| dc.description.abstract | In recent years, with the widely used of the smartphone and advances in smartphone technology, more and more people use smartphones, and use the services on the smartphones, such as personal privacy information services and ID identification services. If the smartphone has been stolen or someone illegally uses your smartphone, it will make you suffer heavy losses. Most of the above mentioned functionalities are needed user to operate for a long time on smartphone so as to access data. However, currently, most of the applications are just only using the password authentication. If during using the smartphone, will often needing to authenticate user, will make user turn off the authentication mechanism, or save the password in the smartphone, makes the authentication mechanism useless. So the purpose of this paper use the smartphone’s embedded sensor, orientation sensor and touch screen, to achieve the non-intrusive user authentication, and enhance smartphone security level. The experiment results show that the proposed approach has an Equal-Error-Rate (EER) about 7%. Therefore, the multimodal authentication mechanism can distinguish users’ differences. | en_US |