wip

echotrade-app · Sep 24, 2023 · 10a40aa · 10a40aa
1 parent 6558813
commit 10a40aa
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/contracts/ICO.sol b/contracts/ICO.sol
@@ -20,7 +20,6 @@ contract ICO is SuperAdmin {
         uint256 comStartVol;
     }
 
-
     // Token is the token sell in ICO
     address public token;
 
@@ -125,7 +124,10 @@ contract ICO is SuperAdmin {
         require(_success,"transfering Token failed");
         return true;
     }
-
+
+    function buy_signaureData(address _from, uint256 _amount, uint256 _exp) public view returns (bytes32) {
+        return keccak256(abi.encodePacked(address(this),_from, _amount, _exp));
+    }
     // ─── Utils ───────────────────────────────────────────────────────────
     function mybalance(address _contract) internal returns (uint256) {
         (bool _success,bytes memory _data ) = _contract.call(abi.encodeWithSelector(_balanceOfSelector,address(this)));