Main fundamental directions which are considered as important for practical ciphers are (1) security, (2) speed, and (3) cost for implementations. To realize these fundamental directions CLEFIA is designed. Clefia is a first block cipher employing the Diffusion Switching Mechanism (DSM) to enhance the immunity against the differential attack and the linear attack. Clefia uses lightweight compon...

Radio Frequency Identification (RFID) systems have provided promising solutions to effective identification of a large number of tagged objects. However, RFID systems suffer from unauthorized tag reading and potential eavesdropping, which becomes a challenging issue because of the shared radio medium and limited size and cost considerations in RFID. In this paper, based on a Linear Congruential...

In the last few years, the field of lightweight cryptography has seen an influx in the number of block ciphers and hash functions being proposed. One of the metrics that define a good lightweight design is the energy consumed per unit operation of the algorithm. For block ciphers, this operation is the encryption of one plaintext. By studying the energy consumption model of a CMOS gate, we arri...

The recent development of Internet Things (IoT) devices has increased related security issues. Because the rapid increase in use these devices, possibility accessing and hijacking cryptographic is increasing. Consequently, active research on technologies capable providing a safe environment even resource-constrained environments been undertaken. As result their physical accessibility, are becom...

The study of lightweight block ciphers has been a “hot topic”. As one the main structures ciphers, Feistel structure attracted much attention. However, traditional cipher changes only half plaintext in an iterative round, resulting slow diffusion. Therefore, more encryption rounds are required to ensure security. To address this issue, new algorithm, GFRX, is proposed, which combines generalize...

Most of the lightweight block ciphers are build as S-P networks or Feistel networks, their generalization or variations. We represent the lightweight Feistel ciphers GOST and MIBS, and Generalized Feistel cipher Skipjack by quasigroup string transformations. For obtaining suitable representation we use the fact that Feistel round functions that are bijections can be considered as orthomorphisms...

The Internet of Vehicles (IoV) is a disruptive technology that has great impact on people's lifestyle and activities. Fully autonomous vehicles are the next generation connected cars. However, IoV systems suffer from several security threats could offset intended advantages. To address privacy issues, cryptographic non-cryptographic solutions should be adopted. traditional might burden network ...

Technological advancements in the semiconductor industry over the last few decades made the mass production of very small-scale computing devices possible. Thanks to the compactness and mobility of these devices, they can be deployed “pervasively”, in other words, everywhere and anywhere – such as in smart homes, logistics, e-commerce, and medical technology. Embedding the small-scale devices i...