F-1
Appendix F

Secure Communication

Mode

The RMX can be configured to work in Secure Mode by configuring the
RMX and the RMX Web Client to work with SSL/TLS.
In this mode, a SSL/TLS Certificate is installed on the MCU, setting the
MCU Listening Port to secured port 443.
TLS is a cryptographic protocol used to ensure secure communications on
public networks. TLS uses a Certificate purchased from a trusted third
party Certificate Authority to authenticate public keys that are used in
conjunction with private keys to ensure secure communications across the
network.
The RMX supports:
•TLS 1.0
• SSL 3.0 (Secure Socket Layer)
Both TLS 1.0 and SSL 3.0 utilize 1024-bit RSA public key encryption.

Switching to Secure Mode

The following operations are required to switch the RMX to Secure Mode:
• Purchase and Install the SSL/TLS certificate
• Modify the Management Network settings
• Create/Modify the relevant System Flags
Purchasing a Certificate
Once a certificate is purchased and received it is stored in the RMX and
used for all subsequent secured connections.