基於加速度及方位感測器之智慧型手機動態動作識別機制; Biometric dynamic motion authentication using accelerometer and orientation sensor on smart phone

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题名:	基於加速度及方位感測器之智慧型手機動態動作識別機制;Biometric dynamic motion authentication using accelerometer and orientation sensor on smart phone
作者:	劉伊哲;Yi-Che Liu
贡献者:	軟體工程研究所
关键词:	方位感測器;加速度計;非侵入式;身分識別;Authentication;non-intrusive;Accelerometer;Orientation
日期:	2011-07-20
上传时间:	2012-01-05 14:49:49 (UTC+8)
摘要:	近年來，智慧型手機的便攜性、便利性使得智慧型手機成為普及的行動裝置，隨著智慧型手機功能導向的發展，被廣泛應用於通話、交易、付費以及身分認證，若遭盜用損失難以估計。上述許多功能需使用者做動態動作將手機與機器或與人溝通，這類應用程式目前僅能夠在使用前透過密碼驗證方式識別，若使用前皆需登入驗證則使用者很可能會為了方便使用而紀錄密碼，導致登入驗證形同虛設。因此本論文目的是要利用智慧型手機內建之Accelerometer及Orientation sensor達到非侵入式(non-intrusive)識別使用者動態動作的行為，以提高智慧型手機的安全等級。本論文用手機最常用之通話行為驗證動態動作是否可作為識別使用者，實驗結果同等錯誤率(Equal Error Rate)為15.4%，未達到低於12.8%目標值，認為動態動作之行為作為識別機制仍需加強其安全性。 In recent years, the smart phones have the portable and convenient ability. They become the most popular mobile devices. The functionality of smart phone development has been enhanced more than before. It has been used for communication, transaction, bill payment, and ID identification. If someone illegally uses your smart phone will make you suffer heavy losses. Most of all the above mentioned functionalities are needed to dynamic motion the smart phone communicate with machine or people. The application in current situation is just only using password authentication. If every application needs this authentication method will make user save password avoid inconvenience, so that authentication becomes useless. So the purpose of this paper use the smart phone’s embedded both accelerometer sensor and orientation sensor, achieve the non-intrusive dynamic motion authentication, and enhance smart phone security level. We use the most common communication behavior one of dynamic motion, if it can be used to verify user himself or not. The equal error rate (EER) of experimental result is under 15.4% not reach the goal, EER below 12.8%. The dynamic motion authentication needs to enhance the security level.
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