TypeError: cannot pickle 'cryptography.hazmat.bindings._rust.openssl.rsa.RSAPublicKey' object

[akozhikkot]

While trying to use SingleTenantAzureAuthorizationCodeBearer with FastAPI with the basic settings and following the example guideline, I am getting this error

TypeError: cannot pickle 'cryptography.hazmat.bindings._rust.openssl.rsa.RSAPublicKey' object

From the logs I can see that it has loaded the settings , auth endpoint , issuer etc.

When a request is send with Bearer token, it throws the above error.

I am using python 3.11 and 5.1.1 of the library

File "C:\Program Files\Python311\Lib\copy.py", line 146, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 206, in _deepcopy_list
append(deepcopy(a, memo))
^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 172, in deepcopy
y = _reconstruct(x, memo, *rv)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 271, in _reconstruct
state = deepcopy(state, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 146, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 231, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 172, in deepcopy
y = _reconstruct(x, memo, *rv)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 271, in _reconstruct
state = deepcopy(state, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 146, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 231, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 172, in deepcopy
y = _reconstruct(x, memo, *rv)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 271, in _reconstruct
state = deepcopy(state, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 146, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 231, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 146, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 231, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\copy.py", line 161, in deepcopy
rv = reductor(4)
^^^^^^^^^^^
TypeError: cannot pickle 'cryptography.hazmat.bindings._rust.openssl.rsa.RSAPublicKey' object

[JonasKs]

What version of cryptography are you using?

[akozhikkot]

Hi @JonasKs , the error was due to trying to validate token obtained with graph api scopes. We are able to move past now after configuring the API scope and permissions on the client.

But we are stumbled on an error INFO:fastapi_azure_auth:Token contains invalid claims. Audience doesn't match.

But looking at jwt.io with the access token we can see the audience same as the client id used to configure authentication.

Any suggestions from your side ?

[JonasKs]

The audience should be matching the backend app, not the OpenAPI / frontend app.

Please do the entire tutorial from start to finish again, it should not give any errors.

[JonasKs]

Closing for inactivity.