MAX_ENCODED_SIG_SZ grows to ~50KB once SLH-DSA is enabled, yet it was
used to size PKCS#1/signature scratch and output buffers across the
library, wasting stack and heap even for classic RSA/ECC operations.
- Add MAX_ENCODED_CLASSIC_SIG_SZ for RSA/DSA/ECC DigestInfo buffers that
can never hold a PQC signature.
- Size the certificate/CSR signing output buffer from the signing key at
runtime instead of the worst-case macro.
- Add overridable WOLFSSL_MAX_SIG_SZ for the WOLFSSL_NO_MALLOC buffer.
- Reject a signature type that does not match the signing key.
Extend wc_MakeCert_ex/wc_SignCert_ex/wc_MakeCertReq_ex to issue HSS/LMS and
XMSS/XMSS^MT certificates and PKCS#10 requests, building on the existing
RFC 9802 verification support. New LMS_TYPE/XMSS_TYPE/XMSSMT_TYPE selectors,
wc_{Lms,Xmss}Key_PublicKeyToDer SPKI encoders, runtime signature-buffer
sizing, and sigType/key consistency checks. Generation is ASN.1-template
only, matching where the verification path lives.
Tests generate self-signed roots, CSRs and a CA->ECC-leaf chain in-process
and verify them, replacing the patched Bouncy Castle fixtures (only the stock
RFC 9802-aligned LMS interop anchor is kept).
uclient-fetch intermittently returns 4 ("connection reset prematurely") instead of 5: with ML-KEM enabled by default the larger ClientHello is sometimes reset by the server before the cert is evaluated. Accept either on all four negative tests as a band-aid.
wolfcrypt/src/wc_port.c: fix several missed refactors to WC_ATOMIC_[U]INT_ARG.
wolfssl/wolfcrypt/wc_port.h:
* harmonize the return type of WOLFSSL_ATOMIC_STORE() (always void).
* fix MSVC WOLFSSL_ATOMIC_LOAD() and _STORE() with correct atomic semantics, and add gating on USE_WINDOWS_API.
Extend test_tls13_apis with negative-count assertions for
wolfSSL_CTX_set_groups and wolfSSL_set_groups, and NULL-groups
assertions for wolfSSL_CTX_set1_groups and wolfSSL_set1_groups
(tests/api/test_tls13.c).
Add test_wolfSSL_get_shared_ciphers covering NULL ssl, NULL buf, and
zero-length inputs (tests/api/test_tls.c).
Add count < 0 validation to wolfSSL_CTX_set_groups and wolfSSL_set_groups
(src/tls.c) to prevent negative count from bypassing the upper-bound check
and corrupting numGroups via byte truncation.
Widen count == 0 to count <= 0 and add NULL groups check in
wolfSSL_CTX_set1_groups and wolfSSL_set1_groups (src/ssl.c).
Add NULL buf and NULL cipher checks in wolfSSL_get_shared_ciphers to
prevent NULL pointer dereference.
David Garske
Daniel Pouzzner
Tobias Frauenschläger
jordan
Sean Parkinson
Hideki Miyazaki
Eric Blankenhorn
Colton Willey
Kareem