Skip to content

Advanced cryptogaphy comment #2619

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
May 2, 2020
Merged

Advanced cryptogaphy comment #2619

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
24837b3
Advanced cryptogaphy comment
Apr 29, 2020
0993ce8
Check if cryptography >= 2.0.0 is available
guedou May 2, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 9 additions & 5 deletions scapy/config.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -378,20 +378,24 @@ def _version_checker(module, minver):

def isCryptographyValid():
"""
Check if the cryptography library is present, and if it is recent enough
for most usages in scapy (v1.7 or later).
Check if the cryptography module >= 2.0.0 is present. This is the minimum
version for most usages in Scapy.
"""
try:
import cryptography
except ImportError:
return False
return _version_checker(cryptography, (1, 7))
return _version_checker(cryptography, (2, 0, 0))


def isCryptographyAdvanced():
"""
Check if the cryptography library is present, and if it supports X25519,
ChaCha20Poly1305 and such (v2.0 or later).
Check if the cryptography module is present, and if it supports X25519,
ChaCha20Poly1305 and such.

Notes:
- cryptography >= 2.0 is required
- OpenSSL >= 1.1.0 is required
"""
try:
from cryptography.hazmat.primitives.asymmetric.x25519 import X25519PrivateKey # noqa: E501
Expand Down