| 标准模型中基于身份的匿名加密方案 |
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| 引用本文： | 任艳丽,谷大武,王朔中,张新鹏. 标准模型中基于身份的匿名加密方案[J]. 中国科学技术大学学报, 2012, 42(4): 296-301 |
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| 作者姓名： | 任艳丽 谷大武 王朔中 张新鹏 |
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| 作者单位： | 1. 上海大学通信与信息工程学院,上海,200072
2. 上海交通大学,上海,300240 |
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| 基金项目： | 国家自然科学基金，上海市科委重大项目，中国博士后科学基金，上海市博士后资助计划项目 |
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| 摘 要： | 现有基于身份的匿名加密方案在标准模型下的selective-ID模型中可证安全,或基于复杂的困难问题假设可证安全.使用阶为合数的双线性群,基于BDH(bilinear Diffie-Hellman)假设,提出新的基于身份匿名加密方案,在标准模型中是ANON-IND-ID-CPA安全的,仅需2次双线性对计算.与同类方案相比,该方案同时具备高的安全性与计算效率.
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| 关 键 词： | 匿名 基于身份加密 标准模型 BDH假设 |
Anonymous identity-based encryption scheme without random oracles |
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| REN Yanli , GU Dawu , WANG Shuozhong , ZHANG Xinpeng. Anonymous identity-based encryption scheme without random oracles[J]. Journal of University of Science and Technology of China, 2012, 42(4): 296-301 |
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| Authors: | REN Yanli GU Dawu WANG Shuozhong ZHANG Xinpeng |
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| Affiliation: | 1(1.School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China;2.Department of Computer Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China) |
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| Abstract: | The anonymous identity-based encryption(IBE) schemes are currently only selective-ID secure without random oracles or provably secure under a complex assumption.An anonymous IBE scheme based on decisional bilinear Diffie-Hellman(BDH) assumption in a group of composite order was proposed,which is ANON-IND-ID-CPA secure without random oracles and only needs two bilinear pairing computations.This scheme is more secure and efficient than the existing ones. |
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| Keywords: | anonymous identity-based encryption without random oracles decisional bilinear Diffie-Hellman assumption |
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