I was recently intrigued to learn that only half of the respondents to a survey said that they used disk encryption. Android, iOS, macOS, and Windows have been increasingly using encryption by default. On the other hand, while most Linux installers I’ve encountered include the option to encrypt, it is not selected by default.
Whether it’s a test bench, beater laptop, NAS, or daily driver, I encrypt for peace of mind. Whatever I end up doing on my machines, I can be pretty confident my data won’t end up in the wrong hands if the drive is stolen or lost and can be erased by simply overwriting the LUKS header. Recovering from an unbootable state or copying files out from an encrypted boot drive only takes a couple more commands compared to an unencrypted setup.
But that’s just me and I’m curious to hear what other reasons to encrypt or not to encrypt are out there.
I don’t encrypt because it’s too much effort to learn about it.
Id rather keep my filesystem unencrypted so that I can easily recover from problems and encrypt important files as needed, but let’s be real I don’t do that either.
Depends on the use case. Definitely for my laptop though. In fact the decryption keys only exist in two places:
- Inside my TPM
- In a safe deposit box at a bank.
I used to, but not anymore, except for my laptop I plan on taking with me travelling. My work laptop and personal laptop are both encrypted.
I figure my home is safe enough, and I only really need encryption if I’m going to be travelling.
One of my friends locked himself out of his PC and all his data because he forgot his master password, and I don’t want to do that myself lol
Exactly the same rationale as mine.
Yep. Everything except my server, which needs to be able to boot without my help. Because why not? I rarely ever reboot anything, so it doesn’t really hurt, and if anyone steals my shit they won’t get my wife’s noods.
I do encrypt my drives, and it’s not as transparent in Linux as it is in the others. I’m sure I could get a TPM setup for seamless boots, but I haven’t done that yet.
For mobile drivers, I still encrypt, but that locks them to one OS since LUKS isn’t cross platform. There is VeraCrypt for cross-platform encryption, but that’s one more thing to manage and install.
I do on all my devices that can as a matter of practice, not for any real threat. I’m interested to learn about how to set it up and use it on a daily basis including how to do system recoveries. I guess it’s largely academic.
Once I switched to linux as my daily driver, I didn’t have a need to do piracy anymore since all the software I need is FOSS.
No, I don’t encrypt. I am a grown ass man and I rarely take my laptop out of my home. I don’t have any sensitive data on my various machines. I do use secure and encrypted cloud services to store things that I consider a security risk. Everything else is useless to a potential intruder.
Most mobile/laptop devices should be encrypted by default. They are too prone to loss or theft. Even that isn’t sufficient with border crossings where you are probably better off wiping them or leaving them behind.
My desktop has no valuable data like crypto, sits in a locked and occupied house in a small rural community with relatively low crime (public healthcare, social security, aging population). I have no personal experience of property theft in over half a decade.
I encrypt secrets with a hardware key. They are only accessed as needed. This is a much more appropriate solution than whole disk encryptiom for my circumstances. Encrypting Linux packages and steam libraries doesn’t offer any practical benefit and unlocking my filesystem at login would not protect from network exfiltration which is a more realistic risk. It adds overhead.and another point of failure for no real benefit.
I wanted to but everyone on Lemmy told me I was an idiot for wanting a feature Mac and Windows have had for a decade (decrypt on login) .
But seriously it’s just not there on Linux yet. Either you encrypt and have two passwords, or give up convenience features like biometrics. Anything sensitive lives somewhere else.
You’re an idiot, go back to macOS you fucking normie
(/s, I’m also waiting for TPM encryption + user home encryption)
Clevis pretty much does TPM encryption and is in most distros’ repos. I use it on my Thinkpad. It would be nice if it had a GUI to set it up; more distros should have this as a default option.
You do have to have an unencrypted boot partition, but the issues with this can at least in be mitigated with PCR registers, which I need to set up.
How hard is clevis to setup?
I’ve seen it referenced for encrypted servers, but I haven’t tried setting it up.
Unencrypted boot is unfortunate. What are PCR registers?
(Note: Anything I say could be B.S. I could be completely misunderstanding this.)
Clevis isn’t too difficult to set up - Arch Wiki documents the process really well. I’ve found it works better with dracut that mkinitcpio.
