All Questions
Tagged with encryption luks
122
questions
34
votes
5
answers
113k
views
How can I access volumes encrypted with LUKS/dm-crypt from Windows?
The answer to this question used to be FreeOTFE (https://en.wikipedia.org/wiki/FreeOTFE); sadly, the project has not been updated for three years and its website (http://www.freeotfe.org) is no longer ...
- 549
30
votes
4
answers
22k
views
How resilient are VeraCrypt and LUKS encrypted volumes against data corruption?
The question has been partly answered, but that's still not what I'm exactly looking for. See for Update 1 down bere
I'm planning to encrypt some filesystems with VeraCrypt and LUKS, but my fears are ...
- 2,390
27
votes
4
answers
27k
views
How to mount an encrypted ext3 filesystem under OS X?
I know how to mount an ext3 filesystem in OS X with MacFUSE and fuse-ext2. But how can I mount an encrypted ext3 volume?
I have Mac OS X 10.6 "Snow Leopard" running.
- 2,056
21
votes
3
answers
6k
views
How to make suspend to RAM secure on Ubuntu with full disk encryption (LVM on top of LUKS)?
I'm on Ubuntu 13.04 using full disk encryption (LVM on top of LUKS).
I would like to incorporate luksSuspend into the suspend procedure (and later use luksResume) so that I can suspend to RAM without ...
- 379
16
votes
3
answers
17k
views
How do I determine what ciphers & cipher modes I can use in dm-crypt/LUKS?
I'm using an Ubuntu-based system, and I'm having difficulty determining what ciphers and cipher modes are available to me.
The cryptsetup man page says:
"See /proc/crypto for a list of available ...
Emma
9
votes
1
answer
5k
views
How can I use a keyfile on a removable USB drive for my encrypted root in Debian?
Recently set up root encryption with a couple of LVM volumes inside one LUKS volume, and I am just a little confused as to how I would go about getting it to automatically unlock using a keyfile ...
- 91
8
votes
7
answers
17k
views
System encryption LUKS: What's the strongest and most secure key size?
I'm reading an article on the Arch Linux wiki about system encryption, in an example the author specified a 512 bit key. From what I read on Wikipedia regarding encryption ciphers it doesn't seem to ...
- 81
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
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
7
votes
1
answer
3k
views
How is LUKS dm-crypt secure if the key is stored with the encrypted data?
I'm not a an expert in cryptography, but I've read the project's faqs.
How is LUKS dm-crypt secure if the key is stored with the encrypted data? To me, this seems like hanging a door key on the door ...
- 71
6
votes
1
answer
10k
views
dm-crypt/LUKS passphrase/keyfile length
I have a couple of dm-crypt/LUKS related questions.
Setting up dm-crypt/LUKS with these settings:
cryptsetup -c aes-xts-plain -h sha256 --key-size=256 -y luksFormat /dev/sda1
(1) Considering the ...
- 69
6
votes
1
answer
8k
views
Error unlocking /dev/sdb1: Failed to activate device: Operation not permitted
After updating my PC to Ubuntu 18.04, I'm not able to mount my encrypted disk anymore.
Error unlocking /dev/sdb1: Failed to activate device: Operation not permitted
NAME ...
- 71
5
votes
1
answer
8k
views
Data access speed in LUKS encrypted partition
In Linux (Fedora 28) I have my home directory LUKS encryped, when using Gnome Disk (screenshot), I can benchmark separately the underlying LUKS partition (upper blue rectangle) and the decrypted home ...
- 343
5
votes
1
answer
7k
views
systemd: decrypt luks device on access
I have an external drive with a LUKS-encrypted partition. As the device is an external USB device and I don't always need it, I only want to decrypt and automount on demand. I can easily automount the ...
- 225
5
votes
1
answer
1k
views
Which SSD controllers don't use compression?
I'm in the market for an SSD, but I haven't found any information on which SSDs do NOT use compression on the controller.
The system it will go into requires full disk encryption (provided via LUKS)...
- 53