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Questions tagged [encryption]

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

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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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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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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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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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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
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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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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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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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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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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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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 ...
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How do I set up Trusted Platform Module (TPM) 2.0 on Ubuntu 18.04?

I apologise in advanced if this has been asked and answered before, however I just can't seem to be able to find enough info on this - I did find a few threads but they're only about TPM 1.2 setup. ...
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1answer
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How to install AES Crypt - GUI in ubuntu

I am using ununtu14.04 am trying to install AES Crypt - GUI via command-line in my machine I have tried the installation as per the official documentation but the downloaded file is an exe https://...
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Recovering Encrypted SSD - ddrecover Advice?

I have a 250 gb Samsung solid state drive with a LUKS encrypted Linux installation. Following a power failure, I have not been able to boot or mount the drive (well, technically it booted immediately ...
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LUKS terrible write performance on SSD

Since I encrypted the partitions of "/" and "/home" with LUKS on my notebook, the overall write speed on my ssd is low. Hardware & Software Intel i3 4010U 2/4 x 1,70 GHz (with AES-NI) Ubuntu 18....
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Full-disk encryption of existing system, 18.04 LTS

As I understand it, if I want encryption on my existing system, 18.04 LTS, my best bet is full-disk encryption, and the best way to get that is to back up my data and re-install and encrypt during the ...
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Can root see my encrypted /home folder?

Just wondering if I use ecryptfs to encrypt my /home folder sudo ecryptfs-migrate-home -u username Can another user with root privilege change my password, then login my account using the new ...
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Encrypting a RAIDZ2 pool?

I have Ubuntu Server 18.04 (18.04.1 LTS to be exact) running on my home file server (Dell Precision T3500) and I'm wondering if I can do full-disk encryption on my RAIDZ2 array (NetApp DS4243)? Ubuntu ...
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Unlock encrypted partition and read data

I have 2 hard disks- 128GB SSD, and 1TB. My system drive ( 128gb ssd) encrypted (during Ubuntu 18 installation). I tried to cancel the encryption, but it's failed, and my second disk (1TB) encrypted ...
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Protecting the File System with File Encryption

Short Synopsis of The Issue My current PC is insecure. An attacker can peek in to both my L1 cache and RAM to recover credentials from websites and scripts. I would like to encrypt my bash scripts ...
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How can I put a full install of Ubuntu (encrypted) onto a USB stick, and boot that stick on UEFI devices?

I have a fast USB stick that I want to use as a portable Ubuntu workstation. Basically I want: Be able to run Ubuntu 18.04 off the USB Plug and use into any PC (BIOS or UEFI, but if that makes things ...
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1answer
53 views

Can you use guest account on system with full disk encryption?

I read somewhere that encrypted home directory using encryptfs is not offered as option anymore with latest release. Can I use a guest account on system with full disk encryption?
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1answer
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Luks broken after update from 17.10 to 18.04 [duplicate]

I have a laptop with 17.10, with all updates. It is using full disk encryption I just did the update to 18.04 today. All went well, it asked me to reboot at the end, so did I. Upon boot, I was ...
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1answer
60 views

Unable to decrypt text files with openssl on Ubuntu 18.04

I am unable to decrypt a number of text files I encrypted with openssl on Ubuntu 16.04. I always get this error message: $ openssl des3 -d < ~/ISRIC/credentials.txt.des3.old > ~/temp/...
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Ubuntu Cuckoo Sandbox installation -cryptography version mismatch

Python 2.7.15rc1 OpenSSL 1.1.0g Cuckoo==2.0.6.2 $ cuckoo -d Traceback (most recent call last): File "/usr/local/bin/cuckoo", line 6, in <module> from pkg_resources import ...
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LUKS Encrypted Ubuntu + VeraCrypt Encrypted Windows 10

I managed to install both Windows 10 (encrypted by veracrypt) and Ubuntu (encrypted by LUKS following the directions here https://help.ubuntu.com/community/ManualFullSystemEncryption/) to the same SSD ...
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1answer
102 views

Remove NSA encryption Speck

The file speck.ko can be found in /lib/modules/4.18.1-041801-generic/kernel/crypto and it was built by the NSA (added since Linux Kernel 4.17). I really want to remove this thing from my computer. If ...
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1answer
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Trouble to run commands after changing user password with home directory encryption

I needed to change a server password, done that by passwd. Thing is, this Ubuntu Server installation uses the home encryption aparently. Once I changed the password, after some package update, the ...
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1answer
84 views

Ecrypfts to LUKS on ext4 partition

My home directory is encrypted using Ecrypfts (AFAIK). I'm using dropbox service running in the background that syncs local files with the cloud. Starting November '18 dropbox will only support ext4 ...
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Why is full disk encryption faster than home encryption? [duplicate]

