Python interface to CryptoSys PKI
This is a free interface to the core CryptoSys PKI Pro library, which must be installed on your system. CryptoSys PKI Pro is available from http://www.cryptosys.net/pki/.
Requires: Python 2 only (probably requires 2.6 or above) on Windows platforms only.
All code in is one module cryptosyspki.py for simplicity of distribution. All methods are static methods.
This is designed to use in Python’s REPL environment (we were attempting to write our own but gave up because Python is easier and better).
We’ve kept the naming convention similar to the C# interface http://www.cryptosys.net/pki/dotnetpki/ which in turn mirrored the C function names, using the Python “style” of lowercase and underscores for method names.
FOO_BarBaz (C function) --> Foo.BarBaz (C# method) --> Foo.bar_baz (Py)
But we’ve taken the opportunity to rename a few awkwardly-named functions from the C# code (usually caused by our own bad early decisions back in the day or convoluted attempts to add new features).
Please treat this release as provisional regarding the naming of the methods. We would very much like feedback on the code, especially suggestions on naming that reduce the amount of typing or make things simpler. Contact us at http://www.cryptosys.net/contact/.
For the moment, we reserve the right to change the method names if we can see a better way (in our opinion, of course).
The in-line documention is deliberately sparse. Please refer to the main manual for more details of each method http://www.cryptosys.net/pki/manpki/. There is a cross-reference table on our website.
There is a series of tests in test\test_pki.py. This requires a rather complicated setup with a subdirectory work in the same folder as the test_pki.py file which should contain all the required test files, available separately in the file pkiPythonTestFiles.zip. The test function then creates a temporary subdirectory which is deleted automatically.
test/ test_pki.py # this module work/ # this _must_ exist <all required test files> pki.tmp.XXXXXXXX/ # created by `setup_temp_dir()` <copy of all required test files> <files created by tests>
We’ve tested this using the Python 2.7.11 interpreter and IDLE, the PyDev environment in Eclipse, and using py.test.
To use in Python’s REPL:
>>> from cryptosyspki import * >>> Gen.version() 110100 >>> Hash.hex_from_data('abc') 'a9993e364706816aba3e25717850c26c9cd0d89d' >>> Hash.hex_from_data('abc', Hash.Alg.SHA256) 'ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad' >>> h = Hash.data('abc') >>> print Cnv.tohex(h) A9993E364706816ABA3E25717850C26C9CD0D89D
If you don’t like import * and find cryptosyspki a bit long to type each time, try
>>> import cryptosyspki as pki >>> pki.Gen.version() 110100
The source code has been checked by flake8 ignoring error codes E501,E701,E221,E222 “line too long”, “multiple statements on one line (colon)”, “multiple spaces before/after operator” (correspondence on these issues will not be entered into!).
And, yes, we use the old Python 2 print statement a lot because we like it and hate the new print() function, so please don’t write in suggesting we should use from __future__ to make it a function.
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