What is HMAC i still dont understand this part? Is it RSA encrytion? | Hacker News

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		coolThingsFirst on April 15, 2025 \| parent \| context \| favorite \| on: Behind the 6-digit code: Building HOTP and TOTP fr... What is HMAC i still dont understand this part? Is it RSA encrytion?

dogacel on April 15, 2025 [–]

No, RSA is asymetric, where it has a public/private key pair.

HMAC is symetric, it only has a secret and it can be used to hash values one-way.

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