Arybo

Arybo is a software for manipulating such expressions using bit vectors and gives a bit-per-bit symbolic representation.

The ANF (Algebric Normal Form) form is used, which basically represents boolean expressions using the XOR and AND operators.

The whole documentation is available here: https://pythonhosted.org/arybo/

Quick start

Under Linux/OSX/Windows, Arybo can be installed through pip for Python 2 and 3:

$ pip install arybo

Please note that Python 2 support for pytanque under Windows isn't available, as the official compiler for Python extensions is Visual Studio 2010, which can't compile libpetanque.

You will need at least clang 3.5 or GCC 4.9 to compile the python extension "pytanque" under Linux/OS.

Users of Ubuntu 14.04 need to install GCC 6. See the documentation for detailed instructions: https://github.com/quarkslab/arybo/blob/master/docs/source/setup.rst#notes-for-ubuntu-1404.

More details on the installation process can be found here: https://pythonhosted.org/arybo/setup.html

To quickly use Arybo, you can the IPython shell by simply launching iarybo:

# Starts an IPython interactive shell with 8-bit symbolic variables defined
$ iarybo 8
In [1]: x|0x7f
Out[1]:Vec([
1,
1,
1,
1,
1,
1,
1,
x7
])
In [2]: (x^y)&a
Out[2]:
Vec([
((x0 * a0) + (y0 * a0)),
((x1 * a1) + (y1 * a1)),
((x2 * a2) + (y2 * a2)),
((x3 * a3) + (y3 * a3)),
((x4 * a4) + (y4 * a4)),
((x5 * a5) + (y5 * a5)),
((x6 * a6) + (y6 * a6)),
((x7 * a7) + (y7 * a7))
])

Tutorials can be found here: https://pythonhosted.org/arybo/tutorial.html. Advanced usage examples can be found in the examples directory.

License

This is published under a BSD license (see LICENSE.txt file)

Contact

For any issue, do not hesitate to open an issue/create a pull request on Github.