Import InvalidSignature from the correct location

[alex]

cryptography.hazmat.backends.openssl.ec was not a public API, but an implementation detail, and is likely to be removed (see pyca/cryptography#9024)

edited by gpotter2 for search purposes:

Traceback (most recent call last):
  File "<input>", line 2, in <module>
  File "/home/runner/work/cryptography/cryptography/scapy/scapy/layers/tls/handshake.py", line 42, in <module>
    from scapy.layers.tls.cert import Cert
  File "/home/runner/work/cryptography/cryptography/scapy/scapy/layers/tls/cert.py", line 51, in <module>
    from cryptography.hazmat.backends.openssl.ec import InvalidSignature
ModuleNotFoundError: No module named 'cryptography.hazmat.backends.openssl.ec'

[codecov]

Codecov Report

Merging #4024 (a7cdb97) into master (3da71cb) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #4024      +/-   ##
==========================================
- Coverage   81.94%   81.93%   -0.01%     
==========================================
  Files         328      328              
  Lines       75415    75415              
==========================================
- Hits        61799    61795       -4     
- Misses      13616    13620       +4     

Impacted Files	Coverage Δ
scapy/layers/tls/cert.py	88.15% <100.00%> (ø)

... and 4 files with indirect coverage changes

[evverx]

I wonder if it's related to pyca/cryptography#9024 in any way? :-)

[evverx]

As far as I understand with that cryptography PR merged scapy without this patch (< 2.6) should stop working with the first version of cryptography where ec is removed. I think at least it should probably be mentioned in the commit message to make it easier for people backporting stuff to find this patch.

[alex]

Ok, updated the description

[gpotter2]

Thanks a lot for the heads-up and PR @alex !