From 45b98d8cb39230019612ddcca3abbdc574152834 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Fri, 2 Aug 2024 09:04:47 -0500
Subject: [PATCH] fix IEEE length calculations

secp521r1 has length of 521 so we want 66 to cover that last extra bit
- not 65
---
 phpseclib/Crypt/EC/Formats/Signature/IEEE.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpseclib/Crypt/EC/Formats/Signature/IEEE.php b/phpseclib/Crypt/EC/Formats/Signature/IEEE.php
index 26ff7404..6bfd9311 100644
--- a/phpseclib/Crypt/EC/Formats/Signature/IEEE.php
+++ b/phpseclib/Crypt/EC/Formats/Signature/IEEE.php
@@ -62,7 +62,7 @@ abstract class IEEE
     {
         $r = $r->toBytes();
         $s = $s->toBytes();
-        $length >>= 3;
+        $length = (int) ceil($length / 8);
         return str_pad($r, $length, "\0", STR_PAD_LEFT) . str_pad($s, $length, "\0", STR_PAD_LEFT);
     }
 }