Deterministic Attributed Based Encryption

摘要：

　　Attribute based encryption enables data owners to share their information by specifying access control policies while outsourcing their encrypted data to the cloud.However,there are no efficient searchable schemes over encrypted data in attribute-based setting.In this paper,we propose a novel primitive called deterministic attribute based encryption (DABE ),which simultaneously supports data sharing and retrieving in time logarithmic in the size of the database.We formalize the security properties for DABE with respect to auxiliary inputs.Furthermore,we propose a generic construction in the random oracle model and a selective secure concrete Key-policy DABE in the standard model under Decisional Bilinear Diffie-Hellman assumption.

关键词： attribute based encryption deterministic encryption auxiliary inputs

会议类型: 国内会议

会议名称: 第八届中国可信计算与信息安全学术会议

会议地点: 湖北恩施

会议语种:英文

页码: 1-7

在线出版日期: 2014-09-13（万方平台首次上网日期，不代表论文的发表时间）