Proxy Re-Encryption Based Multi-Factor Access Control for Ciphertext in Cloud  

作　　者：SUMang WANG Liangchen FUAnmin YU Yan 苏铓;汪良辰;付安民;俞研(School of Computer Science and Engineering,Nanjing University of Science and Technology)

机构地区：School of Computer Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2018年第5期666-670,共5页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(Nos.61702266 and 61572255);the Natural Science Foundation of Jiangsu Province(Nos.BK20150787 and BK20141404)

摘　　要：Cloud computing provides a wide platform for information sharing. Users can access data and retrieve service easily and quickly. Generally, the data in cloud are transferred with encrypted form to protect the information. As an important technology of cloud security, access control should take account of multi-factor and ciphertext to satisfy the complex requirement for cloud data protection. We propose a proxy re-encryption （PRE） based multi-factor access control （PMAC） for cipher text in the above background. The PMAC adapts to the privacy and the protection of data confidently. We explain the motivation and some assumptions of PMAC at first. Then we define system model and algorithm. The system model and algorithm show how to create the data with corresponding accessing Policy and how to grant and revoke the nermission.Cloud computing provides a wide platform for information sharing. Users can access data and retrieve service easily and quickly. Generally, the data in cloud are transferred with encrypted form to protect the information. As an important technology of cloud security, access control should take account of multi-factor and ciphertext to satisfy the complex requirement for cloud data protection. We propose a proxy re-encryption(PRE)based multi-factor access control(PMAC) for cipher text in the above background. The PMAC adapts to the privacy and the protection of data confidently. We explain the motivation and some assumptions of PMAC at first. Then we define system model and algorithm. The system model and algorithm show how to create the data with corresponding accessing policy and how to grant and revoke the permission.

关 键 词：proxy re-encryption （PRE） access control multi-factor cipher text cloud computing 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]