Cryptography-dev

Download

cryptography-dev@python.org

July 2022

2 participants
2 discussions

regarding openSSL bindings in python-cryptography package
by SUDHAKAR REDDY KHANDI July 11, 2022

July 11, 2022

hi i am using python-cryptography to sign a http request using RSA. I am using this on the linux platform. In my source tree, I don't see _openssl.so under the cryptography/hazmat/bindings directory, but on my target device, I see this .so under the above mentioned directory. I guess this is generated from the build. Now,my questions are 1) what is this _openssl.so ? Is this a lib crypto library from the openssl project ? if yes, what is the version of this library? 2) when i call _rsa_sig_sign()(from rsa.py file) , does it use the relevant evp function from above .so . does evp_pkey_sign is implemented in _openssl.so ? 3) my target machine already has libcrpto.so and libssl.so installed in standard lib directory ( this version has our own changes), so, for any crypto operations we would like to use this library, how do we make sure crpyto operations from python-cryptography are actually using the libcrpto installed under standard lib dir (/usr/lib) regards Sudhakar

2 1

PyCA cryptography 37.0.4
by Alex Gaynor July 5, 2022

July 5, 2022

PyCA cryptography 37.0.4 has been released to PyPI. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, asymmetric algorithms, message digests, X509, key derivation functions, and much more. We support Python 3.6+, and PyPy3. Changelog (https://cryptography.io/en/latest/changelog/#v37-0-4): * Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.0.5. Alex -- All that is necessary for evil to succeed is for good people to do nothing.

1 0