mirror of
https://github.com/tornadocash/tornado-core.git
synced 2025-10-30 22:18:54 -04:00
typed withdraw inputs
This commit is contained in:
poma
parent
e9c2055bb4
commit
74913e67b2
5 changed files with 195 additions and 62 deletions
31
cli.js
31
cli.js
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@ -113,11 +113,19 @@ async function withdrawErc20(note, receiver, relayer) {
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console.log('Generating SNARK proof')
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console.time('Proof time')
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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console.timeEnd('Proof time')
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console.log('Submitting withdraw transaction')
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await erc20mixer.methods.withdraw(proof, publicSignals).send({ from: (await web3.eth.getAccounts())[0], gas: 1e6 })
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const args = [
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toHex(input.root),
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toHex(input.nullifierHash),
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toHex(input.receiver, 20),
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toHex(input.relayer, 20),
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toHex(input.fee),
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toHex(input.refund)
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]
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await erc20mixer.methods.withdraw(proof, ...args).send({ from: (await web3.eth.getAccounts())[0], gas: 1e6 })
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console.log('Done')
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}
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@ -138,6 +146,13 @@ async function getBalanceErc20(receiver, relayer) {
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console.log('Relayer token Balance is ', web3.utils.fromWei(tokenBalanceRelayer.toString()))
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}
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function toHex(number, length = 32) {
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let str = bigInt(number).toString(16)
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while (str.length < length * 2) str = '0' + str
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str = '0x' + str
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return str
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}
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async function withdraw(note, receiver) {
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// Decode hex string and restore the deposit object
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let buf = Buffer.from(note.slice(2), 'hex')
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@ -188,11 +203,19 @@ async function withdraw(note, receiver) {
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console.log('Generating SNARK proof')
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console.time('Proof time')
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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console.timeEnd('Proof time')
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console.log('Submitting withdraw transaction')
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await mixer.methods.withdraw(proof, publicSignals).send({ from: (await web3.eth.getAccounts())[0], gas: 1e6 })
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const args = [
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toHex(input.root),
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toHex(input.nullifierHash),
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toHex(input.receiver, 20),
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toHex(input.relayer, 20),
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toHex(input.fee),
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toHex(input.refund)
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]
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await mixer.methods.withdraw(proof, ...args).send({ from: (await web3.eth.getAccounts())[0], gas: 1e6 })
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console.log('Done')
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}
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@ -14,7 +14,7 @@ pragma solidity ^0.5.8;
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import "./MerkleTreeWithHistory.sol";
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contract IVerifier {
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function verifyProof(uint256[8] memory _proof, uint256[6] memory _input) public returns(bool);
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function verifyProof(bytes memory _proof, uint256[6] memory _input) public returns(bool);
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}
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contract Mixer is MerkleTreeWithHistory {
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@ -64,6 +64,7 @@ contract Mixer is MerkleTreeWithHistory {
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function deposit(uint256 _commitment) public payable {
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require(!isDepositsDisabled, "deposits are disabled");
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require(!commitments[_commitment], "The commitment has been submitted");
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uint32 insertedIndex = _insert(_commitment);
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commitments[_commitment] = true;
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_processDeposit();
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@ -82,21 +83,15 @@ contract Mixer is MerkleTreeWithHistory {
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- the receiver of funds
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- optional fee that goes to the transaction sender (usually a relay)
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*/
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function withdraw(uint256[8] memory _proof, uint256[6] memory _input) public payable {
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uint256 root = _input[0];
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uint256 nullifierHash = _input[1];
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address payable receiver = address(_input[2]);
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address payable relayer = address(_input[3]);
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uint256 fee = _input[4];
