LUKS stands for Linux Unified Key Setup, a disk-encryption specification. (It does not refer to Rodopi Luks cigarettes!)

learn more… | top users | synonyms

0
votes
0answers
84 views

How to revert a LUKS encryption over ecryptfs

I had an encrypted /home folder under Ubuntu. As far as I can tell, it was encrypted using ecryptfs. It was using ~890 Gb of a 904 Gb partition. But then I tried Antergos, an Arch derivative, and made ...
0
votes
1answer
16 views

Is it possible to skip the secure delete step when installing Debian with LUKS full-disk encryption?

I'm installing Debian using LUKS full-disk encryption onto brand new 500GB hard drives. Currently it's taking ~24 hours to prep the drive for installation by securely deleting the drive. Since it's a ...
1
vote
1answer
49 views

Can DoxBox ( or FreeOTFE Encfs Truecrypt ) prompt and mount an encrypted file volume or encrypted disk partition before Windows boots to its GUI?

I would like to Encrypt a secondary drive (NOT the OS/boot drive) and have it mounted and drive letter mapped etc, before Windows 7 gui boots up. This is because I will have mapped some user data onto ...
1
vote
2answers
81 views

LUKS partition automount fails at boot

I have an encrypted Ubuntu 14.04 Desktop setup. The encrypted root partition is created using the Ubuntu installer default parameters (choices "Erase disk and install Ubuntu" and "Encrypt the new ...
0
votes
0answers
41 views

Resize encrypted lvm volume and reallocate the space to windows partition

Here's a diagram of my solid state drive's partition setup. sda sda1 - boot (ext4) sda2 - LUKS Encrypted Partition LVM Volume Group Swap Logical Volume (ext4) Root Logical Volume (ext4) Home ...
0
votes
0answers
151 views

Booting Gentoo on LVM inside LUKS with gpg encrypted keyfile

I'm trying to install Gentoo on LVM logical volume inside LUKS container encrypted with key file encrypted by GPG with passphrase. Everything was going smoothly until I tried to boot. I'm building the ...
0
votes
0answers
94 views

Debian Wheezy doesn't map LUKS partition on boot

Firstly, I apologize for my English. It's really hard for me to write this lines; please, understand if I'm not clear enough or I explained very briefly way. I have an encrypt partition with LUKS ...
0
votes
0answers
128 views

Full encryption of multi user Linux Mint Installation and separatly encrypted homes

I have installed my Linux Mint System multiple times already with manual partioning and with full encryption in place. (A good tutorial and/or automatic script, that gives you a better control of the ...
0
votes
1answer
189 views

Migrating existing Debinan installation to LVM on LUKS with encrypted /boot

I have a VirtualBox with Debian Jessie. After some point I decided to create new virtual drive, encrypt it with LUKS, and copy old system to it without reinstalling. I've used several guides (1,2,3,4) ...
1
vote
0answers
28 views

LUKS partition recovery

A drive with 2 partitions - 1st is plain ext4, second is encrypted LUKS. The partition table has been overwritten. I've found the beginning of the second partition , which i need to recover, thusly: ...
0
votes
1answer
128 views

How to recreate encrypted dm-crypt/LUKS partition with predefined UUID on Linux?

I have / and swap area of Ubuntu 14.04 LTS (and Linux Mint 17.1 LTS) encrypted in dm-crypt/LUKS. / and swap area reside in /dev/mapper/UUID_1 and /dev/mapper/UUID_2. Is it possible to recreate the ...
0
votes
1answer
56 views

Set parameters for Linux Full Disk Encryption?

How do I change the parameters (algorithm, hash, key-lengh, block-size, IVs, mode-of-operation, key-derivation function etc.) for the encryption being used by Linux built in Full Disk Encryption ...
0
votes
0answers
34 views

How to use Keyboard Arrow Keys during LUKS key prompt?

I have recently installed Linux Mint 17.1 laptop, during set up I checked the checkbox to encrypt the installation drive. I chose my passphrase, everything installed fine. On reboot, I am prompted ...
1
vote
0answers
46 views

Growing an encrypted RAID5 array without causing alignment issues

Question Is there anyway to tell mdadm to make sure a certain logical sector on the RAID-device stays aligned to the beginning of a stripe when growing a RAID5 array? Problem My RAID5 is encrypted ...
0
votes
1answer
316 views

Is there an AES 256 LUKS encryption option in Fedora?

it was suggested that my post (http://security.stackexchange.com/questions/73140/is-there-an-aes-256-luks-encryption-option-in-fedora?noredirect=1#comment120019_73140) would be better if I asked it ...
0
votes
0answers
51 views

Is there an AES 256 LUKS encryption option in Fedora? [closed]

I have certain information on my drive that I don't want anyone (not even me ;) ) to gain access to. I read recently that Fedora only offers EAS 256 LUKS encryption. This just isn't secure enough ...
2
votes
1answer
252 views

dm-crypt+luks: Can I have a separate header without storing it on the luks encrypted device?

