HMAC-SHA3 Generator

Generate Hash-based Message Authentication Codes (HMAC) using the SHA-3 (Keccak) algorithm and a secret key.

Secret Key

Input Message

Uppercase

Output Length:

HMAC-SHA3 Output

What is HMAC-SHA3?

HMAC-SHA3 combines the security of the HMAC construct with the Keccak (SHA-3) hash function. It offers a cryptographic alternative to the SHA-2 family, providing strong security against various attacks.

Why SHA-3?

SHA-3 uses the "sponge" construction, making it structurally different from SHA-1 and SHA-2. Use it for modern authentication needs where you want to diversify your cryptographic primitive portfolio.