ExpanderCompilerCollection

Expander is a proof generation backend for the Polyhedra Network. The ExpanderCompilerCollection is a component of the Expander proof system. It transforms circuits written in gnark into an intermediate representation (IR) of a layered circuit. This IR can later be used by the Expander prover to generate proofs.

Documentation

Documentation is available at Expander Compiler Collection Documentation.

Using this Library

To incorporate the compiler into your Go project, include the following import statement in your code:

import "github.com/PolyhedraZK/ExpanderCompilerCollection"

We also have a Rust frontend similar to gnark.

Example

Refer to this example for a practical demonstration of our compiler. In this example, we illustrate how a gnark circuit can be compiled using ExpanderCompilerCollection. The output of this example includes a circuit description file "circuit.txt" and a corresponding witnesses file "witness.txt". Our prover, Expander, utilizes these IRs to generate the actual proof.

Acknowledgement

We extend our gratitude to the following projects, whose prior work has been crucial in bringing this project to fruition:

gnark: our frontend language is based on gnark's frontend.

Future Roadmap

As a compiler collection, we will support more circuit frontend languages in the near term.

Features in Progress

• On-chain verifier generation
• Extended in-circuit randomness generation