Session-based authentication is the traditional approach to managing user identity in web applications. Unlike stateless JWT authentication where the token itself contains all user data, sessions…
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Passport.js has dominated Node.js authentication for over a decade because it solves a fundamental problem: authentication is complex, but it shouldn’t be complicated. Instead of building…
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• SSH key authentication uses asymmetric cryptography to eliminate password transmission over networks, making brute-force attacks ineffective and enabling secure automation
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JSON Web Tokens (JWT) have become the de facto standard for stateless authentication in modern web applications. Unlike traditional session-based authentication where the server maintains session…
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JSON Web Tokens (JWT) solve a fundamental problem in distributed systems: how do you authenticate users without maintaining server-side session state? A JWT is a self-contained token with three parts…
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HMAC (Hash-based Message Authentication Code) is a specific construction for creating a message authentication code using a cryptographic hash function combined with a secret key. Unlike plain…
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Every application eventually faces the same question: how do we know who our users are, and what should they be allowed to do? These are two distinct problems. Authentication verifies identity….
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In 2012, LinkedIn suffered a breach that exposed 6.5 million password hashes. Because they used unsalted SHA-1, attackers cracked 90% of them within days. The 2013 Adobe breach was worse: 153 million…
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