tornado-packages/phase2-bn254
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export circom-compatible verifying key

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poma 2020-01-31 14:11:52 +08:00
parent 40e2e31e76
commit 02245e457c
No known key found for this signature in database
GPG Key ID: BA20CB01FE165657
2 changed files with 9 additions and 4 deletions
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6
phase2/src/bin/export_keys.rs
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@ -43,6 +43,7 @@ struct ProvingKeyJson {
pub vk_delta_2: Vec<Vec<String>>, pub vk_delta_2: Vec<Vec<String>>,
#[serde(rename = "hExps")] #[serde(rename = "hExps")]
pub h: Vec<Vec<String>>, pub h: Vec<Vec<String>>,
// Todo: add json fields: nPublic, nVars, polsA, polsB, polsC, protocol: groth
} }
#[derive(Serialize, Deserialize)] #[derive(Serialize, Deserialize)]
@ -54,6 +55,9 @@ struct VerifyingKeyJson {
pub vk_gamma_2: Vec<Vec<String>>, pub vk_gamma_2: Vec<Vec<String>>,
pub vk_delta_2: Vec<Vec<String>>, pub vk_delta_2: Vec<Vec<String>>,
pub vk_alfabeta_12: Vec<Vec<Vec<String>>>, pub vk_alfabeta_12: Vec<Vec<Vec<String>>>,
pub protocol: String,
#[serde(rename = "nPublic")]
pub inputs_count: usize,
} }
fn main() { fn main() {
@ -97,6 +101,8 @@ fn main() {
vk_gamma_2: p2_to_vec(&params.vk.gamma_g2), vk_gamma_2: p2_to_vec(&params.vk.gamma_g2),
vk_delta_2: p2_to_vec(&params.vk.delta_g2), vk_delta_2: p2_to_vec(&params.vk.delta_g2),
vk_alfabeta_12: pairing_to_vec(&Bn256::pairing(params.vk.alpha_g1, params.vk.beta_g2)), vk_alfabeta_12: pairing_to_vec(&Bn256::pairing(params.vk.alpha_g1, params.vk.beta_g2)),
inputs_count: params.vk.ic.len() - 1,
protocol: String::from("groth"),
}; };
let pk_json = serde_json::to_string(&proving_key).unwrap(); let pk_json = serde_json::to_string(&proving_key).unwrap();

7
phase2/test.sh
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@ -26,14 +26,13 @@ cargo run --release --bin verify_contribution circuit.json circom2.params circom
cargo run --release --bin contribute circom3.params circom4.params askldfjklasdf cargo run --release --bin contribute circom3.params circom4.params askldfjklasdf
cargo run --release --bin verify_contribution circuit.json circom3.params circom4.params cargo run --release --bin verify_contribution circuit.json circom3.params circom4.params
# generate resulting keys
cargo run --release --bin export_keys circom4.params vk.json pk.json
# create dummy keys in circom format # create dummy keys in circom format
echo "Generating dummy key files..." echo "Generating dummy key files..."
npx snarkjs setup --protocol groth npx snarkjs setup --protocol groth
# generate resulting keys
cargo run --release --bin export_keys circom4.params vk.json pk.json
# patch dummy keys with actual keys params # patch dummy keys with actual keys params
cargo run --release --bin copy_json proving_key.json pk.json transformed_pk.json cargo run --release --bin copy_json proving_key.json pk.json transformed_pk.json
cargo run --release --bin copy_json verification_key.json vk.json transformed_vk.json
# generate solidity verifier # generate solidity verifier
cargo run --release --bin generate_verifier circom4.params verifier.sol cargo run --release --bin generate_verifier circom4.params verifier.sol
@ -41,4 +40,4 @@ cargo run --release --bin generate_verifier circom4.params verifier.sol
# try to generate and verify proof # try to generate and verify proof
npx snarkjs calculatewitness npx snarkjs calculatewitness
cargo run --release --bin prove circuit.json witness.json circom4.params proof.json public.json cargo run --release --bin prove circuit.json witness.json circom4.params proof.json public.json
npx snarkjs verify --vk transformed_vk.json --proof proof.json npx snarkjs verify --vk vk.json --proof proof.json