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uint256 refund = _input[5];
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require(fee <= denomination, "Fee exceeds transfer value");
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require(!nullifierHashes[nullifierHash], "The note has been already spent");
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function withdraw(bytes memory _proof, uint256 _root, uint256 _nullifierHash, address payable _receiver, address payable _relayer, uint256 _fee, uint256 _refund) public payable {
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require(_fee <= denomination, "Fee exceeds transfer value");
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require(!nullifierHashes[_nullifierHash], "The note has been already spent");
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require(isKnownRoot(_root), "Cannot find your merkle root"); // Make sure to use a recent one
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require(verifier.verifyProof(_proof, [_root, _nullifierHash, uint256(_receiver), uint256(_relayer), _fee, _refund]), "Invalid withdraw proof");
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require(isKnownRoot(root), "Cannot find your merkle root"); // Make sure to use a recent one
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require(verifier.verifyProof(_proof, _input), "Invalid withdraw proof");
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nullifierHashes[nullifierHash] = true;
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_processWithdraw(receiver, relayer, fee, refund);
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emit Withdrawal(receiver, nullifierHash, relayer, fee);
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nullifierHashes[_nullifierHash] = true;
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_processWithdraw(_receiver, _relayer, _fee, _refund);
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emit Withdrawal(_receiver, _nullifierHash, _relayer, _fee);
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}
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/** @dev this function is defined in a child contract */
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@ -36,14 +36,14 @@
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"dotenv": "^8.0.0",
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"eslint": "^6.2.2",
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"ganache-cli": "^6.4.5",
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"snarkjs": "git+https://github.com/peppersec/snarkjs.git#0e2f8ab28092ee6d922dc4d3ac7afc8ef5a25154",
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"snarkjs": "git+https://github.com/peppersec/snarkjs.git#869181cfaf7526fe8972073d31655493a04326d5",
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"truffle": "^5.0.27",
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"truffle-artifactor": "^4.0.23",
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"truffle-contract": "^4.0.24",
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"truffle-hdwallet-provider": "^1.0.14",
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"web3": "^1.0.0-beta.55",
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"web3-utils": "^1.0.0-beta.55",
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"websnark": "git+https://github.com/peppersec/websnark.git#966eafc47df639195c98374d3c366c32acd6f231"
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"websnark": "git+https://github.com/peppersec/websnark.git#c254b5962287b788081be1047fa0041c2885b39f"
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},
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"devDependencies": {
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"truffle-flattener": "^1.4.0"
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@ -43,6 +43,13 @@ function getRandomReceiver() {
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return receiver
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}
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function toFixedHex(number, length = 32) {
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let str = bigInt(number).toString(16)
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while (str.length < length * 2) str = '0' + str
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str = '0x' + str
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return str
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}
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contract('ERC20Mixer', accounts => {
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let mixer
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let token
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@ -147,7 +154,7 @@ contract('ERC20Mixer', accounts => {
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const balanceMixerBefore = await token.balanceOf(mixer.address)
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const balanceRelayerBefore = await token.balanceOf(relayer)
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@ -161,7 +168,15 @@ contract('ERC20Mixer', accounts => {
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// Uncomment to measure gas usage
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// gas = await mixer.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
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// console.log('withdraw gas:', gas)
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const { logs } = await mixer.withdraw(proof, publicSignals, { value: refund, from: relayer, gasPrice: '0' })
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const { logs } = await mixer.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
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const balanceMixerAfter = await token.balanceOf(mixer.address)
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const balanceRelayerAfter = await token.balanceOf(relayer)
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@ -215,13 +230,21 @@ contract('ERC20Mixer', accounts => {
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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let { reason } = await mixer.withdraw(proof, publicSignals, { value: 1, from: relayer, gasPrice: '0' }).should.be.rejected
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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let { reason } = await mixer.withdraw(proof, ...args, { value: 1, from: relayer, gasPrice: '0' }).should.be.rejected
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reason.should.be.equal('Incorrect refund amount received by the contract')
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;({ reason } = await mixer.withdraw(proof, publicSignals, { value: toBN(refund).mul(toBN(2)), from: relayer, gasPrice: '0' }).should.be.rejected)
