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They Have No Idea How Fun The Water Park Is! (lemmy.ca)

submitted 1 week ago by Sunshine to c/[email protected]

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[–] [email protected] 3 points 1 week ago (2 children)

I do not, ActivityPub uses HTTP signatures to make sure messages and requests from other servers are legit,

Essentially, it adds a "signature" header which contains a link to a users public key, a list of headers in the message and a signed hash of all the headers and the request.

There's a better explaination here: https://docs.joinmastodon.org/spec/security/

A delicated bot to scrape ActivityPub posts is possible, but generic bots shouldn't work. If a delicated bot is made, people can block its keys or server anyway.

[–] jerkface 3 points 1 week ago

Sorry, forgot to whom I was speaking.

[–] [email protected] 3 points 1 week ago (1 children)

Signatures are only used to deliver activities to inboxes. The Activitypub json data of posts is usually available without any auth.

[–] [email protected] 1 points 1 week ago

A lot of servers require signatures on GET requests as well, for private posts and to block specific people/servers.