Project Structure

Top-level layout

Path	Purpose
`src/`	Core protocol, crypto glue, transcript, secured messaging, and session logic
`wolfspdm/`	Public headers (`spdm.h`, `spdm_types.h`, `spdm_error.h`)
`examples/`	Demo client and emulator integration script
`test/`	Unit tests and emulator smoke test
`docs/`	Project documentation (including attestation notes)
`.github/workflows/`	CI workflows

File	Responsibility
`src/spdm_context.c`	Context init/free lifecycle and state setup
`src/spdm_msg.c`	SPDM message construction and parsing
`src/spdm_crypto.c`	Cryptographic helper operations
`src/spdm_kdf.c`	HKDF-based key derivation
`src/spdm_transcript.c`	Transcript management (TH computations)
`src/spdm_secured.c`	Secured message protection (AES-256-GCM)
`src/spdm_session.c`	Handshake/session flow and higher-level operations
`src/spdm_internal.h`	Internal types, constants, and internal APIs

Header	Content
`wolfspdm/spdm.h`	Main public API and feature macros
`wolfspdm/spdm_types.h`	SPDM protocol constants and algorithm identifiers
`wolfspdm/spdm_error.h`	Error code enum and error-string helper

File	Purpose
`configure.ac`	Autotools configure logic and options
`Makefile.am`	Library, test, and example build targets
`examples/spdm_demo.c`	CLI demo for session/measurement/challenge/heartbeat/key update
`examples/spdm_test.sh`	18-case emulator integration driver
`test/unit_test.c`	Unit test coverage
`test/test_spdm.c`	SPDM smoke-test utility