Ownable Access Control KECCAK-256 VERIFIED
WEB3 逆向安全工程 // OWNABLE 标准
0x8da5cb5b

Solidity Interface & Canonical Declaration

function owner() external view returns (address)

查询当前智能合约的最高拥有者所有权地址。

理论基础执行 Gas: 2,100 ~ 3,000 gas (view)
返回值类型: address

Calldata 调用数据 ABI 编码布局账本

Calldata Offset Type Parameter Name Semantic Role
0x00 ~ 0x03 (4B) bytes4 Method ID (msg.sig) owner() 的 4 字节函数选择器

Keccak-256 密码学哈希推导链

标准 ASCII 签名字符串: owner()
完整 256 位 Keccak 哈希: 0x8da5cb5b36e7f68c1d2e56001220cdbdd3ba2616072f718acfda4a06441a807d
截取前 4 字节 (Big-Endian): 0x8da5cb5b

EVM 运行时调度器汇编代码特征 (Dispatcher Opcodes)

// 1. Load the first 32 bytes of transaction calldata [0x0000] PUSH1 0x00 [0x0002] CALLDATALOAD // 2. Right-shift by 224 bits (0xe0) to isolate the 4-byte selector [0x0003] PUSH1 0xe0 [0x0005] SHR // 3. Match against target selector 0x8da5cb5b and branch [0x0006] DUP1 [0x0007] PUSH4 0x8da5cb5b [0x000c] EQ [0x000d] PUSH2 0x0050 [0x0010] JUMPI // Jump to implementation if matched