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

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GCM-AEAD support for ubuntu system running linux kernel-3.10

I am trying to implement a AEAD sample code for encryption Using GCM encryption. But I always get invalid argument error while setting the key static int init_aead(void) { printk("...
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encryption with multiple keys

I was wondering if key splitting (also known as secret splitting or secret sharing) is possible with ecryptfs or Ubuntu in general. I know that it is possible to have multiple keys which can all ...
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Recover Ubuntu 14.04 Encrypted Install

I have an encrypted install (Full drive, not only home directory) of Ubuntu 14.04 on a 1TB SSD. I do know the passkey to unencrypt everything. It's just a matter of finding the files now. Here's what ...
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Encryption enabled on Ubuntu Snappy Core

Is there any kind of encryption enabled by default in the latest Ubuntu Snappy Core release? Is the home dir encrypted? or other locations?
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2answers
41 views

Is it insecure to to have a password on the clipboard?

So I've been using truecrypt for several years now. About 6 months ago before I learned off my password (it was really long and I didn't want it vulnerable to word-lists) I used to copy and paste it ...
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30 views

Ubuntu 16.04 - Trying to disable home folder encryption

I am trying to disable the home folder encryption on my Ubuntu 16.04. I followed this tutorial, but unfortunately something went wrong: http://www.howtogeek.com/116179/how-to-disable-home-folder-...
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1answer
24 views

Best backup approach for a USB drive [on hold]

I'm currently using the grandfather, father, son approach to create backups of my everyday usb drive which I always carry around with me. The full drive is encrypted using dm-crypt and I use dd to ...
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2answers
38 views

How safe is luks?

I constantly think about encryption, and how safe it might be. The general information I have tends to be secured by passwords that range in the hundreds with random key combinations in between random ...
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31 views

How do I fix: PHP Fatal error: Call to undefined function Illuminate\\Encryption

PHP Fatal error: Call to undefined function Illuminate\Encryption\mcrypt_get_iv_size() in /var/www/html/application/vendor/laravel/framework/src/Illuminate/Encryption/Encrypter.php on line 303 I am ...
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39 views

Question about SSD's failing? Unable to mount partition during install?

I recently bought a Samsung 850 Pro 256GB from Amazon. First thing I do on every device is use openssl to write random AES information to the entire drive openssl enc -aes-256-ctr -pass pass:"$(dd ...
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7 views

Migrate crypt-luks disk with also encrypted home

I have Ubuntu 14.04.4 on my machine and used crypt-luks to encrypt the harddisk. Plus (I now know that was not the best idea) my encrypted home-directory. I now bought an additional SSD drive and ...
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1answer
31 views

How can I encrypt all my internal drives on install and mount them at start?

I have more than one physical hard drive in my computer and I want to encrypt them all on a new installation of 16.04, so that no data can be read from outside the operating system. However, it is ...
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What is the preferred way to store secret data on Ubuntu touch?

I am developing an Ubuntu Touch app which shall connect with an e-mail server. However, I do not know how to store the password so that it is safe, for example from abuse by people buying used phones ...
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1answer
29 views

Why doesn't Ubuntu/Thunderbird save my PGP key?

I installed Thunderbird and followed the instructions from: https://help.ubuntu.com/community/GnuPrivacyGuardHowto to set up PGP. First it worked, but after restarting my system the next day, I wasn'...
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42 views

How to view Ubuntu files through Windows?

So, this question is probably not what you think. Basically, I successfully mounted my Ubuntu partition to my Windows 10 partition, and I'm able to see my drive. However, whenever I try and find ...
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1answer
29 views

How can I setup an encrypted home directory or encrypted disk using TPM?

