From c1b1d82d109846ba58a4664dc5480c69ad2fc097 Mon Sep 17 00:00:00 2001
From: Paragon Initiative Enterprises <security@paragonie.com>
Date: Mon, 13 Jun 2022 01:29:16 -0400
Subject: [PATCH] Off-by-one error

---
 src/Base32.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Base32.php b/src/Base32.php
index 3ff4156..5054d73 100644
--- a/src/Base32.php
+++ b/src/Base32.php
@@ -197,7 +197,7 @@ public static function decodeNoPadding(string $encodedString, bool $upper = fals
         }
         if (($srcLen & 7) === 0) {
             for ($j = 0; $j < 7 && $j < $srcLen; ++$j) {
-                if ($encodedString[$srcLen - $j] === '=') {
+                if ($encodedString[$srcLen - $j - 1] === '=') {
                     throw new InvalidArgumentException(
                         "decodeNoPadding() doesn't tolerate padding"
                     );