Security Analysis of Lightweight IoT Cipher: Chaskey

Chaskey: a Lightweight MAC Algorithm for Microcontrollers

We propose Chaskey: a very efficient Message Authentication Code (MAC) algorithm for 32-bit microcontrollers. It is intended for applications that require 128-bit security, yet cannot implement standard MAC algorithms because of stringent requirements on speed, energy consump­ tion, or code size. Chaskey is a permutation-based MAC algorithm that uses the Addition-RotationXOR (ARX) design method...

LSB: A Lightweight Scalable BlockChain for IoT Security and Privacy

BlockChain (BC) has attracted tremendous attention due to its immutable nature and the associated security and privacy benefits. BC has the potential to overcome security and privacy challenges of Internet of Things (IoT). However, BC is computationally expensive, has limited scalability and incurs significant bandwidth overheads and delays which are not suited to the IoT context. We propose a ...

Hybrid Lightweight and Robust Encryption Design for Security in IoT

Pervasive computing is the emerging field that needs ultra lightweight secure designs. In this paper, we have proposed a robust hybrid structure by fusion of RECTANGLE, LED and SPECK. With the help of a hybrid design, we have improved the key scheduling aspect of LED and related key attacks which were neglected in the LED cipher. In this paper, we also aimed at providing robust architecture by ...

Security Analysis of the Block Cipher Camellia

LBlock: A Lightweight Block Cipher

In this paper, we propose a new lightweight block cipher called LBlock. Similar to many other lightweight block ciphers, the block size of LBlock is 64-bit and the key size is 80-bit. Our security evaluation shows that LBlock can achieve enough security margin against known attacks, such as differential cryptanalysis, linear cryptanalysis, impossible differential cryptanalysis and related-key a...