Privacy

32142 readers

719 users here now

A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

Some Rules

Posting a link to a website containing tracking isn't great, if contents of the website are behind a paywall maybe copy them into the post
Don't promote proprietary software
Try to keep things on topic
If you have a question, please try searching for previous discussions, maybe it has already been answered
Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
Be nice :)

Related communities

much thanks to @gary_host_laptop for the logo design :)

founded 5 years ago

MODERATORS

the encryption keys, why can't the government just sneak on them? (lemmy.dbzer0.com)

submitted 10 months ago* (last edited 10 months ago) by zaknenou@lemmy.dbzer0.com to c/privacy@lemmy.ml

34 comments fedilink hide all child comments

disclaimer: I'm just asking to get understanding of the theory behind network traffic encryption, I know this doesn't happen irl most likely.

Let's take https connection for example. I like watching revolutionary things on youtube and do not wish for authorities to know what I am watching, we accept here for the sake of showcase that google won't sell my watch history if asked (LMAO what am I even saying?).
So if I'm not mistaken since youtube has https implemented, our communication is encrypted, the keys are shared only between me and youtube. But when Youtube shares the key with me/my client the first time, is that also encrypted? Wouldn't the same question keep getting answered until there is something unencrypted? I know this is a bit too much unlikely, but if ISP automated the process of gathering keys and decrypting web traffic for a certain site with them for all users, would that work for them?
I'm taking https here as an example, while I have the same question for like VPN.

EDIT: Thank you everybody. I am not a member of this community, but every comment was a golden experience to read!

you are viewing a single comment's thread
view the rest of the comments

[–] zaknenou@lemmy.dbzer0.com 3 points 10 months ago (2 children)

so you can encrypt a message with my public key but you cannot decrypt it afterward ??

[–] deluxeparrot@thelemmy.club 4 points 10 months ago* (last edited 10 months ago)

The best way I find to think about it is a padlocked box.

The public key is a box with an open padlock on it. I can give it to anyone. If someone puts a message inside the box they can lock the padlock, but they don't have the key to open it again.

I keep the key private. If someone sends me a locked box that has my padlock on it, only I have the key to open it and read the message.

[–] Darkassassin07@lemmy.ca 3 points 10 months ago

Exactly. Once encrypted with your public key, you're the only one who can decrypt and read it as you are the only one with access to your private key.