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m0freak/get-hmac.php

Created November 6, 2021 10:35
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get-hmac.php
<?php
//set to the timestamp exactly the same as that provided in the request payload
$data = "2021-11-03T06:17:41.883Z";
//set to the secret that must have been shared between the 2 parties
$secret = "-very-secret-string-";
//sample of the x-auth-token
printf("x-auth-token: %s", base64_encode(hash_hmac('sha512', $data, $secret, true)));
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