/**
* @param PersonInterface $subject
* @param ClientMetadata|null $metadata
* @return string
*/
public function getSubjectIdentifier(PersonInterface $subject, ClientMetadata $metadata = null)
{
$id = $subject->getId();
if ($metadata === null || $metadata->getSubjectType() !== 'pairwise') {
return $id;
}
if ($metadata->getSubjectType() === 'pairwise') {
$sectorIdentifier = $metadata->getSectorIdentifier();
$salt = $this->pairwiseSubjectIdSalt;
$pairwise = hash('sha256', $sectorIdentifier . $id . $salt);
return $pairwise;
}
}