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

learn more… | top users | synonyms (1)

78
votes
7answers
36k views

How to stop using built-in home directory encryption?

I have a new Ubuntu 10.04 installation with encrypted home directory (using the built-in encryption offered by Ubuntu installer). What's the easiest way to stop using encryption? (I.e., to decrypt ...
61
votes
5answers
91k views

How to encrypt individual folders?

Let's say that I have a folder, within my Documents folder, that has files I want no one to access without a password. Is there a way to lock down that folder so that it's password protected / ...
31
votes
2answers
49k views

What to do about “the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present”?

While booting Ubuntu 12.04, the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present is showing. What is this? Is this is an error?
50
votes
8answers
48k views

Is there a tool to encrypt a file or directory?

What's the most popular way to encrypt individual files or folders?
12
votes
1answer
7k views

Encrypted Home… Forgotten Password, but no Passphrase

I am using a cloned hard drive in attempts to restore some old files. The cloned drive has 2 users, one with an encrypted home drive, one without. Both are administrators. When I couldn't get into ...
8
votes
4answers
3k views

How to encrypt external devices using a cross-platform solution?

How can I encrypt an external device (i.e. USB keys, external hard-drives, memory sticks, etc.) so that it would subsequently be readable/writable on any computer that I plug it in? For instance, it ...
79
votes
5answers
52k views

When installing I'm given the option of encrypting my home folder — what does this do?

Does encrypting my home folder make my computer more secure? Do I have to enter my password more if my home folder is encrypted? What else should I know about encrypting my home folder?
11
votes
2answers
2k views

How do I recover data from an encrypted Home directory

I opted to encrypt my Home during install, and now I would like to access my data from a LiveCD, unfortunately I'm having trouble following these instructions. I get the error "mounting eCryptfs: [-2] ...
8
votes
2answers
12k views

Is there a way to do full disk encryption after the install?

Is there a way to do full disk encryption after the install? I have Ubuntu 11.10 installed with /home encrypted but really need the whole drive encrypted. I would really like to do that with out a ...
26
votes
2answers
13k views

How to use https with apt-get?

Does apt-get use https or any kind of encryption? Is there a way to configure it to use it?
16
votes
4answers
12k views

How do I recover my data from an encrypted home directory?

I have a big problem. When I made a upgrade from 10.10 to 11.04 I lost all my data in home directory. I have only data from my home encrypted directory. What can I do? Thanks Martin
14
votes
8answers
12k views

How to create an encrypted partition?

I am trying to create an encrypted partition, and while I format it I get the option to choose the partition type (fat/ext2/ext3/ext4/xfs/reiserfs/minix/ntfs). Is there any benefit of choosing one ...
33
votes
9answers
14k views

How can I encrypt data in Ubuntu One or Dropbox?

I'd love to use Ubuntu One or Dropbox features, like file storage and so on, but I don't want anyone else to access my data, USA Patriot act etc.. I want things to be encrypted so that the only place ...
35
votes
7answers
75k views

Mount encrypted volumes from command line?

If I have an encrypted external disk (or an internal disk that is not in fstab), I see an entry for it in Nautilus -- with an entry like "X GB Encrypted Volume". I can click on this volume, and am ...
51
votes
15answers
27k views

How can I easily encrypt a file?

Is there any simple (IE: right click in Nautilus) way to password protect a particular folder/file in Ubuntu? I've got a few files containing sensitive info and I'd much prefer that if/when I leave my ...
24
votes
5answers
20k views

Swap not working on clean 14.04 install using encrypted home

Update 3: I decided to reinstall the system from scratch to remove any old cruft lying around since I had been experiencing some other issues after the upgrade aswell. Howver, this issue persisted. ...
19
votes
3answers
54k views

Can I disable full-disk encryption?

