There are three factors of authentication: What is Username and Password AuthenticationĪuthentication is the process of verifying who a user claims to be.
Since then, we've been using watchwords, now known as passwords, to verify someone's identity.īut does possessing knowledge of something actually confirm one's identity? In this article, you'll learn what username and password authentication is, some of the challenges that come with it, and one simple solution to address most of these challenges. These watchwords were required for soldiers to identify themselves as Roman soldiers so they could enter certain areas. Roman soldiers had to retrieve the tablets every evening at sunset and share them with their unit so that they would know the watchword for the following day. In Ancient Rome, a new watchword was assigned every day and engraved into a tablet.
Passwords have been used throughout history to verify someone's identity by checking if they possess the knowledge required (i.e., a password) to access something.
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