Nowadays protecting data communications becomes more and more important. The embedded TCP/IP stack of Cinterion® wireless modules supports server and client authentication for Transport Layer Security (TLS) for all services except Listener services.

The concept of TLS for Cinterion® wireless modules is targeted on industrial applications capable of secure communication. The Cinterion® wireless module acts as TLS/SSL client and supports server and optionally client authentication.

The attached slides guide you through the TLS certificate loading process on the PLSx3 module (4G/3G/2G) covering the following items:

• General information certificate management
• What’s necessary
• Certificate loading – unsecure mode
• Management certificate (required for secure mode)
• Certificate loading – secure mode
• Establishing a secure connection