Lightweight Cryptography for Resource-Constrained Devices: A Comparative Study and Rectangle Cryptanalysis.

Several Lightweight cryptosystems were specially designed for constrained-devices. For this reason many papers have been comparing and assessing existing Lightweight cryptosystems. Our contribution; compared to those papers; is to analyse the recently and popular Lightweight cryptosystems using actual devices used in IoT context namely the Raspberry Pi 2 B and Arduino UNO. The evaluation is based on RAM and ROM consumption, speed performance by evaluating Encryption/Decryption time speed and clock cycle and security level. The results of this evaluation indicates the superiority of Speck in term of memory consumption, Rectangle in term of speed performance and Present in term of security level.