Design Of The Embedded Mobile Terminal System Based On TPM

With the development and application of mobile intelligent terminal,mobile intelligent terminal has become indispensable part of study,work and life.the security problem attracts more and more individuals and enterprises.Nowadays more and more mobile terminals involving personal privacy and commercial secrets,at the same time terminal equipment have also been various security threats.With the development of the Internet,the terminal equipment as information carrier of mobile Internet era,how to prevent information leakage is a problem that people are concerned about.It is urgency and importance to carry out the research on mobile intelligent terminal of information security protection.In this paper,the embedded system based on trusted computing mobile terminal is designed as a new information security situation for development and design.The primary work is to complete the transplantation of android and integrate TPM into the system.This paper completed schematic?PCB design?debugging and welding structure design about hardware and bootloader?the Linux kernel?file system and Android transplantation about software.Finally,we have completed the test of credible based on TPM after the transplantation of system.The embedded system consists of bootloader,the Linux kernel and file system.The main purpose is bootloader based on the board,TPM device driver,android and file encryption system.This paper studies the Trusted Computing Embedded mobile terminal uses a framework based on ARM Cortex-A8 Samsung S5PV210 chip as the main processor and the ATMEL TPM chip AT97SC3204T-28A2 as a trusted module.Software,we have chosen android 4.4_r1.2 based on Linux3.1.10 as an embedded operating system.In the course of this study,we have carried out extensive testing,finished with the transplant and customization from bootloader,Linux3.1.10,Android and file systems,realize the design of important information encryption and security of the system.After testing,the system have achieved the expected requirements,has a high reference value for the current security issues about smart mobile terminal.