0
votes
0answers
14 views

Archlinux dm-crypt setup problem

I'm trying to setup dm-crypt to have complete encrypted volume and flash drive, that contains all the /boot partition.(i.e. in terms of archwiki I want to achieve #Plain dm-crypt(bit.ly/VNLKw0) ...
0
votes
2answers
86 views

Encrypting drive which has content

I have 2 hard drives 3TB each. The first of these drives is full with very important content. I have encrypted the second 3TB drive using the following technique: ...
3
votes
0answers
256 views

Full disk encryption with dm-crypt (without LUKS)

I am currently trying to achieve full disk encryption using dm-crypt in plain mode without LUKS header with a separate /boot on USB stick. My main goal is to achive plausible deniability on a ...
1
vote
3answers
163 views

How much storage overhead comes along with cryptsetup and ext4?

I want to encrypt the content of a directory in a container with an ext4 filesystem using cryptsetup. The size of the container should be as small as possible and as big as necessary, because I only ...
1
vote
1answer
61 views

Cryptsetup: pre-fill the partition with random data

It says it is an optional step, but it is recommended to do this, it improves encryption to pre-fill the partition with random data. What brings security filled with random data? Is it more difficult ...
5
votes
1answer
267 views

Trying to understand LUKS encryption

I decided to encrypt my root partition with LUKS+LVM. My ThinkPad setup: Samsung 830 128GB SSD 750GB HDD Core 2 Duo 2,5 GHz P9500 8GB RAM But the more I read, the less I understand about those ...
1
vote
2answers
171 views

Does DM-Crypt partition look like random noise?

If I format partition with dm-crypt does its entry in partition table suggest somehow that this partition is encrypted or for someone from outside it looks like regular partition with random noise ...
4
votes
2answers
336 views

How to get a usable full disk encryption with different encryptions for different users

I want to have a full system encryption on my laptop. But I have two users, one for home and one for work and want a separate encryption for both. Sure I could do a full disk encryption with dm-crypt ...
3
votes
2answers
304 views

How to encrypt my system such that suspend to RAM works and is also encrypted

How can I encrypt my system (at best using lvm + dm-crypt/luks) such that suspend to RAM works and that everything is in an encrypted state when suspended to RAM?
1
vote
1answer
247 views

Dm-Crypt system encryption with different keys per user

I have found the following example configuration for a system encryption: Example 5: paranoid system encryption • whole hard drive encrypted with dm-crypt+LUKS └──> unlocked before boot, ...
2
votes
2answers
203 views

Is there any utility or procedure available to dm-crypt my existing live data in place to make a full disk encryption

Once I already have a running Linux system installed with live unencrypted data on my HDD. Is there any reasonable way to dm-crypt that entire HDD right in place? (Without backing up then restoring ...
2
votes
1answer
343 views

Will using a compressed filesystem over an encrypted volume improve performance?

Encryption/decryption is often the main bottleneck when accessing an encrypted volume. Would using a filesystem with a fast transparent compression (such as BTRFS + LZO) help? The idea is that there ...
2
votes
0answers
251 views

How can I mount a dm_crypt device during boot, it fails all the time

EDIT: Problem solved, i updated from Debian 6.0.6 to 7.0.0, everything works now! I have a complex problem at booting. Basically, I have a debian apache box, as a music server in my home network. The ...
2
votes
1answer
687 views

Fast encryption for home directory with Scientific Linux (ala' RedHat)

I have a T61 with C2D T7300 CPU/4 GByte RAM. I has SL 6.3 on it, and I ticked the encrypt VG during install. If I start a "normal" windows xp on it, its ~slow.. so.. I need a little performance boost ...
1
vote
0answers
288 views

Multiple distros in VM with encrypted disk

I want to have a GNU/Linux setup on my computer, where I could use different distributions and isolated environments inside an operating system-level virtual machine. Then I also want to share my ...
6
votes
2answers
801 views

Optimize performance for encrypted disk

Recently I tried to copy 200GB to a 1TB external / USB2 / encrypted disk and it took 36 hours. The same copy when the disk was not encrypted took no longer than 1 hour. I am using dm-crypt (LUKS) ...
3
votes
1answer
439 views

Followed SSD-optimization advice, now root partition won't mount rw

Tonight I decided I wanted to tweak the configuration of my Debian install on my netbook (Ideapad S10-2) to work better with the SSD I put in it. I have done this before and never had any issues but ...