Application of quantum algorithms in secret keys

Abstract

At present, quantum algorithm is a development direction of the early quantum algorithm in thinking. They are generally considered to be largely theoretical because the problems they solve are almost useless. In this paper, the applications of quantum algorithms in quantum key distribution, error correction, authentication and other fields are analyzed. Simon quantum algorithm benefits from the parallelism of quantum algorithms, and its fast finding function period property is used to construct a variety of attack forms, such as discrimination attack, key recovery attack, sliding attack, quantum forgery attack and so on. Simon algorithm uses register conversion to calculate the period in the process of key authentication, and applies this periodic feature to the interrogator in the process of key authentication, so as to achieve accurate key authentication.