Privacy preserving ciphertext-policy attribute-based broadcast encryption in smart city  

作　　者：Cui Yilei Zhang Leyou 

机构地区：[1]School of Mathematics and Statistics,Xidian University

出　　处：《The Journal of China Universities of Posts and Telecommunications》2019年第1期21-31,共11页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(61472307,61402112);the Key Research Project of Shaanxi Province of China(2018GY-018);the Foundation of Education Department of Shaanxi Province(17JK0713);the National Key Research and Development Program of China(2017YFB0802002);the National Cryptography Development Fund(MMJJ20180209)

摘　　要：With the development and application of information technology, the problem of personal privacy leakage is becoming more and more serious. Most attribute-based broadcast encryption(ABBE) schemes focus on data security, while ignoring the protection of the personal privacy of users in access structure and identity. To address this problem, a privacy preserving ABBE scheme is proposed, which ensures the data confidentiality and protects personal privacy as well. In addition, the authenticity of encrypted data can be verified. It is proved that the proposed scheme achieves full security by dual system encryption.With the development and application of information technology, the problem of personal privacy leakage is becoming more and more serious. Most attribute-based broadcast encryption(ABBE) schemes focus on data security, while ignoring the protection of the personal privacy of users in access structure and identity. To address this problem, a privacy preserving ABBE scheme is proposed, which ensures the data confidentiality and protects personal privacy as well. In addition, the authenticity of encrypted data can be verified. It is proved that the proposed scheme achieves full security by dual system encryption.

关 键 词：smart city ATTRIBUTE-BASED BROADCAST ENCRYPTION PRIVACY PRESERVING full security 

分 类 号：TN[电子电信]