    def __init__(self, repository, key, manifest, path=None, sync=True):
        self.timestamp = None
        self.txn_active = False
        self.repository = repository
        self.key = key
        self.manifest = manifest
        self.path = path or os.path.join(get_cache_dir(), hexlify(repository.id).decode('ascii'))
        if not os.path.exists(self.path):
            self.create()
        self.open()
        if sync and self.manifest.id != self.manifest_id:
            # If repository is older than the cache something fishy is going on
            if self.timestamp and self.timestamp > manifest.timestamp:
                raise self.RepositoryReplay()
            self.sync()
            self.commit()
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.