// https://tornado.cash /* * d888888P dP a88888b. dP * 88 88 d8' `88 88 * 88 .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b. 88 .d8888b. .d8888b. 88d888b. * 88 88' `88 88' `88 88' `88 88' `88 88' `88 88' `88 88 88' `88 Y8ooooo. 88' `88 * 88 88. .88 88 88 88 88. .88 88. .88 88. .88 dP Y8. .88 88. .88 88 88 88 * dP `88888P' dP dP dP `88888P8 `88888P8 `88888P' 88 Y88888P' `88888P8 `88888P' dP dP * ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo */ pragma solidity ^0.5.8; import "./Mixer.sol"; contract ETHMixer is Mixer { constructor( IVerifier _verifier, uint256 _denomination, uint8 _merkleTreeHeight, address _operator ) Mixer(_verifier, _denomination, _merkleTreeHeight, _operator) public { } function _processDeposit() internal { require(msg.value == denomination, "Please send `mixDenomination` ETH along with transaction"); } function _processWithdraw(address payable _receiver, address payable _relayer, uint256 _fee, uint256 _refund) internal { // sanity checks require(msg.value == 0, "Message value is supposed to be zero for ETH mixer"); require(_refund == 0, "Refund value is supposed to be zero for ETH mixer"); _receiver.transfer(denomination - _fee); if (_fee > 0) { _relayer.transfer(_fee); } } }