## Summary
- Add non-blocking (incremental) Curve25519 key generation and shared secret via `WC_X25519_NONBLOCK`, modeled after the existing ECC non-blocking pattern (`WC_ECC_NONBLOCK`)
- Implement `curve25519_nb()` and `fe_inv__distinct_nb()` in `fe_low_mem.c` as state-machine variants that return `FP_WOULDBLOCK` to yield after each field multiply
- Add `wc_curve25519_set_nonblock()` API to attach/detach non-blocking context to a key
- Integrate X25519 non-blocking with TLS 1.2/1.3 key share generation and shared secret in `tls.c` and `internal.c` (behind `WC_X25519_NONBLOCK && WOLFSSL_ASYNC_CRYPT_SW`)
- Add `--enable-curve25519=nonblock` configure option (auto-enables `--enable-asynccrypt` and `--enable-asynccrypt-sw`)
- Add X25519 async software dispatch cases in `async.c` and types in `async.h`
- Fix async guard in `curve25519.c` to require `WOLFSSL_ASYNC_CRYPT_SW` (matching other algorithms)
- Overhaul `examples/async/` client/server: non-blocking I/O via `WOLFSSL_USER_IO`, standalone `Makefile`, X25519/ECC mode selection, CI-friendly ready-file sync
- Add `examples/configs/user_settings_curve25519nonblock.h` and CI coverage in `os-check.yml` and new `async-examples.yml` workflow
- Add wolfcrypt test and API test coverage for X25519 non-blocking
if ENABLED_LINUXKM_PIE, add -DWOLFSSL_NO_OCSP_ISSUER_CHECK to gate out backward dependency in asn.c;
if ENABLE_LINUXKM, don't error on FIPS without thread_ls_on;
for --enable-curl, set ENABLED_MD4="yes", and move --enable-md4 AC_ARG_ENABLE() clause up to a position adjacent to des3 handling;
scripts/sniffer-gen.sh: fix illegal exit code (SC2242);
src/internal.c: fix clang-analyzer-core.NonNullParamChecker in CreateTicket();
src/ocsp.c: fix readability-redundant-preprocessor;
src/tls.c: fix empty-body in TLSX_PskKeModes_Parse() and clang-diagnostic-unreachable-code-break in ALPN_Select();
tests/api.c: fix several clang-analyzer-core.NullDereference related to Expect*() refactor;
wolfcrypt/src/asn.c:
fix -Wconversions in DecodeAuthKeyId() and ParseCertRelative();
fix readability-redundant-declaration re GetCA() and GetCAByName();
gate inclusion of wolfssl/internal.h on !defined(WOLFCRYPT_ONLY);
wolfssl/internal.h: add macro-detection gating around GetCA() and GetCAByName() prototypes matching gates in wolfcrypt/src/asn.c;
tests/utils.c: in create_tmp_dir(), use one-arg variant of mkdir() if defined(__CYGWIN__) || defined(__MINGW32__).
- move the testsuite file helps into a new tests/utils.c file so that they can be used across all tests
- dump the raw TLS stream when WOLFSSL_DUMP_MEMIO_STREAM is defined so that it can be examined in Wireshark
David Garske
Sean Parkinson
Marco Oliverio
Juliusz Sosinowicz
Kareem
JacobBarthelmeh
Daniel Pouzzner