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;({ reason } = await mixer.withdraw(proof, ...args, { value: toBN(refund).mul(toBN(2)), from: relayer, gasPrice: '0' }).should.be.rejected)
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reason.should.be.equal('Incorrect refund amount received by the contract')
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})
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@ -274,7 +297,7 @@ contract('ERC20Mixer', accounts => {
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const balanceMixerBefore = await usdtToken.balanceOf(mixer.address)
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const balanceRelayerBefore = await usdtToken.balanceOf(relayer)
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@ -287,7 +310,15 @@ contract('ERC20Mixer', accounts => {
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// Uncomment to measure gas usage
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// gas = await mixer.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
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// console.log('withdraw gas:', gas)
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const { logs } = await mixer.withdraw(proof, publicSignals, { value: refund, from: relayer, gasPrice: '0' })
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const { logs } = await mixer.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
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const balanceMixerAfter = await usdtToken.balanceOf(mixer.address)
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const balanceRelayerAfter = await usdtToken.balanceOf(relayer)
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@ -355,7 +386,7 @@ contract('ERC20Mixer', accounts => {
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const balanceMixerBefore = await token.balanceOf(mixer.address)
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const balanceRelayerBefore = await token.balanceOf(relayer)
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@ -368,7 +399,15 @@ contract('ERC20Mixer', accounts => {
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// Uncomment to measure gas usage
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// gas = await mixer.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
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// console.log('withdraw gas:', gas)
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const { logs } = await mixer.withdraw(proof, publicSignals, { value: refund, from: relayer, gasPrice: '0' })
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const { logs } = await mixer.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
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console.log('withdraw done')
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const balanceMixerAfter = await token.balanceOf(mixer.address)
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@ -57,6 +57,13 @@ function snarkVerify(proof) {
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return snarkjs['groth'].isValid(verification_key, proof, proof.publicSignals)
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}
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function toFixedHex(number, length = 32) {
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let str = bigInt(number).toString(16)
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while (str.length < length * 2) str = '0' + str
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str = '0x' + str
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return str
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}
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contract('ETHMixer', accounts => {
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let mixer
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const sender = accounts[0]
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@ -215,7 +222,7 @@ contract('ETHMixer', accounts => {
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const balanceMixerBefore = await web3.eth.getBalance(mixer.address)
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const balanceRelayerBefore = await web3.eth.getBalance(relayer)
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@ -227,7 +234,15 @@ contract('ETHMixer', accounts => {
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// Uncomment to measure gas usage
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// gas = await mixer.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
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// console.log('withdraw gas:', gas)
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const { logs } = await mixer.withdraw(proof, publicSignals, { from: relayer, gasPrice: '0' })
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const { logs } = await mixer.withdraw(proof, ...args, { from: relayer, gasPrice: '0' })
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const balanceMixerAfter = await web3.eth.getBalance(mixer.address)
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const balanceRelayerAfter = await web3.eth.getBalance(relayer)
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@ -268,9 +283,17 @@ contract('ETHMixer', accounts => {
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pathIndices: path_index,
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})
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.fulfilled
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const error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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await mixer.withdraw(proof, ...args, { from: relayer }).should.be.fulfilled
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const error = await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('The note has been already spent')
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})
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@ -294,9 +317,16 @@ contract('ETHMixer', accounts => {
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pathIndices: path_index,
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})
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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publicSignals[1] ='0x' + toBN(publicSignals[1]).add(toBN('21888242871839275222246405745257275088548364400416034343698204186575808495617')).toString('hex')
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const error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const args = [
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toFixedHex(input.root),
