| Paper Abstract and Keywords |
| Presentation |
2004-11-09 10:15
Transformation-Free Proxy Cryptosystems with Limited Authorization
Lihua Wang (Tsukuba Univ.), Zhenfu Cao (Shanghai Jiao Tong Univ.), Eiji Okamoto, Ying Miao, Takeshi Okamoto (Tsukuba Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this paper transformation-free proxy cryptosystems with limited
authorization (TFP systems) are studied. The TFP system is a
modification of the proxy cryptosystem introduced by Mambo and
Okamoto \cite{MO97} in which a ciphertext transformation by the
original decryptor is necessary. The TFP system allows proxy
decryptor to do decryption without any ciphertext transformation,
so that it can release the original decryptor more efficiently
from a large amount of decrypting operations. An active
identity-based and a directory-based TFP systems based on pairings
are proposed. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
proxy cryptosystem / pairing / transformation-free / limited authorization / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 422, ISEC2004-88, pp. 23-28, Nov. 2004. |
| Paper # |
ISEC2004-88 |
| Date of Issue |
2004-11-02 (ISEC, OIS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
ISEC LOIS |
| Conference Date |
2004-11-08 - 2004-11-09 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Osaka Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
ISEC |
| Conference Code |
2004-11-ISEC-OIS |
| Language |
English (Japanese title is available) |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Transformation-Free Proxy Cryptosystems with Limited Authorization |
| Sub Title (in English) |
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| Keyword(1) |
proxy cryptosystem |
| Keyword(2) |
pairing |
| Keyword(3) |
transformation-free |
| Keyword(4) |
limited authorization |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Lihua Wang |
| 1st Author's Affiliation |
University of Tsukuba (Tsukuba Univ.) |
| 2nd Author's Name |
Zhenfu Cao |
| 2nd Author's Affiliation |
Shanghai Jiao Tong University (Shanghai Jiao Tong Univ.) |
| 3rd Author's Name |
Eiji Okamoto |
| 3rd Author's Affiliation |
University of Tsukuba (Tsukuba Univ.) |
| 4th Author's Name |
Ying Miao |
| 4th Author's Affiliation |
University of Tsukuba (Tsukuba Univ.) |
| 5th Author's Name |
Takeshi Okamoto |
| 5th Author's Affiliation |
University of Tsukuba (Tsukuba Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2004-11-09 10:15:00 |
| Presentation Time |
25 minutes |
| Registration for |
ISEC |
| Paper # |
ISEC2004-88, OIS2004-55 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.422(ISEC), no.424(OIS) |
| Page |
pp.23-28 |
| #Pages |
6 |
| Date of Issue |
2004-11-02 (ISEC, OIS) |