This paper proposes an improved non-repudiation protocol after pointing out two attacks on an existing non-repudiation protocol.To analyze the improved protocol,it also proposes an extension of Kailar logic.Using the ...This paper proposes an improved non-repudiation protocol after pointing out two attacks on an existing non-repudiation protocol.To analyze the improved protocol,it also proposes an extension of Kailar logic.Using the extended Kailar logic,the security analysis of the improved prototocol has been presented.展开更多
基金Supported by the National Natural Science Foundation of China(90104005)the Doctoral Science Foundation of Ministry of Edu cation(20020486046)
文摘This paper proposes an improved non-repudiation protocol after pointing out two attacks on an existing non-repudiation protocol.To analyze the improved protocol,it also proposes an extension of Kailar logic.Using the extended Kailar logic,the security analysis of the improved prototocol has been presented.