AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND ELECTRONIC DEVICE THAT REDUCE PASSWORD PEEKING BY THIRD PERSON

摘要

An authentication device includes a storage unit, an operation display, and an authentication unit. The storage unit stores a registered password for authentication associated with a user name. The operation display generates a password for temporary authentication in response to entering the user name. The password for temporary authentication is generated by removing a part of the registered password for authentication. The operation display displays removal specifying information for identifying the removal and accepts entering a password candidate. The authentication unit performs authentication when the entered password candidate matches the password for temporary authentication and does not perform authentication when the password does not match the password for temporary authentication.