The design of Access Control System based on dynamic audio token

Access Control System is evolved from the traditional lock, as the name suggests, it is used to regulate the entrance channel. Password access control system, contactless card access control system and fingerprint access control system is the most used access control system. But these access control systems have many security risks: the password is easy to leak, contactless cards are very easy to lose and fingerprints can be easily extracted by criminals. Therefore, in this article I designed an access control system based on dynamic audio token on android operating system. Experiments show that this system is not only safe, but also easy to use, users can complete the process of authentication conveniently by installing an application on their mobile phone.