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.
Add SRAM PUF (Physically Unclonable Function) support to wolfCrypt. Derives device-unique cryptographic keys from the power-on state of SRAM memory using a BCH(127,64,t=10) fuzzy extractor with HKDF key derivation.
- **wolfCrypt PUF API** (`wolfcrypt/src/puf.c`, `wolfssl/wolfcrypt/puf.h`)
- `wc_PufInit`, `wc_PufReadSram`, `wc_PufEnroll`, `wc_PufReconstruct`
- `wc_PufDeriveKey` (HKDF-SHA256), `wc_PufGetIdentity` (SHA-256 device fingerprint)
- `wc_PufZeroize` (secure context cleanup)
- `wc_PufSetTestData` (synthetic SRAM for testing without hardware)
- **BCH(127,64,t=10) error-correcting codec** - corrects up to 10 bit flips per 127-bit codeword across 16 codewords
- **`WC_PUF_SHA3` build option** - select SHA3-256 instead of SHA-256 for identity hash and HKDF (default: SHA-256)
- **Precomputed GF(2^7) tables** - `const` arrays in `.rodata` (no runtime init, thread-safe, flash-resident on embedded)
- `./configure --enable-puf` (auto-enables HKDF dependency)
- CMake: `WOLFSSL_PUF=yes`
- `WOLFSSL_USER_SETTINGS`: define `WOLFSSL_PUF` and `WOLFSSL_PUF_SRAM`
- See wolfssl-examples/puf for example implementation on STM32 NUCLEO-H563ZI (Cortex-M33, STM32H563ZI)
- Supports test mode (synthetic SRAM)
- Builds to ~13KB `.elf`
- Tested on NUCLEO-H563ZI: enrollment, noisy reconstruction, key derivation all pass
- `.github/workflows/puf.yml`: host build + test workflow for PUF feature
- Doxygen API docs for all 8 public functions
- PUF group added to `doxygen_groups.h`
Implement RFC8773bis (draft-ietf-tls-8773bis-13)
cert_with_extern_psk for TLS 1.3, including protocol checks
and API support.
Includes unit tests for API and handshake behavior as well
as tests in the testsuite using extended examples.
* implement legacy compatibility in settings.h and configure.ac (adds --enable-blake2b while retaining --enable-blake2);
* fix incorrect Blake2 gates in wolfcrypt/src/hash.c wc_HashGetDigestSize() and wc_HashGetBlockSize();
* in wolfcrypt/test/test.c hash_test(), backfill missing Blake2 test coverage and separate blake2b from blake2s in typesHashBad[];
* in tests/api/test_hash.c, separate blake2b from blake2s in notCompiledHash[], sizeSupportedHash[], and sizeNotCompiledHash[].
* Enable ML-KEM by default in build systems (autoconf and CMake)
* Only allow three to-be-standardized hybrid PQ/T combinations by
default
* Use X25519MLKEM768 as the default KeyShare in the ClientHello (if user
does not override that). When Curve25519 is disabled, then either
WOLFSSL_SECP384R1MLKEM1024 or WOLFSSL_SECP256R1MLKEM768 is used as
default depending on the ECC configuration
* Disable standalone ML-KEM in supported groups by default (enable with
--enable-tls-mlkem-standalone)
* Disable extra OQS-based hybrid PQ/T curves by default and gate
behind --enable-experimental (enable with --enable-extra-pqc-hybrids)
* Reorder the SupportedGroups extension to reflect the preferences
* Reorder the preferredGroup array to also reflect the same preferences
* Add async support for ML-KEM hybrids
* Minor fixes to the CMakeLists.txt
* Add more options to the CMake infrastructure already present in the
autoconf infrastructure
* An autoconf build now also generates and installs files required to
consume the installed wolfssl library via CMake.
* Added test for autoconf-CMake interworking
Work is mostly done by Codex and Curser.
* More PQC configurations
* More CMake setups
* Fix various bugs uncovered by these tests
Added some missing feature additions to CMake to make the example
`user_settings_all.` config file work for the CI test.
* Add `WOLFSSL_USER_SETTINGS` to CMake `options.h.in`
* Add CMake support for Dilithium
* Add user_settings.h support for aes_asm.S
* Add PKCS#11 support to CMake
* Minor ARM assembly port fixes
append thumb2 files, append inline c files with BUILD_ARMASM_INLINE
add all asm files. move curve25519 files under BUILD_CURVE25519
include remaining files
* Add support for CMake
* Add support for Zephyr
* Make sure the internal key state is properly handled in case a public
key is imported into a reloaded private key.
Signed-off-by: Tobias Frauenschläger <tobias.frauenschlaeger@oth-regensburg.de>
* activate WOLFSSL_NO_OPTIONS_H in linuxkm/Kbuild for in-module test.o and benchmark.o.
* refine explanatory comments in settings.h re WOLFSSL_USE_OPTIONS_H, WOLFSSL_NO_OPTIONS_H, and WOLFSSL_CUSTOM_CONFIG.
* add safety catch to options.h/options.h.in to inhibit inclusion if defined(WOLFSSL_NO_OPTIONS_H).
* for good measure, add explicit check for WOLFSSL_NO_OPTIONS_H to wolfcrypt/benchmark/benchmark.c and wolfcrypt/test/test.c.
.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.
All required dependencies of a package must also be found in the
package configuration file. Consumers of wolfSSL can't know
if it was built with or without threads support. This change
adds find_package(Threads) lookup in the file used for
find_package(wolfssl) if wolfSSL was built with threads support.
No functional changes.
Several compat symbols that were formerly enums are now macros.
All library source is refactored to use only native symbols in all code gated in with --enable-all-crypto --enable-opensslextra.
wolfcrypt/test/test.c is similarly refactored to use only native symbols.
examples/ and tests/ are unmodified except for header setup to disable OPENSSL_COEXIST and TEST_OPENSSL_COEXIST.
Make sure the file `sha3_asm.S` is compiled when `WOLFSSL_INTEL_ASM` is
enabled using CMake.
Signed-off-by: Tobias Frauenschläger <tobias.frauenschlaeger@oth-regensburg.de>
* Make sure wc_kyber implementation is compiled using CMake (also for
Zephyr)
* Fix compilation issue when Liboqs is also enabled
* Fix WOLFSSL_INTEL_ASM and WOLFSSL_ARM_ASM CMake options
Signed-off-by: Tobias Frauenschläger
<tobias.frauenschlaeger@oth-regensburg.de>
Improve the interface to liboqs by properly configuring and using the
RNG provided by WolfSSL from within liboqs.
Signed-off-by: Tobias Frauenschläger <t.frauenschlaeger@me.com>
Kareem
Tobias Frauenschläger
David Garske
night1rider
Daniel Pouzzner
JacobBarthelmeh
Anthony Hu
Anthony Hu
Tobias Frauenschläger
Sean Parkinson
Ruby Martin
gojimmypi
Tobias Frauenschläger
Maxim Ivanov
Brett Nicholas
Eric Blankenhorn
oltolm
Faraz Fallahi
Lealem Amedie