# Enhancement Request - HMAC Auth

**URL:** https://connective.celigo.com/t/enhancement-request-hmac-auth/89
**Category:** Integrator.io
**Tags:** authentication, headers, webhook, typeform
**Created:** [July 3, 2024, 7:59am UTC](https://connective.celigo.com/t/enhancement-request-hmac-auth/89 "2024-07-03T07:59:09Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![hariprasathudayakuma](https://avatars.discourse-cdn.com/v4/letter/h/e9a140/32.png) [@hariprasathudayakuma](https://connective.celigo.com/u/hariprasathudayakuma)
#### Post date: [July 3, 2024, 7:59am UTC](https://connective.celigo.com/t/enhancement-request-hmac-auth/89/1 "2024-07-03T07:59:09Z")

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Hi Team, Good day!

I am working with Type form to push their data to Celigo Webhook. Typeform creates the signature and appends "sha256" as a prefix to the header. But Celigo assumes the signature is created with (payload + Secret) with no pre-fixes. Thus it fails with 401. I tried both the normal and pre-fixed scenario from postman and it behaves as expected - works only for non prefixed. Is there a way to set this auth in such a way that the format of the header is configurable in Celigo ?

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### Author: ![ommishra](https://avatars.discourse-cdn.com/v4/letter/o/f08c70/32.png) [@ommishra](https://connective.celigo.com/u/ommishra)
#### Post date: [July 10, 2024, 4:01pm UTC](https://connective.celigo.com/t/enhancement-request-hmac-auth/89/2 "2024-07-10T16:01:03Z")

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Hi Hariprasath,

Thank you so much for suggesting an enhancement to our Webhook. Currently, we don’t see any workaround for this, but we will be prioritizing it soon. I will keep you posted once we release the enhancement.

Thanks,  
Om Mishra