| Presentation | 2003/3/20 Notes on ID based Cryptosystems with Pairing over Elliptic Curve Ryuichi SAKAI, Masao KASAHARA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The pairings over elliptic curves are applied for realizing the secure ID based cryptosystems that can be invulnerable to the collusion attacks. The computation of the pairing are are necessary for the cryptosystems, though the computation of the pairing requires high cost compared with the computation cost for the power operation over the finite fields or over the elliptic curve when the parameters are securely to be provided. In this paper we propose an efficient method for a class of ID based cryptosystems which have been proposed by the present authors. The proposed method is able to reduce the number of the computations for the pairing for verifying the ID based signature and also for decoding the ID based authenticated public key cryptosystems, bye a factor of 2. Moreover we propose the ID based public key cryptosystems with signature and the ID based public key cryptosystems having the multiple centers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | elliptic curve / Weil pairing / Tate pairing / public key cryptography / signature |
| Paper # | IT2002-88,ISEC2002-146,SST2002-194,ITS2002-171 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2003/3/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Notes on ID based Cryptosystems with Pairing over Elliptic Curve |
| Sub Title (in English) | |
| Keyword(1) | elliptic curve |
| Keyword(2) | Weil pairing |
| Keyword(3) | Tate pairing |
| Keyword(4) | public key cryptography |
| Keyword(5) | signature |
| 1st Author's Name | Ryuichi SAKAI |
| 1st Author's Affiliation | Faculty of Engineering, Osaka Electro-Communication Univerisity() |
| 2nd Author's Name | Masao KASAHARA |
| 2nd Author's Affiliation | Faculty of Informatics, Osaka Gakuin University |
| Date | 2003/3/20 |
| Paper # | IT2002-88,ISEC2002-146,SST2002-194,ITS2002-171 |
| Volume (vol) | vol.102 |
| Number (no) | 744 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |