An AES-like lightweight block cipher, namely Zorro, was proposed in CHES 2013. While it has a 16-byte state, it uses only 4 S-Boxes per round. This weak nonlinearity was widely criticized, insofar as it has been directly exploited in all the attacks on Zorro reported by now, including the weak key, reduced round, and even full round attacks. In this paper, using some properties discovered by Wa...

Nowadays the number of embedded devices communicating over a network is increasing. Thus, need for security appeared. Considering various constraints limited resources very important. These include power, memory, area and latency. A perfect environment satisfying requirements in lightweight cryptography. recent algorithm that has low high throughput which ANU-II block cipher. Many technologies ...

We study the possibility of GOST block cipher modification in such way, that it would resist Isobe and Dinur-Dunkelman-Shamir attacks, and, at the same time, would be still lightweight-friendly.

Hirose, Kuwakado and Yoshida proposed a nonce-based authenticated encryption scheme Lae0 based on Lesamnta-LW in 2019. is block-cipher-based iterated hash function included the ISO/IEC 29192-5 lightweight hash-function standard. They also showed that satisfies both privacy authenticity if underlying block cipher pseudorandom permutation. Unfortunately, their result implies only about 64-bit sec...

In this paper, we analyzed an extreme case of lightweight block cipher design in terms of security and efficiency. To do this, we proposed ELiF block cipher family which has one of the smallest hardware area in a fully serial design. We also defined ELiF to be flexible and scalable so that it can be implemented for real life applications with different scenarios such as fixed key implementation...

An increasing number of lightweight cryptographic primitives have been published in the last years. Some of these proposals only use additions, rotations and XORs, and these ARX primitives have shown a great performance in software. In this paper, a computer tool to automate the security evaluation of ARX block ciphers is shown. Our tool takes a Python implementation of an ARX block cipher and ...