[Bug 1618765] Re: TypeError: cannot instantiate ctype 'EVP_MD_CTX' of unknown size

[Bug Watch Updater]

** Changed in: pyopenssl (Debian)
       Status: Unknown => New

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https://bugs.launchpad.net/bugs/1618765

Title:
  TypeError: cannot instantiate ctype 'EVP_MD_CTX' of unknown size

Status in pyopenssl package in Ubuntu:
  In Progress
Status in python-cryptography package in Ubuntu:
  Invalid
Status in pyopenssl package in Debian:
  New

Bug description:
  The new 1.5 update of python-cryptography in yakkety-proposed is
  causing some test failures in various OpenStack packages that use
  crypto - example:

  ==============================
  Failed 1 tests - output below:
  ==============================

  glance.tests.unit.common.test_utils.TestUtils.test_validate_key_cert_key
  ------------------------------------------------------------------------

  Captured traceback:
  ~~~~~~~~~~~~~~~~~~~
      Traceback (most recent call last):
        File "glance/tests/unit/common/test_utils.py", line 276, in test_validate_key_cert_key
          utils.validate_key_cert(keyfile, certfile)
        File "glance/common/utils.py", line 433, in validate_key_cert
          out = crypto.sign(key, data, digest)
        File "/usr/lib/python2.7/dist-packages/OpenSSL/crypto.py", line 2563, in sign
          md_ctx = _ffi.new("EVP_MD_CTX*")
      TypeError: cannot instantiate ctype 'EVP_MD_CTX' of unknown size

  Tests passed fine with 1.4.x.

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