Reply to: "Comment on: 'How much security does Y-00 protocol provide us?"

被引：12

作者：

Nishioka, T

Hasegawa, T

Ishizuka, H

Imafuku, K

Imai, H

机构：

[1] Mitsubishi Electr Corp, Informat Technol R&D Ctr, Kanagawa 2478501, Japan

[2] Natl Inst Adv Ind Sci & Technol, Res Ctr Informat Secur, Chiyoda Ku, Tokyo 1010021, Japan

[3] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

PHYSICS LETTERS A | 2005年 / 346卷 / 1-3期

关键词：

quantum cryptography; Y-00; protocol; classical stream cipher;

D O I：

10.1016/j.physleta.2005.08.023

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a recent paper titled "Comment on: 'How much security does the Y-00 protocol provide us?"' [H.P. Yuen, P. Kumar, E. Corndorf, Phys. Lett. A 346 (2005) 1-61, the authors critically examine our idea [T. Nishioka, T. Hasegawa, H. Ishizuka, K. Imafuku, H. Imai, Phys. Lett. A 327 (2004) 28-32] that the Y-00 protocol is essentially as secure as classical stream ciphers. We clarify our idea in more detail than our previous paper and show that the Y-00 protocol can be considered as a classical non-random stream cipher, as was claimed in IT. Nishioka, T. Hasegawa, H. Ishizuka, K. Imafuku, H. Imai, Phys. Lett. A 327 (2004) 28-32]. We also provide an analysis on key generation with the improved Y-00 protocol, which is implemented with weak coherent states. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：7 / 16

页数：10

共 6 条

[1] Secure communication using mesoscopic coherent states [J].