this post was submitted on 20 Jul 2024
1627 points (98.7% liked)

linuxmemes

20880 readers
5 users here now

I use Arch btw

Sister communities:

Community rules

  1. Follow the site-wide rules and code of conduct
  2. Be civil
  3. Post Linux-related content
  4. No recent reposts

Please report posts and comments that break these rules!

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
1627
-----BEGIN PRIVATE KEY----- (lemmy.world)
submitted 4 months ago by [email protected] to c/[email protected]
74 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 10 points 4 months ago* (last edited 4 months ago) (2 children)

It's assymetric crypto. You'd need to find a matching public key. Or it's just some useless characters. I suppose that's impossible, or what we call that... Like take a few billion years to compute. But I'm not an expert on RSA.

[–] [email protected] 16 points 4 months ago (1 children)

Public keys are derived from the private key. The asymmetric part is for communication not generation. Afaik

[–] [email protected] 7 points 4 months ago* (last edited 4 months ago) (1 children)

I'm pretty sure the cryptographic parameters to generate a public key are included in the private key file. So while you can generate the other file from that file, it's not only the private part in it but also some extra information and you can't really change the characters in the private key part. Also not an expert here. I'm fairly certain that it can't happen the other way round, or you could impersonate someone and do all kinds of MITM attacks... In this case I've tried it this way, changed characters and openssh-keygen complains and can't generate anything anymore.

[–] [email protected] 3 points 4 months ago

The surprised man in the middle

[–] [email protected] 1 points 4 months ago

Reddit did it in reverse for Tor