This is a halo2 backend for the Noir Programming Language
Get detailed documentation on this repository!
WARNING: This crate is experimental and under development. Expect bugs and unoptimized circuits.
This crate will not be possible without
- barretenberg backend
- halo2-zcash
- halo2-pse
- halo2-axiom
- the gadets and educational resources provided by the halo2 community see awesome-halo2
git clone https://github.com/Mach-34/noir --branch demo-0.1.3
cd noir
To install pse's halo2 as backend:
cargo install --path crates/nargo_cli --locked --features pse_halo2_backend --no-default-features
To install axioms's halo2 as backend:
cargo install --path crates/nargo_cli --locked --features axiom_halo2_backend --no-default-features
Notice that axiom's fork is built on pse's fork and should be similar.
cd to the crates/noir_halo2_backend_common/test_programs folder of this crate and choose one of the tests/examples eg. 3_add
cd 3_add
to generate proof run
nargo prove add
to verify proof run
nargo verify add
to generates a solidity verifier smart contract for the program run
nargo codegen-verifier
| Features | halo2-pse | halo2-axiom |
|---|---|---|
| arithmetic gates | ✔️ | ✔️ |
| range proofs | ✔️ | ✔️ |
| and gates | ✔️ | ✔️ |
| xor | ||
| sha256 | ||
| blake2s | ||
| schnorr_verify | ||
| pedersen | ||
| hash_to_field | ||
| ecdsa_secp256k1 | ||
| fixed_base_scalar_mul | ||
| keccak256 | ||
| keccak256_variable_length |
✔️ indicates that the feature is present. The first three features are present in both halo2-pse and halo2-axiom.
This library is licensed under either of the following licenses, at your discretion.
Unless you explicitly state otherwise, any contribution that you submit to this library shall be dual licensed as above (as defined in the Apache v2 License), without any additional terms or conditions.