Separating invertible key derivations from non-invertible ones: sequential indifferentiability of 3-round even-mansour
文献类型：期刊论文
| 作者 | Guo, Chun1,2; Lin, Dongdai1 |
| 刊名 | Designs codes and cryptography
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 81期号:1页码:109-129 |
| 关键词 | Blockcipher Ideal cipher Sequential indifferentiability Correlation intractability Key-alternating cipher Iterated even-mansour cipher |
| ISSN号 | 0925-1022 |
| DOI | 10.1007/s10623-015-0132-0 |
| 通讯作者 | Guo, chun(guochun@iie.ac.cn) |
| 英文摘要 | Iterated even-mansour (iem) scheme consists of a small number r of fixed n-bit permutations separated by round-key additions. when the permutations are public, independent and random, and a common round key derived from the master key by an idealized non-invertible key derivation (kd) function is used, 5 rounds was proved sufficient to obtain (full) indifferentiability from ideal ciphers by andreeva et al. (crypto 2013). the kd can be a random oracle, or a davies-meyer construction from a random permutation. this work considers such iem with non-invertible kd in the sequential indifferentiability model of mandal et al. (tcc 2012). as results, this work shows that in both cases mentioned before, 3 rounds yields sequential indifferentiability from ideal ciphers. as andreeva et al. has proved 3-round iem with idealized invertible key derivations not sequentially indifferentiable (by exhibiting an attack), a definitive separation between iem with invertible key derivations and iem with non-invertible key derivations is established. this is the most important implication of the results in this work. |
| WOS关键词 | RANDOM ORACLE METHODOLOGY ; ALTERNATING CIPHERS ; CONSTRUCTION ; SECURITY ; ATTACKS |
| WOS研究方向 | Computer Science ; Mathematics |
| WOS类目 | Computer Science, Theory & Methods ; Mathematics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000381138500007 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374361 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Guo, Chun |
| 作者单位 | 1.Chinese Acad Sci, Inst Informat Engn, State Key Lab Informat Secur, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Chun,Lin, Dongdai. Separating invertible key derivations from non-invertible ones: sequential indifferentiability of 3-round even-mansour[J]. Designs codes and cryptography,2016,81(1):109-129. |
| APA | Guo, Chun,&Lin, Dongdai.(2016).Separating invertible key derivations from non-invertible ones: sequential indifferentiability of 3-round even-mansour.Designs codes and cryptography,81(1),109-129. |
| MLA | Guo, Chun,et al."Separating invertible key derivations from non-invertible ones: sequential indifferentiability of 3-round even-mansour".Designs codes and cryptography 81.1(2016):109-129. |
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来源：中国科学院大学
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