抄録
A proof of the unconditional security of the B92 protocol for qubit channels, applicable to any amount of nonorthogonality α is given. It is shown that the B92 protocol is, from Eve's point of view, identical to an EDP initiated by a local filtering. The security is then established by proving that the EDP is almost always successful. A method to estimate an error rate by measuring randomly chosen samples on a different basis, which plays an important role in the proof is developed.
| 本文言語 | 英語 |
|---|---|
| 論文番号 | 167904 |
| ページ（範囲） | 167904/1-167904/4 |
| ジャーナル | Physical Review Letters |
| 巻 | 90 |
| 号 | 16 |
| 出版ステータス | 出版済み - 2003/04/25 |
ASJC Scopus 主題領域
- 物理学および天文学一般