Protocol integration

CoAP over STCP

A compact secure transport path for constrained resource access, device APIs and low-overhead request/response traffic.

Constrained devicesRequest/responseUDP carrierTCP carrier

CoAP integration goals

Low overhead

Preserve CoAP's compact messaging while adding a reusable encrypted session layer.

Reliable options

Use STCP's carrier and reliability model where the deployment needs stronger ordering or retransmission behavior.

Shared implementation

Keep cryptography and protocol state in the same common Rust core used by MQTT and raw socket applications.

Planned CoAP measurements

Request latency

GET/POST round-trip performance across payload sizes and carriers.

Packet loss

Behavior under controlled loss, duplication and reordering.

Embedded footprint

Memory, CPU and power measurements on Zephyr targets.

Status: this page is a ready content scaffold. Architecture diagrams and measured results can be added as the CoAP implementation matures.