Phys. Rev. A 64, 024301 (2001) [3 pages]

Addendum to “Quantum key distribution without alternative measurements”

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Adán Cabello *
Departamento de Física Aplicada II, Universidad de Sevilla, 41012 Sevilla, Spain

Received 26 October 2000; published 26 June 2001

Recently, Zhang, Li, and Guo have proposed a particular eavesdropping attack [Phys. Rev. A 63, 036301 (2001)] that shows that my quantum key distribution protocol based on entanglement swapping [Phys. Rev. A 61, 052312 (2000)] is insecure. However, security against this attack can be attained with a simple modification. In addition, a simpler version of the protocol using four qubits is introduced.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.64.024301
DOI: 10.1103/PhysRevA.64.024301
PACS: 03.67.Dd, 03.67.Hk

* Electronic address: adan@cica.es

See Also

Original: Adán Cabello, Quantum key distribution without alternative measurements, Phys. Rev. A 61, 052312 (2000)

Comment: Yong-Sheng Zhang, Chuan-Feng Li, and Guang-Can Guo, Comment on “Quantum key distribution without alternative measurements” [Phys. Rev. A 61, 052312 (2000)], Phys. Rev. A 63, 036301 (2001)

Reply: Adán Cabello, Reply to “Comment on ‘Quantum key distribution without alternative measurements’ ” [Phys. Rev. A 63, 036301 (2001)], Phys. Rev. A 63, 036302 (2001)

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