I would like to encrypt my external hard drive with dm-crypt+luks, but I am not satisfied with all the information, that the LUKS header is providing in plaintext. So I would like to keep the LUKS ...
1
vote
0answers
86 views

Move a LUKS partition to the left and resize it

I have a LUKS encrypted partition that is NOT into an LVM volume manager. It's at the end of the hard drive, and its size is 250 GB, but I want to add 50 more GBs to it. I would normally use GParted ...
0
votes
0answers
120 views

Luks Encrypted LVM trouble

When I boot into an LUKS encrypted LVM2 volume it displays an error and then asks for my password. Before it displayed the error but after some tinkering I fixed it to get it to work, however it ...
0
votes
0answers
235 views

Accessing LUKS-encrypted exFAT partition with FreeOTFE

My computer is setup with dual boot Windows 8.1 and Arch Linux, with the windows partition encrypted with BitLocker and Arch encrypted with dm-crypt/LUKS. (I would have used Truecrypt, but they are on ...
0
votes
0answers
15 views

Deleted part mapped to /home, how to map the new one (LUKS)?

I have 2 disks on my computer, on each I have a partition for a Linux Mint 17 installation. Both encrypted using LUKS. The other day, I deleted the partition mapped to /home. Now, I created another ...
1
vote
0answers
231 views

Crossplatform encrypted file containers [closed]

Since the sudden (and strange...) stop of TrueCrypt, I am looking in vain for a cross-platform (Windows/Linux essentially) encryption software that manage file containers (or equivalent) in a similar ...
1
vote
2answers
171 views

LUKS encryption with non-interactive login on RHEL6

I need to have LUKS encryption on this system but during lab development I don't want to have to enter the password at the console each reboot. I'd like a way to set a simple password that can be ...
0
votes
0answers
45 views

Preparing 2-disks in raid0 with luks encryption

I'm trying to setup my new system and I would like to have it working with 2 hdd's in (soft)raid0 striping mode together with luks full disc encryption. I'm having problems getting this to work and ...
0
votes
1answer
182 views

Transferring Linux OS from one drive to another with different partitions

First of all, some related questions: How to move from one drive to another that's a different size? What utility can move my Windows boot partition over to another hard drive? My situation is as ...
2
votes
0answers
113 views

Is there a tool like dm-crypt/luks using RSA encryption?

Is there a library/tool available for linux, similar to dm-crypt/LUKS using RSA encryption instead of symmetric ciphers? I want the "public side" to only be able to create these volumes, and the ...
0
votes
0answers
128 views

Lost luks password, encrypted partition open

Here is the deal. I have a small office email server that I manage and it needs an update, but the owner took it upon himself to go through cleaning the server room and all my notes got tossed (he, ...
2
votes
0answers
272 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 ...
0
votes
1answer
285 views

mounting and accessing Encrypted LVM after reinstallation of Linux

I had Fedora installed on a LVM & had my /home & another file systems in it encrypted. ( i remember the passwords but forgot the cipher protocol used ) Now, I installed Ubuntu without ...
1
vote
1answer
48 views

Is it possible to add a key to an open luks volume whithout providing a current key?

As the title states, I need to know if there is a method to add a key that doesn't require the user to retype the password / provide a keyfile for an already open luks volume. I'd actually need to ...
1
vote
1answer
264 views

Encrypting GPT Windows 8.1 on a multi boot system?

I have setup LVM on LUKS for my Linux partitons which I am very happy with but I would also like to encrypt Windows 8.1. I had planned to use TrueCrypt until I learned it does not support GPT. I would ...
1
vote
1answer
309 views

Can I specify PBKDF2 rounds to use with LUKS/dm-crypt?

I have encrypted my root partition with dm-crypt/LUKS/cryptsetup on Ubuntu 12.04. Since it uses PBKDF2: Is it possible, during creation of the encrypted disk, to specify a custom amount of PBKDF2 ...
1
vote
0answers
42 views

How to install 2 encrypted instances of Linux Mint on the same SSD, both with different encryption passwords?

