Reply to comment on Y-00 quantum secure communication protocol
| dc.creator | Hirota, Osamu | |
| dc.date | 2003-12-03 | |
| dc.date | 2004-03-05 | |
| dc.date.accessioned | 2026-07-07T06:08:29Z | |
| dc.date.available | 2026-07-07T06:08:29Z | |
| dc.description | In 2000, an attractive new quantum cryptography was discovered by H.P.Yuen, which can realize secure communication with high speeds and at long distance by conventional optical devices. Recently, a criticism of the Yuen protocol, so called Y-00, was made by Nishioka, and Imai group(Mitsubishi and University of Tokyo), and they claimed Y-00 is essentially a classical stream cipher. This paper shows that the claim is incorrect. In particular, it is shown that the relation $l_i=r_i\oplus \tilde{k}_i$, which is their basis for attack, has no essential role for any security analysis. In addition, we give a brief introduction of the general logic for the security of Y-00 as direct encryption and also for key generation. Several industries have started to make a test-bed of Y-00 for digital optical fiber highway, following Kumar's leading work. We hope that this discussion encourages experimental works which realize a secure communication against quantum computer and quantum attacks based on physical principle. | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0312029 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0312029 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/91646 | |
| dc.subject | Quantum Physics | |
| dc.title | Reply to comment on Y-00 quantum secure communication protocol | |
| dc.type | text |