| Paper Abstract and Keywords |
| Presentation |
2004-12-17 13:10
Time-Capsule Encryption
Maki Yoshida (Osaka Univ.), Shigeo Mitsunari (u10 Networks), Toru Fujiwara (Osaka Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
We have designed a new timed-release encryption, called time-capsule encryption, and implemented it. In our scheme, a time signal signed by a public agent announces a time, and a signed time signal is used as a decryption key. A signature scheme using a pairing map is the main building block. In this paper, we introduce a recovery signal which allows those who missed a signed time signal to recover the corresponding decryption key. To introduce such a recovery signal, we construct a new time-capsule encryption scheme using another signature scheme with a pairing map and extend the new scheme to include a recovery signal. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Timed-release encryption / time-capsule encryption / release time / time signal / signed time signal / pairing map / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 527, ISEC2004-98, pp. 1-5, Dec. 2004. |
| Paper # |
ISEC2004-98 |
| Date of Issue |
2004-12-10 (ISEC) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
ISEC |
| Conference Date |
2004-12-17 - 2004-12-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
ISEC |
| Conference Code |
2004-12-ISEC |
| Language |
English (Japanese title is available) |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Time-Capsule Encryption |
| Sub Title (in English) |
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| Keyword(1) |
Timed-release encryption |
| Keyword(2) |
time-capsule encryption |
| Keyword(3) |
release time |
| Keyword(4) |
time signal |
| Keyword(5) |
signed time signal |
| Keyword(6) |
pairing map |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Maki Yoshida |
| 1st Author's Affiliation |
Osaka University (Osaka Univ.) |
| 2nd Author's Name |
Shigeo Mitsunari |
| 2nd Author's Affiliation |
u10 Networks (u10 Networks) |
| 3rd Author's Name |
Toru Fujiwara |
| 3rd Author's Affiliation |
Osaka University (Osaka Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2004-12-17 13:10:00 |
| Presentation Time |
25 minutes |
| Registration for |
ISEC |
| Paper # |
ISEC2004-98 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.527 |
| Page |
pp.1-5 |
| #Pages |
5 |
| Date of Issue |
2004-12-10 (ISEC) |