Replace the liboqs-based pre-standardization SPHINCS+ implementation
with the native FIPS 205 SLH-DSA implementation across the
certificate / ASN.1 / X.509 layers, and add SLH-DSA-rooted test
certificates plus TLS 1.3 .conf scenarios that exercise the new
verification path. All liboqs SPHINCS+ code is removed.
This enables SLH-DSA for certificate chain authentication: CA
certificates signed with SLH-DSA, certificate signature verification
against an SLH-DSA root. TLS 1.3 entity authentication via
CertificateVerify with SLH-DSA will be added in a follow-up PR.
Follows RFC 9909 (X.509 Algorithm Identifiers for SLH-DSA) and
NIST FIPS 205. Supports both SHAKE and SHA-2 parameter families
across all twelve standardized variants.
DER codec:
- New PrivateKeyDecode, PublicKeyDecode, KeyToDer, PrivateKeyToDer,
PublicKeyToDer with RFC 9909 encoding (bare OCTET STRING containing
4*n raw bytes = SK.seed || SK.prf || PK.seed || PK.root, no nested
wrapper). OID auto-detection across all twelve SHAKE / SHA-2 variants.
- PublicKeyDecode raw-bytes fast path mirrors wc_Falcon_PublicKeyDecode
and wc_Dilithium_PublicKeyDecode so callers (notably
wolfssl_x509_make_der and ConfirmSignature, which pass the raw
BIT STRING contents stashed by StoreKey) decode correctly. Honours
the caller's *inOutIdx start offset.
- Error paths in Private/PublicKeyDecode preserve params/flags/
inOutIdx and only ForceZero the buffer half each helper actually
writes; skip the wipe entirely on BAD_LENGTH_E (no bytes touched).
- ImportPublic uses |= on flags so a Private-then-Public import
sequence retains FLAG_PRIVATE.
OID dispatch:
- 12 standardized NIST OIDs (6 SHAKE + 6 SHA-2) per RFC 9909. The
pre-standardization OID-collision mechanism is removed since NIST
OIDs do not collide.
- wc_SlhDsaOidToParam / wc_SlhDsaOidToCertType return NOT_COMPILED_IN
(rather than -1) for recognised SLH-DSA OIDs whose parameter set
isn't built; wc_IsSlhDsaOid recognises both. The x509 dispatch
surfaces this as a precise diagnostic instead of the generic
"No public key found".
- wc_GetKeyOID picks a placeholder parameter from whatever variant is
compiled in and #errors at compile time if none is.
- asn_orig.c EncodeCert / EncodeCertReq accept SHA-2 SLH-DSA keyTypes
alongside SHAKE.
Tests and fixtures:
- Test cert chain in certs/slhdsa/: SLH-DSA-SHAKE-128s and
SLH-DSA-SHA2-128s self-signed roots that sign reused ML-DSA-44
entity keys (server + client), plus the gen script
(gen-slhdsa-mldsa-certs.sh, OpenSSL >= 3.5).
- New TLS 1.3 .conf scenarios under tests/suites.c dispatch:
test-tls13-slhdsa-shake.conf, test-tls13-slhdsa-sha2.conf, and a
wrong-CA negative test test-tls13-slhdsa-fail.conf.
- DER round-trip and on-disk decode tests; bench_slhdsa_*_key.der
fixtures regenerated with wolfSSL's own encoder so the codec is
pinned to RFC 9909.
- New unit test test_wc_slhdsa_x509_i2d_roundtrip exercises the raw
PublicKeyDecode entry point that wolfssl_x509_make_der relies on.
- test_wc_slhdsa_check_key now tests both Public-then-Private and
Private-then-Public import orderings.
Build / ABI:
- DYNAMIC_TYPE_SPHINCS = 98 kept as RESERVED with a tombstone comment
for ABI stability; new code should use DYNAMIC_TYPE_SLHDSA (107).
- All build system / IDE project files updated; SPHINCS+ sources,
headers, and test data removed.
- Dead bench_slhdsa_*_key arrays removed from gencertbuf.pl and
certs_test.h; the .der files on disk drive the decode tests.
Automated replacement with
```
git ls-files -z wolfcrypt/src/port/ IDE/ | xargs -0 pcre2grep -l '[^_]AES_BLOCK_SIZE' | xargs sed --regexp-extended --in-place 's/([^_])AES_BLOCK_SIZE/\1WC_AES_BLOCK_SIZE/g'
```
Checked for mis-transformations with
```
git ls-files -z | xargs -0 pcre2grep '[^-[()+*/[:space:]]WC_AES_BLOCK_SIZE' | less
```
Checked for residual hits with
```
git ls-files -z | xargs -0 pcre2grep '[^_]AES_BLOCK_SIZE' | less
```
Deliberately excluded:
* ChangeLog.md -- do not alter history.
