Questions about encryption such as home folder encryption, partition encryption and file encryption.

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confused about keys and using it with multiple computers

well I am confused about the keys and security. Ive tried searching for a answer, but I just wind up more confused Anyhow, my linux box, called skyline, has ssh enabled and I also edited the ...
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Ubuntu 14.10 Gnome/Nvidia Driver Conflict

I installed Ubuntu 14.10 yesterday with full-disk encryption, installed all the updates, and then I installed G++, Clang 3.5, Intel Parallel Studio 2015 (Update 1), and Nvidia's newest stable ...
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2answers
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Can I unencrypt a specific directory under home directory while the entire home directory is encrypted?

The reason why I'm asking this is that the encryption leaves up to a length of 143 characters to be used as filename. While normally it doesn't seem like a trouble, it becomes one when the name of a ...
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1answer
26 views

Differences between md5pass and md5sum

This question may be insane ,but due to definition of hash algorithms, hash algorithms are some kind of functions that accept variable length input and make it encrypted and the output always has a ...
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8 views

Is there a “session-wise” filesystem encryption?

AFAIK, there are partition encryption, or filesystem encryption like ecryptfs. But both of them only ask permission when mounting. By which I mean, once I mounted them, any other users could access ...
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32 views

Decrypting .glade gives XML Error

when executing a commercial software an empty window opens. In the log-file I can see the following error: Decrypting resource: /Gui/GuiMainWindow/GuiMainWindow.glade XML Error Count: 0 I already ...
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25 views

ipsec-tools can't encrypt packets after changing destination ip address?

I established a tunnel IPsec connection between two networks like the following scenario IPsec-tools and racoon and it works fine (see image) But in gateway1 I run a simple program that listen to ...
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26 views
+50

How can I get an encrypted flash drive to automount in Gnome+xmonad?

I'm running Ubuntu 14.04. Whenever I'm using the default Unity desktop environment (or using the Gnome Classic session with Metacity), a flash drive with a LUKS-encrypted filesystem that is ...
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1answer
33 views

What happen if I copy data from a Full Disk Encrypted to another computer?

I have an Ubuntu OS in my machine with Full disk encrypted from installation, then I copy a data file (eg. music file or image file) to another computer by a USB, is that file will be encrypted or ...
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I am wanting to switch from Ubuntu to Debian [closed]

I currently have the newest supported version of Ubuntu - 14.10 - Utopic Unicorn. I want to switch to Debian. I have been up all night trying to figure this out. I just can't seem to get my computer ...
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1answer
17 views

DM-Crypt does not accept passphrase

The partition table is: sda1 - /boot sda2 - dmcrypt with LVM, containing root, home and swap volumes Cryptsetup does not accept passphrase, that have been used for a long time and can not have any ...
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1answer
36 views

SED (self encrpyting disk) is crashing on system resume

I have asked this question before (here and here ) My problem is that my Self Encrypted Disk (SED) have to NOT spin down even on suspend! I have tried this, but it did not work and the disk spin ...
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full disk encryption on SSD with trusty [duplicate]

I am about to install a new SSD into my laptop and I have to do full-disk encryption due to regulations where I work. Since this is a new install I can get it right from the outset. How can I install ...
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1answer
30 views

apache2 not starting automatically in Ubuntu 14.04

I have fresh Ubuntu 14.04 installation with apache2. I have noticed apache2 is not starting at the boot. I have tried to enable it with sudo update-rc.d apache2 defaults, but it still doesn't start ...
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1answer
33 views

Encrypting a whole disk

If I have a HDD which is unformatted, that is all partitions deleted. Is it possible with Ubuntu to encrypt the entire thing is there some command/program that can do that for me? I have a Netbook I ...
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1answer
28 views

Cannot enter password to start Ubuntu

I'm running Ubuntu 14.10 with the system disk encrypted with luks. When I start the computer, it shows the Ubuntu logo and asks to enter the password to unlock the disk. However, I cannot enter the ...
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2answers
55 views

how to use ecryptfs with a random directory

I would like to use ecryptfs to encrypt a random directory (i.e., not my home directory or a subdirectory thereof, principally due to disk space limitations on my home partition) and mount that ...
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0answers
32 views

