An Encryption Scheme using Dynamic Keys and Stream Ciphers for Embedded Devices

Security in embedded devices can be challenging, due to limited available resources, including processing power, memory and energy autonomy. Embedded security solutions should have a low computational complexity and minimum memory requirements, while at the same time these must not reflect in the mechanism's efficiency. This paper describes a lightweight scheme for Data in Transit Encryption (DiTE) using dynamic keys, designed for embedded devices. The scheme is based on the RC4 and ChaCha ciphers and uses communication channel characteristics, and especially the RSSi, to generate the encryption keys. The proposed algorithm provides an enhanced security level, due to the non static encryption keys, in both physical and transport level.

Automated summary

This paper presents a lightweight scheme for Data in Transit Encryption (DiTE) for embedded devices. The scheme uses dynamic keys generated based on communication channel characteristics, providing enhanced security level.