Place the change output in a random position

12 years ago · d6eb9fb153
1 changed files with 3 additions and 1 deletions
--- a/lib/wallet.py
+++ b/lib/wallet.py
@ -610,7 +610,9 @@ class Wallet:
            # normally, the update thread should ensure that the last change address is unused
            if not change_addr:
                change_addr = self.change_addresses[-1]
-            outputs.append( ( change_addr,  change_amount) )
+            # Insert the change output at a random position in the outputs
+            posn = random.randint(0, len(outputs))
+            outputs[posn:posn] = [( change_addr,  change_amount)]
        return outputs

    def sign_inputs( self, inputs, outputs, password ):