计算机工程Issue(7)：103-107,5.DOI:10.3969/j.issn.1000-3428.2014.07.020
一种基于身份的匿名广播加密方案
An Anonymous Identity-based Broadcast Encryption Scheme
摘要
Abstract
Most of the current broadcast encryption schemes are not anonymous. Aiming at this problem, a new anonymous Identity-based Broadcast Encryption(IBBE) scheme is constructed. It extends the definition of anonymous Identity-based Encryption(IBE) to anonymous IBBE. Combining with Zhang’s scheme(Mathematical and Computer Modelling, 2012, No.1), the new anonymous IBBE scheme is based on three static assumptions and a bilinear group of composition order. Results show that the scheme’s security does not rely on the random oracles. There is a constant ciphertexts and private key length in the scheme. Most importantly, it achieves an adaptive security and anonymous property. The adversary cannot get recipient’s any identity information, so receiver’s privacy can be protected well. Finally, the efficiency of the scheme is analyzed and the correctness and security are verified. Then, the performance of this scheme is compared with similar schemes, and result shows that the proposed scheme has better performance.关键词
广播加密/匿名/合数阶双线性群/基于身份的匿名加密/基于身份的匿名广播加密/静态假设Key words
broadcast encryption/anonymous/bilinear group of compositing order/anonymous Identity-based Encryption(IBE)/anonymous Identity-based Broadcast Encryption(IBBE)/static assumption分类
信息技术与安全科学引用本文复制引用
杨坤伟,李顺东..一种基于身份的匿名广播加密方案[J].计算机工程,2014,(7):103-107,5.基金项目
国家自然科学基金资助项目“云计算与云存储若干关键问题研究”(61272435)。 （61272435）
