shamirs 0.1.0.0

Python library with a minimal native implementation of Shamir's Secret Sharing algorithm.

Python library with a minimal native implementation of Shamir’s Secret Sharing algorithm.

Purpose

The library provides functions for computing secret shares given an integer input value, as well as for reassembling an integer from its corresponding shares using Lagrange interpolation over finite fields. The native python random.randint function is used to generate the polynomial when creating shares.

Package Installation and Usage

The package is available on PyPI:

python -m pip install shamirs

The library can be imported in the usual way:

import shamirs

Examples

The library provides functions for splitting a value into a number of shares across a number of parties, and for reassembling those share back into the value they represent:

>>> shares = shamirs.share(5, 3, 17)
>>> shamirs.build(shares, 17)
5
>>> shamirs.build(shamirs.share(123, 12, 15485867), 15485867)
123