sharing protocol based on reusable Greenberger-Horne-Zeilinger states was proposed. However, in this Comment, it is shown that this protocol is insecure if Eve employs a special strategy to attack.
- Received 23 March 2005
DOI:https://doi.org/10.1103/PhysRevA.72.036302
©2005 American Physical Society
