The author has now released their own implementation which is a lot better in every way, I'm just keeping this repo for historical purposes
A toy partial implementation of Solving Multivariate Coppersmith Problems with Known Moduli, which generalizes the finding of small roots of polynomials modulo integers.
It makes use of Gröbner bases to find optimal* shift polynomials for systems of polynomial equations, possibly with different moduli. The current state of the code is highly non-optimized and any contributions are welcome. See examples.py for usage.
None of the symbolic precomputation in the paper is currently implemented.
* "Optimal" is defined in the paper