# SECURE RS485 Protocol ## QUESTION: * looking for a secure RS485 Protocol in between embedded devices * 1 Master multiple Slave * device/product lifetime 10years * approx. 0.5 Mbit/s communication ## CURRENT IDEA * TLS like setup, but for MASTER/SLAVE * How to check trust for both parties? * How to keep trust fo it ## this is a poor place to communicate. I suggest something more interactive: ##embedded @ freenode cool place didn't know it. many THX!