Fine-Grained Conditional Proxy Re-Encryption and Application

被引：0
|
作者：
Yang, Yanjiang [1 ]
Lu, Haibing [2 ]
Weng, Jian [3 ,5 ]
Zhang, Youcheng [4 ]
Sakurai, Kouichi [5 ]
机构：
[1] Inst Infocomm Res, Singapore, Singapore
[2] Santa Clara Univ, Leavey Sch Business, Santa Clara, CA USA
[3] Jinan Univ, Dept Comp Sci, Jinan, Peoples R China
[4] Nanjing Unary Informat Technol Co Ltd, Nanjing, Peoples R China
[5] Kyushu Univ, Dept Informat, Kyushu, Japan
来源：
PROVABLE SECURITY, PROVSEC 2014 | 2014年 / 8782卷
基金：
美国国家科学基金会;
关键词：
Conditional proxy re-encryption; Attribute-based encryption; User revocation; Cloud data; ATTRIBUTE-BASED ENCRYPTION; DELEGATION;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Conditional proxy re-encryption (CPRE) enables delegation of decryption rights, and is useful in many applications. In this paper, we present a ciphertext-policy attribute based CPRE scheme, together with a formalization of the primitive and its security proof. We further propose applying the scheme for fine-grained encryption of cloud data. This application well implements the idea of cloud-enabled user revocation, offering an alternative yet more feasible solution to the user revocation issue when using attribute based encryption over cloud data. Features of the application include little cost in case of user revocation, and high user-side efficiency when users access cloud data.
引用
收藏
页码：206 / 222
页数：17
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