/

HMAC Generator

Generate HMAC (Hash-based Message Authentication Code) signatures from text input using a secret key. HMAC provides authentication and integrity verification for messages. Supports multiple hash algorithms including SHA-256, SHA-512, and MD5.

Input Text

Secret Key

HMAC Signature

Related Tools

MD5 Hash Generator

Generate MD5 hash from text

SHA-256 Hash Generator

Generate SHA-256 hash from text

SHA-1 Hash Generator

Generate SHA-1 hash from text

Frequently Asked Questions

What is HMAC used for?

HMAC is used for message authentication, API security, digital signatures, and ensuring data integrity in communication.

What hash algorithms are supported?

The tool supports SHA-256, SHA-512, SHA-1, and MD5 hash algorithms for HMAC generation.

Do I need a secret key?

Yes, HMAC requires a secret key to generate the signature. The same key must be used to verify the signature.