From 237e11a9b02129719774db5d3b48328f1add8eaa Mon Sep 17 00:00:00 2001
From: Vasco Compain <vasco@ik.me>
Date: Mon, 27 Jan 2025 23:37:46 +0100
Subject: [PATCH] Fix private VAPID key padding

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

diff --git a/src/VAPID.php b/src/VAPID.php
index 5a40cd9..9e9e424 100644
--- a/src/VAPID.php
+++ b/src/VAPID.php
@@ -54,7 +54,7 @@ public static function validate(array $vapid): array
                 throw new \ErrorException('Failed to convert VAPID public key from hexadecimal to binary');
             }
             $vapid['publicKey'] = base64_encode($binaryPublicKey);
-            $vapid['privateKey'] = base64_encode(str_pad(Base64Url::decode($jwk->get('d')), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));
+            $vapid['privateKey'] = base64_encode(str_pad(Base64Url::decode($jwk->get('d')), self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));
         }
 
         if (!isset($vapid['publicKey'])) {