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Deposit zkProof root transition check working

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arnaucube
2020-05-11 14:29:50 +02:00
parent 835ddb8810
commit 0117a18dfa
8 changed files with 399 additions and 78 deletions
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34
contracts/Miksi.sol
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@@ -1,23 +1,39 @@
pragma solidity ^0.6.0;
import './verifier.sol';
import './deposit-verifier.sol';
import './withdraw-verifier.sol';
contract Miksi {
Verifier verifier;
DepositVerifier dVerifier;
WithdrawVerifier wVerifier;
constructor( address _verifierContractAddr) public {
verifier = Verifier(_verifierContractAddr);
}
uint256 amount = uint256(1000000000000000000);
uint256 root;
uint256 root ;
uint256[] commitments;
mapping(uint256 => bool) nullifiers;
constructor( address _depositVerifierContractAddr, address _withdrawVerifierContractAddr) public {
dVerifier = DepositVerifier(_depositVerifierContractAddr);
wVerifier = WithdrawVerifier(_withdrawVerifierContractAddr);
root = uint256(11499909227292257605992378629333104385616480982267969744564817844870636870870);
}
function deposit(
uint256 _commitment,
uint256 _root
uint256 _root,
uint[2] memory a,
uint[2][2] memory b,
uint[2] memory c
) public payable {
// TODO check root state transition update with zkp
// check root state transition update with zkp
uint256[5] memory input = [
0,
msg.value,
root, // rootOld
_root, // rootNew
_commitment
];
require(dVerifier.verifyProof(a, b, c, input), "zkProof deposit could not be verified");
require(msg.value==amount, "value should be 1 ETH"); // this can be flexible with a wrapper with preset fixed amounts
commitments.push(_commitment);
@@ -43,7 +59,7 @@ contract Miksi {
root,
uint256(_address)
];
require(verifier.verifyProof(a, b, c, input), "zkProof withdraw could not be verified");
require(wVerifier.verifyProof(a, b, c, input), "zkProof withdraw could not be verified");
// zk verification passed
require(useNullifier(nullifier), "nullifier already used");
// nullifier check passed