Abstract :
Wireless sensor networks (WSN) are an important technology that can directly be used in electronic –
healthcare, which is useful to collect and process the data of a patient, and then recommend/provide the patient with
safe/proper pharmaceutical medication, by using wearable and tiny bio-sensor devices. The data collected from a
patient is very important and must be securely protected from attacks. But there are many challenges which are to be
dealt with, in the WSN devices because of the constraints in the resources which are very tiny. Even there is very
huge in the security and privacy that is to be provided practically. In the present paper, a new security system has
been proposed that can be effectively used in the e-health care applications using Medical sensor networks (MSN).
The present paper proposes a system that is using a mechanism that is updating key based on hash-chain and a special
signature technique which is proxy protected. This system is advantageous as it is useful and helpful in achieving
efficient transmission which is secure also. A data access control system that has fine grained mechanism is also
proposed in this paper. This system is useful for low powered nodes as it employs symmetric key encoding and/or
decoding and hash operations.
Keyword :
Medical Sensor Networks, Pharmaceutical medication, Bio sensors, Security.