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請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/12210
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| 題名: | A New Key-insulated Signature and Its Novel Application |
| 作者: | Yu, Ching-Wen;Tseng, Yuh-Min;Wu, Tsu-Yang |
| 貢獻者: | 數學系 |
| 關鍵詞: | Key-insulated;Signature;ID-based;Bilinear pairings;Proxy signature |
| 日期: | 2010-05
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| 上傳時間: | 2012-07-03T03:47:01Z
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| 出版者: | 中華民國資訊安全學會 |
| 摘要: | Recently, the notion of the key-insulated public- key system has been suggested to protect the security of users' private keys. A general idea of this system is changing the user's private key along with the time, but the user's public key remains unchanged. In this paper, we propose a new identity (ID)-based key-insulated signature scheme from bilinear pairings. As compared with the recently proposed ID-based key-insulated signature schemes, our proposed scheme has better performance in the batch verifying phase. For security analysis, our scheme is a provably secure key-insulated signature scheme in the random oracle model and under the computational Diffie-Hellman assumption. Meanwhile, to demonstrate the additional advantage of a key-insulated signature, we present a novel application based on the proposed scheme, called full delegation ID-based proxy signature scheme with time restriction. To our best knowledge, no such a proxy signature scheme is proposed until now. |
| 關聯: | The 20th Cryptology and Information Security 2010 (CISC2010), : 75-80 |
| 顯示於類別: | [數學系] 會議論文
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