* doc/ -- do not confuse documentation with newly prefixed macro, because AES_BLOCK_SIZE is available unless -DOPENSSL_COEXIST.
* tests/api.c -- the unit tests deliberately use compatibility names, and are not compatible with -DOPENSSL_COEXIST.
* wrapper/CSharp/wolfSSL_CSharp/wolfCrypt.cs -- false positive hits on C# names.
* wrapper/CSharp/wolfCrypt-Test/wolfCrypt-Test.cs -- false positive hits on C# names.
* reference in wolfssl/wolfcrypt/aes.h that defines AES_BLOCK_SIZE when -UOPENSSL_COEXIST.
* reference in wolfssl/wolfcrypt/settings.h that defines WC_AES_BLOCK_SIZE for old FIPS when -UWC_AES_BLOCK_SIZE.
```
Start wolf tsip crypt Test
simple crypt test by using TSIP
sha_test() passed
sha256_test() passed
tsip_aes_cbc_test() passed
tsip_aes256_test() passed
tsip_rsa_test(2048) passed
tsip_rsa_SignVerify_test(2048) passed
End wolf tsip crypt Test
```
.github/workflows/codespell.yml: remove */README_jp.txt from "skip" list.
IDE/Renesas/cs+/Projects/t4_demo/README_jp.txt: convert from SHIFT_JIS to UTF-8.
cmake/options.h.in: use "#cmakedefine HAVE_PTHREAD 1" to avoid conflict with config.h.
configure.ac: add --enable-c89, and remove !ENABLED_OPENSSLEXTRA dependency from AM_CONDITIONAL([BUILD_CRYPTONLY],...).
wolfcrypt/src/asn.c: refactor SetOthername() for efficiency, and add PRAGMA_GCC to suppress false positive -Wstringop-overflow associated with -fstack-protector.
wolfssl/wolfcrypt/rsa.h: add WC_ prefixes to RSA_PKCS1_PADDING_SIZE and RSA_PKCS1_OAEP_PADDING_SIZE, and define unprefixed compat aliases only if !OPENSSL_COEXIST.
wolfssl/wolfcrypt/types.h:
#ifdef WOLF_C89, #define WC_BITFIELD unsigned;
enhance WOLF_ENUM_DUMMY_LAST_ELEMENT() to include the line number, to construct unique labels given a per-filename argument, to accommodate anonymous enums.
examples/asn1/asn1.c:
examples/client/client.c:
examples/pem/pem.c:
examples/server/server.c:
wolfcrypt/src/sp_dsp32.c:
wolfcrypt/src/wc_port.c:
wolfssl/test.h:
use XMALLOC/XREALLOC/XFREE consistently, not malloc/realloc/free.
wolfcrypt/benchmark/benchmark.c:
wolfcrypt/src/memory.c:
wolfcrypt/test/test.c:
wolfssl/wolfcrypt/mem_track.h:
wolfssl/wolfcrypt/settings.h:
wolfssl/wolfcrypt/types.h:
annotate intentional native heap access with "/* native heap */".
wolfcrypt/src/asn.c:
wolfssl/callbacks.h:
wolfssl/openssl/ec.h:
wolfssl/openssl/ssl.h:
wolfssl/wolfcrypt/hpke.h:
wolfssl/wolfcrypt/types.h:
fix enum trailing commas.
wolfssl/openssl/ec.h:
wolfssl/openssl/evp.h:
wolfssl/openssl/rsa.h:
wolfssl/openssl/ssl.h:
use WC_BITFIELD in bitfield elements, not byte or word16, to allow for pedantic C89 conformant builds.
wolfssl/openssl/ec.h:
wolfssl/openssl/evp.h:
wolfssl/openssl/pem.h:
wolfssl/openssl/ssl.h:
wolfssl/wolfcrypt/logging.h:
avoid variadic macros wherever possible, and where unavoidable, #ifdef WOLF_NO_VARIADIC_MACROS, define them with empty arg lists, rather than ..., to support Watcom compiler.
wolfssl/wolfcrypt/settings.h: if defined(__WATCOMC__), define WOLF_NO_VARIADIC_MACROS.
David Garske
Tobias Frauenschläger
Hideki Miyazaki
JacobBarthelmeh
Daniel Pouzzner
Andras Fekete