menu "Example CoAP Server Configuration" config EXAMPLE_COAP_PSK_KEY string "Preshared Key (PSK) to used in the connection from the CoAP client" depends on COAP_MBEDTLS_PSK default "secret-key" help The Preshared Key to use to encrypt the communicatons. The same key must be used at both ends of the CoAP connection, and the CoaP client must request an URI prefixed with coaps:// instead of coap:// for DTLS to be used. endmenu