BLUETOOTH ENABLED SECURE ABE BASED LOT HEALTH SENSOR

Abstract

Electronic Health data is having a profound and increasing impact in the area of mobile health services. This electronic health data is stored, transferred and processed in these systems with which comes the privacy, authentication, secure storage and accountability issues. In this paper, we propose an approach which provides end-to-end security by encrypted data storage and transmission. We propose a unique Secure Health Sensor Data (SHSD) system with embedded secure microcontroller. This system communicates with systems such as laptop, mobile etc. through Bluetooth interface. Our design at present comprises use of motion sensor i.e. accelerometer based sensor which can be used to detect the x, y, z coordinates of human body as well as fall detection of elderly people. The data is generated, stored and transferred by SHSD by making use of Raspberry Pi (a single board computer system) to a mobile device for e.g. Laptops, Phones etc. We propose a novel approach to implement this on embedded Java Card OS and energy and cost efficient single board system such as Raspberry Pi. Java Card API provides secure and efficient OS defined objects for storage of sensitive data and for cryptographic mechanisms. Access to the data stored in the microcontroller can be safeguarded by controlled access policies enforced by an Applet. The security issues has been addressed in multiple ways. Firstly, the loss of sensor data is prevented by making use of wired connection from Raspberry Pi to ADXL motion sensor chip. Secondly, a secure communication is ensured by encryption of the sensor data. Thirdly, the symmetric key is stored in the tamper resistant secure element of the Java Card. Fourth, Attribute based encryption (ABE) which is fine grained secure access control technique. Thereby, make it impossible for adversary to gain access to sensor data. The combined use of Raspberry Pi and Java Card increase the security of the system and make it more accountable.