Not sure is this is the best place to post this question, but wondering what is the best way to encrypt a usb drive?

Want to be able to carry an encrypted flash drive with me but also be able to unlock it, if possible, on various OSes. Preferably with some kind of portable software. Something similar to the method that comes with the Kingston Data Traveler USB drives.

Edit: Seems like Veracrypt and Cryptomator are the best options to check out. Thank everyone!

50 points

Veracrypt. Make a file on your disk.

Don’t want a storage file?

Make 2 partitions, put veracrypt portable exe on the first normal storage partition. (fat32 is likely ideal here) Second partition formatted with veracrypt.

permalink
report
reply
10 points
*

This, except consider exFAT. It’s more modern than FAT32 but also widely compatible.

https://www.howtogeek.com/235596/whats-the-difference-between-fat32-exfat-and-ntfs/

permalink
report
parent
reply
7 points

I would not just default to exfat because it is “newer,” it does have compatibility issues on non-windows systems. The implementations differ wildly.

permalink
report
parent
reply
2 points

Back when I used Windows, it worked fine for me out of the box between Win7 and both Ubuntu-based and Arch-based Linux distros 🤷

permalink
report
parent
reply
1 point

I have had major issues with exFAT across a variety of platforms. But I also work with a bunch of niche gear. But my point is simply that being widely compatible isn’t the same as being fully compatible. And OP was asking for the best way to reach the widest compatibility. That calls for FAT32, even if it has issues with things like file size.

permalink
report
parent
reply
6 points

+1 for veracrypt. Very convenient.

permalink
report
parent
reply
2 points

I make 1 single partition for the entire drive and encrypt it with veracrypt. Veracrypt has portable executables for windows and if I lose the flash drive in the worst case people will think it’s a corrupted disk (unrecognized partition) and reformat them probably.

permalink
report
parent
reply
1 point

This was my immediate thought as well. Portable launchers for the various OS’es on a tiny (just large enough to store the launchers) FAT32 partition, then a large FAT32 partition (the majority of the drive) encrypted by VeraCrypt. As long as it can read FAT32 and run VeraCrypt, it’ll be compatible. And that covers Windows, Linux, Raspberry Pi, and Mac ecosystems. It’s not as simple as just plugging it in and getting a password prompt, but it’s going to be the most compatible while still allowing for (nearly) the entire drive to be encrypted.

permalink
report
parent
reply
1 point

👏👏

permalink
report
parent
reply
9 points

Cryptomator might be a good option. They have clients for Windows, macOS, and Linux. It’s designed around encrypting your cloud storage but nothing should stop you from using it on a USB drive.

permalink
report
reply
6 points

That what I use, the key itself is formatted using ExFAT for compatibility with all major OSes, and using Cryptomator to encrypt the files.

permalink
report
parent
reply
6 points
*

Yup Veracrypt is great even has a portable version that can be kept on the drive (might still need admin privileges though) so you won’t have to install it on the system iirc . Would also go with cryptomator if you plan on using it with mobile systems but it has a one time payment for mobile.

permalink
report
reply

I’ve used Veracrypt when I’ve needed something portable with windows and linux. Been a few years so might be better options now.

permalink
report
reply
4 points

Probably far from the best option; but you could use 7zip? Put a 7zip portable exe & linux binary on the usb, put the regular contents in an encrypted .zip file, anyone with the password can decrypt. I assume there are much more secure options though.

permalink
report
reply
3 points

7zip encryption is solid, but the problem with this is that you don’t Mount 7zip, so you have to extract it. Once you extract encrypted files into a drive thats not encrypted, they may as well never have been encrypted in the first place.

Its better to use a tool that creates an encrypted filesystem that you can mount and read-write directly without copying the files onto another disk

permalink
report
parent
reply
2 points

Encrypted ZIPs are very trivial to break. I can break it with a simple python script.

For instance, Microsoft does that for all encrypted ZIPs

https://arstechnica.com/information-technology/2023/05/microsoft-is-scanning-the-inside-of-password-protected-zip-files-for-malware/

permalink
report
parent
reply
1 point
*

ZIP isn’t a good way to encrypt, but what Microsoft is doing is simply reading the email, and decrypting zips with the password found in the email body.

All encryptions schemes can be trivially broken if you have the key. It’s not even breaking, it’s just normal decryption.

permalink
report
parent
reply
2 points

No, zip encryption is very weak. Thus is because million of combinations can be tried very quickly

permalink
report
parent
reply

Privacy

!privacy@lemmy.ml

Create post

A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

Some Rules

  • Posting a link to a website containing tracking isn’t great, if contents of the website are behind a paywall maybe copy them into the post
  • Don’t promote proprietary software
  • Try to keep things on topic
  • If you have a question, please try searching for previous discussions, maybe it has already been answered
  • Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
  • Be nice :)

Related communities

Chat rooms

much thanks to @gary_host_laptop for the logo design :)

Community stats

  • 7.4K

    Monthly active users

  • 2.8K

    Posts

  • 75K

    Comments