From 74b372f8da1fe908d2a57addfae7bd48a84ef311 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Peter=20M=C3=BCller?= <peter.mueller@ipfire.org>
Date: Fri, 8 Apr 2022 15:11:15 +0000
Subject: [PATCH] backupiso: Change checksum algorithm to BLAKE2
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Reported-by: Arne Fitzenreiter <arne.fitzenreiter@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
---
 src/scripts/backupiso | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/scripts/backupiso b/src/scripts/backupiso
index fe53767417..ef017e3be5 100644
--- a/src/scripts/backupiso
+++ b/src/scripts/backupiso
@@ -80,30 +80,30 @@ then
 	wget --quiet -c ${URL}${ISO}
 fi
 
-echo "Fetching ${URL}${ISO}.md5"
-wget --quiet -O ${ISO}.md5 ${URL}${ISO}.md5
+echo "Fetching ${URL}${ISO}.b2"
+wget --quiet -O ${ISO}.b2 ${URL}${ISO}.b2
 
-echo "Checking md5 of ${ISO}"
-md5sum --status -c ${ISO}.md5
+echo "Checking BLAKE2 checksum of ${ISO}"
+b2sum --status -c ${ISO}.b2
 if [ $? -eq 0 ] || [ $? -eq 24 ]
 then
-	echo "md5 is OK"
+	echo "BLAKE2 checksum is OK"
 else
-	echo "md5 mismatch"
+	echo "BLAKE2 checksum mismatch"
 	echo "Fetching again ${URL}${ISO}"
 	wget --quiet -O ${ISO} ${URL}${ISO}
-	echo "Checking again md5 of ${ISO}"
-	md5sum --status -c ${ISO}.md5
+	echo "Checking BLAKE2 checksum of ${ISO} again"
+	b2sum --status -c ${ISO}.b2
 	if [ $? -eq 0 ] || [ $? -eq 24 ]
 	then
-		echo "md5 is OK"
+		echo "BLAKE2 checksum is OK"
 	else
-		echo "md5 mismatch"
-		echo "aborting backup because md5 mismatch"
+		echo "BLAKE2 checksum mismatch"
+		echo "aborting backup because BLAKE2 checksum mismatch"
 		exit 1
 	fi
 fi
-rm ${ISO}.md5
+rm ${ISO}.b2
 
 echo "Remastering iso"
 mkdir -p backupiso.tmp.${TS}
-- 
2.39.2