defend replay attack

11090815 · Oct 18, 2023 · c5c6453 · c5c6453
1 parent 0aa22f2
commit c5c6453
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/chaincode/cc_impl.go b/chaincode/cc_impl.go
@@ -170,8 +170,10 @@ func (s *DSCABS) Access(ctx contractapi.TransactionContextInterface, userID stri
 		return false, err
 	}
 
-	if al.Log[sig] == 0 {
-		al.Log[sig] = 1
+	key := strings.Join([]string{contractName, functionName, sig, signedMessage}, ".")
+
+	if al.Log[key] == 0 {
+		al.Log[key] = 1
 	} else {
 		return false, errors.New("prohibit replay of signature token")
 	}