Questions about encryption such as home folder encryption, partition encryption and file encryption.

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LUKS encryption, switch from passphrase to keyfile

Using LUKS encryption, I set it during the Ubuntu installation. I entered a passphrase. But now I want to use a keyfile and I dont manage to find the right process to. How can I make the switch ...
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Every other boot drive decryption doesn't work

This isn't a 50% chance of happening thing, here's a common sequence of events: Boot into grub, where I select Ubuntu Blank purple screen, type in decryption password and hope it works It does, can ...
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Help needed recovering erased boot disk label

I dun goof'd. Up until about an hour a I had a working installation of 14.0 on my 2013 Macbook Air, with full disk encryption as set up in the standard installation process. But tonight, in the ...
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2answers
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Recovery ubuntu encrypted home

If someone gets physical access to my pc, mounts my ubuntu and changes my user password (e.g. in the shadow file). Will he be able to log into my account and decrypt my (encrypted) /home partition? ...
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How to create a snapshot of an encrypted btrfs @home subvolume?

We are using btrfs for its snapshot capabilities so we can backup user home directories. The user home directories are encrypted with encryptfs. We run sudo btrfs subvolume snapshot /home ...
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1answer
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LUKS encryption, header on a dongle USBdrive?

I am going to install Linux the LUKS/LVM way, in order to have an encrypted disk. In addition, I would like to put the header and passphrase in a USB Key. Thus, instead of entering the passphrase, I ...
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Deleted Kernels from Full Disk Encrypted Ubuntu 14.04 with home directory encryption - help?

I have an Ubuntu 14.04 OS on which I enabled full-disk encryption and home directory encryption. In the process of updating Ubuntu my boot folder was too full to update so I ran a command I thought ...
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Full disk encryption without enabiling LVM

Currently I am building an image to deploy with a fog server (used to deploy images over a network). I am using Ubuntu trusty and am required to have full disk encryption on the machines. The issue ...
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1answer
15 views

why the swap partition is not working

i have setup fully encrypted lvm on my laptop,it have created a swap partition also.But why system does not recognize the swap partition? here is the screenshot link
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1answer
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cryptsetup luksAddKey throwing 'Maximum keyfile size exceeded' error - fix? 14.04

I am attempting to add a homekey entry to my /etc/crypttab in order to prevent entering a 3rd pass upon login on a 14.04 install w/ LUKS (root/swap/home). When I attempt to add the key using ...
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locked folder should ask password even for the same user who set it [duplicate]

Is there any encryption tool available that will ask for locked password for the folder/files even if its the same user who has set the encryption. I have used few of the encryption but those are ...
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2answers
47 views

Password denied after installing from Wubi

I am trying to install a dual boot with windows 7. Old wubi does the job but i have password problems. It doesn't accept my password after setup. I chose password from wubi . I had to install twice to ...
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Unable to enter passphrase for encyrtion - screen looks weird

I have two PCs with encrypted / (home is not separated) partitions. On both i struggle with entering my pass phrase to decrypt the /. One PC has an ATI VGA card with the default driver and the ...
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15.04 Ubuntu, disk encryption

I installed U. 15.04, but neglected to install the disk encryption feature. Is it possible to do so now without re-installing, and, if so, how?
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Dual boot Win7 and Ubuntu 12.04 encryption question - ecryptfs

I have Windows 7 and Ubuntu 12.04 installed on my computer, and I would like to encrypt only my Ubuntu home directory. I have these partitions: system reserved NTFS windows 7 main partition (C:) ...
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1answer
26 views

Recover encrypted home directory: login passwd changed, mount passphrase lost

I have made an extensive research through the site before submitting a new question, but on one side I'm a huge noob and on the other side non of the previous queries seems to fit my case. I'll try ...
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1answer
17 views

Encrypting SD card

I have a small capacity SSD drive on my laptop, to compensate I got a 32GB SD card in my laptop which goes in /media/usr/... and I want to store files and stuff on it. The problem would be if someone ...
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Unlocking luks encrypted partition automatically Ubuntu 14.04

I've been trying to resolve an issue unlocking a luks encrypted partition on boot using Ubuntu 14.04. I've set it up to automatically unlock after the root partition's password has been entered by ...
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1answer
24 views

How encrypt a directory? [duplicate]

I need some tools to encrypt my directory with passphrase and easily open it with passphrase again
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How could I safely delete a truecrypt volume?

