On 32-bit architectures, just use what's given.

paragonie · Jan 30, 2017 · bcc1df6 · bcc1df6
1 parent aadeeea
commit bcc1df6
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/Core/Util.php b/src/Core/Util.php
@@ -521,6 +521,9 @@ public static function xorStrings($a, $b)
      */
     public static function mul($a, $b)
     {
+        if (PHP_INT_SIZE === 4) {
+            return (int) ($a * $b);
+        }
         return (int) (
             ($a | 0x80000000)
             * ($b | 0x80000000)

diff --git a/tests/unit/UtilTest.php b/tests/unit/UtilTest.php
@@ -145,7 +145,9 @@ public function testMul()
         $arguments = array(
             array(1, 1),
             array(65534, 65534),
-            array(65535, 65534)
+            array(65535, 65534),
+            array(0x7ffffffe, 1),
+            array(0x1fffffff, 0x1fffffff)
         );
         foreach ($arguments as $arg) {
             $this->assertSame(