-
Notifications
You must be signed in to change notification settings - Fork 59
/
ecrecover.sol
48 lines (39 loc) · 1.4 KB
/
ecrecover.sol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
// SPDX-License-Identifier: SEE LICENSE IN LICENSE
pragma solidity ^0.8.0;
contract EcrecoverTest {
mapping(address => uint) balances;
function ecrecover_positive() external {
address signer = ecrecover("", 0, 0, 0);
}
function ecrecover_positive2() external {
address signer = ecrecover("", 0, 0, 0);
require(balances[signer] > 0);
assert(balances[signer] > 0);
}
function ecrecover_negative() external {
address signer = ecrecover("", 0, 0, 0);
require(signer != address(0x0), "oops");
}
function ecrecover_negative2() external {
address signer = ecrecover("", 0, 0, 0);
assert(signer != address(0));
}
function ecrecover_negative3() external {
address signer = ecrecover("", 0, 0, 0);
if (signer == address(0)) {
revert("smth");
}
}
function ecrecover_negative4() external returns (bool) {
address signer = ecrecover("", 0, 0, 0);
return signer == address(0);
}
// @todo Result is checked inside `ecrecover_negative5_part2` but the value from internal call is unused
function ecrecover_negative5_part1() external {
bool unusedResult = ecrecover_negative5_part2();
}
function ecrecover_negative5_part2() internal returns (bool) {
address signer = ecrecover("", 0, 0, 0);
return signer == address(0);
}
}