Quantum computing is considered among the next big leaps in computer science. While a
fully functional quantum computer is still in the future, there is an ever-growing need to …

Quantum permutation pad or QPP is a quantum-safe symmetric cryptographic algorithm
proposed by Kuang and Bettenburg in 2020. The theoretical foundation of QPP leverages …

In this paper, we present the quantum implementation and analysis of the recently proposed
block cipher, DEFAULT. This cipher consists of two components, namely DEFAULT-LAYER …

Secure communication is important for Internet of Things (IoT) applications, to avoid cyber-
security attacks. One of the key security aspects is data integrity, which can be protected by …

Extensive research is currently underway to determine the security of existing ciphers in light
of the advancements in quantum computing. Against symmetric key cryptography, Grover's …

In this paper, we show an in-place implementation of the ASCON linear layer. An in-place
implementation is important in the context of quantum computing, we expect our work will be …

In this paper, we propose a quantum circuit for the SPEEDY block cipher for the first time and
estimate its security strength based on the post-quantum security strength presented by …

A quantum computer capable of running the Grover search algorithm, which reduces the
complexity of brute-force attacks by a square root, has the potential to undermine the …

In this paper, we present the``DORCIS''tool, which finds depth-optimized quantum circuit
implementations for arbitrary 3-and 4-bit S-boxes. It follows up from the previous LIGHTER-R …

To build a secure cryptography system in the post-quantum era, one must find the minimum
security parameters against quantum attacks by estimating the quantum resources of a fault …