Is filen.io not secure enough?

Very good. So would you care to tell us what in capacity Filen uses RSA? I cannot help but notice @eudyp omitted to inform this thread.

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This link is literally in the thread above linking to the source code using RSA for encryption.

So tell us what it means.

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What is here to tell other than that it is using RSA for encryption? Not sure what else you need to know.

RSA is not deemed secure enough in the industry. If we need to explain this you should get back to studying cryptography before we can continue this conversation.

RSA is used on this very site… so clearly it isn’t completely obsolete. How does Filen use it?

Uh huh… which is why RSA is post quantum ready, correct? After all, I don’t have to provide a credible source if you don’t.

Did you just tell me to eduskate myself, sh!tlrod! ?

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You may not see it yourself but bu writing this it shows you have no idea what you are talking about.

But for the sake of it:

You could literally just google this shit. Also get again as @dngray using RSA for a TLS certificate is a completely different application of cryptography. Your replies lack any understanding of this. Applications have different requirements and importance.

Your comment about quantum. No RSA is probably not quantum safe. This is a big issue in the industry. Yet again not really trivial for a website like privacy guides. ECDSA will likely be a better alternative although that remains to be seen. If you want to learn more about actual quantum safe you should read on https://openquantumsafe.org/.

And yet you’ve still omitted to tell us how Filen uses it.

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Omg dude. You’re going in mute. If you can’t read the source code that’s your problem. I am not going to explain it. The fact fhat filen uses it for encryption is the issue. You really do not seem to want to hear it. It isn’t important what even is encrypted using it. Appears to be a lot but it is inrrevant. Using RSA for any encryption in this way is just showing incompetence.

FIrstly, what nice, expansive edit more than three minutes after the fact. Perhaps it’s just me but it really says something. As to what I’ll leave it to this thread’s polite audience’s imagination.

Secondly, you again neglect to respond to the query. Let me refresh your memory: how does Filen use RSA?

Thirdly, If you think curves “will likely be a better alternative” then I can only thank you for spotlighting the threshold for what it takes to be a “PRIVACY WIZARD” in

this so-called “community”.
Dilettantes.

(Edit: … and then the PRIVACY WIZARD blocks me. How telling. Maybe he’ll have better luck LARPing on Twitter.)

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@6c85jz248brg68s51glfwz1447os

RSA is sufficient. While extremely small RSA keys should not be used, (anything under 2048bit). RSA 4096bit is still secure enough. The main reason for moving away to EC related curves is because of smaller keysize/speed, not because of quantum resistance (which neither are).

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Exactly. Generally speaking, curves & anything less than RSA-4096 aren’t going to protect against so called ‘harvest now, decrypt later’ … but I presume we’ve all heard of one E. Snowden.

RSA-2048 is still perfectly acceptable if one’s goal is commonplace DPI evasion as a part of a layered strategy. Even the LARPing ‘wizard’ ITT hinted to the metaphorical idiom of ‘the right tool for the job’… in far more crude terms but no matter. That still doesn’t answer the question posed:

In what capacity does FIlen use RSA?

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RSA isn’t used for encryption. They use 256-bit AES for that.

The RSA encryption looks like it’s used for some kind of API request that shows the files the user is downloading. It also looks like it has something to do with shared folders.

I also didn’t see anything about 2048 bit encryption there with it.

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Interesting, isn’t it? At no point has @eudyp stuck his head back ITT to defend his position… & I know you’re seeing the notifications, ‘Penguin’. Meanwhile you & I, Gray, had a pleasant little exchange about the various uses of while everyone™ else falls into a tizzy at the mere mention of RSA.

This really is a fun little site; highly entertaining if I may say so.

You have good intuition: it’s related to the public key exchange before pushing the share’s metadata when sharing strictly between Filen users.

#TiawanNumber1

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ECDSA is arguably better, but I agree that it is likely that neither will proof secure enough against quantum. However, that for what it is worth is all theory.

RSA isn’t used for encryption. They use 256-bit AES for that.

There is indeed no file-encryption using RSA here, from what I see. However, there is also no good excuse to encrypt metadata using it. It just isn’t a good idea. It makes no sense to use RSA here while better options are available.

Secure enough? maybe. Is it a well architectured solution? probably not.

Keep the thread civil, or I will have to moderate Thanks.

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To keep it simple, RSA is also being used by the government as well as the big wig companies. When you store data into something with RSA implemented, you run a risk (a very small risk considering their security) of having the government and these big wig companies looking at your data if RSA complies. While the chances are next to zero considering privacy law, the fact that the chance could be there is considerable enough for most people that store data for privacy