Python-RSA has been archived

Hi folks,

I'm Sybren, one of the original authors and the maintainer of this project. Unfortunately I don't have the time and brain space left to properly maintain Python-RSA. As you can see from the lack of activity on the open issues, and the lack of commits, that has been the case for a while now.

As Python-RSA is included as a dependency in quite a few high-profile projects, I don't feel comfortable handing over the project to someone else. It's just too big of a risk.

Thanks for having used this little library for so long, and in so many projects. I truely didn't expect that when I started working on it. Also big thanks to all the people helping out and improving the project.

There are improvements that haven't made it into a new release. As I said, I don't have the time and the brain space to really investigate and oversee the security impact of all those changes. It's not a decision I've made lightly.

So that's it. If you want to keep the project alive, please fork it. Give it the love it deserves, investigate those yet-unreleased improvements, and have a project that's then already better than how I left this one.

Cheers, Sybren

Pure Python RSA implementation

Python-RSA is a pure-Python RSA implementation. It supports encryption and decryption, signing and verifying signatures, and key generation according to PKCS#1 version 1.5. It can be used as a Python library as well as on the commandline. The code was mostly written by Sybren A. Stüvel.

Documentation can be found at the Python-RSA homepage. For all changes, check the changelog.

Download and install using:

pip install rsa

or download it from the Python Package Index.

The source code is maintained at GitHub and is licensed under the Apache License, version 2.0

Security

Because of how Python internally stores numbers, it is not possible to make a pure-Python program secure against timing attacks. This library is no exception, so use it with care. See #230 and https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/ for more info.

For instructions on how to best report security issues, see our Security Policy.

Setup of Development Environment

python3 -m venv .venv
. ./.venv/bin/activate
pip install poetry
poetry install

Publishing a New Release

Since this project is considered critical on the Python Package Index, two-factor authentication is required. For uploading packages to PyPi, an API key is required; username+password will not work.

First, generate an API token at https://pypi.org/manage/account/token/. Then, use this token when publishing instead of your username and password.

As username, use __token__. As password, use the token itself, including the pypi- prefix.

See https://pypi.org/help/#apitoken for help using API tokens to publish. This is what I have in ~/.pypirc:

[distutils]
index-servers =
    rsa

# Use `twine upload -r rsa` to upload with this token.
[rsa]
  repository = https://upload.pypi.org/legacy/
  username = __token__
  password = pypi-token

. ./.venv/bin/activate

poetry build
twine check dist/rsa-4.10-dev0.tar.gz dist/rsa-4.10-dev0-*.whl
twine upload -r rsa dist/rsa-4.10-dev0.tar.gz dist/rsa-4.10-dev0-*.whl

License

sybrenstuvel/python-rsa

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