Low power integrated compact sensors for applications such as IoT and arrayed biomedical sensors are essential for today's technology. However, security is not incorporated in these sensors and are typically added after implementation using digital hardware or software. In this paper, we demonstrate a temperature to time sensing system with a discrete level encryption process using real-time analog circuitry and minimal processing power. The encryption uses the chaotic Lorenz attractor system. The temperature sensor, implemented in 130 nm technology, consumes 195 nW with 0.5 V power supply. The encryption module is simulated in Simulink and implemented at the board level using discrete components on a printed circuit board. Experimental results show that the envisioned chaotic system is capable of accurately encrypting and decrypting the digital temperature signal.
|Original language||English (US)|
|Title of host publication||2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||4|
|State||Published - Aug 2019|
|Event||62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019 - Dallas, United States|
Duration: Aug 4 2019 → Aug 7 2019
|Name||Midwest Symposium on Circuits and Systems|
|Conference||62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019|
|Period||8/4/19 → 8/7/19|
Bibliographical noteFunding Information:
This material is based upon work supported by the National Science Foundation under Grant No. 1816703 and by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0017414.
© 2019 IEEE.