Fix alert type for missing cert. Prevent building with RNG disabled and blinding enabled by default. Enforce bounds for AES CMAC size in verify.#10462
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kareem-wolfssl wants to merge 6 commits into
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Pull request overview
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This PR hardens cryptographic configuration and CMAC verification behavior, and corrects a TLS 1.3 alert for missing client certificates.
Changes:
- Prevent builds that combine
WC_NO_RNGwith blinding options (unless explicitly acknowledged). - Enforce AES-CMAC tag length bounds in verify APIs and return
MAC_CMP_FAILED_Eon mismatch. - Send TLS 1.3
certificate_requiredalert when the client can’t provide a required certificate; update docs/tests accordingly.
Reviewed changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
wolfssl/wolfcrypt/settings.h |
Avoid enabling Curve25519 blinding when RNG is disabled; add build-time error for blinding+no-RNG configurations. |
wolfcrypt/src/cmac.c |
Enforce CMAC tag-size bounds; prevent callback-driven size tampering; return consistent mismatch error. |
tests/api/test_cmac.c |
Add coverage for CMAC verify bounds, truncation behavior, and mismatch return code. |
src/tls13.c |
Fix TLS 1.3 alert to certificate_required for missing client certificate. |
doc/formats/html/doxygen_warnings |
Adds a doxygen warnings output file. |
doc/dox_comments/header_files/cmac.h |
Update doxygen docs for new CMAC verify behavior and examples. |
.wolfssl_known_macro_extras |
Add an acknowledgment macro to the known-macros list. |
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|
…as none set. Thanks to Cal Page for the report.
…G_MIN_SZ, WC_AES_BLOCK_SIZE]. Fixes F-3084.
…OLFSSL_RSA_VERIFY_ONLY are defined as they don't use blinding.
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Description
Fixes zd#21507, F-2624, F-3084.
Testing
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