A Provably Secure Threshold Decryption Scheme on Access Structure

摘要：

　　For the applied limitation of the existing provably secure threshold decryption schemes on (t,n) structure,a provably secure threshold decryption scheme on access structure is proposed.The validity of the proposed scheme is proved perfectly,and the formal security proof under the selective identity chosen-ciphertext attack is given in the standard model.Compared to the existing schemes,the applied range of the proposed scheme is wider.Besides,the design of the proposed scheme is easier because the troublesome Lagrange interpolation is not needed.

关键词： Threshold decryption Access structure Provably secure Standard model Identity

作者: Hua-Wang QIN Xiao-Hua ZHU Yue-Wei DAI

作者单位: School of Automatization,Nanjing University of Science and Technology,Nanjing 210094,China

会议类型: 国内会议

会议名称: 2014年国际计算机科学与软件工程学术会议

会议地点: 杭州

会议语种:英文

页码: 1-7

在线出版日期: 2014-10-18（万方平台首次上网日期，不代表论文的发表时间）