Transport layer of IoT can be secured by VPN implemented in the MCU. The VPN-on-Chip can be very useful for various IoT devices including CCTV and IP camera.
Hardware VPN Client Solution
Axio-VPN is a compact single channel hardware VPN client unit for IoT devices. Instantaneous installation and configuration can be done by inserting the unit in-line using the UTP cable between the IoT device and internet to provide secure tunnel with encryption as it is powered on without software VPN client.
STM32F437 (168MHz, SRAM 256KB, Flash 2MB)
AES Accelerator, True Random Number Generator (TRNG),
Trusted Platform Module (TPM) 2.0
2 x 10/100Mbps Base-T
IN: Eth in STM32F437, OUT: USB 2.0 (CDC-Ethernet)
UART (Management), BLE (option)
IEEE802.3at ( > 40W, 200mA)