TY - JOUR
T1 - Comment on
T2 - 'How much security does Y-00 protocol provide us?' [Phys. Lett. A 327 (2004) 28]
AU - Yuen, Horace P.
AU - Kumar, Prem
AU - Corndorf, Eric
AU - Nair, Ranjith
N1 - Funding Information:
We would like to thank O. Hirota, W.Y. Hwang, and M. Ozawa for useful discussions. This work has been supported by DARPA under grant F30602-01-2-0528.
PY - 2005/10/10
Y1 - 2005/10/10
N2 - It is claimed by T. Nishioka et al. in [T. Nishioka, T. Hasegawa, H. Ishiziuka, K. Imafuku, H. Imai, Phys. Lett. A 327 (2004) 28-32] that the security of Y-00 is equivalent to that of a classical stream cipher. In this Letter it is shown that the claim is false in either the use of Y-00 for direct encryption or key generation, in all the parameter ranges it is supposed to operate including those of the experiments reported thus far. The security of Y-00 type protocols is clarified.
AB - It is claimed by T. Nishioka et al. in [T. Nishioka, T. Hasegawa, H. Ishiziuka, K. Imafuku, H. Imai, Phys. Lett. A 327 (2004) 28-32] that the security of Y-00 is equivalent to that of a classical stream cipher. In this Letter it is shown that the claim is false in either the use of Y-00 for direct encryption or key generation, in all the parameter ranges it is supposed to operate including those of the experiments reported thus far. The security of Y-00 type protocols is clarified.
KW - Quantum cryptography
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U2 - 10.1016/j.physleta.2005.08.022
DO - 10.1016/j.physleta.2005.08.022
M3 - Comment/debate
AN - SCOPUS:24944433126
SN - 0375-9601
VL - 346
SP - 1
EP - 6
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1-3
ER -