/**
* Generates a MAC key that corresponds to the parameter set specified by the first parameter.
*
* @param Dataset $dataset
* @param string $requestType Key of 'mac param order definition' array
* @return string
*/
private function generateMacKey(Dataset $dataset, $requestType)
{
$macDefinition = $this->getParamMacOrderDefinition();
$hashFunction = $this->getConfParam('hash_function', self::DEFAULT_HASH_FUNCTION);
$macKey = '';
foreach ($macDefinition[$requestType] as $param) {
$macKey .= sprintf('%s&', $dataset->hasParam($param) ? $dataset->getParam($param) : null);
}
$macKey .= $this->getConfParam('MAC_SECRET') . '&';
$macKey = \strtoupper($hashFunction($macKey));
return $macKey;
}
