Password Authentication
Password authentication is a security mechanism that verifies a user's identity by requiring them to provide a secret password known only to them and the system. It is one of the most common forms of authentication used in digital systems, from websites to operating systems, to grant access to protected resources. The process typically involves comparing a user-input password against a stored credential (often hashed and salted) to confirm legitimacy.
Developers should learn password authentication to implement secure user login systems in applications, ensuring data privacy and access control. It is essential for any system requiring user accounts, such as web apps, mobile apps, or enterprise software, to prevent unauthorized access. Understanding best practices like hashing, salting, and rate-limiting is crucial to mitigate risks like brute-force attacks and data breaches.