pub = block.Bytes
	}
	key, err := x509.ParsePKCS1PublicKey(pub)
	if err != nil {
		return nil, err
	}
	return key, nil
}

// getRawDataer provides an interface for getting raw FS files.
type getRawDataer interface {
	GetRawData(ctx context.Context, volume, file string, fn func(r io.Reader, host string, disk string, filename string, info StatInfo) error) error
}