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Questions tagged [encryption]

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

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Deja Dup Restore

I would like to add full disk encryption to Ubuntu 18.04. I am aware it is not really possible without reinstalling the OS. I'm wondering if I can backup certain directories with Deja Dup then ...
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22 views

re-installing with existing encrypted root

I'm trying to install ubuntu 18.04 over an existing ubuntu install with an encrypted root directory. After first trying the upgrade, it would only boot into busybox, and I think the problem is that it ...
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Recover files from non-booting FDE system

My full disk encrypted Ubuntu 18.04 installation only shows a black screen after requiring the encryption key, probably because I messed up some libraries. Before formatting and reinstalling, I need ...
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1answer
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grub boots from another /boot partition, encrypted partition

I installed both Ubuntu and Debian, and Debian doesn't show in grub. Apparently it doesn't recognize the boot partition. The encrypted partition of Debian (which is where the OS is installed) is ...
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1answer
41 views

Cannot login, after a failed attempt to uninstall ecryptfs

I probably did a few things wrong on my Ubuntu installation, and I hope that someone here can help me fix that. I'll try to describe in details what I did, if you need more technical detail ask me in ...
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43 views

Setup encrypted LVM on ubuntu 18.04 server edition

While installing Ubuntu 18.04 server edition, the option "Use entire disk and setup encrypted LVM" is missing So how do encrypt the entire disk while installing server edition?
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Files missing from a KDE vault encrypted folder

I have a single vault on my Kubuntu system, (fortunately not containing anything critical). As of yesterday this vault is empty, yet I have not deleted any of those files. Is there any way I can ...
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1answer
26 views

Password protect folder for Windows and Linux

I have a basic question of feasibility - feel free to delete / kill off if too broad or off-topic. I dual-use Windows and Ubuntu because of various work purposes. I have some sensitive files where it ...
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1answer
27 views

Does re-installing Ubuntu wipe out the previous LUKS encryption?

While installing Ubuntu 16.04, I had chosen to encrypt the installation. I want to remove it now.I have backed up all data and I donot care about any data loss whatsoever. Will re-installing Ubuntu (...
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Encrypt internal drives and unlock with USB drive

I've setup a home server using Ubuntu 16. I have a system boot drive (SSD) and 2 internal drives in a mirrored ZFS pool. I'm running an AFP server (docker) for Time Machine backups, Nextcloud (snap) ...
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14 views

Change LUKS passphrase, which device?

I have Ubuntu 18.04 installed on my UEFI machine. I want to change the passphrase of my luks encrypted volume. I already know the commands of how to do this. However I don't know which device I need ...
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External drive encryption passphrase lost despite “remember forever”, LUKS, 18.04.01 LTS

An external drive was encrypted and the passphrase stored "forever". Now the system started to asks for it, after ~6 months of frequent usage. Any ideas where it can be? Thanks.
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1answer
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Is it possible to integrade an existing CryFS volume into the KDE vaults menu?

I have created a CryFS volume by command line by entering the following commands: cryfs ~/Dropbox/basedir ~/Documents/Data_Dropbox Is it possible to manage this CryFS volume with KDE vaults? I am ...
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2answers
59 views

Why am I not seeing encryption as an option in file roller? [duplicate]

Ubuntu 18.04.1 LTS I've done: sudo apt-get install p7zip-full ...but when I launch file roller, I don't see any encryption options and the UI seems very basic.
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Disable weak ciphers with ipsec-tools in esp

i'm looking for a solution for Disable all ciphers Except AES family i use ipsec-tools with ipsec.conf(without ipsec.d directory) and racoon with racoon.conf i found this but dosent work my config ...
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23 views

Can I prevent the root password from being changed?

I found this question through Google. How do I reset a lost administrative password? I'm wondering If I can prevent this by encrypting my HDD with LUKS. How could the system get to /bin/bash if the ...
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56 views

18.10, full disk encryption, fresh install freezing after login

I did a fresh install of Ubuntu 18.10 with full disk encryption (selected on install) onto a Lenovo T480. After the installation completes and the computer reboots I put in my full disk password, then ...
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0answers
74 views

Ubuntu 18.04 - cryptsetup fails to recognize passphrase, unlocking from Live USB works

I recently bought a Ubuntu Edition Dell XPS 13 9370. The machine comes without full disk encryption enabled out of the box, but offers to create a recovery USB drive, when booted from that Ubuntu can ...
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16 views

VeraCrypt incorrect permissions?

