[Cryptography-dev] paramiko.SSHClient cryptography

[Mario Saornil García]

Good morning,

Sorry the inconveniences.

I write because obtained the next exception and I don´t know found solution.

The same code works perfectly with python 3.7 and cryptography 2.4.4 but I
don´t use python > 3.5 because I need execute my code in a Windows XP.

I make different test:

   1. python 3.4.4 + crytpgraphy=2.4.2
   2. python 3.4.4 + crytpgraphy=2.5
   3. python 2.7.9, but I tried install cryptography==2.9 obtained more
   errors.

Please can you help me?

Regards,

1.
****************************************************************
Unknown exception: Raw
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 2083, in
run self._handler_table[ptype](self, m)
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 2199, in
_negotiate_keys self.kex_engine.start_kex()
  File "C:\Python34\lib\site-packages\paramiko\kex_curve25519.py", line 54,
in start_kex serialization.Encoding.Raw, serialization.PublicFormat.Raw
  File "C:\Python34\lib\enum.py", line 255, in __getattr__
    raise AttributeError(name) from None
AttributeError: Raw

Exception: Raw
****************************************************************

2.
****************************************************************
Traceback (most recent call last):
  File "ssh_client_pk2.py", line 3, in <module>
    import paramiko
  File "C:\Python34\lib\site-packages\paramiko\__init__.py", line 22, in
<module> from paramiko.transport import SecurityOptions, Transport
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 129, in
<module> class Transport(threading.Thread, ClosingContextManager):
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 190, in
Transport
    if KexCurve25519.is_available():
  File "C:\Python34\lib\site-packages\paramiko\kex_curve25519.py", line 30,
in i
s_available
    X25519PrivateKey.generate()
  File
"C:\Python34\lib\site-packages\cryptography\hazmat\primitives\asymmetric\x25519.py",
line 38, in generate
****************************************************************

3.
****************************************************************
Traceback (most recent call last):
  File "xx.py", line 3, in <module>
    import paramiko
  File "C:\Python34\lib\site-packages\paramiko\__init__.py", line 22, in
<module> from paramiko.transport import SecurityOptions, Transport
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 129, in
<module> class Transport(threading.Thread, ClosingContextManager):
  File "C:\Python34\lib\site-packages\paramiko\transport.py", line 190, in
Transport if KexCurve25519.is_available():
  File "C:\Python34\lib\site-packages\paramiko\kex_curve25519.py", line 30,
in is_available X25519PrivateKey.generate()
  File
"C:\Python34\lib\site-packages\cryptography\hazmat\primitives\asymmetric\x25519.py",
line 38, in generate from cryptography.hazmat.backends.openssl.backend
import backend
  File
"C:\Python34\lib\site-packages\cryptography\hazmat\backends\openssl\__init__.py",
line 7, in <module> from cryptography.hazmat.backends.openssl.backend
import backend
  File
"C:\Python34\lib\site-packages\cryptography\hazmat\backends\openssl\backend.py",
line 71, in <module> from cryptography.hazmat.bindings.openssl import
binding
  File
"C:\Python34\lib\site-packages\cryptography\hazmat\bindings\openssl\binding.py",
line 15, in <module> from cryptography.hazmat.bindings._openssl import ffi,
lib
ImportError: DLL load failed: No se puede encontrar el módulo especificado.
****************************************************************

Best Regards,
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