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pyOpenSSL 17.1.0

Python wrapper module around the OpenSSL library

Package Documentation

Latest Version: 17.5.0

High-level wrapper around a subset of the OpenSSL library. Includes

  • SSL.Connection objects, wrapping the methods of Python’s portable sockets
  • Callbacks written in Python
  • Extensive error-handling mechanism, mirroring OpenSSL’s error codes

… and much more.

You can find more information in the documentation. Development takes place on GitHub.


If you run into bugs, you can file them in our issue tracker.

We maintain a cryptography-dev mailing list for both user and development discussions.

You can also join #cryptography-dev on Freenode to ask questions or get involved.

Release Information

17.1.0 (2017-06-30)

Backward-incompatible changes:

  • Removed the deprecated OpenSSL.rand.egd() function. Applications should prefer os.urandom() for random number generation. #630
  • Removed the deprecated default digest argument to OpenSSL.crypto.CRL.export(). Callers must now always pass an explicit digest. #652
  • Fixed a bug with ASN1_TIME casting in X509.set_notBefore(), X509.set_notAfter(), Revoked.set_rev_date(), Revoked.set_nextUpdate(), and Revoked.set_lastUpdate(). You must now pass times in the form YYYYMMDDhhmmssZ. YYYYMMDDhhmmss+hhmm and YYYYMMDDhhmmss-hhmm will no longer work. #612


  • Deprecated the legacy “Type” aliases: ContextType, ConnectionType, PKeyType, X509NameType, X509ExtensionType, X509ReqType, X509Type, X509StoreType, CRLType, PKCS7Type, PKCS12Type, NetscapeSPKIType. The names without the “Type”-suffix should be used instead.


  • Added OpenSSL.crypto.X509.from_cryptography() and OpenSSL.crypto.X509.to_cryptography() for converting X.509 certificate to and from pyca/cryptography objects. #640
  • Added OpenSSL.crypto.X509Req.from_cryptography(), OpenSSL.crypto.X509Req.to_cryptography(), OpenSSL.crypto.CRL.from_cryptography(), and OpenSSL.crypto.CRL.to_cryptography() for converting X.509 CSRs and CRLs to and from pyca/cryptography objects. #645
  • Added OpenSSL.debug that allows to get an overview of used library versions (including linked OpenSSL) and other useful runtime information using python -m OpenSSL.debug. #620
  • Added a fallback path to Context.set_default_verify_paths() to accommodate the upcoming release of cryptography manylinux1 wheels. #633

Full changelog.

File Type Py Version Uploaded on Size
pyOpenSSL-17.1.0-py2.py3-none-any.whl (md5, pgp) Python Wheel py2.py3 2017-06-30 52KB
pyOpenSSL-17.1.0.tar.gz (md5, pgp) Source 2017-06-30 166KB