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MPyC -- Secure Multiparty Computation in Python

Project description

MPyC Secure Multiparty Computation in Python

MPyC supports secure m-party computation tolerating a dishonest minority of up to t passively corrupt parties, where m ≥ 1 and 0 ≤ t ≤ (m-1)/2. The underlying protocols are based on threshold secret sharing over finite fields (using Shamir's threshold scheme as well as pseudorandom secret sharing).

The details of the secure computation protocols are mostly transparent due to the use of sophisticated operator overloading combined with asynchronous evaluation of the associated protocols.

See MPyC homepage for more info and background, and quick links to try MPyC without any install.

Example installs:

python setup.py install

python setup.py install --user

See demos for usage examples.

Notes:

  1. Python 3.6+ (Python 3.5 or lower is not sufficient).

  2. Installing package gmpy2 is optional, but will considerably enhance the performance of mpyc. On Linux, pip install gmpy2 should do the job, but on Windows, this may fail with compiler errors. Fortunately, ready-to-go Python wheels for gmpy2 can be downloaded from Christoph Gohlke's excellent Unofficial Windows Binaries for Python Extension Packages webpage. Use, for example, pip install gmpy2-2.0.8-cp36-cp36m-win_amd64.whl to finish installation.

  3. Use run-all.sh or run-all.bat in the demos directory to have a quick look at some demos. Also note the example Windows batch files in the docs and tests directories.

  4. Directory demos\.config contains configuration info used to run MPyC with multiple parties. Also, Windows batch file 'gen.bat' shows how to generate fresh key material for SSL. OpenSSL is required to generate SSL key material of your own, use pip install pyOpenSSL.

  5. To use the Jupyter notebooks demos\*.ipynb, you need to have Jupyter installed, e.g., using pip install jupyter. The latest version of Jupyter will come with IPython 7.0+, which supports top-level await. Instead of mpc.run(mpc.start()) one can now simply write await mpc.start() anywhere in a notebook cell, even outside a coroutine.

Copyright © 2018-2019 Berry Schoenmakers

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