新型自适应安全的密钥策略ABE方案

doi:10.3969/j.issn.1000-436x.2012.z1.036

通信学报 ›› 2012, Vol. 33 ›› Issue (Z1): 270-275.doi: 10.3969/j.issn.1000-436x.2012.z1.036

新型自适应安全的密钥策略ABE方案

罗颂¹,陈钟²

¹ 重庆理工大学计算机科学与工程学院，重庆 400054
² 北京大学信息科学技术学院软件研究所，北京 100871

出版日期:2012-09-25 发布日期:2017-08-03
基金资助:
国家自然科学基金资助项目;国家自然科学基金资助项目

New adaptively secure key-policy attribute-based encryption scheme

Song LUO¹,Zhong CHEN²

¹ College of Computer Science and Engineering,Chongqing University of Technology,Chongqing 400054,China
² Institute of Software,School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China

Online:2012-09-25 Published:2017-08-03
Supported by:
The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要/Abstract

摘要：

基于3维对偶正交基的技术，提出了一种新的密钥策略的基于属性的加密方案。该方案在素数阶群上构造，支持单调访问结构，具有自适应安全性。方案利用双重系统加密的证明方法将方案的自适应安全性归约到判定线性假设。与同样是自适应安全的密钥策略ABE方案相比，提出的方案在同等安全性上具有更高的效率。

关键词: 基于属性的加密, 密钥策略, 素数阶群, 自适应安全

Abstract:

A new key-policy attribute-based encryption scheme based on 3 dimension dual orthonormal bases was proposed.This scheme was constructed in prime order groups with adaptive security and supporting access structures.It has been proved the security from decisional linear assumption by using dual system encryption technique.Compared with previous key-policy ABE scheme which is also adaptively secure,the scheme is more efficient at the same security level.

Key words: attribute-based encryption, key policy, prime order group, adaptive security

罗颂,陈钟. 新型自适应安全的密钥策略ABE方案[J]. 通信学报, 2012, 33(Z1): 270-275.

Song LUO,Zhong CHEN. New adaptively secure key-policy attribute-based encryption scheme[J]. Journal on Communications, 2012, 33(Z1): 270-275.

图/表 1

参考文献 17

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方案	解密时对运算个数	群大小	假设
文献[13]	2\|S\|	p₁p₂p₃	合数阶群假设
本文方案	6\|S\|	p	判定线性假设

新型自适应安全的密钥策略ABE方案

New adaptively secure key-policy attribute-based encryption scheme

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