[mbed-tls] TLS Only for Data Authentication

Hi,

I am developing TLS client and server for embedded systems. Considering the operational efficiency, it is sufficient to have data authentication. Is it possible to setup a TLS communication with data authentication and without encryption?

Consider a PLC network,

1. Within physical secure zone. 2. Requires faster data transfer. 3. Data are not confidential, but must be cryptographically authenticated.

Thanks, Gopi Krishnan