AccessControl Role-Based Access KECCAK-256 VERIFIED
WEB3 逆向安全工程 // ACCESSCONTROL 标准
0x2f2ff15d

Solidity Interface & Canonical Declaration

function grantRole(bytes32 role, address account) external

为指定账户授予角色权限,仅限拥有该角色管理权限的管理员调用。

理论基础执行 Gas: 28,000 ~ 55,000 gas
返回值类型: void

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) grantRole(bytes32,address) 的 4 字节函数选择器
0x04 ~ 0x23 (32B) bytes32 role 待授予的角色标识符
0x24 ~ 0x43 (32B) address account 接收角色的账户

Keccak-256 密码学哈希推导链

标准 ASCII 签名字符串: grantRole(bytes32,address)
完整 256 位 Keccak 哈希: 0x2f2ff15deca029b64bbc0874ae59c8f39be024a95aa718b4c13ca407db350be8
截取前 4 字节 (Big-Endian): 0x2f2ff15d

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 0x2f2ff15d and branch [0x0006] DUP1 [0x0007] PUSH4 0x2f2ff15d [0x000c] EQ [0x000d] PUSH2 0x0050 [0x0010] JUMPI // Jump to implementation if matched