| Paper Abstract and Keywords |
| Presentation |
2005-07-22 13:50
Improvement of the Security against Photon Number Splitting Attacks
Yoshifumi Nishida, Hidenori Kuwakado, Masakatu Morii (Kobe Univ.), Hatsukazu Tanaka (Kobe Institute of Computing) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Since it is difficult for practical optical devices to output a single-photon pulse, a weak laser pulse is often substituted for it in implementations of a single-photon quantum key distribution protocol. It should be noted that the use of the weak laser pulse allows an adversary to eavesdrop communications by photon number splitting attacks. To improve the security against photon number splitting attacks, we propose a quantum key distribution protocol such that the probability that a sender chooses a base from two bases is not 1/2. It follows that the adversary can guess the chosen base with probability greater than 1/2. Hence, the choice with the unequal probability has not been used in single-photon quantum key distribution protocols. However, we show that the choice with the unequal probability is effective in improving the security against photon number splitting attacks and the guess attack in terms of the amount of transmitted bits for generating the key. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
photon number splitting attacks / quantum key distribution / weak laser pulse / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 194, ISEC2005-56, pp. 93-99, July 2005. |
| Paper # |
ISEC2005-56 |
| Date of Issue |
2005-07-15 (ISEC) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
ISEC IPSJ-CSEC SITE |
| Conference Date |
2005-07-21 - 2005-07-22 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Iwate Prefectural University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
ISEC |
| Conference Code |
2005-07-ISEC-IPSJ-CSEC-SITE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Improvement of the Security against Photon Number Splitting Attacks |
| Sub Title (in English) |
|
| Keyword(1) |
photon number splitting attacks |
| Keyword(2) |
quantum key distribution |
| Keyword(3) |
weak laser pulse |
| Keyword(4) |
|
| Keyword(5) |
|
| Keyword(6) |
|
| Keyword(7) |
|
| Keyword(8) |
|
| 1st Author's Name |
Yoshifumi Nishida |
| 1st Author's Affiliation |
Kobe University (Kobe Univ.) |
| 2nd Author's Name |
Hidenori Kuwakado |
| 2nd Author's Affiliation |
Kobe University (Kobe Univ.) |
| 3rd Author's Name |
Masakatu Morii |
| 3rd Author's Affiliation |
Kobe University (Kobe Univ.) |
| 4th Author's Name |
Hatsukazu Tanaka |
| 4th Author's Affiliation |
Kobe Institute of Computing (Kobe Institute of Computing) |
| 5th Author's Name |
|
| 5th Author's Affiliation |
() |
| 6th Author's Name |
|
| 6th Author's Affiliation |
() |
| 7th Author's Name |
|
| 7th Author's Affiliation |
() |
| 8th Author's Name |
|
| 8th Author's Affiliation |
() |
| 9th Author's Name |
|
| 9th Author's Affiliation |
() |
| 10th Author's Name |
|
| 10th Author's Affiliation |
() |
| 11th Author's Name |
|
| 11th Author's Affiliation |
() |
| 12th Author's Name |
|
| 12th Author's Affiliation |
() |
| 13th Author's Name |
|
| 13th Author's Affiliation |
() |
| 14th Author's Name |
|
| 14th Author's Affiliation |
() |
| 15th Author's Name |
|
| 15th Author's Affiliation |
() |
| 16th Author's Name |
|
| 16th Author's Affiliation |
() |
| 17th Author's Name |
|
| 17th Author's Affiliation |
() |
| 18th Author's Name |
|
| 18th Author's Affiliation |
() |
| 19th Author's Name |
|
| 19th Author's Affiliation |
() |
| 20th Author's Name |
|
| 20th Author's Affiliation |
() |
| Speaker |
Author-1 |
| Date Time |
2005-07-22 13:50:00 |
| Presentation Time |
25 minutes |
| Registration for |
ISEC |
| Paper # |
ISEC2005-56 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.194 |
| Page |
pp.93-99 |
| #Pages |
7 |
| Date of Issue |
2005-07-15 (ISEC) |