HMAC
N/A
HMAC
HMAC · N/A · HMAC · aych-mak · Hash-based Message Authentication Code · Cryptography · integrity · hashing · apisCryptographyHash-based Message Authentication Code/aych-mak/
Also known as: Hash-based Message Authentication Code
Last updated August 9, 2026
Definition
HMAC combines a secret key with a hash function to verify message integrity and authenticity — widely used in APIs and tokens.
Real-World Example
A webhook signature computed with HMAC-SHA256 so receivers can detect tampering.
References
Related terms
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