All Questions
Tagged with encryption luks
122
questions
-1
votes
1
answer
322
views
LUKS fails to mount drive after reinstalling Linux
I had to reinstall linux on my laptop and had my previous installation backed up to a luks encrypted drive. After the reinstall I am unabled to mount the drive. Instead it throws an error.
Error ...
- 19
0
votes
1
answer
605
views
Expand VirtualBox vdi for Encrypted Ubuntu Guest OS
Background
I created a server inside Oracle VirtualBox with an HD size of 500GB. The host is Windows 10 Pro x64 2004 19041.572. The guest OS is Ubuntu 18.04 and I encrypted the installation using LUKS(...
- 1
4
votes
2
answers
2k
views
Is it safe to move a LUKS encrypted partition to another system and be able to use the same passphrase?
If I have a LUKS encrypted partition with a passphrase, is all the information to unlock the partition contained in the header?
Is the following correct:
The passphrase allows access to the header ...
- 161
0
votes
0
answers
519
views
Files on encrypted LUKS take up more space
I have 2 drives (both the same size). One of them just has a simple ext4 partition on it. The other drive is encrypted with LUKS, opened and also formatted with ext4.
However, when I copy files from ...
- 212
1
vote
1
answer
919
views
Multi user full disk encryption - larger than 8 user threshold. i.e. Not luks
I know Luks has a maximum of 8 I need something that does what LUKS does but allows multiple keys more than the maximum of 8.
All users will need to be able to access root.
It will be used regularly ...
2
votes
1
answer
10k
views
Add new LUKS passphrase or key using existing keyfile for LUKS2 encrypted partition
I have two partitions in my laptop where EFI and /boot resides on the first partition and the rest of linux directories including root resides in second partition which is encrypted with dm-crypt and ...
- 123
0
votes
0
answers
281
views
Is it necessary to protect GRUB with a password if your volumes are encrypted with LUKS?
I understand there are vulnerabilities around somebody using grub to boot into single user mode and escalate privilages on your machine.
But is there any purpose in doing this if your volume is fully ...
- 99
2
votes
2
answers
1k
views
Should I combine LUKS with SED?
So I have a few questions.
1) Would encrypting a SED-enabled drive with LUKS have no positive effects on a drrive? My guess is that it would provide a double-layered encryption as a positive, however ...
- 95
7
votes
1
answer
3k
views
Why does cryptsetup fail with container 10M in size?
I'm trying to create an encrypted volume 10M in size. I know this is possible because I have tombs that are 10M in size. I've run the following commands.
fallocate -l 10M container
cryptsetup -y -v ...
- 209
8
votes
3
answers
8k
views
How can I reinstall Ubuntu focal 20.04 on an existing LUKS encrypted system?
I'm a very long time Ubuntu user (over a decade) but have not been here as I've had no issues with Ubuntu. With the arrival of Ubuntu 20.04 LTS I decided to encrypt my data (or system if needed). I'm ...
- 111
0
votes
0
answers
524
views
Encrypting the hard drive without formatting
Is there a way to encrypt an hard drive in ubuntu after installation? I know we can encrypt while installing the OS but I dont want to re-install the OS. There are 300gb of files and applications ...
3
votes
1
answer
656
views
sd-encrypt with keyfile on optional external partition
Context
I have an encrypted /home partition, which can be unlocked with a passphrase and a keyfile. This keyfile is on a USB drive which I keep at home. This means that someone who steals my laptop ...
- 141
2
votes
2
answers
2k
views
Is there a easy way to encrypt my /home directory?
I'm running Arch Linux and would like to encrypt my personal files in my home directory /home/myusername. What is the recommended way of encrypting it? I've already read about dm-crypt and LUKS. But ...
- 21
3
votes
1
answer
630
views
Security of Cryptsetup partition on Raspberry PI
I cannot open one of my LUKS partitions on Raspberry PI due to the memory restriction.
I already found out that the suggestion in this case is to recreate the partition on the slowest device, which ...
- 141
0
votes
1
answer
946
views
How to decrypt the luks encrypted hard disk password automatically using tpm2 | ubutnu 18.04
I have encrypted my hard disks using default method(Luks encryption) present in ubuntu 18.04 and I have tpm2, now i wanted to save my passwords on tpm2 device and decrypt automatically without ...
