计算机与现代化Issue(4)：118-121,4.DOI:10.3969/j.issn.1006-2475.2017.04.024
指定服务器的基于身份加密连接关键字搜索方案
Designated Server Identity-based Encryption with Conjunctive Keyword Search Scheme
王刚 1李非非 1王瑶1
作者信息
- 1. 河海大学计算机与信息学院,江苏 南京 211100
- 折叠
摘要
Abstract
Public key encryption with keyword search (PKES) allows a user to send a trapdoor of some searched keywords to a server, which will enable the server locate all encrypted data containing the searched keywords.To remove the secure channel between the server and the receivers in the previous identity-based encryption with keyword search (IBEKS) schemes, Wu et al.proposed a designated server identity-based encryption with keyword search (dIBEKS) scheme.However, Wu et al.'s dIBEKS scheme can not satisfy the ciphertext indistinguishability.To overcome the security weakness in Wu et al.'s scheme and provide the functionality of multiple keywords searching, we put forward a designated server identity-based encryption with conjunctive keywords search scheme.The security analysis shows that the proposed scheme simultaneously satisfies the security of ciphertext indistinguishability, trapdoor indistinguishability and off-line keyword-guessing attack.Comparison analysis shows that the proposed scheme is more efficient and practical.关键词
密文搜索/指定服务器/基于身份加密/多关键字加密/连接关键字搜索Key words
ciphertext search/designated server/identity-based encryption/multiple keywords encryption/conjunctive keywords search分类
信息技术与安全科学引用本文复制引用
王刚,李非非,王瑶..指定服务器的基于身份加密连接关键字搜索方案[J].计算机与现代化,2017,(4):118-121,4.
