Yongjin Jeon, Seungjun Baek^#, Jongsung Kim^*

CMES-Computer Modeling in Engineering & Sciences, Vol.141, No.1, pp. 545-561, 2024, DOI:10.32604/cmes.2024.052374 - 20 August 2024

Abstract Quantum computers accelerate many algorithms based on the superposition principle of quantum mechanics. The Grover algorithm provides significant performance to malicious users attacking symmetric key systems. Since the performance of attacks using quantum computers depends on the efficiency of the quantum circuit of the encryption algorithms, research research on the implementation of quantum circuits is essential. This paper presents a new framework to construct quantum circuits of substitution boxes (S-boxes) using system modeling. We model the quantum circuits of S-boxes using two layers: Toffoli and linear layers. We generate vector spaces based on the values… More >

Chaoyang Li^1,2,3, Gang Xu², Yuling Chen^1,*, Haseeb Ahmad⁴, Jian Li³

CMC-Computers, Materials & Continua, Vol.61, No.2, pp. 711-726, 2019, DOI:10.32604/cmc.2019.06279

Abstract Blockchain technology has become a research hotspot in recent years with the prominent characteristics as public, distributed and decentration. And blockchain-enabled internet of things (BIoT) has a tendency to make a revolutionary change for the internet of things (IoT) which requires distributed trustless consensus. However, the scalability and security issues become particularly important with the dramatically increasing number of IoT devices. Especially, with the development of quantum computing, many extant cryptographic algorithms applied in blockchain or BIoT systems are vulnerable to the quantum attacks. In this paper, an anti-quantum proxy blind signature scheme based on More >

Wolfgang Baer¹, Rita Pizzi²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.6, No.1, pp. 51-71, 2008, DOI:10.3970/icces.2008.006.051

Abstract The difficulties encountered in explaining the capacities of the human brain to generate conscious experiences with a neuron switching model has lead researchers to speculate that quantum phenomena may be involved in the human thinking process. This speculation goes beyond acknowledgement of the quantum mechanical basis for bio-molecular chemistry but suggests the architecture of brain functioning parallels the architecture of quantum computers. In this model classically observed neural components act like transmitting and receiving channels to quantum elements analogous to the state-preparation and measurement components in quantum computer architectures. Theories proposed by Penrose and Hameroff More >