Signature
Generate HMAC hash signature to check that SMS notification is actually coming from us.
Last updated
Generate HMAC hash signature to check that SMS notification is actually coming from us.
Last updated
The Signature is calculated based on the timestamp
, request body
and your Secret Key
with HMAC hash using SHA256 Algorithm.
Here is an example on how to generate the Signature for otp
type with Secret Key=12345ABCDE
, timestamp=1706191612
and following request body:
In order to generate the Signature all spaces must be removed from the request body:
Then message for HMAC algorithm has to be formed using following template:
So the message should look like the following:
The computed Signature for this request is:
A free online HMAC Generator for testing is available on .
Here is how we calculated the Signature from above example using Free Formatter