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Abstract:The importance of cryptography applied to security in electronic data transactions has acquired an essential relevance during the last few years. A proposed FPGA-based implementation of the Advanced Encryption Standard (AES) algorithm is presented in this paper. The design has been coded by Very high speed integrated circuit Hardware Descriptive Language. All the results are synthesized and simulated using Xilinx ISE and ModelSim software respectively. This implementation is compared with other works to show the efficiency. The design uses an iterative looping approach with block and key size of 128 bits, lookup table implementation of S-box. This gives low complexity architecture and easily achieves low latency as well as high throughput. Simulation results, performance results are presented and compared with previous reported designs.

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This paper presents design and development of a non-invasive method to measure the blood pressure signal in this instrument for remote monitoring and also continuous monitoring system based Zigbee module and microcontroller. The system is a embedded system and blood pressure is a biomedical signal measured using an optical device measurement circuit based photo plesthysmography technique continuously measure for a long period of time. Blood pressure numerical reading values of systolic and diastolic blood pressure calculated is then displayed on a mini LCD as well as stationary computer via Zigbee module and also obtained the results were compared with existing devices data as a Sphygmomanometer technique to verify the accuracy of the developed instrument.

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