Аналіз алгоритмів побудови эцп sphincs та sphincs+

Abstract

As e-commerce has become more important in society, the need to certify the origin of exchanged information has arisen. Modern digital signatures enhance security based on the difficulty of solving a mathematical problem, such as finding the factors of large numbers. Unfortunately, the task of solving these problems becomes feasible when a quantum computer is available. To face this new problem, new quantum digital signature schemes are in development to provide protection against tampering, even from parties in possession of quantum computers and using powerful quantum cheating strategies. Object of a research is the two post-quantum algorithms of the digital signature SPHINCS and SPHINCS+, which were submitted to the NIST post-quantum crypto project.