Offline Customization And Identification Protocol (OCAIP)
Allows connections to a server even when auth servers are unreachable.
The goal is to just to add a bit of auth to offline-mode, while allowing normal online connections.
Download
1.20.2 - 1.20.4 - 1.3.5
1.20 - 1.20.1 - 1.3.2
1.19.3 - 1.19.4 - 1.3.1
1.19.2 - 1.2.5
1.18.2 - 1.2.5-1.18.2
Features:
-
Offline logins can be restricted by a registration password
-
Offline logins can be restricted by a registration proof of work
How it works (in a nutshell):
- Client creates a private key (this is kindof like a password but more secure)
- Client connects to server
- If the client hasn't connected before the server will prompt a registration password/proof of work
- The server will remember the public key and later logins will be seamless
Q&A:
-
Where's the private key stored?
The private key is stored in
.minecraft/ocaip.key
keeping a backup of the key is recommemded as losing it means
you won't be able to access that account and will have to contact an admin or create a new one. -
How to reset user's account if they lost their public key (server sided)?
Server hosts public keys are located in
ocaip/server_keys. If a user lost their original public key you can reset the account by removing their name and the key underneath the name -
My skin is the default one, can I change that?
To have a skin, place your 64x64 pixel skin file into
.minecraft/ocaip_skin.png.
OCAIP: because the acronym kindof sounds like "Oh, Cape" (due to the migrator cape).