Stunnel is available as a plugin for Uniform Server. It can be used to allow SSL connections on your own Uniform Server.
"Stunnel is a program that allows you to encrypt arbitrary TCP connections inside SSL (Secure Sockets Layer) available on both Unix and Windows. Stunnel can allow you to secure non-SSL aware daemons and protocols (like POP, IMAP, LDAP, etc) by having Stunnel provide the encryption, requiring no changes to the daemon's code." (Taken from Stunnel's website)