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toFixedHex(toBN(input.nullifierHash).add(toBN('21888242871839275222246405745257275088548364400416034343698204186575808495617'))),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const error = await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('verifier-gte-snark-scalar-field')
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})
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@ -321,8 +351,16 @@ contract('ETHMixer', accounts => {
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})
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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const error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const args = [
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toFixedHex(input.root),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const error = await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('Fee exceeds transfer value')
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})
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@ -346,12 +384,18 @@ contract('ETHMixer', accounts => {
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pathIndices: path_index,
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})
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const dummyRoot = randomHex(32)
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
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const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
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publicSignals[0] = dummyRoot
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const { proof } = websnarkUtils.toSolidityInput(proofData)
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const error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
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const args = [
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toFixedHex(randomHex(32)),
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toFixedHex(input.nullifierHash),
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toFixedHex(input.receiver, 20),
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toFixedHex(input.relayer, 20),
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toFixedHex(input.fee),
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toFixedHex(input.refund)
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]
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const error = await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('Cannot find your merkle root')
|
||||
})
|
||||
|
||||
|
|
@ -375,36 +419,60 @@ contract('ETHMixer', accounts => {
|
|||
pathIndices: path_index,
|
||||
})
|
||||
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
||||
let { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
|
||||
const originalPublicSignals = publicSignals.slice()
|
||||
let { proof } = websnarkUtils.toSolidityInput(proofData)
|
||||
const args = [
|
||||
toFixedHex(input.root),
|
||||
toFixedHex(input.nullifierHash),
|
||||
toFixedHex(input.receiver, 20),
|
||||
toFixedHex(input.relayer, 20),
|
||||
toFixedHex(input.fee),
|
||||
toFixedHex(input.refund)
|
||||
]
|
||||
let incorrectArgs
|
||||
const originalProof = proof.slice()
|
||||
|
||||
// receiver
|
||||
publicSignals[2] = '0x0000000000000000000000007a1f9131357404ef86d7c38dbffed2da70321337'
|
||||
|
||||
let error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
|
||||
incorrectArgs = [
|
||||
toFixedHex(input.root),
|
||||
toFixedHex(input.nullifierHash),
|
||||
toFixedHex('0x0000000000000000000000007a1f9131357404ef86d7c38dbffed2da70321337', 20),
|
||||
toFixedHex(input.relayer, 20),
|
||||
toFixedHex(input.fee),
|
||||
toFixedHex(input.refund)
|
||||
]
|
||||
let error = await mixer.withdraw(proof, ...incorrectArgs, { from: relayer }).should.be.rejected
|
||||
error.reason.should.be.equal('Invalid withdraw proof')
|
||||
|
||||
// fee
|
||||
publicSignals = originalPublicSignals.slice()
|
||||
publicSignals[3] = '0x000000000000000000000000000000000000000000000000015345785d8a0000'
|
||||
|
||||
error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
|
||||
incorrectArgs = [
|
||||
toFixedHex(input.root),
|
||||
toFixedHex(input.nullifierHash),
|
||||
toFixedHex(input.receiver, 20),
|
||||
toFixedHex(input.relayer, 20),
|
||||
toFixedHex('0x000000000000000000000000000000000000000000000000015345785d8a0000'),
|
||||
toFixedHex(input.refund)
|
||||
]
|
||||
error = await mixer.withdraw(proof, ...incorrectArgs, { from: relayer }).should.be.rejected
|
||||
error.reason.should.be.equal('Invalid withdraw proof')
|
||||
|
||||
// nullifier
|
||||
publicSignals = originalPublicSignals.slice()
|
||||
publicSignals[1] = '0x00abdfc78211f8807b9c6504a6e537e71b8788b2f529a95f1399ce124a8642ad'
|
||||
|
||||
error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
|
||||
incorrectArgs = [
|
||||
toFixedHex(input.root),
|
||||
toFixedHex('0x00abdfc78211f8807b9c6504a6e537e71b8788b2f529a95f1399ce124a8642ad'),
|
||||
toFixedHex(input.receiver, 20),
|
||||
toFixedHex(input.relayer, 20),
|
||||
toFixedHex(input.fee),
|
||||
toFixedHex(input.refund)
|
||||
]
|
||||
error = await mixer.withdraw(proof, ...incorrectArgs, { from: relayer }).should.be.rejected
|
||||
error.reason.should.be.equal('Invalid withdraw proof')
|
||||
|
||||
// proof itself
|
||||
proof[0] = '0x261d81d8203437f29b38a88c4263476d858e6d9645cf21740461684412b31337'
|
||||
await mixer.withdraw(proof, originalPublicSignals, { from: relayer }).should.be.rejected
|
||||
proof = '0xbeef' + proof.substr(6)
|
||||
await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
|
||||
|
||||
// should work with original values
|
||||
await mixer.withdraw(originalProof, originalPublicSignals, { from: relayer }).should.be.fulfilled
|
||||
await mixer.withdraw(originalProof, ...args, { from: relayer }).should.be.fulfilled
|
||||
})
|
||||
|
||||
it('should reject with non zero refund', async () => {
|
||||
|
|
@ -428,9 +496,17 @@ contract('ETHMixer', accounts => {
|
|||
})
|
||||
|
||||
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
||||
const { proof, publicSignals } = websnarkUtils.toSolidityInput(proofData)
|
||||
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
||||
|
||||
const error = await mixer.withdraw(proof, publicSignals, { from: relayer }).should.be.rejected
|
||||
const args = [
|
||||
toFixedHex(input.root),
|
||||
toFixedHex(input.nullifierHash),
|
||||
toFixedHex(input.receiver, 20),
|
||||
toFixedHex(input.relayer, 20),
|
||||
toFixedHex(input.fee),
|
||||
toFixedHex(input.refund)
|
||||
]
|
||||
const error = await mixer.withdraw(proof, ...args, { from: relayer }).should.be.rejected
|
||||
error.reason.should.be.equal('Refund value is supposed to be zero for ETH mixer')
|
||||
})
|
||||
})
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue