HMAC Generator

Compute HMAC (Hash-based Message Authentication Code) with a secret key.

Plain text to compute the HMAC

Secret key

Hashing function

Output encoding

HMAC of your text

About HMAC

What is HMAC?

HMAC (Hash-based Message Authentication Code) is a specific type of MAC involving a cryptographic hash function and a secret key. It provides both data integrity and authentication.

Supported Algorithms

MD5 - 128-bit (legacy)
SHA-1 - 160-bit (legacy)
SHA-256 - 256-bit (recommended)
SHA-512 - 512-bit
SHA-3 - Keccak based