I recently installed Ubuntu 12.10 and it requires a passphrase to boot up (I installed it with an encrypted file system). Do I have to reinstall to change to a standard unencrypted file system?
17
votes
4answers
21k views

Use (Windows) BitLocker-encrypted drive on Ubuntu 14.04 LTS

How could I mount my BitLocker encrypted drive on Ubuntu? I have checked the Wine website, and it had no BitLocker support, and I have no idea how to install Dislocker on my computer. I can not ...
14
votes
1answer
15k views

How do I setup an encrypted swap file?

When I installed Ubuntu, I setup an encrypted home partition. Now I have come to an issue where I am running out of memory because I haven't setup swap. How can I setup an encrypted swap file? A ...
18
votes
3answers
19k views

Check if partition is encrypted

How do I check if a partition is encrypted? In particular I would like to know how I check if /home and swap is encrypted.
5
votes
3answers
5k views

How to encrypt files using a cross-platform solution?

What programs can be used to encrypt files that could subsequently be decrypted on any OS? For instance, it should then be possible to easily decrypt the encrypted files under Linux, Windows, OS X, ...
103
votes
1answer
5k views

How do I enable Ubuntu (using full disk encryption) to call LUKSsupend before sleeping/suspending to RAM?

This question is related to another one by @Stefan, but it is not a duplicate of it. The questions are slightly different: the author simply wanted to know if this had been implemented, while I'm ...
15
votes
3answers
26k views

How to configure LVM & LUKS to autodecrypt partition?

I have recently installed ubuntu server 11.04 with the full lvm encryption(installed from the setup) . I wish now to use a key file to do automatic unlock. I have tried to follow this guide http://...
25
votes
4answers
15k views

What is the performance overhead of encrypted /home?

I have a netbook with Windows on the second partition and Xubuntu (/ and /home) on the third partition. I selected to encrypt my home folder during installation. The performance of the netbook is ...
8
votes
3answers
3k views

How to encrypt folders (not in Home)? [duplicate]

Is there a way to encrypt a folder, which is not in Home (/home/user/) but even in a different partition, so only my user can access/read contained files? Alternatively, I would like to understand if ...
6
votes
1answer
3k views

Full Disk Encryption with LUKS: auto mount second volume

TrueCrypt on Windows can auto mount volumes that use the same passphrase as the boot volume. You enter the passphrase only once. Is there a way to do this with LUKS? Background: I'm currently ...
20
votes
1answer
41k views

Can you unencrypt / remove encryption from a user home folder? [duplicate]

Possible Duplicate: How to stop using built-in home directory encryption? During installation I have chosen to encrypt my user's home folder. Can I un-encrypt it? How would I do that? I just ...
21
votes
4answers
56k views

Enable disk encryption after installation

I'm running 13.10 Saucy. If I didn't enable disk encryption during installation, is there any way to enable it post facto? I found this, which says that encryption has to happen at install time, ...
18
votes
4answers
38k views

How to change the password of an encrypted LVM system (done with the alternate Installation)?

I installed Ubuntu 11.10 with the alternate CD and encrypted the whole system (except boot) with the encrypted LVM. Everything works great as before, but I would like to change the password of the ...
8
votes
1answer
2k views

How do I encrypt my home partition?

With Ubuntu 9.10 I did not have any encrypted partitions set up, I have since installed a fresh Ubuntu 10.04. I have 3 partitions: OS root (/), home and swap. How do I enable encryption on my ...
17
votes
1answer
6k views

Will changing password re-encrypt my home directory?

I need to change my user password. Do I need to take any extra steps for my encrypted home directory to become inaccessible with my old password and only accessible with my new password?
12
votes
2answers
13k views

How to encrypt external devices?

I've been a Windows power user/administrator and professional tech for years, I just made the decision to go Linux, and wow, what a difference. Is there any decently easy way to encrypt external ...
10
votes
5answers
6k views

How to migrate an encrypted LVM install to a new disk

I have a somewhat customised laptop install I want to move to a SSD directly, without having to reinstall Ubuntu, reinstall all the apps and make all the other changes again. The SSD is smaller, so I ...
10
votes
5answers
10k views

Securely automount encrypted drive at user login

An encrypted /home directory gets mounted automatically for me when I log in. I have a second internal hard drive that I've formatted and encrypted with Disk Utility. I want it to be automatically ...
9
votes
3answers
20k views

How to disable cryptswap?

