From 5d80dcf512e12c6507d42d8a79b0bd872ec14d58 Mon Sep 17 00:00:00 2001
From: Daniele Lacamera <dan@danielinux.net>
Date: Thu, 19 Mar 2020 17:05:03 +0100
Subject: [PATCH] Added 6 bytes to padding in manifest

(fixes SHA-3 misaligned access)
Spotted via test-81
---
 tools/keytools/sign.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/keytools/sign.py b/tools/keytools/sign.py
index 40689b5f2..82c4fecf6 100755
--- a/tools/keytools/sign.py
+++ b/tools/keytools/sign.py
@@ -232,6 +232,11 @@
 
 header += struct.pack('<H', img_type)
 
+# Six pad bytes, Sha-3 requires 8-byte alignment.
+header += struct.pack('BB', 0xFF, 0xFF)
+header += struct.pack('BB', 0xFF, 0xFF)
+header += struct.pack('BB', 0xFF, 0xFF)
+
 print("Calculating %s digest..." % hash_algo)
 
 if hash_algo == 'sha256':