I created a truecrypt partition and I don't want it anymore. How to remove/delete this partition? Does deleting the binary file is safe enough?
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What systems/remote desktops allow remote unlocking and locking

I have a very good desktop running ubuntu 15.04. I have a 2gb chromebook for developing on the go. The chromebook is not powerful enough to do what I need, so I need to be able to unlock my pc ...
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Resizing crypt partionon Ubuntu 15.04

How to resize and format cryp-luks encrypted partition to ntfs(Ubuntu 15.04)? Need detailed step by step explanation please!!
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1answer
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Encrypted Drives

I have just made a huge mistake. I encrypted my boot drive and now cannot boot. is there a way to unencrypt my drive in the setup or bios?
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Encrypted LVM Disk Password not “in box”

After a recent installation of Kubuntu 15.04 using encrypted LVM, I have the following problem. When I boot the system, the pretty Kubuntu encrypted disk password screen appears, but when I type the ...
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1answer
25 views

eCryptFS Confusion [closed]

I recently encrypted my home directory chris using ecryptfs. My understanding is that my encrypted files are stored in /home/.ecryptfs/chris/.Private and are mounted to /home/chris when I want to view ...
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2answers
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Why hash file are always different in openssl aes-256-cbc output files?

I tried to encrypt file using this command: openssl enc -aes-256-cbc -in $infile -out $outfile -pass file:$keyfile For the same input file, Why the output files has different hashes.
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Setting up an external drive with the whole Ubuntu OS encrypted there, running 100% isolated from the internal drive and main system

This is somewhat a continuation of My machine runs Ubuntu Desktop 15.04 and I want to separately run Ubuntu from an external encrypted hard drive The objective is to create an isolated (and secure) ...
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login screen to decrypt hard drive

When I boot Ubuntu up, I have to enter the password to decrypt the drive and proceed with the regular boot process. However, all I get is a black screen, no splash screen and no where to enter the ...
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1answer
47 views

Mount external hard drive with LUKS Encryption + LVM

I recently switched to a bigger Hard Drive by running dd if=/dev/old of=/dev/new However now I am trying to get some files that changed after copying, so I connected the old Hard Drive over USB. The ...
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1answer
33 views

Writing an alias that puts a folder and its subfolders/files into an encrypted archive titled with the date

I am trying to write an alias that puts a folder and its subfolders/files into an encrypted archive titled with the date the command is run. Preferably in format "YYYYMMDD FolderName Backup". E.g. ...
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Prevent encrypted drive from mounting in /media

I recently installed 14.04 and am trying to get my encrypted external drive to automount in the folder /usbbackup. Before the reinstall, I made copies of my fstab and crypttab. The relevant lines ...
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1answer
56 views

My machine runs Ubuntu Desktop 15.04 and I want to separately run Ubuntu from an external encrypted hard drive

I need to create an isolated setup, without knowing too much about how that might be achieved by other more technical means. This setup never goes online (the wireless adapter is unplugged) and ...
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What partition formats does Ubuntu support [duplicate]

I want to know which native and non-native partition formats Ubuntu supports, and levels of support (full, read-only, etc.) Also what kind, if any, hard drive encryption it supports.
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244 views

vi is coded and I cannot read it

I don't know why, but my vi editor seems to be encrypted. This is the test I ran. gnome-open /usr/share/doc/xdemorse/examples/xdemorserc.example.gz When I did this I could read it just fine. ...
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Thunderbird Profile on LUKS Encrypted flash drive not working

