21 lines
568 B
Solidity
21 lines
568 B
Solidity
|
/*
|
||
|
|
* @source: https://github.com/sigp/solidity-security-blog
|
||
|
|
* @author: -
|
||
|
|
* @vulnerable_at_lines: 17
|
||
|
|
*/
|
||
|
|
|
||
|
|
pragma solidity ^0.4.22;
|
||
|
|
|
||
|
|
contract FindThisHash {
|
||
|
|
bytes32 constant public hash = 0xb5b5b97fafd9855eec9b41f74dfb6c38f5951141f9a3ecd7f44d5479b630ee0a;
|
||
|
|
|
||
|
|
constructor() public payable {} // load with ether
|
||
|
|
|
||
|
|
function solve(string solution) public {
|
||
|
|
// If you can find the pre image of the hash, receive 1000 ether
|
||
|
|
// <yes> <report> FRONT_RUNNING
|
||
|
|
require(hash == sha3(solution));
|
||
|
|
msg.sender.transfer(1000 ether);
|
||
|
|
}
|
||
|
|
}
|