A digital signature with high security based on location information

In this paper, a digital signature with high security based on location information is proposed. Based on the characteristics of mobile terminal, we proposed the scheme, taking network attack and physical attack into consideration, to insure the data on mobile terminal to insure user´s right. By analyzing related location data to calculate user´s often area, we judges whether user´s current access location is valid, and integrating digital signature with terminal information based on judgment result. It not only prevents network attacks but also from physical attacks. And we show our approach can effectively improve the security and perform well.