diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/test_transport.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/test_transport.py b/tests/test_transport.py index 485e94f9..7a361080 100644 --- a/tests/test_transport.py +++ b/tests/test_transport.py @@ -23,6 +23,7 @@ Some unit tests for the ssh2 protocol in Transport. from binascii import hexlify from contextlib import contextmanager +import pytest import select import socket import time @@ -1424,6 +1425,27 @@ class TestSHA2SignaturePubkeys(unittest.TestCase): ) as (tc, _): assert tc.is_authenticated() + @requires_sha1_signing + def test_first_client_preferred_algo_used_when_no_server_sig_algs(self): + privkey = RSAKey.from_private_key_file(_support("rsa.key")) + # Server pretending to be an apparently common setup: + # - doesn't support (or have enabled) sha2 + # - also doesn't support (or have enabled) server-sig-algs/ext-info + # This is the scenario in which Paramiko has to guess-the-algo, and + # where servers that don't support sha2 or server-sig-algs give us + # trouble. + server_init = dict(_disable_sha2_pubkey, server_sig_algs=False) + with server( + pubkeys=[privkey], + connect=dict(pkey=privkey), + server_init=server_init, + catch_error=True, + ) as (tc, ts, err): + assert not tc.is_authenticated() + assert isinstance(err, AuthenticationException) + # Oh no! this isn't ssh-rsa, and our server doesn't support sha2! + assert tc._agreed_pubkey_algorithm == "rsa-sha2-512" + def test_sha2_512(self): privkey = RSAKey.from_private_key_file(_support("rsa.key")) with server( |