github/darkfi
1
1
Fork 0
mirror of https://github.com/darkrenaissance/darkfi.git synced 2026-01-09 22:57:59 -05:00
Code Issues Packages Projects Releases Wiki Activity

added some commented to lead proof

Browse Source
This commit is contained in:
mohab metwally
2022-08-01 22:04:39 +02:00
parent 39c9f3871b
commit 95a048ab23
2 changed files with 28 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/blockchain/epoch.rs
View File

@@ -174,11 +174,12 @@ impl Epoch {
//random sampling of the same size of prf,
//pseudo random sampling that is the size of pederson commitment
// coin slot number
//TODO (fix) need to be multiplied by the ep
//TODO this has to be absolute path
let c_sl = pallas::Base::from(u64::try_from(i).unwrap());
//
//TODO (fix)
let c_tau = pallas::Base::from(u64::try_from(i).unwrap()); // let's assume it's sl for simplicity
//let's assume it's sl for simplicity
let c_tau = pallas::Base::from(u64::try_from(i).unwrap());
//
let c_root_sk: MerkleNode = root_sks[i];
@@ -187,7 +188,6 @@ impl Epoch {
c_root_sk.inner(),
];
let c_pk : pallas::Base = poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<2>, 3, 2>::init().hash(coin_pk_msg);
//let c_pk = pedersen_commitment_base(c_tau, mod_r_p(c_root_sk.inner()));
let c_seed = pallas::Base::from(seeds[i]);
let sn_msg = [
@@ -197,15 +197,6 @@ impl Epoch {
let c_sn : pallas::Base = poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<2>, 3, 2>::init().hash(coin_pk_msg);
//let lead_coin_msg = [
// c_pk.clone(),
//c_v,
// *c_seed_pt.x(), //TODO(fix) will be c_seed(base) only after calculating c_seed as hash
//*c_seed_pt.y(),
//];
//let lead_coin_msg_hash : pallas::Scalar = poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<1>, 3, 2>::init().hash(lead_coin_msg);
let coin_commit_msg = c_pk*c_v*c_seed;
let c_cm: pallas::Point = pedersen_commitment_scalar(mod_r_p(coin_commit_msg), c_cm1_blind);
let c_cm_coordinates = c_cm.to_affine().coordinates().unwrap();
@@ -225,25 +216,10 @@ impl Epoch {
let c_seed2_pt_x = c_seed2.clone();
let c_seed2_pt_y = c_seed2.clone();
//let lead_coin_msg = [
//c_pk_pt_y.clone(),
//c_pk_pt_x.clone(),
//c_v,
//c_seed,
//pallas::Base::one(),
//];
//let lead_coin_msg_hash : pallas::Base = poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<1>, 3, 2>::init().hash(lead_coin_msg);
let coin2_commit_msg = c_pk*c_seed2_pt_x*c_seed2_pt_y*c_v;
let c_cm2 = pedersen_commitment_base(coin2_commit_msg, c_cm2_blind);
let c_root_sk = root_sks[i];
let c_root_sk_bytes: [u8; 32] = c_root_sk.inner().to_repr();
let mut c_root_sk_base_bytes: [u8; 32] = [0; 32];
//TODO (fix) using only first 24, use the whole root
c_root_sk_base_bytes[..23].copy_from_slice(&c_root_sk_bytes[..23]);
let _c_root_sk_base = pallas::Base::from_repr(c_root_sk_base_bytes);
let c_path_sk = path_sks[i];
// election seeds

43
src/zk/circuit/lead_contract.rs
View File

@@ -438,7 +438,9 @@ impl Circuit<pallas::Base> for LeadContract {
)?;
// ================================================
// coin2 commiment H=COMMIT(pk||V||nonce2||r2)
// ================================================
let coin2_hash_cm = ar_chip.mul(
layouter.namespace(|| ""),
&coin_pk_commit,
@@ -484,6 +486,9 @@ impl Circuit<pallas::Base> for LeadContract {
LEAD_COIN_COMMIT2_Y_OFFSET,
)?;
// ===========================
// path is valid path to cm1
// ===========================
let path : Value<[pallas::Base;MERKLE_DEPTH_ORCHARD]> = self.path.map(|typed_path| gen_const_array(|i| typed_path[i].inner()));
@@ -514,10 +519,10 @@ impl Circuit<pallas::Base> for LeadContract {
LEAD_COIN_COMMIT_PATH_OFFSET,
)?;
//let _node = MerkleNode::from_bytes(&self.root_sk.unwrap().to_repr()).unwrap();
//let serialized = serde_json::to_string(&node).unwrap();
//println!("root_sk: {}", serialized);
//================================
// y as COMIT(root_sk*nonce, mau_y)
//================================
let y_commit_exp = ar_chip.mul(
layouter.namespace(|| ""),
&_root_sk.clone(),
@@ -550,7 +555,7 @@ impl Circuit<pallas::Base> for LeadContract {
let y_commit_base = y_commit.inner().x();
// ============================
// constraint rho
// constraint rho as COMIT(root_sk*nonce, mau_rho)
// ============================
let (com, _) = {
let rho_commit_v = ValueCommitV;
@@ -572,7 +577,7 @@ impl Circuit<pallas::Base> for LeadContract {
};
let _rho_commit = com.add(layouter.namespace(|| "nonce commit"), &blind)?;
// that the coin value never get past it.
//used for fine tuning the leader election frequency
let scalar = self.load_private(
layouter.namespace(|| "load scalar "),
config.advices[0],
@@ -585,21 +590,21 @@ impl Circuit<pallas::Base> for LeadContract {
config.advices[0],
Value::known(pallas::Base::one()), // note! this parameter to be tuned.
)?;
//let ord = ar_chip.mul(layouter.namespace(|| ""), &scalar, &c)?;
//let target = ar_chip.mul(layouter.namespace(|| "calculate target"), &ord, &coin_value.clone())?;
//eb_chip.decompose(layouter.namespace(|| "target range check"), target.clone())?;
//eb_chip.decompose(layouter.namespace(|| "y_commit range check"), y_commit_base.clone())?;
//let (helper, is_gt) = greater_than_chip.greater_than(
// layouter.namespace(|| "t>y"),
//target.into(),
// y_commit_base.into(),
// )?;
//eb_chip.decompose(layouter.namespace(|| "helper range check"), helper.0)?;
//layouter.constrain_instance(is_gt.0.cell(), config.primary, LEAD_THRESHOLD_OFFSET)?
/*
let ord = ar_chip.mul(layouter.namespace(|| ""), &scalar, &c)?;
let target = ar_chip.mul(layouter.namespace(|| "calculate target"), &ord, &coin_value.clone())?;
eb_chip.decompose(layouter.namespace(|| "target range check"), target.clone())?;
eb_chip.decompose(layouter.namespace(|| "y_commit range check"), y_commit_base.clone())?;
let (helper, is_gt) = greater_than_chip.greater_than(
layouter.namespace(|| "t>y"),
target.into(),
y_commit_base.into(),
)?;
eb_chip.decompose(layouter.namespace(|| "helper range check"), helper.0)?;
layouter.constrain_instance(is_gt.0.cell(), config.primary, LEAD_THRESHOLD_OFFSET)?
*/
Ok(())
}
}