| タイトル | Generalization and Extension of XEX* Mode |
|---|---|
| 著者 | 峯松 一彦 、松嶋 敏泰 |
| 年度 | 2008 |
| 形式 | 論文誌 |
| 分野 | 情報セキュリティ |
| 掲載雑誌名 | IEICE Trans. Fundamentals |
| 掲載号・ページ | vol.E92-A, no.2, pp.517-524 |
| 掲載年 | 2009 |
| 掲載月 | 2 |
| アブスト （日本語） |
査読：有 DOI：10.1587/transfun.E92.A.517 |
| アブスト （英語） |
This paper describes an extension of $\XEX$ mode proposed by Rogaway in 2004, which is a method to convert a block cipher, such as AES, into a tweakable block cipher, where encryptions of a tweakable block cipher require an additional public parameter called tweak. Our extension attaches an optional encryption function to the original $\XEX$ without degradation in efficiency and security. This function has some limitation but is slightly faster than the basic encryption by $\XEX$. We prove our scheme's security in a general form, where the offset function, a key component of our construction, is not restricted to the one used by $\XEX$. We also provide various applications of our result. |
| 備考 （日本語） |
3 |
| 備考 （英語） |
3 |
| 論文原稿 | |
| 発表資料 |
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