🔐 OfflineEncryptor

Please see github page for further information.

Compatibility & Installation

Supported Versions

Paper / Purpur / Leaves / Leaf / other Paper-downstream

Version: 1.20.5+
Install if not using proxy like Velocity.
Running it on older versions will fail because encryption logic changed in 1.20.5.

Velocity Proxy

Version: 3.4.0+
Install the plugin only on Velocity if Velocity is present.
Do NOT install it on the backend server when using Velocity, otherwise players will be unable to join.

Unsupported Server Types

Client Requirements

Minecraft client 1.20.5 or newer: Mojang changed the handshake and encryption flow in 1.20.5; older clients cannot complete the encryption sequence. This plugin will not send encrypted request packet to players with older versions.

ViaVersion Compatibility

The plugin is fully compatible with the entire Via series:

ViaVersion can down-translate gameplay packets, but encryption still requires the real client version to be 1.20.5+.

Netty pipeline after installed this plugin with ViaVersion.