Since Ubuntu 18.04 LTS, home encryption is no longer available. The Release Notes state: The installer no longer offers the encrypted home option using ecryptfs-utils. It is recommended to use ...
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Setup encrypted LVM with another OS installed

I'm trying to install Ubuntu 18.04 Server and have followed some guides as to how to achieve such (usually it includes cryptsetup, lvcreate and others) but I always get stuck on the first boot. My ...
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Disks is saving my password to keychain

I formatted and then encrypted an external hard drive using Disks. Each time I plug in the hard drive via USB it requires a password to unlock it to view contents on other computers. My issue is that ...
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1answer
739 views

Protecting sensitive data when giving the laptop to a technician [duplicate]

Suppose that my laptop does not boot and I have to give it to a technician for repair. This gives the technician access to my hard-drive and all the material in it. I can take out or encrypt the hard-...
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Dual booting encrypted ubuntu with windows by installing windows after ubuntu

I am trying to setup a dual booted system where both Ubuntu and Windows are installed each encrypted with their respective encryption methods (LUKS for Ubuntu and Bitlocker for Windows). I noticed ...
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1answer
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File encryption with Lubuntu? [duplicate]

I need a file encryption program for Lubuntu v18.04. Where can I find one? (I don't see any such program in the System Tools --> Software folder.
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1answer
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Does Ubuntu's disk encryption work along side Windows 10 in a dual boot system?

This question is in regard to a development machine that is dual boot. I have source code I want to protect on both the Ubuntu side and the Windows 10 side. Does Ubuntu's disk encryption work along ...
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1answer
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Can I view the password of a mounted encrypted volume?

First: yes, this was stupid, I know A couple weeks ago I set up a new Ubuntu 18.04 machine, and included full disk encryption. It's been running since then, just locked at night. Today I was about ...
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1answer
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Will I be able to access my encrypted home folder if I reset my lost password on Ubuntu 16.04.4?

I installed Ubuntu with the encrypt home folder option but I have forgotten my root password. If I reset my password, will I be able to I gain access to my encrypted home folder?
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1answer
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GParted won't seem to let me shrink an encrypted partition

I have a 1TB (or thereabouts) SSD drive on my laptop, on which is installed Ubuntu 14.04. I want to increase the size of the boot partition, so I've booted from a live CD, and ran GParted. I have ...
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Is Using LUKS on UEFI Mode Provide the Same Sec As Legacy?

In the past I've always used Legacy mode to install Linux however this time I thought I'd just use UEFI becuase why not? My Desktop and Laptop support it. I never create the partitions manually, I ...
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Boot Ubuntu 18.04 without encryption password [duplicate]

I recently installed Ubuntu 18.04. When I was completing the installation I encrypted the system startup unintentionally. Now I do not know how to remove this boot password. I want it to start with ...
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1answer
84 views

Cannot encrypt Ubuntu installation in dual boot

I’m trying to install Ubuntu 18.04.1 LTS on a new laptop alongside Windows 10, however, I want to encrypt the data. In this version if I select “erase everything” It makes that option available, ...
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1answer
51 views

Booting from ISO image located on a filesystem that's on a USB stick

I have an ISO image of a Ubuntu based system (Linux Mint 19). I'd like to put it on an USB stick and be able to boot from it, but I'd like to keep the rest of the USB stick writable (and encrypted; ...
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Multiboot-Ubuntu with Encryption (UEFI)

I want to install three Ubuntus on one system with encryption on UEFI. How should my partition table look? This is now my partition table: (Click image to enlarge) I want to edit this to a UEFI ...
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VM applicate + encryption

I would like to create a Ubuntu VirtualBox appliance with a bunch of preconfigured software and settings. It will be used as a more-secure and controlled place to do certain tasks. I had full-disk ...
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Disk Sda5_crypt

Last evening I installed Xubuntu 18.04 LTS on my PC, but I don't manage to enter the new operative system because it's answered to me to insert a pass I haven't. The only words written on the monitor ...
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How do I encypt Ubuntu partitions without encrypting the whole drive?

The problem I'm having is with some of the limited encryption options on the install disc. The option for encryption is "encrypt the new ubuntu installation for security" but from what I can it'...
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Generating an encrypted pgp message verses a encrypted pgp file.

I am using seahorse to encrypt a message. By right-clicking in the nautilus GUI and selecting "Encrypt," then selecting the recipient. However, if wanted to send an actual message in the format ...
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Ubuntu 16.04 cryptswap

I have a new installation of Ubuntu 16.04 and when installing I chose to encrypt my home directory. However when Ubuntu loads up I get the following: - Enter passphrase for disk cryptswap1 on none! ...
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Nautilus encrypted file not asking for decryption password

In Ubuntu 18.04 I encrypted a file in Nautilus (Files) using the right click 'Encrypt' menu selection. I use the 'Shared Passphrase' option and enter a password. I do not check the 'Save in password ...