I'd like to have 2 different Mint installations on the same hard drive, each with each on set of encryption keys, so if I enter one password, it will boot on one, if I enter the other, it'll do the ...
1
vote
0answers
218 views

Automount LUKS encrypted USB HDD with keyfile auth in Mint/Cinnammon

My external backup HDD is LUKS encrypted and can be mounted with password or key file. When plugged in, Cinnammon asks me for a password and mounts it to /media/user/drivename. I want to change ...
1
vote
1answer
70 views

ZFS on top of LUKS partitions

I have weird problem I cannot quite explain. I have three hard disks. One is the root disk sda, and then there are two more, namely sdb and sdc. The latter have two LUKS partitions sdb1 and sdc1 and ...
2
votes
0answers
125 views

Linux LUKS and choice of filesystem

Which filesystem displays the best performance when running on a LUKS encrypted partition? Does it make sense to use f2fs when the LUKS partition is on an SSD, or does the device-mapper abstraction ...
3
votes
1answer
452 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 ...
0
votes
3answers
450 views

fglrx drivers cause blank luks encryption password screen on boot, on Linux Mint Petra 16

I recently did a new install of Linux Mint 16 Petra on my main desktop, and used the full disk encryption option from the installer. The installation went smoothly, and the encryption password prompt ...
1
vote
0answers
107 views

Checking if Luks header is damaged

Is there any way to check if the Luks container header is damaged? My luks container is refusing to be opened with its keyfile, saying No key available with this pass-phrase. History of what ...
3
votes
2answers
105 views

Once opened, isn't a volume encrypted using cryptsetup readable by all users?

A volume is encrypted using cryptsetup. Once cryptsetup open ... has been executed, isn't the mapped device then readable by all users on the host? If they know the file system, they can trivially ...
0
votes
1answer
209 views

How to recover LUKS encrypted disk?

I did a LUKS+ext4 encryption on my external hard drive using 'gnome-disk-utility' available in several recent Ubuntu editions. Disk contained only one partition. I lost the partition table of the ...
0
votes
1answer
460 views

(How) can I use VirtualBox (linux guest) to unlock LUKS and EcryptFS on Windows 8 (host)?

I run Linux (Ubuntu 13.10 and Mint 16) most of the time both at work and at home. Occasionally I need to boot into Windows (I dualboot Windows 8 at home or Windows 7 at work). In Windows, I'd like to ...
0
votes
1answer
230 views

dm-crypt on whole disk - cryptsetup /dev/sda?

My question is simple. Can I create a encrypt my whole disk with cryptsetup /dev/sda? Or do I need to create the volume on seperate partition? Edit: I meant a situation, in which I have rootfs on ...
0
votes
1answer
205 views

For LVM on LUKS when does the partition ID for a new install get set to 8e?

Trying to decipher my notes from the last time I installed LVM on Luks, I have a note to create three "primary" partitions for a Dual-Boot installation. The trouble is, after I install Windows, but ...
1
vote
0answers
47 views

How to find out whether a specific mounted Linux file system is located on a encrypted device?

How can I find out via the command line whether a specific mounted file system in a Linux system is ultimately located on an encrypted device? Of course, a generic solution would be nice, but ...
1
vote
1answer
406 views

Recovering a LUKS encrypted partition from dump

I did a Linux Mint 15 install on my notebook a couple of weeks ago, and chose to encrypt the whole disk. Yesterday I could no longer decrypt it (that is, it insisted that either the passphrase or ...
1
vote
1answer
683 views

How to automatically unmount encrypted loop device at shutdown?

I'm using debian testing, and I have a file, it's a LUKS container with ext4 filesystem. My system mounts it with every boot. I had to use the three following files in order to do so: /etc/crypttab ...
2
votes
1answer
1k views

Linux SSD Performance with Luks / LVM

I've recently obtained a Samsung EVO 840 1TB SSD as a hard disk replacement for my laptop (Lenovo X220t, core-i5-2520m, 8GB RAM). So far, I'm not impressed with the resulting performance and request ...
2
votes
0answers
357 views

Uefi and full disk encryption with lvm on luks

I have an asus machine on which i can use old bios and new uefi. I've always used the old bios system, running a full encrypted debian with the following configuration: an unencrypted boot partition ...
18
votes
1answer
894 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 ...