Optimistic dynamic authentication based on digital signature
Meiling Liu · Jisuanji gongcheng yu sheji · 2009
User Authentication is one of the important parts in networking security.The principles of challenge/response scheme and digital signature technology are analyzed.For the existing defects among dynamic authentication based on digital signature,an improved dynamic authentication mechanism based on digital signature is put forward.The direction of challenge in the challenge/response scheme is reversed,which means the action of challenge is initiated by clients.Analysis shows that the mechanism can reduce the frequency of communication of both sides in authentication process.Meanwhile,the new mechanism can also defense network playback attacks,violent attacks,network Sniffers,and can support bidirectional authentication as well.