rsakey.py 文件源码

def __init__(self, msg=None, data=None, filename=None, password=None,
                 key=None, file_obj=None):
        self.key = None
        if file_obj is not None:
            self._from_private_key(file_obj, password)
            return
        if filename is not None:
            self._from_private_key_file(filename, password)
            return
        if (msg is None) and (data is not None):
            msg = Message(data)
        if key is not None:
            self.key = key
        else:
            if msg is None:
                raise SSHException('Key object may not be empty')
            if msg.get_text() != 'ssh-rsa':
                raise SSHException('Invalid key')
            self.key = rsa.RSAPublicNumbers(
                e=msg.get_mpint(), n=msg.get_mpint()
            ).public_key(default_backend())