Design And Development Of Household Electronic Medical Secure System

With the rapid advancement of Body Area Network technology and the expansion of health-care business,people are gradually paying more and more attention to their health.Different from the traditional sensor network,the medical information processed in the body area network is more sensitive and private and its information security and privacy need to be especially strengthened.Therefore,secure data transmission and user privacy protection become important parts of the research priorities of wireless body area networks.In recent years,in order to solve the existing information security problems noticed above in the electronic medical system,various efforts have been made by the academic community.The focus of existing researches are mostly on resisting attacks from enemies such as eavesdropping and tampering.It is rarely considered to protect patients’ sensitive information when faced with doctors,service providers and other legitimate objects,which leads to a great risk of privacy leakage.Besides,considering of in the application scenario,the existing research on information security has little attention to the home-type electronic medical diagnosis system,and there is little systematic and complete hardware implementation.The paper designed and developed a suit of e-medical secure system which integrates functions such as data collection,secure transmission,diagnosing and user self-view.Based on the most basic cryptography techniques like encryption,digital signature and message digest,introducing the technical idea of dual digital signature,this paper proposed a secure transmission scheme for electronic medical care system to ensure information security and protect patients’ privacy.The paper analyzed the security performance of the secure transmission scheme from the perspectives of privacy protection,camouflage attack and replay attack,etc.For cryptographic algorithm in the scheme above,this paper proposes a linear shift register-based hash algorithm formessage digest calculation based on the computational relationship between LFSR and Toeplitz matrix.Besides,the OpenSSL environment was built for key generation and other encryption algorithms.The system used heart-rate as the health index to build a hardware architecture with pulse sensor and MCU of STM32 series.Following the data flow,the paper designed and developed the four sub-modules of the system,which are respectively named data acquisition module,data processing and sending module,data receiving and persistence module,and Web interaction module.In the data acquisition module,the paper developed functions of sensor collecting and returning the pulse signal under Keil MDK.In the data processing and sending module,the MCU calculates the heart rate value based on the pulse signal and performs data security processing.Then the data will be sent into the network after the WiFi module configuration.In the data receiving and persistence module,this paper developed a TCP-based Socket communication host computer in Eclipse IDE environment,which is used to receive the information sent from the gateway,and to save the information into database after security verification.Finally,this paper built the Tomcat server environment,and used JSP with Java to design and develop the Web interaction module.For patient side,web functions such as user system login,viewing of heart rate information and diagnostic information were developed.In summary,from design to hardware and software development,a complete set of home-based heart rate diagnostic security systems has been reproduced.In summary,beginning from needs analysis,architecture and security strategy design to software and hardware development,a complete set of home-based heart rate diagnostic security systems has been reproduced.