| 格上可撤销的基于身份的适应性安全的加密方案 |
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| 引用本文： | 张彦华,胡予濮,江明明,来齐齐.格上可撤销的基于身份的适应性安全的加密方案[J].电子与信息学报,2015,37(2):423-428. |
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| 作者姓名： | 张彦华 胡予濮 江明明 来齐齐 |
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| 作者单位： | 西安电子科技大学综合业务网理论与关键技术国家重点实验室西安 710071 |
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| 基金项目： | 国家自然科学基金(61173151, 61173152)资助课题 |
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| 摘 要： | 用户撤销是基于身份的加密(IBE)方案在实际应用中所必须解决的问题。Chen等人在ACISP 2012上给出了第1个格上可撤销的基于身份的加密(RIBE)方案，但其只能达到选择性安全。利用Agrawal等人在欧密2010上给出的IBE方案，该文构造出一个格上适应性安全的RIBE方案，从而解决了Chen等人提出的公开问题；进一步指出利用Singh等人在SPACE 2012上给出的块方法，可以有效地缩短该方案的公钥尺寸。
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| 关 键 词： | 密码学 基于身份加密 用户撤销 格 适应性身份安全 |
| 收稿时间： | 2014-03-31 |
A Lattice-based Revocable Adaptive-ID Secure Encryption Scheme |
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| Zhang Yan-hua
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Hu Yu-puJiang
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Ming-ming
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Lai Qi-qi.A Lattice-based Revocable Adaptive-ID Secure Encryption Scheme[J].Journal of Electronics & Information Technology,2015,37(2):423-428. |
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| Authors: | Zhang Yan-hua Hu Yu-puJiang Ming-ming Lai Qi-qi |
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| Affiliation: | (State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an 710071, China) |
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| Abstract: | User revocation is crucial to the practical application of Identity Based Encryption (IBE). The first Revocable Identity Based Encryption (RIBE) scheme from lattice is given by Chen et al. in ACISP 2012, but its security can only be proved in the selective-ID model. Using the IBE scheme suggested by Agrawal et al. in EUROCPYPT 2010, this paper constructs a lattice-based adaptive-ID secure RIBE scheme, so as to solve a problem left open by Chen et al.. This paper also points out that using the blocking technique given by Singh et al. in SPACE 2012, the public key size can be reduced effectively. |
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| Keywords: | Cryptography Identity Based Encryption (IBE) User revocation Lattice Adaptive-ID secure |
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