As for PCR registers (which I haven’t set up yet but should), what I can tell, it sets the hash of the boot partition and UEFI settings in the TPM PCR register so it can check for tampering on the unencrypted boot partition and refuse to give the decryption keys if it does. That way, someone can’t doctor your boot partition and say, put the keys on a flash drive - I think they’d have to totally lobotomize your machine’s hardware to do it, which only someone who has both stolen your device and has the means/budget to do that would do.
You do need to make sure these registers are updated every kernel update, or else you’ll have to manually enter the LUKS password the next boot and update it then. I’m wondering if there’s a hook I can set up where every time the boot partition is updated, it updates PCR registers.
Yes. I have sensitive info in my PC (work credentials) and in the case of a break-in, last thing I want is to jeopardize my job.
Honestly… Why bother? If someone gains remote access to my system, an encrypted disk won’t help. It’s just a physical access preventer afaik, and I think the risk of that being necessary is very low. Encrypted my work computer because we had to and that environment also made it make more sense, I technically had sensitive customer info on it, though I worked at Oracle so of course they had to make it as convoluted and shitty as possible.
Can you explain why if someone get access to your encrypted disk, they would have access to its contents?
If someone can execute arbitrary code on my computer, it doesn’t matter that the disk is encrypted, because I’ve already booted the machine up and entered the key. I’m certainly not the most cryptographically knowledge but using LUKS on Oracle Linux, I’d enter the key once while starting up, past that point there was no difference between an encrypted and unencrypted system. It seems logical to me, then, that if something can execute arbitrary code, it’s after that point, so encryption won’t matter to it. Encryption is more of a solution to someone physically obtaining your hard drive and preventing them from having access to the contents simply by plugging it into their system.
Or at least that’s my understanding, please correct me if I’m mistaken.
You’re somewhat right in the sense that the point of disk encryption is not to protect from remote attackers. However, physical access is a bigger problem in some cases (mostly laptops). I don’t do it on my desktop because I neither want to reinstall nor do I think someone who randomly breaks in is going to put in the effort to lug it away to their vehicle.
Certainly didn’t mean to say it’s never useful, just not useful for me
Asahi Linux doesn’t support encryption and getting it to work requires a lot of steps and that I reinstall it which I don’t have time for, so I don’t have it enabled on my laptop, and if it gets stolen or confiscated I’m fucked.
I have it enabled on my server and phone.
@sudoer777 @monovergent , create an encrypted container? It’s a little tedious, but fairly distro agnostic.
Edit: Definitely throw together scripts to simplify the process of unlocking and mounting.
I don’t encrypt my entire drive, but I do have encrypted directories for my sensitive data. If I did encrypt an entire drive, it would only be the drive containing my data not the system drive.
but I do have encrypted directories for my sensitive data
What do you use for encrypted directories? Ecryptfs?
My drives are not encrypted because it’s a hassle if things start going wrong. My NAS is software raid so the individual disks mean nothing anyway. The only drive that is encrypted is my backup disk and I’m not really sure if it was needed.
No.
I spend a significant amount of time on other things, e.g. NOT using BigTech, no Facebook, Insta, Google, etc where I would “volunteer” private information for a discount. I do lock the physical door of my house (most of the time, not always) and have a password … but if somebody is eager and skilled enough to break in my home to get my disks, honestly they “deserve” the content.
It’s a bit like if somebody where to break in and stole my stuff at home, my gadgets or jewelry. Of course I do not welcome it, nor help with it hence the lock on the front door or closed windows, but at some point I also don’t have cameras, alarms, etc. Honestly I don’t think I have enough stuff worth risking breaking in for, both physical and digital. The “stuff” I mostly cherish is relationship with people, skills I learned, arguably stuff I built through those skills … but even that can be built again. So in truth I don’t care much.
I’d argue security is always a compromise, a trade of between convenience and access. Once you have few things in place, e.g. password, 2nd step auth, physical token e.g. YubiKeyBio, the rest becomes marginally “safer” for significant more hassle.
but if somebody is eager and skilled enough to break in my home to get my disks, honestly they “deserve” the content.
The problem with “my disks” is there’s always some other’s people on it, in one way or another.
But of course, it’s your call. We all have gaps in our “walls” and it’s not like I’d be pretending that LUKS is all that matters.
