Research And Design Of Mobile Signature

In recent years,smartphones and tablets are gaining popularity among the public owning to the giant leap of the processing ability and stability on mobile devices with the development of internet and communication technology.Portability is the main feature that leads users to proceed their work on mobile devices.Meanwhile,an increasing number of funny and useful apps and payment platforms are emerging on Android and IOS platform,which bring convenience to our lives and change our payment habits a lot.More and more people are getting accustomed to shopping online and transferring money through online payment platform.Handy as mobile devices do,security incidents,however,are increasing accordingly.When enjoying the freedom bringing by the anonymity of the Internet,we also have to undertake the risk of being attacked.Authentication in network has become an important way to dispose of the security problems.Moreover,common identity authentication methods are difficult to implement on mobile devices.In this paper,I propose a new signature scheme on mobile devices which utilise the private key stored on user' s mobile device to proceed the authentication process.The most innovative point of this paper can be described as follows:I put forward a mobile signature process based on the model of existing mobile signature frame when mobile devices are not applicable.In addition,the optimised process of mobile signature has been designed as well as an application of this process on mobile phone is implemented.The main work of this paper consists of four parts.First of all,I analyse the advantages and disadvantages of existing mobile signature schemes.Secondly,I optimise the mobile signature model based on the signature of client and design a mobile signature process to deal with the situation when the mobile device is unusable.Thirdly,I propose a scheme to upload private key and public key as well as other related information on SIM card to the backup server,from which the other devices can download the private key and certifacate to carry on the signature process.Finally,design a applicable application based on previous model and implement a simulation test,and analyse the results of this test.