Aave V3 Lending Protocol KECCAK-256 VERIFIED
WEB3 逆向安全工程 // AAVE V3 标准
0x573ade81

Solidity Interface & Canonical Declaration

function repay(address asset, uint256 amount, uint256 interestRateMode, address onBehalfOf) external returns (uint256)

偿还之前在借贷储备池中借取的借款,销毁对应的债务代币并恢复健康因子。

理论基础执行 Gas: 95,000 ~ 170,000 gas
返回值类型: uint256

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) repay(address,uint256,uint256,address) 的 4 字节函数选择器
0x04 ~ 0x23 (32B) address asset 偿还的底层资产
0x24 ~ 0x43 (32B) uint256 amount 还款数量(可填最大值全额结清)
0x44 ~ 0x63 (32B) uint256 interestRateMode 偿还的债务利率类型
0x64 ~ 0x83 (32B) address onBehalfOf 被偿还债务的借款人账户

Keccak-256 密码学哈希推导链

标准 ASCII 签名字符串: repay(address,uint256,uint256,address)
完整 256 位 Keccak 哈希: 0x573ade81da917875600753138ed8197ed3f106cda3a0b9d55b18d160638e02a9
截取前 4 字节 (Big-Endian): 0x573ade81

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 0x573ade81 and branch [0x0006] DUP1 [0x0007] PUSH4 0x573ade81 [0x000c] EQ [0x000d] PUSH2 0x0050 [0x0010] JUMPI // Jump to implementation if matched