I'm running Ubuntu 14.04 on a Dell computer that has TPM. I need to protect the files in the home directory in case the disk is removed from the computer and plugged into another computer, ...
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0answers
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How to encrypt my hard drive so that it can be opened in Windows, Linux, and Mac OS? [closed]

I need to encrypt my external hard drive in such a way that it can be read across OSes. It seems that TrueCrypt was a cross-platform solution, but the software has been declared unsafe to use by its ...
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1answer
118 views

Won't boot (drop to busybox) after kernel upgrade (with encrypted disks)

I have two systems - a 14.04.03 LTS and 16.04 LTS, both of which are not booting after recent kernel upgrades. Any help would be appreciated - I'm no expert, but it seems to me like the new kernel ...
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2answers
41 views

GnuPG generating public/private key pair where public key and Private key are same and not different

I want to generate GnuPG public private key pairs. I have gpg and not gpg2 installed.So I went to terminal and did: gpg --gen-key output: Please select what kind of key you want: (1) RSA and ...
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1answer
52 views

How to move GRUB from the MBR to another partition?

So, I'm fairly new to Ubuntu. My current set-up is dual booting Windows 10 and Ubuntu, what I want to do is move the GRUB from the MBR to another partition so I can encrypt the Windows 10 partition ...
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0answers
55 views

Encrypt folders with a nice gui

I am currently using encfs 1.7.4 with gnome encfs manager 1.8.17 to encrypt my confidential files. This manager has quite a nice gui that allows me to quickly mount available (previously mounted) ...
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35 views

Why is ubuntu installer failing to create and mount encrypted partitions?

Before running ubuntu 16.04 installer I made myself a simple partitioning scheme for encrypted home, encrypted /, and encrypted swap. After selecting the proper settings in the "installation type" ...
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2answers
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Where do I store my private keys?

I have one GPG Personal key, two SSH RSA keys, and one Machine Owner Key. What would be the best way to keep them safe if I don't want to take them off my hard drive?
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1answer
149 views

Why I can't login without a password in my encrypted account?

I have an encrypted disk, and I get asked for a password before reaching the login prompt, then again to log in. As I have only a single user account, the password to which is the same as my disk ...
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1answer
39 views

Will my Ubuntu still work when I move my encrypted SSD to a replacement laptop?

I might have to replace my laptop that's running Ubuntu 16.04 from its SSD. The drive is encrypted, and so is the home directory. If I get a replacement laptop of the same model I would expect just to ...
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0answers
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Lost Password in Ubuntu 16.04 [duplicate]

I installed Ubuntu 16.04, encrypted home directory. Jotted down system info including password, etc., in a document which will presumably be in /home/mike/somewhere. Hadn't printed the file to ...
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Open LUKS encrypted disk with only password

My PC has 2 disks: SSD: Ubuntu with LUKS encryption HDD: My files with LUKS encryption (same password) I installed new Ubuntu on SSD and now I want to open my HDD in it but when I enter password ...
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Scrambled phonecalls on bluetooth car kit using Ubuntu phone

All right so I have a problem using my phone in combination with my Bluetooth car kit. What I can do: Connect to car kit Listen to music See my contacts See my incoming/outgoing/missed calls list ...
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25 views

Encryption failed and unable to wipe hard drive

My encryption failed on one of my laptops; now it believes the caps lock is on, and the arrow keys don't work. My only option looks like*Ubuntu in GNU GRUB. I have a CD to nuke it and a bootable USB w/...
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0answers
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terminal access and swap issue on lubuntu 16.04 install on HP mini 1000

My goal is to install an encrypted Lubuntu partition on my HP mini. I am trying to install Lubuntu 16.04 i386 (downloaded direct from ubuntu.com), onto an HP mini 1000 (model 1116NR with 16GB ...
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37 views

How to install Ubuntu onto an OS X bootable and encrypted USB stick?

Im trying for now 3 days to install Ubuntu Desktop on an encrypted USB stick that is bootable by OS X. Preface: I tried it several times, destroyed 3 OS X installations, x Ubuntu installations and ...
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Booting with splash (Plymouth) only asks for one password, but multiple without spash?

OS: Ubuntu 16.04 desktop Kernel: 4.4.0-22-generic /: luks encryption, ext4 /home: 2 drives, luks encryption, zfs mirrored I'm interested what Plymouth does that causes this behavior. Basically I ...
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Is cryptsetup required to unlock fully encrypted disk?

I was running into an issue after upgrading from 14.04 to 16.04. Following an answer, I ran in the root shell: apt-get remove plymouth Yet cryptsetup requires plymouth and it would have been ...
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Boot issues on Lenovo ThinkPad T520

I've recently installed 16.04 x64 on this laptop I received. Installation worked fine, installed with disk encryption. First few boots are problem free, but it has started to randomly have this issue ...
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0answers
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Whe choosing full disk encryption at installation, what method does Ubuntu use to erase the unused parts of the drive?

