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use ark_circom::{CircomBuilder, CircomConfig};
use ark_std::rand::thread_rng;
use color_eyre::Result;
use ark_bn254::Bn254;
use ark_groth16::{
create_random_proof as prove, generate_random_parameters, prepare_verifying_key, verify_proof,
};
#[test]
fn groth16_proof() -> Result<()> {
let cfg = CircomConfig::<Bn254>::new(
"./test-vectors/mycircuit.wasm",
"./test-vectors/mycircuit.r1cs",
)?;
let mut builder = CircomBuilder::new(cfg);
builder.push_input("a", 3);
builder.push_input("b", 11);
// create an empty instance for setting it up
let circom = builder.setup();
let mut rng = thread_rng();
let params = generate_random_parameters::<Bn254, _, _>(circom, &mut rng)?;
let circom = builder.build()?;
let inputs = circom.get_public_inputs().unwrap();
let proof = prove(circom, &params, &mut rng)?;
let pvk = prepare_verifying_key(&params.vk);
let verified = verify_proof(&pvk, &proof, &inputs)?;
assert!(verified);
Ok(())
}
#[test]
fn groth16_proof_wrong_input() {
let cfg = CircomConfig::<Bn254>::new(
"./test-vectors/mycircuit.wasm",
"./test-vectors/mycircuit.r1cs",
)
.unwrap();
let mut builder = CircomBuilder::new(cfg);
builder.push_input("a", 3);
// This isn't a public input to the circuit, should faild
builder.push_input("foo", 11);
// create an empty instance for setting it up
let circom = builder.setup();
let mut rng = thread_rng();
let _params = generate_random_parameters::<Bn254, _, _>(circom, &mut rng).unwrap();
builder.build().unwrap_err();
}
#[test]
#[cfg(feature = "circom-2")]
fn groth16_proof_circom2() -> Result<()> {
let cfg = CircomConfig::<Bn254>::new(
"./test-vectors/circom2_multiplier2.wasm",
"./test-vectors/circom2_multiplier2.r1cs",
)?;
let mut builder = CircomBuilder::new(cfg);
builder.push_input("a", 3);
builder.push_input("b", 11);
// create an empty instance for setting it up
let circom = builder.setup();
let mut rng = thread_rng();
let params = generate_random_parameters::<Bn254, _, _>(circom, &mut rng)?;
let circom = builder.build()?;
let inputs = circom.get_public_inputs().unwrap();
let proof = prove(circom, &params, &mut rng)?;
let pvk = prepare_verifying_key(&params.vk);
let verified = verify_proof(&pvk, &proof, &inputs)?;
assert!(verified);
Ok(())
}
#[test]
#[cfg(feature = "circom-2")]
fn witness_generation_circom2() -> Result<()> {
let cfg = CircomConfig::<Bn254>::new(
"./test-vectors/circom2_multiplier2.wasm",
"./test-vectors/circom2_multiplier2.r1cs",
)?;
let mut builder = CircomBuilder::new(cfg);
builder.push_input("a", 3);
builder.push_input("b", 0x100000000u64 - 1);
assert!(builder.build().is_ok());
Ok(())
}