witness limit initial stack size

Bit-Wasp · Nov 9, 2019 · 5ee69f0 · 5ee69f0
1 parent 2701901
commit 5ee69f0
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Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/composer.json b/composer.json
@@ -17,7 +17,8 @@
     },
     "files": [
       "src/Script/functions.php",
-      "src/Script/sighash_functions.php"
+      "src/Script/sighash_functions.php",
+      "src/Script/script_constants.php"
     ]
   },
   "autoload-dev": {

diff --git a/src/Script/Interpreter/Interpreter.php b/src/Script/Interpreter/Interpreter.php
@@ -223,6 +223,9 @@ private function executeWitnessProgram(ScriptWitnessInterface $witness, ScriptIn
 
         $mainStack = new Stack();
         foreach ($witness as $value) {
+            if ($value->getSize() > self::MAX_SCRIPT_ELEMENT_SIZE) {
+                return false;
+            }
             $mainStack->push($value);
         }
 

diff --git a/src/Script/script_constants.php b/src/Script/script_constants.php
@@ -0,0 +1,4 @@
+<?php
+
+
+const VALIDATION_WEIGHT_OFFSET = 50;