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Mastering Modern Authentication: Cookies, Sessions, JWT, and PASETO

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Mastering Modern Authentication: Cookies, Sessions, JWT, and PASETO

ByteByteGo

Dec 5

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Authentication serves as the first line of defense in ensuring the security of applications and the sensitive data they handle.

Whether it’s a personal banking app, a corporate platform, or an e-commerce website, effective authentication mechanisms are needed to verify the identity of users and safeguard their access to resources.

Authentication ensures that only authorized users gain access to specific data or actions within an application. Without proper authentication, applications are vulnerable to unauthorized access, data breaches, and malicious attacks, potentially resulting in significant financial loss, reputational damage, and privacy violations.

In addition to security, authentication plays a critical role in the user experience. By effectively identifying users, applications can provide personalized services, remember user preferences, and enable functionalities like Single Sign-On (SSO) across platforms.

With evolving threats, implementing secure and efficient authentication is more challenging than ever. Developers must navigate between competing priorities such as:

Security: Ensuring protection against different attack types like session hijacking, token theft, and replay attacks.
Scalability: Supporting millions of users without compromising performance.
User Experience: Maintaining ease of use while applying strong security measures.

To tackle these challenges, developers rely on various authentication mechanisms. In this post, we’ll explore multiple authentication mechanisms used in modern applications and also study their advantages and disadvantages.