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| 格上新的身份类广播加密方案 | |
| 引用本文： | 张伟仁,胡予濮,杨晓元. 格上新的身份类广播加密方案[J]. 北京邮电大学学报, 2012, 35(6): 112-115 |
| 作者姓名： | 张伟仁 胡予濮 杨晓元 |
| 作者单位： | 1. 西安电子科技大学 计算机网络与信息安全教育部重点实验室, 西安 710071;2. 武警乌鲁木齐指挥学院, 乌鲁木齐 830049; 3. 武警工程大学 电子技术系, 西安 710086 |
| 基金项目： | 国家重点基础研究发展计划项目(2007CB311201);国家自然科学基金项目(61272492,60970119,60803149) |
| 摘 要： | 为了设计能够抗量子攻击的广播加密方案,利用盆景树模型在随机格上构造了一个新的身份类广播加密方案. 解决了格基广播加密方案存在的解密失败问题. 在标准模型下,证明了该方案是抗选择明文攻击安全的,且安全性归约到格上错误学习问题. 同时该方案能够有效地实现用户端的动态扩展和无状态接收功能. |
| 关 键 词： | 格 错误学习问题 广播加密 基于身份加密 盆景树 |
| 收稿时间： | 2012-01-05 |
A New Identity-Based Broadcast Encryption Scheme over Lattice |
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| ZHANG Wei-ren,HU Yu-pu,YANG Xiao-yuan. A New Identity-Based Broadcast Encryption Scheme over Lattice[J]. Journal of Beijing University of Posts and Telecommunications, 2012, 35(6): 112-115 | |
| Authors: | ZHANG Wei-ren HU Yu-pu YANG Xiao-yuan |
| Affiliation: | 1. Key Laboratory of Computer Networks and Information Security of Ministry of Education, Xidian University, Xi’an 710071, China;2. Urumqi Command College of the Armed Police Force, Urumqi 830049, China; 3. Department of Electronic Technology, Engineering University of the CAPF, Xi’an 710086, China |
| Abstract: | To design a post-quantum secure broadcast encryption scheme, by using the bonsai trees model, an identity-based broadcast encryption scheme over lattice is proposed. The proposed scheme can avoid the decryption failure problem in the existing scheme. The new scheme is provable securied against chosen-plaintext attack where the security is reduced to the hardness of learning with errors in the standard model. Moreover the proposed scheme supports the dynamic expansion of client and deals with the setting of stateless receivers. |
| Keywords: | lattice learning with errors broadcast encryption identity-based encryption bonsai trees |
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