I want to use VeraCrypt for long-term cloud backups (Proton/Google Drive) by uploading the single container file directly through Firefox. I have no desktop sync apps installed.
I’m anxious about this because a past attempt with Cryptomator failed. I had uploaded everything on Google Drive (copy + paste, using Firefox) and reset my PC, only to spend hours failing to recover my data.
If I download this single VeraCrypt file from a browser onto a different PC years from now, will it decrypt perfectly with just the password? It worked when I tested it in a VM, but I need absolute certainty before relying on it.
I think for your use-case age, GnuPG (symmetric encryption mode), Kryptor, Picrocrypt or Picrocrypt-NG would be a better way of doing it as it seems that your goal is just do encrypt your files before uploading them. These tools do exactly that, and VeraCrypt is not made for that.
I haven’t had issues using VeraCrypt + Proton Drive and don’t see why there’d be an issue in the future. I agree with @SYST3M_D3STR0YER that Picocrypt-NG could be another good option since it’s a simpler program, but it’s not yet recommended by PrivacyGuides because the new developer(s) have to build its reputation from scratch.