My VeraCrypt is giving me an error every time I start the app but it runs. How can I fix this?
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2answers
66 views

Is it possible to create separated unencrypted ext4 filesystem?

So, I'm thinking about my possibilities considering Dropbox is not supported on the encrypted ext4 filesystems anymore. My first thought was, that I could create a new, unencrypted disk partition ...
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6 views

Tool to encrypt text/hex using different encryption algorithms

Is there a GUI tool to encrypt text/hex using different encryption algorithms supporting IV and different paddings. This is required for integration testing in an environment without Internet access (...
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1answer
154 views

How to Make BIOS/UEFI Flash Drive with Full Disk Encryption

Ubuntu 18.04 Full Disk Encryption now works on Full install flash drives. The ability to separately encrypt home directory / home partition has been eliminated. How to make an Encrypted BIOS/UEFI ...
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1answer
90 views

Does the full disk encryption in the Ubuntu 18.04 installer encrypt all partitions?

As title says, does the FDE option in the 18.04 installer (which is the only encryption option as the home only encryption has been dropped) encrypt the other partitions too? Will it break an existing ...
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Transmission “Error: Unable to save resume file: File name too long”

Got a download error of "Error: Unable to save resume file: File name too long". When downloading a magnet using Transmission. I tried to fix it by downloading the torrent and changing the filename of ...
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2answers
193 views

18.10 upgrade from 18.04 — Login loop. Can't mount private data

Upgraded from 18.04 to 18.10. All worked well until I shut down. Now when I boot up, I get the login loop. Enter passphrase and go back to main login screen. I did the CTRL+ALT+F3 and find that my ...
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108 views

OpenSSL warning in 18.10 when decrypting something encrypted with 18.04

In 18.04 I encrypt files like so: $ openssl enc -aes-256-cbc -in somefile.tar.gz -out somefile.tar.gz.enc I then decrypt using: $ openssl enc -aes-256-cbc -d -in somefile.tar.gz.enc -out somefile....
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bitlocker encrypted external drive

I have already found a few sources which describe how to mount a bitlocker encrypted drive with dislocker in Ubuntu. However all sources state that I should mount via mount -r -o loop at the end. I ...
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1answer
306 views

Can't Move the Dropbox Folder to Ext4 or NTFS partition

I'm using Ubuntu 16.04 LTS. In response to the change in dropbox file system support, I created a new partition on my hard drive to store my dropbox files in. It's 2 GB larger than my maximum dropbox ...
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0answers
36 views

Back up failed error in Ubuntu 18.04

I just upgraded from Ubuntu 16.04 LTS to Ubuntu 18.04 following instructions as it appeared on the screen. I am facing a back-up failure with the following error. Error processing remote manifest (...
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0answers
174 views

New Ubuntu 18.04 xen 4.9 VM will not boot (LUKS setup) - fails back to initramfs

On a fresh Ubuntu install with Xen (learning Xen, proficient with Ubuntu), I try to create a domU PV VM with LUKS encryption, the whole setup procedure goes smoothly, including creating, unlocking the ...
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1answer
105 views

How should I set up swap encryption on 18.04? [duplicate]

Things change over time. The latest question I found on this topic was from 2014 and appears to refer to 14.04. We are running 18.04 server. What is the current way to setup swap encryption? Is the ...
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1answer
419 views

How can I install VeraCrypt on Ubuntu 18.04?

