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多接收者环境下的匿名性和密文长度缩短的匿名广播加密算法(英文) 被引量：1

Key privacy in multi-recipient setting and shortened private broadcast encryption
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摘要 形式化构建了在多用户环境和随机数复用多用户环境下的匿名性安全模型,并证明了其安全性;同时提出了2种针对匿名性的可复制测试.基于这些结果,构造了一个通用的密文长度缩短的匿名广播加密算法. In this paper,we formally built the security models on key privacy in the multi-recipient and randomness re-using multi-recipient setting and proved their security. Two associated reproducibility tests concerning key privacy were proposed. Based on these results,we constructed a general shortened private broadcast encryption scheme which approximately halves ciphertext overhead and computational cost.
作者 张海滨 武传坤 魏凌波
机构地区 中国科学院软件所信息安全国家重点实验室 中国科学院研究生院
出处 《中国科学院研究生院学报》 CAS CSCD 北大核心 2010年第1期90-106,共17页 Journal of the Graduate School of the Chinese Academy of Sciences
基金 supported by the National Grand Fundamental Research 973 Program of China(2007CB807902) the National High-Tech Research and Development Plan of China(2006AA01Z423)
关键词 匿名性 随机数 多接受者 广播加密 匿名广播加密 key privacy randomness multi-recipient broadcast encryption private broadcast encryption
分类号 TP309 [自动化与计算机技术—计算机系统结构]
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参考文献23

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中国科学院研究生院学报
2010年 第1期

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