Ubuntu 14.10 instllation error, hdd encrypted

So I unknowingly selected the second option of installation with the encryption. I entered my password and click next. Then it said something and I hit go back then it froze. Happens so my battery ...
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2answers
73 views

Install Ubuntu in dual boot on an encrypted partition

I'm totally new to Linux and I'm trying to achieve something, but I don't know if my plans are okay. I would like to have Windows 8.1 and Ubuntu in dual boot. Windows is on my RAIDed SSDs, and I ...
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10 views

Why is Ubuntu only using SHA1 for WDE?

I'm wondering. In times where Hardware gets faster every week and all the NSA thingies about Snowden and such, why is Ubuntu still using Sha1 when encrypting the system over the GUI (the installer) I ...
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1answer
36 views

Is it possible to resize/move root and encrypted home partitions in Ubuntu 14.04 without losing data? [duplicate]

There seems to be quite a few pages on how to re-partition a hard-drive without lead to loss of data. There are also pages that state that it is not possible with encrypted drives, and other stating ...
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2answers
53 views

Disk Encryption vs Home Encryption

I've encrypted my disk using the Lubuntu disk encryption on installation and also used the Home folder encryption option. I wonder whether this adds security or if the home folder encryption is ...
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1answer
53 views

Is my drive encrypted? I can read encrypted partition without providing password

Please help me determine if my is drive encrypted or not, what did I do wrong? I used Ubuntu Disk Utility for creating encrypted partition and I choose encrypted partition and provided a password, ...
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1answer
37 views

Are there any advantages/disadvantages (if any?) in running luksFormat on raw drive (sdx) vs a partition (sdx1)?

I've been setting up a few LUKS encrypted drives and noticed that I've been creating the encrypted disk directly on the 'raw'(?) drive, ie. /dev/sdb, while many examples via google are showing it ...
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11 views

Sharing from one wireless port to a Wifi card

I have a Toshiba satellite M35. I have a wifi connection, using the built in Intel Corporation PRO/Wireless 2200BG, to the internet and I can share it easily to the ethernet without any issues. Using ...
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3answers
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how to increase swap memory in ubuntu 14.04

I have replaced windows with Ubuntu 14.04. My Windows was on drive c & I have formatted drive c with the Ubuntu but during the OS installation unknowingly I had assigned 105mb of swap memory, but ...
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Why does Ubuntu studio 14.10 go to a blank screen when loading disk encryption?

This is an extensive edit, now that i know what makes my screen go blank as soon as my system starts loading Ubuntu (i think). I set up disk encryption when i installed the OS two days ago. The screen ...
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2answers
126 views

Is full-disk encryption making my system unstable?

About six months ago I installed Ubuntu 14.04 on my laptop with full disk encryption (FDE). Now I am considering turning off FDE because I think the feature is making my system unstable. The risk of ...
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28 views

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

I have / and swap area of Ubuntu 14.04 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 /dev/mapper/UUID on the ...
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24 views

Xubuntu hangs after crypt setup succesfully

I have done a clean install of Xubuntu 14.04.1 on a computer with full disk encryption and LVM. It has been working just fine for about three days with no problems. Now on start up after entering ...
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27 views

Harddisk operations totally brings down my system respond time to its knees

I have massive system slowdowns during harddisk operations on my PC. My Firefox is responding slow, it gets to a extreme at times that it actually becomes a not responding program and greys out during ...
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33 views

Recover Headerless Encrypted NTFS File Deleted in Ubuntu

My girlfriend had shift-deleted a "Folder Lock" encrypted locker file from my NTFS external drive using her Ubuntu PC. That file has <.flka> extension with NO known file signature. As far as I ...
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21 views

Surespot on Ubuntu 12.04

Is this possible or no? I would like to communicate via surespot but my laptop is available and not a mobile. ... also virtual box is not an option for me.
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i broke encrypted swap partition. how to bring it back?

