AES has proven to be more secure andefficient than its encryption predecessors. Among AES algorithms,Rijndael has proven to be an extremely fast, state-of-the art, easyto implement, and highly secure ...

This article will focus on applying AES encryption and hash authorization functions to the MQTT protocol using the popular ESP8266 chip running NodeMCU firmware.

Conversely, symmetric cryptography in general, and Advanced Encryption Standard (AES), Secure Hash Algorithm 2 (SHA-2), and SHA-3 in particular, are expected to suffer a much smaller security ...

The AES algorithm is a fixed-width encryption algorithm. Therefore, the input message is first padded to make sure that it will completely fit in “n” number of 128-bit blocks.

The winner, a group of cryptographic algorithms called Ascon, will be published as NIST’s lightweight cryptography standard later in 2023. The chosen algorithms are designed to protect information ...