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

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Disk encryption with separate /boot partition

I'm trying to setup an encrypted filesystem with a separate /boot partition and I'm having some troubles and there's no a complete and definite guide about this topic. I'll write down the procedure ...
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23 views

Full Disk LUKS in Debian, Unable to boot after rename partition name in crypttab

Here is the lsblk info: sdf1 vfat efi sdf2 ext2 boot sdf3 crypto_LU --- sdf3_crypto LVM2 --- name--vg--root EXT4 / --- name--vg--swap swap ...
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13 views

How to install openssl cryptographic library on Lubuntu

I'm trying to build cryptsetup 1.6.8 (or 1.7.0) from source using the openssl libraries instead of libgcrypt. ./configure --with-crypto_backend=openssl I did install libssl-dev but it still gives ...
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38 views

Fedora 23 Kernel Panic for All Kernel Versions in GRUB

Every time I try to start my Fedora 23 workstation a kernel panic occurs. This happens even with the rescue option at boot. The first line that appears to give an error is Kernel panic - notsyncing: ...
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19 views

How can I force delete a faulty drive from the Linux device mapper?

I have a faulty HDD which sometimes fails to spin up. It doesn't contain anything important, just my home directory and some multimedia files, so I don't care if the filesystem crashes. However, it's ...
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47 views

Recover luks partition for /home after system erase - cant mount /dev/mapper/MyDevice

I looked on a lot of places and cant find what to do now. I had encrypted /home on 2nd hard drive. I had to format my debian and now want to access my data. sudo fdisk -l /dev/sda1 * 2048 ...
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60 views

I have a corrupt gpt with a luks partition. How do I recover the disk?

I encrypted my drive about a month or so ago with LUKS(through Gnome Disks). It was working just fine and I restarted my computer, then Some time later I tried to access the drive and it wasn't ...
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1answer
12 views

Multiple passphrase volume decryption on Linux

Is there any way to decrypt a volume that's been encrypted using a "standard" or commonly used volume encryption system (such as LUKS) using multiple passphrases? I've been searching for something ...
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27 views

Extend PV encrypted with Luks on Fedora 22

When I initially setup my desktop and partitioned everything I left space available if I needed to extend a LV. Now I am needing to extend a LV but have found it's more complicated than I thought. ...
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1answer
565 views

How to manually setup grub on a seperate boot partition with LVM over LUKS full disk encryption?

I've installed Linux Mint 17.2, with a hard drive partitioned as follows: sdc1 - 100MB ext2 for boot sdc2 - rest of disk as LUKS -> Physical Volume -> LVM Volume The logical volumes are: / ...
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1answer
269 views

Change the keyboard layout of GRUB in stage 1

I installed grub on a EFI based system. So I have the EFI partition on /dev/sdc2 and my LUKS container in /dev/sdc5. I have only one linux partition in the LUKS container. So even /boot with the stage ...
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34 views

dm-crypt with encrypted key on USB

The requirement is to use dm-crypt with a key stored on an on external USB drive. The key most almost be encrypted with some symmetric encryption, decrypted at boot time (by entering the pasphrase), ...
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33 views

Duplicate entry in /etc/crypttab (Debian Jessie)

I am using Debian Jessie 8.1 (systemd init) with an encrypted (LUKS) root partition. I recently noticed, that there are two identical entries for the root partition in /etc/crypttab. Is this really ...
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28 views

Encrypt disk volume with LUKS, enable access without passphrase

How can I set “no passphrase, and don't prompt for one” on a LUKS volume, leaving it encrypted as is? Enabling LUKS encryption is a one-way, time-consuming operation. I need to divide the set-up of ...
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1answer
26 views

Is it safe to encrypt two different partitions with they same keyfile / passphrase?

My question in particular is: Does using the same key multiple times ease bruteforcing the used keyfile or passphrase?
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1answer
87 views

Enabled FIPS on a luks encrypted CentOS system - boot password not longer recognized

I have a CentOS VM instance which was software encrypted during install. The system booted fine (after entering the boot decryption password). My project requires enabling FIPS for OpenSSL, so I ...
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2answers
250 views

Open encrypted volumes created by LibreCrypt in linux

How can I open encrypted volumes created by LibreCrypt on linux? These Volume is created by LibreCrypt on Windows7 and is formatted with fat32. When I tried opening this volume in Linux through ...
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63 views

Install arch linux when lvm on luks keyfile on usb and bootlouder on usb

'm trying to install Arch Linux in the following way: LVM is installed on LUKS when the LUKS key is image stored on USB And the botlaodr is also on additional USB For some reason, even though I did ...
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57 views

How to change from passphrase to encrypted key file in debian using luks?

I have four partitions plus /boot, each one with a different passphrase. I would like to manage unlock of all partitions with a single passphrase that decrypts the gpg.key file on the boot partition. ...
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1answer
62 views

How to restore grub from a separate partition, to boot a luks partition?

My setup is: sda1 /boot ext2 sda2 swap swap sda3 / luks I broke the boot partition. Now when trying to boot manually, cannot figure out how to load crypto modules needed to open the root ...
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1answer
308 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 ...
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75 views

Encryption and Wake-on-LAN [closed]

What I want: I have a storage server that can be turned on remotely via WoL. Now I want to encrypt the data stored on the server without losing the ability to turn the server on remotely While I do ...
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1answer
68 views

LUKS encrypted volume lost upon reboot

Using this guide I encrypted a volume and am able to open and mount it manually. The problem comes after rebooting. On startup the system does not open the encrypted volume, nor is the decrypted ...
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104 views

How can I recover a partition after luksFormat?

How can I recover an ext4 partition after luksFormat? It was late one night when I decided to try gnome-shell 3.16 without messing up my Ubuntu box. So, I downloaded an Antergos image and booted it. ...
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139 views

Alignment with RAID-6 (mdadm) + LUKS + XFS

What I want: I have a 4x4TB RAID-6 array with mdadm. I want the storage to be encrypted and plan on using LUKS. I will most probably use XFS as filesystem. I will add more disks to the array as ...
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960 views

Automatically unlock LUKS partition using a key on an USB drive on Debian Jessie

I am trying to have the encrypted root partition be unlocked on boot automatically using a connected USB drive on a fresh installation of Debian Jessie (no non-systemd upgrade). After following a ...
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1answer
255 views

dm-crypt with LUKS - /etc/crypttab using either keyfile or passphrase

I have my home partition encrypted using dm-crypt and LUKS header. I have two slots in its header: first one is a passphrase and second is keyfile. I have keyfile on external drive which I use only as ...
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143 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 ...
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1answer
55 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 ...
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1answer
172 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 ...
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475 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 ...
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143 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 ...
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471 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 ...
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1answer
468 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) ...
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76 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: ...
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1answer
478 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 ...
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1answer
79 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 ...
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61 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 ...
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1answer
748 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 ...
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65 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 ...
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1answer
839 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 ...
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164 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 ...
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1answer
365 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 ...
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340 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 ...
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2answers
354 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 ...
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1answer
321 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 ...
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185 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 ...
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245 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, ...
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1answer
1k 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 ...
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450 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 ...