Constant-Size CCA-Secure Multi-hop Unidirectional Proxy Re-encryption from Indistinguishability Obfuscation

被引：5
|
作者：
Lai, Junzuo [1 ,2 ]
Huang, Zhengan [3 ]
Au, Man Ho [4 ]
Mao, Xianping [5 ]
机构：
[1] Jinan Univ, Guangzhou, Peoples R China
[2] State Key Lab Cryptol, Beijing, Peoples R China
[3] Guangzhou Univ, Guangzhou, Peoples R China
[4] Hong Kong Polytech Univ, Hung Hom, Hong Kong, Peoples R China
[5] ZhongAn Informat Technol Serv Co Ltd, Shanghai, Peoples R China
来源：
INFORMATION SECURITY AND PRIVACY | 2018年 / 10946卷
基金：
中国国家自然科学基金;
关键词：
Multi-hop; Unidirectional proxy re-encryption; Chosen-ciphertext attack; Indistinguishability obfuscation;
D O I：
10.1007/978-3-319-93638-3_49
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we utilize the recent advances in indistinguishability obfuscation, overcome several obstacles and propose a multihop unidirectional proxy re-encryption scheme. The proposed scheme is proved to be CCA-secure in the standard model (i.e., without using the random oracle heuristic), and its ciphertext remains constant-size regardless of how many times it has been transformed.
引用
收藏
页码：805 / 812
页数：8
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