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Add check to avoid proof reusage

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arnaucube
2020-05-09 23:10:38 +02:00
parent d6568e9f0a
commit e466578ddc
4 changed files with 81 additions and 10 deletions
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5
contracts/Miksi.sol
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@@ -14,6 +14,7 @@ contract Miksi {
struct Deposit {
uint256 coinCode;
uint256 amount;
bool used;
}
function deposit(
@@ -21,7 +22,7 @@ contract Miksi {
// uint256 amount,
uint256 commitment
) public payable {
deposits[commitment] = Deposit(coinCode, msg.value);
deposits[commitment] = Deposit(coinCode, msg.value, false);
}
function getDeposit(
@@ -49,6 +50,8 @@ contract Miksi {
];
require(verifier.verifyProof(a, b, c, input), "zkProof withdraw could not be verified");
// zk verification passed, proceed with the withdraw
require(!deposits[commitment].used, "deposit already withdrawed");
deposits[commitment].used = true;
_address.send(deposits[commitment].amount);
// _address.call.value(deposits[commitment].amount).gas(20317)();