Does anyone know how Ubuntu secure erases the drive as part of encrypted installation? I have this doubt that if the majority of the disk is zeroed, one might be able to predict the contents of parts ...
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1answer
35 views

Help to recover personal files from encrypted Home folder, Im on USB live USB

I need help to recover my files from "Home" in an encrypted partition with Ubunu 14.02 (I went with the encryption option from the installation). I couldn't boot normally on that system (normally ...
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1answer
36 views

Grub 2 crypto modules prompt issue

I am using grub2 on an mbr disk (not EFI) to boot Xubuntu 16.04. I have sort of a specialized setup, as follows: /dev/sda - MBR - Grub2 installed /dev/sda1 - ext2 - /mnt/boot /dev/sda2 - extended ...
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Full disc encryption key

When selecting a full disc encryption during install ubuntu encrypts the disc, but never offers option to set enc. key? Is this done automatically? Also when enc. passphrase is later changed what ...
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Pre-Login launch of Synergy in encrypted form

I can't find any answer how to start encrypted synergy connection pre and post login screen of my Linux installation. I can run unencrypted connection when I set my server to use non-encrypted ...
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1answer
138 views

Cannot reboot or poweroff Ubuntu 16.04

Ubuntu 16.04 kernel 4.5.4-040504-generic Whenever I try to reboot or power off I receive: Failed to power off system via logind: Transaction is destructive. This began at the same time that I ...
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1answer
36 views

How do I update shadow file password hashes after changing the encryption method?

I had gone through with this link. Suppose my current-encr is SHA-512, SHA-256, or another, the password hash would be stored (in /etc/shadow) of the user based on the current encr and would use ...
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1answer
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Installing Ubuntu 16.04 with home encryption on a NVMe SSD

On a Thinkpad X1 Carbon 4th Generation installing Ubuntu 16.04 with home encryption enabled I ran into the same problem as described here: After new Ubuntu 15.04 installation, startup asks for ...
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Why enter passphrase for cryptswap?

After some moving of partitions, my Ubuntu Mate still boots, but strangely it asks for a passphrase for the cryptswap1 volume. I don’t enter anything and hit enter and it works. As I understand it, ...
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Decrypt home directory using mount pasphrase - files still encrypted

I am trying to recover data from an Ubuntu installation with an encrypted home directory mounted on a separate partition /dev/sda1. I don't have the login passphrase, but I do have the original mount ...
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139 views

Asus E200H, keyboard does not work for entering encryption password

For the disk encryption password, I cannot type anything and the keyboard/mouse doesn't work. I've tried the options i8042.nomux=1 i8042.reset to no luck. With the option nosplash, I see this: [ ...
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Can't restore encrypted backup created with 10.04's deja-dup on 14.04 [closed]

I ran a Deja-Dup backup on an Ubuntu 10.04 LTS machine. It was an older version of Deja-Dup that came with 10.04 LTS. I password protected it. Then I installed 14.04.3 LTS Trusty Tahr from the 'Try ...
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1answer
29 views

Ubuntu 14.04 full disk encryption

I would like to use full disk encryption on the existing installed ubuntu 14.04 machine, please guide me on how I can achieve that. Regards, Kranthi
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1answer
24 views

Can (or should) a script perform a login?

I have a nightly process that SFTPs files from a Windows server to our Unbuntu server (12.04.5 LTS) using my username and login. A script is setup via cron (sudo crontab -e) runs later to copy those ...
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1answer
47 views

Common protected (Encrypted) partition for both Windows and Ubuntu

I have installed Windows 10 and Ubuntu 16.04 on my hard drive. I like to encrypt a common partition which will be available for both Windows and Ubuntu. When I was using Windows as my only Operating ...
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Fresh install encrypted all my data

I was runing an old version of ubuntu (15.10) and I decided to perform a fresh install of the last LTS version 16.04. Under 15.10, I had a user (rz) with all my personnal data. I installed the 16....