I want to store my Thunderbird profile on an encrypted USB flash drive and run it from there because I often switch between two computers with identical setups: Ubuntu 14.04 with the same user ...
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How do I encrypt my HDD and combine with my other encrpted HDD

I am trying to combine 2 HDD's. One of them is already encrypted and is my boot drive. The other one is not encrypted and Linux doesn't see it as more disk space. Could someone explain me how to do ...
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1answer
63 views

How long does it takes to encrypt a 1TB usb disk?

I got this 1TB WD usb Disk. I want to encrypt the whole partition using Ubuntu disk utility with ext4+luks and fill up with zeros the space. Any idea how can I estimate how long it will take? The ...
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1answer
27 views

How do I use GNUPG to create a signed message?

To better explain I used gpg --output encrypt.txt --sign encrypt to create an encrypted file that can be decrypted with my public key, but what I would like to do is to output an encrypted message ...
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LUKS partition lost?

I'm starting to getting desperate about a partition encrypted with LUKS which is not recognized anymore. Here's what happend: Tried to resize partitions on sdb5 (lvm1 in crypt-container1). Made a ...
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1answer
282 views

How to create ext4 encrypted partition on Ubuntu 15.04 with new 4.1 kernel?

Can I create a new ext4 encrypted partition with kernel 4.1 on Ubuntu 15.04?
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Can't mount encrypted usb stick

I had a truecrypt encrypted usb stick, which I decided to reencrypt in LUKS through disk-utilities. I encrypted it, tested if I can mount it and put all my files on it. However, after a reboot I can't ...
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Keyboard will not work for encrypted login

I'm running Ubuntu 15.04 (Ubuntu gnome). When I start the computer, it shows the gnome logo and asks to enter my encrypted password to unlock the disk. However, I cannot enter the password. Nothing ...
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1answer
56 views

Access Encrypted Home Folder

Something happened to my laptop recently and whenever I booted it up, it freezes and my cap locks button blinks. I did a little googling on this and it appears that it is caused due to a kernel panic. ...
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151 views

Please enter passphrase for disk .How to fix it?

I'm using Ubuntu 15.04. I don't know what has happened: when I start and enter the passphrase, this message appears: Please enter passphrase for disk ubuntu--vg-swap_1 (cryptswap1) on none! Please ...
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1answer
49 views

What is the expected behaviour for ecryptfs?

I am relatively new GNU/Linux user and currently use Xubuntu 14.04 LTS. I have my main user and I also enabled root account (but not used it and root password is setup). I am interested in ecryptfs ...
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30 views

Changing home folder encryption after changing user password

When I installed Ubuntu 15.04 I chose to encrypt the home folder. Now I have changed the user password and I can still access the home folder. Does this mean that the home folder encryption key has ...
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Cannot acces encrypted usb drive

So I had a USB stick encrypted by truecrypt but as it isnt supported anymore I decided to reformat it with disk-utilities in LUKS. I overwrote everything and formatted the drive with disk-utilities in ...
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How to mount and use volumes in Ubuntu Server that had been encrypted with Ubuntu Desktop?

I have encrypted all my external disks with the default Ubuntu Desktop 14.04 encryption and I have been sharing them to my home network for a long time without an issue. Recently I decided to go with ...
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Encrypted Install of Ubuntu on a SSD and SSD Support for Encryption / Performance

I am looking to purchase a SSD to use as the primary drive on my computer, with the goal of installing Ubuntu (or Linux Mint) with an encrypted hard drive install for security purposes. There's a ...
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Ubuntu 14.04 Issues setting up email encryption in Thunderbird with Enigmail

I am having trouble setting up Email Encryption in Thunderbird using Enigmail. I created encryption keys on another Linux machine running Zorin without any issues & exported it to my external hard ...