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b10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/4463
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| タイトル: | Intrusion-Resilient Public-Key Encryption |
| 著者: | Dodis, Yevgeniy
Franklin, Matt
Katz, Jonathan
Miyaji, Atsuko
Yung, Moti |
| 発行日: | 2003 |
| 出版者: | Springer |
| 誌名: | Lecture Notes in Computer Science |
| 巻: | 2612/2003 |
| 開始ページ: | 19 |
| 終了ページ: | 32 |
| DOI: | 10.1007/3-540-36563-X |
| 抄録: | Exposure of secret keys seems to be inevitable, and may in practice represent the most likely point of failure in a cryptographic system. Recently, the notion of intrusion-resilience [17] (which extends both the notions of forward security [3], [5] and key insulation [11]) was proposed as a means of mitigating the harmful effects that key exposure can have. In this model, time is divided into distinct periods; the public key remains fixed throughout the lifetime of the protocol but the secret key is periodically updated. Secret information is stored by both a user and a base; the user performs all cryptographic operations during a given time period, while the base helps the user periodically update his key. Intrusion-resilient schemes remain secure in the face of multiple compromises of both the user and the base, as long as they are not both compromised simultaneously. Furthermore, in case the user and base are compromised simultaneously, prior time periods remain secure (as in forward-secure schemes). Intrusion-resilient signature schemes have been previously constructed [17], [15]. Here, we give the first construction of an intrusion-resilient public-key encryption scheme, based on the recently-constructed forwardsecure encryption scheme of [8]. We also consider generic transformations for securing intrusion-resilient encryption schemes against chosenciphertext attacks. |
| Rights: | This is the author-created version of Springer, Yevgeniy Dodis, Matt Franklin, Jonathan Katz, Atsuko Miyaji, Moti Yung, Lecture Notes in Computer Science, 2612/2003, 2003, 19-32.The original publication is available at www.springerlink.com, http://www.springerlink.com/content/nnj906e50cbju95b |
| URI: | http://hdl.handle.net/10119/4463 |
| 資料タイプ: | author |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
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記述 |
サイズ | 形式 |
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| 73-28.pdf | | 253Kb | Adobe PDF | 見る/開く |
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