sigma-compiler 0.2.3

Crate for automatically generating code for sigma zero-knowledge proof protocols of more complex statements than are supported by the sigma-proofs crate. The statements given to this crate are compiled into statements about linear combinations of points, and transformed into the sigma-proofs API.
Documentation 
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#![allow(non_snake_case)]
use curve25519_dalek::ristretto::RistrettoPoint as G;
use group::Group;
use sigma_compiler::*;

#[test]
fn subtract_test() -> sigma_proofs::errors::Result<()> {
    sigma_compiler! { proof,
        (x),
        (C, const cind B),
        C = (x-1)*B,
    }

    type Scalar = <G as Group>::Scalar;
    let mut rng = rand::thread_rng();
    let B = G::generator();
    let x = Scalar::random(&mut rng);
    let C = (x - Scalar::ONE) * B;

    let instance = proof::Instance { C, B };
    let witness = proof::Witness { x };

    let proof = proof::prove(&instance, &witness, b"subtract_test", &mut rng)?;
    proof::verify(&instance, &proof, b"subtract_test")
}