Background: Data authentication is vital nowadays, as the development of the internet and
its applications allow users to have all-time data availability, attracting attention towards …

Abstract System security is very important, especially in the age that we live in. One of the
ways to secure data is by creating a password that makes it difficult for unauthorized user to …

The paper presents a secure and usable variant of the Game Changer Password System,
first proposed by McLennan, Manning, and Tuft. Unlike the initial proposal based on …