计算机应用与软件2016，Vol.33Issue(9)：310-312,319,4.DOI:10.3969/j.issn.1000-386x.2016.09.072
BGN-型类同态 IBE 方案的构造与分析
CONSTRUCTION AND ANALYSIS OF THE HOMOMORPHIC IBE SCHEME OF BGN TYPE
摘要
Abstract
Since the identity-based public key encryption(IBE)is different from traditional public key encryption,the public key in IBE is a string of characters which is related to the identity of the user,thus it provides the encrypteddata with a more flexible access control.BGN is a homomorphic encryption scheme proposed in 2005,which is able to do arbitrary additions and one multiplication to the encrypted message, but it is not an IBE scheme still.On the basis of the BGN scheme,a new homomorphic IBSHE scheme based on quadratic residue and subgroup decisional problemis constructedto obtain a homomorphic IBE scheme which satisfies the demand of identity-based encryptionscheme in network.Also,the CPA security of the scheme is proved by random oracle model.关键词
同态加密/基于身份的加密/双线性映射/二次剩余问题/子群判定问题Key words
Homomorphic encryption/Identity-based encryption/Bilinear map/Quadratic residue problem/Subgroup decisional prob-lem分类
信息技术与安全科学引用本文复制引用
戴晓明,张薇,郑志恒..BGN-型类同态 IBE 方案的构造与分析[J].计算机应用与软件,2016,33(9):310-312,319,4.基金项目
国家自然科学基金项目（61272492，61103230）。 （）
