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Pure Python RSA implementation

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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.

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

Major changes in 4.0

Version 3.4 was the last version in the 3.x range. Version 4.0 drops the following modules,
as they are insecure:

  • rsa._version133
  • rsa._version200
  • rsa.bigfile
  • rsa.varblock

Those modules were marked as deprecated in version 3.4.

Furthermore, in 4.0 the I/O functions is streamlined to always work with bytes on all
supported versions of Python.

Version 4.0 drops support for Python 2.6 and 3.3.