| 胡学先,张振峰,刘文芬.标准模型下通用可组合的口令认证密钥交换协议.软件学报,2011,22(11):2820-2832 |
| 标准模型下通用可组合的口令认证密钥交换协议 |
| Universal Composable Password Authenticated Key Exchange Protocol in the Standard Model |
| 投稿时间：2010-04-26 修订日期：2010-06-29 |
| DOI：10.3724/SP.J.1001.2011.03910 |
| 中文关键词: 口令认证 密钥交换协议 通用可组合 标准模型 |
| 英文关键词:password authenticated key exchange protocol universal composable standard model |
| 基金项目:国家自然科学基金(60873261); 国家高技术研究发展计划(863)(2009AA01Z417); 国家科技支撑计划(2008BAH37B02-2) |
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| 中文摘要: |
| 通过构造不可延展的、可提取的且是弱模拟可靠的陷门承诺体制,以及相应的平滑投射Hash 函数簇,设计了一个高效的通用可组合(universal composable,简称UC)安全的两方口令认证密钥交换(password authenticated key exchange,简称PAKE)协议,并在静态腐化模型下给出了严格的安全性证明.该协议使得PAKE 协议在UC框架下达到了最优的两轮.与已有的协议相比,该协议避免了零知识证明协议的使用,在保持计算复杂度相当的前提下有效地提高了通信效率. |
| 英文摘要: |
| Through constructing and utilizing non-malleable, extractable, and weak simulation-sound trapdoor commitment schemes and corresponding smooth projective hash function familes, this paper proposes an efficient two-party password authenticated key exchange (PAKE) protocol within the universal composable (UC) framework, which is the optimal two-round PAKE protocol in this setting. Rigorous security proofs based on standard assumptions in the presence of static corruption adversary are then given out. Comparisons with previously proposed protocols show that, this protocol avoids the use of zero-knowledge protocols, and achieves a higher performance in terms of communication efficiency while attaining a comparable computational complexity. |
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