This patch implements Ascon-Hash256. Ascon-Hash256 is a hash function as a part
of the Ascon-Based Lightweight Cryptography Standards for Constrained Devices,
published as NIST SP 800-232 (https://csrc.nist.gov/pubs/sp/800/232/final).

Signed-off-by: Rusydi H. Makarim <rusydi.makarim@kriptograf.id>
---
Changes in v2:
- lib/crypto: fix compilation error of hash_info.c
- lib/crypto: fix build warning of tests/ascon_hash_kunit.c
- Link to v1: https://lore.kernel.org/r/20251215-ascon_hash256-v1-0-24ae735e571e@kriptograf.id

---
Rusydi H. Makarim (3):
      lib/crypto: Add KUnit test vectors for Ascon-Hash256
      lib/crypto: Initial implementation of Ascon-Hash256
      crypto: Crypto API implementation of Ascon-Hash256

 crypto/Kconfig                         |   7 +
 crypto/Makefile                        |   1 +
 crypto/ascon_hash.c                    |  86 ++++++++++++
 include/crypto/ascon_hash.h            |  83 ++++++++++++
 include/crypto/hash_info.h             |   1 +
 include/uapi/linux/hash_info.h         |   1 +
 lib/crypto/Kconfig                     |   8 ++
 lib/crypto/Makefile                    |   5 +
 lib/crypto/ascon_hash.c                | 169 ++++++++++++++++++++++++
 lib/crypto/hash_info.c                 |   2 +
 lib/crypto/tests/Kconfig               |   9 ++
 lib/crypto/tests/Makefile              |   1 +
 lib/crypto/tests/ascon_hash-testvecs.h | 235 +++++++++++++++++++++++++++++++++
 lib/crypto/tests/ascon_hash_kunit.c    |  33 +++++
 14 files changed, 641 insertions(+)
---
base-commit: 92de2d349e02c2dd96d8d1b7016cc78cf80fc085
change-id: 20251214-ascon_hash256-704130f41b29

Best regards,
-- 
Rusydi H. Makarim <rusydi.makarim@kriptograf.id>