Multiple-Authority-Keys CP-ABE

摘要：

Functional encryption provides more sophisticated and flexible relations between the encryption-key and decryption-key. Previous FE systems only allow for functionalities that take in a single authority key and plaintext as inputs. In this paper, a MultipleAuthority-Keys Attribute-Based Encryption system is presented. The new propose scheme allows descriptor to learn functionalities that take in a multiple authority keys and plaintext as inputs. The KGC with multiple authority keys can combine users capabilities in a specified manner. We provide a proof of security in selective security model and collusion resistance. Furthermore, the performance of our new scheme compares favorably with singleauthority-keys schemes.

关键词： Functional encryption multiple-parameters functionality ABE collusion resistance

作者: Xiaoyuan Yang Weiyi Cai Ping Wei

作者单位: Key Laboratory of Network & Information Security of APF Engineering College of APF Xian,China

会议类型: 国际会议

会议名称: 2011 IEEE 3rd International Conference on Communication Software and Networks(2011第三届通信软件与网络国际会议 ICCSN2011)

会议地点: 西安

会议语种:英文

页码: 526-530

在线出版日期: 2011-05-27（万方平台首次上网日期，不代表论文的发表时间）