Generating an API Signature - Kayako Developer Resources - Kayako Wiki

gistfile1.php

<?php
 
   $apiKey = "apikey";
 
   $secretKey = "secretkey";
 
   // Generates a random string of ten digits
   $salt = mt_rand();
 
   // Computes the signature by hashing the salt with the secret key as the key
   $signature = hash_hmac('sha256', $salt, $secretKey, true);
 
   // base64 encode...
   $encodedSignature = base64_encode($signature);
 
   // urlencode...
   $encodedSignature = urlencode($encodedSignature);
 
   echo "Voila! A signature: " . $encodedSignature;
 
?>