## 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
Mostly combinations of NO_WOLFSSL_CLIENT, NO_WOLFSSL_SERVER and
WOLFSSL_NO_CLIENT_AUTH were failing.
Added configurations to CI loop.
wc_AesGcmDecryptFinal: use WC_AES_BLOCK_SIZE to satisfy compiler.
When wolfSSL_SetVersion() is called to set a specific TLS version,
the downgrade flag is now set to 0. This causes wolfSSL_parse_cipher_list()
to no longer preserve cipher suites from the other TLS version group.
Previously, when using SSLv23 method and setting cipher suites for only
one TLS version (e.g., TLS 1.2), the library would preserve any existing
cipher suites from the other version (e.g., TLS 1.3) for OpenSSL API
compatibility. With this change, if a specific version is set via
wolfSSL_SetVersion(), only the cipher suites for that version are kept.
EVP into test_evp_cipher, test_evp_digest, test_evp_pkey and test_evp.
OBJ into test_ossl_obj.
OpenSSL RAND into test_ossl_rand.
OpenSSL PKCS7 and PKCS12 tests into test_ossl_p7p12.
CertificateManager into test_certman.
Move some BIO tests from api.c into test_evp_bio.c.
Fix line lengths.
... by using the same additional includes as on Linux.
Fixes:
CC tests/api/unit_test-test_rsa.o
tests/api.c:19554:9: error: call to undeclared function 'waitpid'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
19554 | waitpid(pid, &waitstatus, 0);
| ^
Tested on ElectroBSD amd64 14.3-STABLE.
tests/api.c:
* remove inapt SSL_library_init() in test_wolfSSL_EVP_Cipher_extra();
* move TEST_X509_DECLS to follow TEST_DECL(test_wolfSSL_Init);
tests/api/test_random.c: enlarge seed buffer in test_wc_RNG_TestSeed() to accommodate amdrand block size;
tests/quic.c: wrap exercises in wolfSSL_Init()...wolfSSL_Cleanup();
tests/unit.c: in unit_test(), add several more fflush(stdout)s, report error from wolfSSL_Cleanup(), and fix line length;
wolfcrypt/test/test.c: omit reseed test in _rng_test() if HAVE_INTEL_RDRAND or old FIPS, and use simplified random_test() if HAVE_INTEL_RDRAND;
wolfssl/wolfcrypt/mem_track.h: add memList pointer in struct memoryStats, and set it in InitMemoryTracker();
wolfssl/wolfcrypt/settings.h: undefine WOLFSSL_SMALL_STACK_CACHE if WOLFSSL_SMALL_STACK is undefined;
.github/workflows/trackmemory.yml: add --enable-intelrdseed scenario.