Automatização para a criação de unidades criptografadas.

• Download l4sencfs.sh
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Esconder código-fonte

#!/bin/bash

echo "
#######################################################
#######################################################
########### L4S - Encrypted Filesystem ################
#######################################################
#######################################################
############# www.linux4sec.com.br ####################
#######################################################
#######################################################
#######################################################


"
echo "

    Digite \"criar\" para  criar um novo arquivo,
     digite \"montar\" para montar uma unidade
 ou digite \"desmontar\" para desmontar a unidade

"

echo "
"
read opcao

if [ "$opcao" == "criar" ];then
#COMANDOS PARA CRIAR
echo "Digite o tamanho da unidade em MB:"
read tamanho

echo "Digite o nome do arquivo a ser gerado:"
read nome

dd if=/dev/zero of="$nome".l4s bs=1k count="$tamanho"k 2>&1&>/dev/null
loop=$(losetup -f) 2>&1&>/dev/null
losetup $loop "$nome".l4s 2>&1&>/dev/null
cryptsetup --verbose --cipher aes-xts-plain64 --key-size 512 --hash sha512 --iter-time 5000 --use-random --verify-passphrase luksFormat $loop |echo "Digite \"YES\" para iniciar"
cryptsetup luksOpen $loop l4senc
mke2fs -b 1024 -m1 -j /dev/mapper/l4senc 2>&1&>/dev/null
mkdir /mnt/l4senc 2>&1&>/dev/null
mount -t ext3 -o defaults /dev/mapper/l4senc /mnt/l4senc 2>&1&>/dev/null
umount /mnt/l4senc 2>&1&>/dev/null
cryptsetup luksClose /dev/mapper/l4senc 2>&1&>/dev/null
losetup -d /dev/loop* 2>&1&>/dev/null
echo "

Arquivo "$nome".l4s criado, guarde seu arquivo de unidade criptografada, e nunca crie outro com o mesmo nome e na mesma pasta, pois o atual poderá ser substituido!

"




elif [ "$opcao" == "montar" ];then
#COMANDOS PARA MONTAR
if [ -z $1 ];then
echo "

Para montar, use: l4sencfs arquivo.l4s

"
exit

else
umount /mnt/l4senc 2>&1&>/dev/null
cryptsetup luksClose /dev/mapper/l4senc 2>&1&>/dev/null
losetup -d /dev/loop* 2>&1&>/dev/null
loop=$(losetup -f) 2>&1&>/dev/null
losetup $loop $1 2>&1&>/dev/null
cryptsetup luksOpen $loop l4senc
mkdir /mnt/l4senc 2>&1&>/dev/null
mount -t ext3 -o defaults /dev/mapper/l4senc /mnt/l4senc 2>&1&>/dev/null
echo "

Unidade montada em /mnt/l4senc

"
fi

elif [ "$opcao" == "desmontar" ];then
umount /mnt/l4senc 2>&1&>/dev/null
cryptsetup luksClose /dev/mapper/l4senc 2>&1&>/dev/null
losetup -d /dev/loop* 2>&1&>/dev/null
echo "

Unidade desmontada.

"



else
echo "Opcao invalida!"

fi

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