# An Energy-Efficient Reconfigurable DTLS Cryptographic Engine for End-to-End Security in IoT Applications

## TL;DR

This paper introduces a reconfigurable cryptographic engine for IoT that significantly reduces energy consumption and code size, enabling secure end-to-end communication with high efficiency.

## Contribution

It presents a novel reconfigurable DTLS engine with substantial improvements in energy efficiency and code size over software and existing hardware solutions.

## Key findings

- 10x reduction in code size
- 438x energy-efficiency improvement over software
- ECC primitive 237x and 9x more energy-efficient than software and hardware

## Abstract

This paper presents a reconfigurable cryptographic engine that implements the DTLS protocol to enable end-to-end security for IoT. This implementation of the DTLS engine demonstrates 10x reduction in code size and 438x improvement in energy-efficiency over software. Our ECC primitive is 237x and 9x more energy-efficient compared to software and state-of-the-art hardware respectively. Pairing the DTLS engine with an on-chip RISC-V allows us to demonstrate applications beyond DTLS with up to 2 orders of magnitude energy savings.

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Source: https://tomesphere.com/paper/1903.04387