How to share/send big files safely?

Questions
1

Hello, i want to share big files (over 10gb), but i dont fully trust cloud providers, what would you recommend for max anonimity/privacy/safety, but working? Good if it would work on tor enviorment like tails

2

Syncthing is an option. But there are cloud providers worth trusting should you not have a choice to not use cloud storage service.

3

Is there any free or with free tiral? I seen Mega with 20gb trial, but also many bad opinions about leaking ip or metadata

4

Like I said, you can use Syncthing. It’s P2P, private, secure, and free (FOSS).

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5
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6

thanks, i will check that

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7

Get things from one computer to another, safely.

This package provides a library and a command-line tool named wormhole, which makes it possible to get arbitrary-sized files and directories (or short pieces of text) from one computer to another. The two endpoints are identified by using identical “wormhole codes”: in general, the sending machine generates and displays the code, which must then be typed into the receiving machine.

The codes are short and human-pronounceable, using a phonetically-distinct wordlist. The receiving side offers tab-completion on the codewords, so usually only a few characters must be typed. Wormhole codes are single-use and do not need to be memorized.

Magic Wormhole uses a PAKE (SPAKE2) to derive an end-to-end shared session key from the short human-readable code, so the rendezvous server never learns the code or plaintext; data is then encrypted/authenticated with modern AEAD (e.g., ChaCha20-Poly1305 or AES-GCM depending on implementation) ensuring confidentiality and integrity. Its strengths are true end-to-end encryption, short single-use codes that authenticate the peers when exchanged securely, minimal metadata exposure to the coordinator, and simplicity—making secure one-off file/text transfers practical so long as the code itself isn’t exposed and you run up-to-date software.

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8

oh, chatgpt recommended me this alogside with onionshare, but i never heard of it, so wasnt sure if its good, will def check that out too, thanks

9

I would not rely on AI to tell you what’s best especially in the privacy and security tech space.

Just saying - so it’s a good think you asked here too.

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10

Depends on the recipient tech literacy maybe dumping the file(s) into a VeraCrypt container, upload to whatever cloud service you prefer, give recipient the link and password to mount and decrypt the container could work.

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11

Thanks guys for quick and good answers, so to summarize i can either:

  1. use synthing
  2. use magic wormhole or onionshare
  3. encrypt file and host on cloud
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12

If you focus on privacy, you have to transfer directly files from device A to device B.
If there is an intermediary (cloud) server, you are at risk in term of privacy (meta data, access to file name, content etc…).
To prevent this, you can use icansend.com
The tool will only work if it can connect the 2 devices without any intermediate server (i.e. webRTC without a TURN server).
No limit in term of file size, no cookie, no registration, no installation, no local storage etc…

  • it checks for any corruption during transfer, and doesn’t store the file in browser cache (pure streaming)
1 Like