diff options
| -rw-r--r-- | paramiko/transport.py | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/paramiko/transport.py b/paramiko/transport.py index 0f3d4426..4a3ae8f4 100644 --- a/paramiko/transport.py +++ b/paramiko/transport.py @@ -71,7 +71,6 @@ from paramiko.ssh_exception import ( from paramiko.util import retry_on_signal, ClosingContextManager, clamp_value - # for thread cleanup _active_threads = [] @@ -110,8 +109,6 @@ class Transport(threading.Thread, ClosingContextManager): 'aes192-cbc', 'aes256-cbc', '3des-cbc', - 'arcfour128', - 'arcfour256', ) _preferred_macs = ( 'hmac-sha2-256', @@ -185,18 +182,6 @@ class Transport(threading.Thread, ClosingContextManager): 'block-size': 8, 'key-size': 24 }, - 'arcfour128': { - 'class': algorithms.ARC4, - 'mode': None, - 'block-size': 8, - 'key-size': 16 - }, - 'arcfour256': { - 'class': algorithms.ARC4, - 'mode': None, - 'block-size': 8, - 'key-size': 32 - }, } @@ -1737,21 +1722,6 @@ class Transport(threading.Thread, ClosingContextManager): def _get_cipher(self, name, key, iv, operation): if name not in self._cipher_info: raise SSHException('Unknown client cipher ' + name) - if name in ('arcfour128', 'arcfour256'): - # arcfour cipher - cipher = Cipher( - self._cipher_info[name]['class'](key), - None, - backend=default_backend() - ) - if operation is self._ENCRYPT: - engine = cipher.encryptor() - else: - engine = cipher.decryptor() - # as per RFC 4345, the first 1536 bytes of keystream - # generated by the cipher MUST be discarded - engine.encrypt(" " * 1536) - return engine else: cipher = Cipher( self._cipher_info[name]['class'](key), |