Starting with version 4.4.3 LogLogic LMI supports encrypted message routing.

From 4.4.3 to 5.3.0 the Blowfish cipher was used as the encryption algorithm for message routing.

Starting with LMI 5.3.1 SSH is used to provide encryption so depending on the ciphers utilized by SSH will be the algorithm used for encryption. The 5.3.1 Release Notes located on the TIBCO doc site provides details regarding how message routing is affected and how appliances running an LMI version older than 5.3.1 can still interoperate with version 5.3.1 and higher with respect to encryption with message routing.

Note that encryption can only be used when forwarding events from one LMI appliance to another and only when using TCP syslog or LogLogic TCP.