Comment on ``Quantum secret sharing based on reusable Greenberger-Horne-Zeilinger states as secure carriers''
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.
- Publication:
-
Physical Review A
- Pub Date:
- September 2005
- DOI:
- 10.1103/PhysRevA.72.036302
- arXiv:
- arXiv:quant-ph/0505052
- Bibcode:
- 2005PhRvA..72c6302G
- Keywords:
-
- 03.67.Dd;
- 03.65.Ud;
- Quantum cryptography;
- Entanglement and quantum nonlocality;
- Quantum Physics
- E-Print:
- 2 pages, no figures