Title :
On “controlled quantum teleportation and secure direct communication”
Author :
Shih-Hung Kao ; Tzonelih Hwang
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
Based on the controlled quantum teleportation protocol, a controlled quantum secure direct communication scheme (CQSDC) protocol, which transmits a one-bit message via the Greenberger-Horne-Zeilinger entangled state, is presented by Gao et al. in [Chinese Phys. Vol. 14 (2005), No. 5, p. 893]. However, through this article we want to enlighten of the fact that, due to a flaw in the control function, receiver can reveal the whole secret message without help from the controller.
Keywords :
quantum communication; quantum entanglement; teleportation; Greenberger-Horne-Zeilinger entangled state; controlled quantum secure direct communication scheme protocol; controlled quantum teleportation protocol; secret message; Atmospheric measurements; Particle measurements; Protocols; Quantum entanglement; Receivers; Security; Teleportation; Quantum Communication; Quantum Cryptography; Quantum Teleportation;
Conference_Titel :
Information Security and Intelligence Control (ISIC), 2012 International Conference on
Conference_Location :
Yunlin
Print_ISBN :
978-1-4673-2587-5
DOI :
10.1109/ISIC.2012.6449727
