XTR-Kurosawa-Desmedt Scheme  

作　　者：DING XIU-HUAN Fu ZHI-GUO ZHANG SHU-GONG 

机构地区：[1]School of Mathematics, Jilin University, Changchun, 130012

出　　处：《Communications in Mathematical Research》2009年第3期265-276,共12页数学研究通讯（英文版）

基　　金：Supported partially by the National Grand Fundamental Research 973 Program (2004CB318000) of China

摘　　要：This paper proposes an XTR version of the Kurosawa-Desmedt scheme. Our scheme is secure against adaptive chosen-ciphertext attack under the XTR version of the Decisional Diffie- Hellman assumption in the standard model. Comparing efficiency between the Kurosawa-Desmedt scheme and the proposed XTR-Kurosawa-Desmedt scheme, we find that the proposed scheme is more efficient than the Kurosawa-Desmedt scheme both in communication and computation without compromising security.This paper proposes an XTR version of the Kurosawa-Desmedt scheme. Our scheme is secure against adaptive chosen-ciphertext attack under the XTR version of the Decisional Diffie- Hellman assumption in the standard model. Comparing efficiency between the Kurosawa-Desmedt scheme and the proposed XTR-Kurosawa-Desmedt scheme, we find that the proposed scheme is more efficient than the Kurosawa-Desmedt scheme both in communication and computation without compromising security.

关 键 词：XTR Kurosawa-Desmedt scheme adaptive chosen-ciphertext security XTR-DDH assumption 

分 类 号：TN918.1[电子电信—通信与信息系统] TN918[电子电信—信息与通信工程]