From 18f35ab726ec8c8d7659f6faa89803d93083dd73 Mon Sep 17 00:00:00 2001
From: Ludwig <vasseur.ludwig@gmail.com>
Date: Fri, 2 Oct 2020 14:52:40 +0200
Subject: Initial commit

---
 Scripts/decrypt_SWL.sh | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Scripts/decrypt_SWL.sh

(limited to 'Scripts/decrypt_SWL.sh')

diff --git a/Scripts/decrypt_SWL.sh b/Scripts/decrypt_SWL.sh
new file mode 100644
index 0000000..3a7386c
--- /dev/null
+++ b/Scripts/decrypt_SWL.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+DIRECTORY=$1
+FIRMWARE_KEY=$2
+
+if [[ -d $DIRECTORY ]]; then
+	find $DIRECTORY -type f -print0 | while read -d $'\0' FILE; do
+		DATA=$(head -2 $FILE | grep "smime." 2>&1)
+		if [[ $DATA =~ '"smime.' ]]; then
+			cp $FILE $FILE.bak
+			OPENSSL_RESULT=$(openssl smime -decrypt -in $FILE.bak -inkey $FIRMWARE_KEY  2>&1 > $FILE)
+			if [[ -f $FILE && $OPENSSL_RESULT == '' ]]; then
+				echo "${FILE} has been decrypted"
+				rm -rf $FILE.bak
+			else
+				mv $FILE.bak $FILE
+				echo "${FILE} has not been decrypted, the key is probably invalid !"
+				echo "Stopping"
+				exit 1
+			fi
+		else
+			echo "${FILE} seems already decrypted !"
+		fi
+	done
+	find $DIRECTORY -type f -print0 | while read -d $'\0' FILE; do
+		if [[ -f $FILE"01" ]]; then
+			for i in {1..9}
+			do
+				if [[ -f $FILE"0"$i ]]; then
+					cat $FILE"0"$i >> $FILE
+					rm -rf $FILE"0"$i
+				fi
+			done
+			echo "${FILE} parts have been merged !"
+		fi
+	done
+else
+	echo "${DIRECTORY} not found or not a directory !"
+fi
+
+exit 0
\ No newline at end of file
-- 
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