Questions tagged [encryption]
Questions about encryption such as home folder encryption, partition encryption and file encryption.
2,594
questions
212
votes
9
answers
332k
views
Create encrypted (password protected) zip file
How do I create an encrypted (password protected) zip file?
159
votes
14
answers
481k
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 ...
119
votes
10
answers
73k
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 ...
107
votes
5
answers
89k
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?
104
votes
2
answers
7k
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 ...
101
votes
7
answers
197k
views
How to change the password of an encrypted LVM system (previously alternate Installation, now advanced feature)?
I installed Ubuntu 11.10 with the alternate CD and encrypted the whole system (except boot) with the encrypted LVM. Update 2020: Encrypted LVM can be selected at the Installation type step of the ...
99
votes
8
answers
179k
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 / ...
98
votes
6
answers
283k
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, ...
96
votes
7
answers
267k
views
How do I quickly encrypt a file with AES?
I want to encrypt a file using AES-256. How can I do that quickly and easily, and how can I - or someone else -decrypt it again?
84
votes
5
answers
120k
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?
73
votes
7
answers
14k
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 ...
69
votes
7
answers
74k
views
Is there a tool to encrypt a file or directory?
What's the most popular way to encrypt individual files or folders?
67
votes
4
answers
60k
views
How to Encrypt /home on Ubuntu 18.04?
Disappointed to see that the 18.04 installer no longer offers the option to encrypt the home directory. According to this bug report referenced in the installer, the recommended method for encryption ...
63
votes
15
answers
42k
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 ...
62
votes
6
answers
59k
views
Is there a tool that can add a password to a PDF file?
I've found lots of info on decrypting PDF files, but none on encrypting them. What tool can do this for me?
Edit: There are two good answers below, but in my specific case the PDF was a scan, not a ...