i installed kubuntu 15.04 a while ago with encrypted home and swap partitions. everything worked as a charm but today i decided to install Kali Linux on other partition aswell (no encryption anywhere, ...
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1answer
77 views

eCryptfs - Cannot decrypt filenames

I have encrypted data on an external HD mounted on /home/username/.Data. I am trying to decrypt it to /home/username/Data. Although I can successfully read the files contents, I cannot manage to ...
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65 views

Migration from Truecrypt to LUKS

I am looking for an alternative for True-crypt which can be used both at the disk level and with portable media. Having installed Ubuntu 14.04 ticking 'with disc encryption' enabled, it works very ...
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34 views

Using hardware Encryption instead of SSL

I am using Freescale iMX6 security processor's CAAM for encryption and decryption of data. But how do I make my system use the hardware encryption instead of software? Do I have to make changes to ...
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52 views

Recovering GPT w/ encrypted partition

I have a removable HDD whose partition table became corrupted during an interrupted file transfer. The device should contain a GPT with a single ext4 partition encrypted by dm-crypt/LUKS. lsblk: ...
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1answer
46 views

GPG Key/File Naming Confusion

When managing encryption keys in Ubuntu, I created a GPG key through the CLI with gpg --gen-key. Ubuntu provides a nice little GUI for managing keys called "Passwords and Keys". It however lists keys ...
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78 views

Recover Data from Encrypted LUKS HDD

Hei, I really need help with this! Yesterday my Kubutnu wouldnt boot anymore so I booted with a Live CD and could fix the problem with this Tutorial: ...
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28 views

Creating SHA-512 password with function crypt

I want to create an encrypted password in a C program with the function crypt with the SHA-2 based hashing algorithms that are supposed to be included in the GNU C Library used by almost all Linux ...
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0answers
38 views

Crypted Ubuntu 14.04, how to increase boot partition?

I have installed Ubuntu 14.04 inside a virtual image, running on an Windows 8 Host. System is completely crypted, I guess that's why I got this error. When I start the image I get just the screen you ...
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1answer
32 views

how to encrypt a dual booted Ubuntu and win7 system

I am very new to Linux and I wanted to encrypt my newly installed Ubuntu system. Only issue is that I have a dual booted system with Win7, and when I tried to install the Ubuntu alongside with win7 it ...
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1answer
63 views

Dual boot Ubuntu and encrypted Windows 7

I have a work laptop with Windows 7 installed using Check Point Full Disk Encryption. The HDD was dying, so I installed a larger SSD and copied the contents of the old HDD over to it using dd. So far ...
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1answer
35 views

Reinstall with full-disk encryption

I'm looking to reinstall ubuntu (actually, switch from ubuntu to xubuntu) and currently have full disk encryption enabled. I downloaded xubuntu to a USB and booted of it; when going through the ...
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1answer
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14.04: login loops back on itself - ecryptfs

This problem follows on from 14.04: No Auto login at User Account settings - I am administrator (see all comments) I tried to remove encryption via this link How can I enable autologin for my user ...
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1answer
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In trouble for login after changing username!

I've been using Ubuntu 14.04 for a few months (as a beginner)! A couple days ago I changed the user name to NEWUSER and got stuck at the login screen afterwards, though being able to login from the ...
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Ubuntu 12.04Lts

is the any method to make full disk encryption before install in Ubuntu 12.04? I see in Ubuntu 14.04 lts we can before installation , but in 12.04 I cant find it! any solution ?
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How safe encfs encrypted files are

Just recently got interested in encryption and some things are unclear. Say my ubuntu user is password protected and i have an encrypted folder. Now let's say someone takes my laptop, checks if i have ...
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125 views

Bitlocker like software for Ubuntu

Is there a tool like the Bitlocker to encrypt the whole Ubuntu partition? To be more specific every time I try to boot in the Windows partition a Bitlocker screen shows up and asks me to insert a ...