Privacy

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How private and secure is Backblaze B2? (lemmy.dbzer0.com)

submitted 7 months ago by chillbruh@lemmy.dbzer0.com to c/privacy@lemmy.ml

28 comments fedilink hide all child comments

I'm looking into getting an extra backup solution for my laptop, and a backup solution for my NAS/media server. Currently, my laptop backs up to my local NAS, and Proton Drive, while my server has no additional backup.

Is using something like Backblaze B2 actually private and secure, especially if I use the personal encryption key I can set? Or is there another online service that may be better and more private?

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[–] MigratingtoLemmy@lemmy.world 25 points 7 months ago (2 children)

I asked a very similar question earlier and the consensus is to encrypt before you upload. That way you care more about reliability than privacy

[–] delirious_owl@discuss.online 12 points 7 months ago (1 children)

Make sure you test an actual restore. A backup that cannot be restored is useless.

[–] MigratingtoLemmy@lemmy.world 1 points 7 months ago

Absolutely. But this will likely just be media

[–] sugar_in_your_tea@sh.itjust.works 6 points 7 months ago (2 children)

And make sure your encryption keys are stored securely. You don't want a house fire or something to destroy your keys and your data.

[–] MigratingtoLemmy@lemmy.world 1 points 7 months ago (2 children)

Multiple pen-drives with encrypted storage holding keys; how does that sound? Good idea?

[–] sugar_in_your_tea@sh.itjust.works 1 points 7 months ago

As long as they're physically separated so you don't get screwed if there's a fire or something. And if you're DIY-ing, use multiple separate places (friends houses, work, etc).

[–] Atemu@lemmy.ml 1 points 7 months ago

Flash loses memory over many years. I'd use like 3 different mediums and always keep a hash of the key with the key.

[–] Molecular0079@lemmy.world 1 points 7 months ago (1 children)

What are good places to store your encryption keys? I am trying to find solutions that aren't just store a piece of paper in some security deposit box.

[–] sugar_in_your_tea@sh.itjust.works 0 points 7 months ago (1 children)

Some options:

encrypted file stored on a free tier data storage (many are free for the first year)
Tarsnap - dedups so storage is cheap; for keys, this would be pennies per month

[–] Molecular0079@lemmy.world 1 points 7 months ago (1 children)

encrypted file stored on a free tier data storage (many are free for the first year)

I am confused, aren't you just pushing the problem further up the chain? Now you need to worry about storing the key that decrypts the file storing the key you wanted to protect in the first place.

Same goes with tarsnap, now you need to worry about where to store the tarsnap keys.

[–] sugar_in_your_tea@sh.itjust.works 2 points 7 months ago

You'd use a password to encrypt the keys and/or store that key in your password manager.