题目信息 题目名称: Payday 作者: bobface 难度: 中级 类型: Merkle 树安全 题目描述 Your competitor has just set up a node operator fee claiming contract for their users. It would be a...

题目信息 挑战名称: Proof of Work 作者: 3doc 目标: 窃取至少一半的 DRK 代币供应量（≥ 10 ether） 题目背景 A friend told you about this weird DAO, folks raving all the time about vamp...

题目信息 题目: 13th Airdrop 作者: bobface 目标: 使 Airdrop 合约余额 <= 30 ETH 初始状态: Airdrop 有 60 ETH（6 个用户各 10 ETH） 漏洞分析 合约结构 contract Airdrop is IAirdrop { m...