How can I disable cryptswap? I would like an unencrypted swap like before. This is on an ubuntu 9.10 system.
4
votes
1answer
3k views

Swap encryption and hibernating

I run Ubuntu 12.04 on my laptop, with an encrypted home folder + swap partition. Before I had this encrypted setup, I used to have my hibernation enabled. I found this documentation on how to enable ...
9
votes
3answers
8k views

Encrypted Swap Partition for 14.04

How can I produce an encrypted Swap Partition for 14.04 ? All the advices I saw here are for versions <14.04 and do not work for me. I tried a lot but nothing lasted longer than a reboot. Is there ...
7
votes
5answers
3k views

How do I encrypt files after skipping the option during installation?

I need to encrypt some files on my machine. I did not select the option do encrypt my home folder at installation, but since there was an option to do so I am guessing that Ubuntu has some inbuilt ...
5
votes
1answer
19k views

How to disable encrypted home directory? [duplicate]

Possible Duplicate: How to stop using built-in home directory encryption? i know encrypted home directory is a great security function but i want tot disable it. i am using Acronis True Image ...
62
votes
6answers
9k views

How to secure my laptop so that hacking by physical access is not possible?

I messed up my system earlier, I was greeted with a black screen, when booting in to Ubuntu. When I started up my laptop, I selected the recovery option from the grub menu, and chose fallback at root ...
38
votes
2answers
54k views

Create encrypted (password protected) zip file

How do I create an encrypted (password protected) zip file?
15
votes
3answers
6k views

Reinstall Ubuntu with encrypted home directory?

I have Ubuntu 10.04 installed with encrypted home directory. /home is on a a separate partition. Can I just boot from a 10.10 CD, reformat / and install as usual? Should it work if I use the same ...
14
votes
4answers
16k views

How do I mount an encrypted /home directory on another Ubuntu machine?

I've done something a bit, well, strange. I installed Ubuntu 12.04 directly onto a USB thumb stick, encrypting the /home directory as given the option during the install. The filesystem is btrfs, I ...
16
votes
7answers
15k views

After new Ubuntu 15.04 installation, startup asks for password even though no disk encryption was set up

I installed a brand new SSD into my laptop and did a fresh install of Ubuntu 15.04, with NO system encryption used (only Home directory encryption). However, it still asks me for a password when ...
7
votes
4answers
7k views

How can i move an encrypted home directory to another partition?

How can i move a enrypted home directory to another partition? Are there differences between moving an unencrypted home directory to another partition and an encrypted home directory? Perhaps does ...
7
votes
1answer
4k views

Set encrypted home passphrase

I just reinstalled Ubuntu, Natty. I set to use encrypted home, but once the system was running, I was asked to define the encrypted home passphrase. Out of haste, I skipped that, but now I want to ...
5
votes
4answers
7k views

Swap partition not recognized (The disk drive with UUID=… is not ready yet or not present)

I think I had an encrypted swap partition, because I chose to encrypt my home directory during the installation. I believe that's what the line with /dev/mapper/cryptswap1 ... in my /etc/fstab is all ...
12
votes
2answers
3k views

How can I determine if just the .private folder is encrypted or the whole home directory?

How can i determine if just the .private folder is encrypted or the whole home directory?
8
votes
1answer
9k views

Recovering eCryptfs partition with ecryptfs-recover-private not working

I am trying to reinstall, but I want to backup my encrypted home first, so I booted up from a live CD, mounted the hard drive, ran sudo ecryptfs-recover-private <home directory here> and it ...
5
votes
2answers
2k views

How to truly secure a hard-drive?

When I boot from an USB stick into my laptop I am able to mount and connect through chroot to the my hard drive and browse my files without a problem, while this has been something very very useful in ...