backup-encrypt

#!/bin/bash
dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
file=$1
publickey=$dir/backup-key-public.pem
if [ ! -f "$publickey" ]; then
	echo "Public key $publickey not found."
	exit
fi
if [ -f "$file" ]; then
	dirkey=$(openssl rand -hex 16)
	dirkey=encrypt_backup_$dirkey
	mkdir "$dirkey"
	key=$(openssl rand -hex 32)
	echo $key > $dirkey/key.txt

	openssl rsautl -encrypt  -pubin -inkey $publickey < $dirkey/key.txt | base64 > $dirkey/encrypted-key.txt

	7za a -tzip -p$key -mem=AES256 $dirkey/$(basename $file.zip) $file > /dev/null 2>&1
	tar -zcvf $file.tar.gz -C $dirkey $(basename $file.zip) encrypted-key.txt --strip-components=2 --exclude "key.txt" > /dev/null 2>&1

	rm -rf $dirkey
	rm -f $file
else
	echo "File $file not found."
fi