I've downloaded a tar.bz2 file which I'm having problems with. There's no PPA as far as I can tell. I'm using a 64-bit machine. Steagee basically gave commands which are similar if not the same ...
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27 views

Skipping First Password Prompt when Dual Booting Ubuntu and Windows 10 with Encryption

I currently have both Ubuntu and Windows 10 installed on a system, successfully dual booting. Windows uses bitlocker on the system drive and Ubuntu uses LVM on LUKS. GRUB2 is used to boot the ...
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Ubuntu (18.04) Backup (DejaDup) repeatedly asks for password

My Ubuntu backup is repeatedly asking for my password and it will not accept the password that I have previously been using. I have already checked to ensure that various directories in my home ...
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3answers
106 views

Full Disk Encryption and Trash Handling

I have installed Ubuntu 18.04.1 with Full-Disk Encryption with two passwords, one for disk login and another for Home Directory login. If I drag a file to the Trash, then I "Empty Trash," can someone ...
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25 views

Best way to encrypt specific files within a folder, not the entire folder [duplicate]

I need to encrypt only a couple of files that are within a folder, with the exception of the other files. what would be the best way without interrupting the rest of the files? Thanks
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1answer
214 views

Could not find valid key in user session keyring for sig specified in mount option after upgrade from 16.04 to 18.04

About a month ago I updated my 16.04 LTS server to 18.04.1 LTS. The upgrade went fine. However, since the upgrade, whenever a user logs in, there is a message displayed in dmesg or on the local ...
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2answers
56 views

How can I secure an unencrypted swap parition?

Clearly this is an issue and likely it has a solution which might be: This is not required because... This is impractical because... [2 passwords on suspend, for example] Oh. Yeah, we fixed that in ...
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1answer
44 views

For full disk LUKS encryption, is the swap partition encrypted?

18.04.1 I went with full disk encryption. Does this mean I need to concern myself with the swap partition or is that encrypted also? I was expecting "Full Disk" to mean the whole disk including all ...
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1answer
101 views

Udevadm settle not working

I just upgraded to 18.04 on my NAS. I have a script that prompts my user for a luks password and then mounts the drive after it's decrypted. This used to work: cryptsetup luksOpen /dev/md0 md0_crypt ...
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1answer
57 views

Is it possible to re-use an existing encrypted home partition for a new Ubuntu install?

I got an old machine with 16.04. The SSD is split in two partitions, one for root and one for home. The home partition is encrypted. Not sure of the details, I just used the wizard when 16.04 was ...
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272 views

Ubuntu 18.04 with ZFS on root, update to ZFS on linux 0.8 rc1

04 test system, with ZFS on root (system disk) with LUKES encryption. I'd like to update ZFS to version 0.8 RC1 that was just recently released, to test out the ZFS native encryption. What do I ...
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29 views

Large Login Box on Lockscreen

I am running Ubuntu Budgie 18.04, and I'm having some bizarre issues with the password/login box on the lockscreen. This only happens on the screen where I actually lock my laptop. This doesn't ...
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0answers
29 views

Recent instructions for mdadm RAID-1 and LUKS setup on UEFI systems

I have been trying to find a recent document on installing Ubuntu (18.04 preferred) using mdadm RAID-1 mirrors and LUKS underneath mdadm. The main point of using LUKS under the mdadm layer is that ...
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1answer
37 views

Keep encrypted drive open after key is removed from system

I have an encrypted drive that is mounted at boot time. I have three keys for the unit: Slot1: passphrase Slot2: file1 Slot3: file2 For unattended boot (avoiding typing the passphrase), I have file1 ...
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36 views

Problems with recovering data using ecryptfs from Live Disk

I am trying to recover my data from a failed Ubuntu apt-get update && apt-get upgrade command that has sent my system into a bootloop. Currently, my login process involved the following: ...
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42 views

ownership of encrypted drive

I'm using ubuntu 16.04 and I am mounting my BitLocker encrypted drive but I can only mount it in -ro (i.e. in read-only) mode, but I would like to mount it in read-write mode. root@vishal-Ideapad-...
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1answer
322 views

Ubuntu 18.04 on kernel 4.15.0-34-generic boots to BusyBox

The machine was a fresh install of Ubuntu 18.04.1 and used LVM and LUKS during install. The machine was working fine on kernel 4.15.0-33-generic. The kernel upgraded from 4.15.0-33 to 4.15.0-34-...
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23 views

Need help recovering deleted luks partition

After reading various threads for a couple days I noticed a lot of people use Testdisk to recover deleted partitions, the problem I'm having is it's not telling me which particular partitions to ...
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3answers
376 views

Fix ecryptfs in Ubuntu 18.04

ecryptfs is not installed by default in Ubuntu 18.04 (as already mentioned in this AU question). When I installed ecryptfs via apt-get everything seemed to work fine at first. But after a reboot I ...