| 講演抄録/キーワード |
| 講演名 |
2007-05-18 13:40
Efficient ID-Based Signature without Random Oracle ○Jiageng Chen・Astuko Miyaji(JAIST) 技報オンラインサービス実施中(通信ソサイエティのみ) |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
ID-Based signature scheme is a kind of public key signature scheme which uses the user's identity as the public key. Compared to the PKI system, no certificate is needed in the ID-Based cyrptosystem. In this paper, we proposed an identity-based signature scheme. We give the security proof under the q-SDH assumption without using random oracle model. Our security model is based on the generalization of selective ID modelin [6]. Our scheme is efficient in computation cost compared to [3] and we have a relatively tight security reduction under our security model. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
ID-Based signature / random oracle / q-SDH / existential unforgeability / / / / |
| 文献情報 |
信学技報, vol. 107, no. 44, ISEC2007-8, pp. 53-56, 2007年5月. |
| 資料番号 |
ISEC2007-8 |
|