this post was submitted on 20 Jan 2025
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Privacy

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If I pair my Android phone and my laptop, I can share files over Bluetooth from the phone to the laptop. I've started finding this a really convenient method for me to send files to a Linux laptop without needing to install a separate app on either the phone or my laptop. Especially when I'm away from my home network (I use SFTP at home).

How secure is this? Is there encryption by default and could someone else nearby with a receiver potentially decode the file you're sending?

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[–] Deckweiss@lemmy.world 2 points 1 week ago (2 children)

What's so bad about servers?

Both are open source.

The signaling server just sees the IPs of your devices.

The turn server sees only locally encrypted files.

[–] llii@discuss.tchncs.de 0 points 1 week ago (1 children)

My concern is has more to do with metadata, wich can be collected. If there's a local alternative or a self-hosted one for something, I'm more inclined to use these than something that depends on a third party.

[–] Deckweiss@lemmy.world 0 points 1 week ago* (last edited 1 week ago) (1 children)

You can selfhost PairDrop though. Including the signaling and turn server. It's open source.

[–] llii@discuss.tchncs.de 1 points 1 week ago

Ok, that's great!

[–] kekmacska@lemmy.zip 0 points 1 week ago (1 children)

I'd rather not upload my files on remote servers. No matter if open source or no

[–] Deckweiss@lemmy.world -1 points 1 week ago (1 children)

The file does not get uploaded to remote servers. It passes through them, fully encrypted, and the server does not have the keys to decrypt your files.

[–] kekmacska@lemmy.zip 1 points 1 week ago (1 children)

If it passes through, that means it is present on the server's storage, even if for a short period of time

[–] Deckweiss@lemmy.world 1 points 1 week ago* (last edited 1 week ago)

All your data and traffic passes through various routers and servers (both of which are computers and have memory) while you do anything on the internet (You can find the list of such computers by doing a traceroute). But because it is end to end encrypted - you don't care.