Mailman 3 January 2026 - Cryptography-dev

PyCA cryptography 46.0.4 released
by Paul Kehrer Jan. 28, 2026

Jan. 28, 2026

PyCA cryptography 46.0.4 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, X.509, key derivation functions, and much more. We support Python 3.8+, and PyPy3 3 .11. Changelog (https://cryptography.io/en/latest/changelog/#v46-0-4) * Dropped support for win_arm64 wheels. * Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.5.5. -Paul Kehrer (reaperhulk)

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Invitation: Brief interview on (partially) migrating pyca/cryptography to Rust (TU Delft study)
by Jort van Driel Jan. 20, 2026

Jan. 20, 2026

Dear maintainers of pyca/cryptography, I hope you are well. I am reaching out to ask if you would be open to having a brief conversation about (partially) migrating your cryptography project to Rust. To quickly introduce my work: my name is Jort van Driel, and I am a master's student at Delft University of Technology. I am currently researching how the quality of open-source projects changes when they (partially) migrate to Rust. I came across your project on GitHub and noticed that it underwent such a migration. I would greatly appreciate the opportunity to learn more about your experience. If you are not the right person to speak to, please feel free to forward this email to a colleague who was involved. The conversation will be a short 20-minute interview about your reasons for migrating, the process itself, and the observed effects. It is important to note that: * The anonymised results will be used for research purposes and may be published in the TU Delft Repository and elsewhere. * All data will be handled confidentially. The interview will focus solely on your open-source project and will not ask for any personal details. I will use the transcription feature in Microsoft Teams to take pseudonymized notes and I will analyse your repository. No additional data will be collected. * Participation in this study is entirely voluntary, and you may withdraw at any time. You can skip any questions and exclude your answers entirely until they are fully anonymised, which will happen two weeks after the interview. If you are interested in participating, you can select a time here: https://app.cal.eu/jrvandriel/interview. If not, no worries at all, and thank you for your time. Best regards, Jort van Driel Master student, Delft University of Technology

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Create a new thread in Cryptography-dev
by 68124630121＠lawasri.tru.ac.th Jan. 18, 2026

Jan. 18, 2026

Create a new thread in Cryptography-dev

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The State of OpenSSL and pyca/cryptography
by Paul Kehrer Jan. 14, 2026

Jan. 14, 2026

We've published a statement (based on an invited talk we gave at the inauguarl OpenSSL conference in late 2025) on the pyca/cryptography project website about our deep concerns with OpenSSL's current trajectory and how we intend to move forward. https://cryptography.io/en/latest/statements/state-of-openssl/ -Paul (reaperhulk)

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