Help Centre › Functions & Formulas
Compute HMAC signature.
Add it to a process
In the process designer, open the Add step tab. Find Compute HMAC signature under Security, or type its name in the search box, and drag it onto the canvas.
Fields
| Field | Required | What it does |
|---|---|---|
| Text to sign | Yes | Message to sign |
| HMAC secret key | Yes | HMAC key |
| Variable | Yes | Variable name to store the HMAC Default: hmac. |
| Algorithm | No | HMAC algorithm Choices: SHA-256, SHA-512, SHA-1, MD5. Default: sha256. |
What it gives back
{hmac}– HMAC hex digest
See all Security steps.
Tips
- Use HMAC for webhook signature verification (e.g. GitHub, Stripe, Slack)
- Always use SHA-256 or SHA-512 for new integrations