This series is targeting libcrypto-next. It can also be retrieved from:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git mldsa-v2
This series adds support for verifying ML-DSA signatures to lib/crypto/.
Patch 1 is the ML-DSA implementation itself. See that for full details.
Patch 2 adds the KUnit test suite.
The initial use case for this will be kernel module signature
verification. For more details, see David Howells' patchset
https://lore.kernel.org/linux-crypto/20251120104439.2620205-1-dhowells@redhat.com/
Changed in v2:
- Reworked the KUnit test suite
- Improved commit messages and comments
- Added missing MODULE_DESCRIPTION() and MODULE_LICENSE()
- Made the return values of mldsa_verify() differentiate between an
input being malformed and the "real" signature check failing
- Refactored w1 encoding into a helper function
- Used kfree() instead of kfree_sensitive()
- Avoided unusal C syntax by accessing the hint vector via 'u8 *'
- Reworked use_hint() to be better optimized and documented
Eric Biggers (2):
lib/crypto: Add ML-DSA verification support
lib/crypto: tests: Add KUnit tests for ML-DSA verification
include/crypto/mldsa.h | 53 +
lib/crypto/Kconfig | 7 +
lib/crypto/Makefile | 5 +
lib/crypto/mldsa.c | 651 ++++++++++
lib/crypto/tests/Kconfig | 9 +
lib/crypto/tests/Makefile | 1 +
lib/crypto/tests/mldsa-testvecs.h | 1877 +++++++++++++++++++++++++++++
lib/crypto/tests/mldsa_kunit.c | 381 ++++++
8 files changed, 2984 insertions(+)
create mode 100644 include/crypto/mldsa.h
create mode 100644 lib/crypto/mldsa.c
create mode 100644 lib/crypto/tests/mldsa-testvecs.h
create mode 100644 lib/crypto/tests/mldsa_kunit.c
base-commit: c0127f3ad65e8b21752f7b4d7dbe7e4ab5b5c62d
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2.52.0