| Project/Area Number |
21860064
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Communication/Network engineering
|
|---|
| Research Institution | The University of Tokushima |
|---|
Principal Investigator |
WATANABE Shun The University of Tokushima, 大学院・ソシオテクノサイエンス研究部, 助教 (70546910)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,327,000 (Direct Cost: ¥1,790,000、Indirect Cost: ¥537,000)
Fiscal Year 2010: ¥1,014,000 (Direct Cost: ¥780,000、Indirect Cost: ¥234,000)
Fiscal Year 2009: ¥1,313,000 (Direct Cost: ¥1,010,000、Indirect Cost: ¥303,000)
|
|---|
| Keywords | 情報理論的暗号 / 情報理論 / 量子暗号 / セキュリテ / 盗聴通信路 |
|---|
| Research Abstract |
In this study, we investigated the efficiency and the security of information theoretic cryptography, and main results are summarized as follows. First, in the quantum key distribution protocols, we clarified the optimal polarization axis compensation method for the unital channel class. Second, we clarified that the key generation method widely used in literatures is not secure in the sense of the so-called strong security criterion. Third, in the secret key agreement from correlated Gaussian sources, we clarified the trade-off between the public communication rate and the key generation rate.
|
