Lemmy

2172 readers

21 users here now

Everything about Lemmy; bugs, gripes, praises, and advocacy.

For discussion about the lemmy.ml instance, go to [email protected].

founded 4 years ago

MODERATORS

[email protected]

171

Interesting difference from Reddit: Upvotes/Downvotes are not anonymous (programming.dev)

submitted 1 year ago by [email protected] to c/[email protected]

114 comments fedilink hide all child comments

Hey folks! Just realized something that makes Lemmy different from Reddit. Because of the federation, your votes are not technically anonymous on Lemmy. At least, I think.

Although there’s no UI to look at a user’s voting history yet, one could conceivably be built by an instance. Perhaps coincidentally, I hear there’s instances out there populated by mostly bots?

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

[–] [email protected] 2 points 1 year ago

No, hashing passwords is a different case because you know what the user is so you can use a unique salt. The password itself is also high entropy. For this use cause you can have at best per-post salt.

Think about it. The task that you are asking for is to quickly check if a user has voted for a post to prevent duplicates. So literally the operation you want is the same as you are trying to prevent. If you can enumerate users then you an by definition check if they have voted for a post.