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What are passkeys and how do they work?

Blog post from Clerk

Post Details
Company
Date Published
Author
Brian Morrison II
Word Count
1,349
Language
English
Hacker News Points
-
Summary

Passkeys represent a significant advancement towards a passwordless future by enabling users to sign in using their devices or biometric data, offering both convenience and security through public-key cryptography. These cryptographically generated keys, stored on devices like smartphones or hardware tokens, consist of a public key sent to the service and a private key kept securely on the device, ensuring a secure login process without manually entering information. Passkeys surpass traditional username and password methods by providing built-in multifactor authentication, eliminating the risk of password reuse and phishing attacks, and enhancing credential strength against brute-force attempts. Their integration into services, such as those supported by Clerk, allows users to easily adopt this secure authentication method, marking a shift towards more streamlined and safer digital experiences.