silcd 1.1.18-1 (amd64 binary) in ubuntu lucid

 SILC (Secure Internet Live Conferencing) is a network protocol designed
 to provide end-to-end security for conferencing services. SILC has a
 command set and a user interface similar to IRC, but the network
 protocol is completely different as it supports public key strong
 cryptography and a different network model.
 .
 This package provides a system daemon that can act as a SILC router or
 server.