Visual representation of post-quantum cryptographic algorithm Kyber

Cryptographic algorithms form the foundation of protocols and applications that ensure confidentiality, integrity, and availability in modern information and communication technologies. These algorithms are broadly classified into symmetric and asymmetric cryptography. However, with the advancement of quantum computing, the mathematical foundations of current asymmetric cryptographic algorithms may become vulnerable. To address this challenge, efforts are underway to standardize post-quantum cryptographic algorithms that remain secure even in the presence of quantum computers. CRYSTALS Kyber post-quantum cryptographic algorithm is one of the most promising candidates for standardization due to its strong mathematical foundation and exceptional efficiency. Its security is based on the mathematical lattice problem, more precisely the Module-LWE problem. Although well documented, the Kyber algorithm is complex and difficult to understand. This paper describes the development of a visual representation of the Kyber algorithm, thus enabling a more intuitive understanding of its operations and structure. The solution is specially adapted to be used for educational purposes, with the intention of facilitating the acquisition of knowledge about new concepts in the field of data protection.