public function shareDocument(Document $document, User $requester, User $shareWith, $passPhrase)
{
$requesterShare = $document->getShareOf($requester);
if ($requesterShare === null) {
throw new AccessDeniedException('The user does not have access to this document');
}
$encryptionKey = $this->getEncryptionKey($requesterShare, $passPhrase);
$encryptedKey = KeyGen::encrypt($encryptionKey, $shareWith->getPublicKey());
$share = $document->shareWith($shareWith, $encryptedKey);
$this->documentRepository->save($share);
}
