Authentication
About
Securing user access to applications and data is more critical than ever. Authentication, the process of verifying the identity of a user or system, plays a foundational role in safeguarding systems from unauthorized access and protecting sensitive information. This verification can take many forms, each tailored to balance security with user convenience.
Core Principles of Authentication
Identity Verification: Ensures that the person or entity trying to gain access is authentic.
Access Control: Grants or denies access based on the authenticated identity.
Security and Privacy: Protects sensitive data by limiting access to authorized users.
Categories of Authentication Factors
Authentication methods are often categorized by the type of "factor" they use. These factors are based on different forms of verification:
Something You Know: Information only the user should know, like a password or PIN.
Something You Have: A physical item in the user's possession, like a smartphone, security token, or smart card.
Something You Are: Unique biological traits, such as fingerprints, facial features, or retinal patterns (biometrics).
Somewhere You Are: Location-based authentication, where access is granted based on the user’s geographic location.
Something You Do: Behavioral patterns, like typing speed, rhythm, or swiping patterns on a touch screen.
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