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| Name: libnettle9 | Distribution: openSUSE Tumbleweed |
| Version: 4.0 | Vendor: openSUSE |
| Release: 1.1 | Build date: Fri Feb 6 10:00:52 2026 |
| Group: System/Libraries | Build host: reproducible |
| Size: 426979 | Source RPM: libnettle-4.0-1.1.src.rpm |
| Packager: http://bugs.opensuse.org | |
| Url: https://www.lysator.liu.se/~nisse/nettle/ | |
| Summary: Cryptographic Library | |
Nettle is a cryptographic library that is designed to fit easily in more or less any context: In crypto toolkits for object-oriented languages (C++, Python, Pike, ...), in applications like LSH or GNUPG, or even in kernel space.
LGPL-2.1-or-later
* Fri Feb 06 2026 Pedro Monreal <pmonreal@suse.com>
- Update to 4.0: (bsc#1257934)
* NEWS for the Nettle 4.0 release:
- This is a new major release. It includes one new feature,
support for SLH-DSA. There are several changes to Nettle's
API, as well as deletion of obsolete features. There are also
several improvements to the ABI that leaves the API mostly
unchanged, in particular, smaller context structs for several
algorithms.
The most disruptive API change is that the *_digest functions
no longer takes the desired digest size as argument. Truncated
hashes appeared to be an important use case decades ago when
the previous interface was designed, but that is now rather
obscure.
Feedback on the new interfaces is appreciated, e.g., if the
variable tag length for OCB and CCM should be supported
differently, if additional types would benefit from larger
alignment, or if there are remaining interface bugs or
inconsistencies. Smaller additional API or ABI changes may be
considered for the next release, Nettle-4.1, but after that,
the intention is that both ABI and API should stay backwards
compatible for a longer time.
The shared library names are libnettle.so.9.0 and
libhogweed.so.7.0, with new sonames libnettle.so.9 and
libhogweed.so.7.
* Interface changes:
- The _digest functions for hash algorithms, MACs and AEADs no
longer take the desired digest size as argument, instead,
they always produce the full-size digest. The typedef
nettle_hash_digest_func has also been changed accordingly.
There are two exceptions: CCM and OCB. These AEAD algorithms
are specified with a variable tag length, which is not a
mere truncation of the output. Their _digest functions
(ccm_digest, ocb_digest, ccm_ae128_digest, ...) also have
their length argument deleted, but they still produce a
variable size digest. The number of octets to write (at most
16) is stored into the context struct by the corresponding
_set_nonce function.
- The functions to process complete messages using CCM AES now
take a const cipher context as the first argument, e.g,
first argument to ccm_aes128_encrypt_message is now a const
struct aes128_ctx *. It used to be a struct ccm_aes128_ctx
* , where everything but the underlying cipher context was
ignored.
- The SHA3 functions now use the same struct sha3_ctx for all
flavors, and the same function sha3_init. Old names, e.g.,
sha3_256_ctx and sha3_256_init, are defined as preprocessor
aliases, for backwards compatibility.
- The dst_length argument to base16_decode_update and
base64_decode_update is now both an input and output
argument. On input it must now hold the size of the
destination buffer, and decoding fails if that is not
sufficient. Previously, dst_length was an output only, and
it was required that the destination buffer was large enough
for any input of the given src_length.
* Interface deletions:
- Deleted the old struct aes_ctx, and all functions operating
on it. Use the fixed key size interfaces instead, e.g.,
struct aes256_ctx, introduced in Nettle-3.0.
- Deleted dsa-compat.h, and everything declared therein. Use
the interface in dsa.h, introduced in Nettle-3.0.
- Deleted old header sha.h. Use sha1.h or sha2.h instead, as
appropriate.
- Deleted the general HMAC interface, with functions like
hmac_set_key that work with an arbitrary underlying hash
function. Use the specific hmac functions instead, e.g.,
hmac_sha256_set_key, or the mac abstraction defined in
nettle-meta.h, e.g, the nettle_hmac_sha256 instance.
- Deleted the undocumented struct nettle_armor abstraction.
- Deleted the undocumented function base64_encode_group.
- Deleted md5-compat.h, and everything declared therein. Use
the interface in md5.h instead (or even better, stop using md5).
- Deleted pgp.h, and everything declared therein. This attempt
to support openpgp formats was incomplete, undocumented, and
mostly obsolete.
- Delete all the *_DATA_SIZE compatibility aliases. Use
corresponding *_BLOCK_SIZE constants instead, introduced in
Nettle-3.0.
- Deleted the obsolete functions _rsa_blind and _rsa_unblind.
(Current RSA blinding in Nettle uses internal functions with
a different interface).
- Delete compatibility aliases salsa20_set_iv,
SALSA20_IV_SIZE. These were renamed to salsa20_set_nonce and
SALSA20_NONCE_SIZE in Nettle-3.0.
- Deleted compatibility aliases _nettle_md5_compress,
_nettle_sha1_compress. These internal functions were
promoted to documented and supported functions in
Nettle-3.9, with new names md5_compress and sha1_compress.
- Deleted compatibility alias yarrow_force_reseed. Renamed to
yarrow_slow_reseed in Nettle-2.0.
* ABI changes and improvements:
- Introduce 16-byte alignment on certain types. Applied to
union nettle_block16, and subkey arrays of AES and UMAC.
This is intended to improve performance for SIMD load and
store instructions, which on some platforms may be faster
with proper alignment. The larger alignment is enabled only
for platforms where the alignment of the uint64_t type is 8.
- Size of struct gcm_key is reduced from 4096 bytes to 2048.
- Size of the new sha3_ctx is considerable smaller, 216 bytes,
than the previous types that included a buffer for a
complete block. E.g., the largest one, for sha3_128_ctx
(shake128), used to be 376 bytes.
- Size of HMAC contexts have been reduced, by not including
multiple block buffers. E.g, size of struct hmac_sha256_ctx
reduced from 336 bytes to 192. This change has been
discussed for a long time, with first attempt made by Dmitry
Baryshkov years ago, but delayed, since it implies an ABI
break.
- For OCB block counters, use type uint32_t for blocks of
associated data, and uint64_t for message blocks, instead of
size_t. This makes the implementation limits the same for
32-bit and 64-bit platforms.
* Bug fixes:
- Fix off-by-one bug in sexp parser, which could result in a
one byte overread on invalid input. Also fix excessive
recursion and stack usage for some inputs. Both problems
reported via oss-fuzz.
- Fix ed448_shake256_verify to check that the final signature
octet is zero (previous versions completely ignored this
somewhat redundant octet). Reported by Oren Yomtov.
* New features:
- Support for SLH-DSA signatures (stateless hash-based digital
signature algorithm). See the Nettle manual for details.
- New public function drbg_ctr_aes256_update, to enable
FIPS-compliant reseeding. Contributed by Daiki Ueno.
* Configure and build changes:
- Support for at least C99 is required when building Nettle.
In addition, support for alignof and alignas is required;
these are part of C11, but intention is that this is the
only required C11 feature.
- The unusual configure options --with-lib-path and
- -with-include-path has been deleted. Use CFLAGS and LDFLAGS
instead. This implies that Nettle's configure script no
longer attempts to add rpath-related linker flags
automagically; if any are needed, they must be passed in
LDFLAGS.
- The logic to sometimes change the default libdir has been
deleted. Previously, configure tried to be helpful and
change the default, e.g., to ${exec_prefix}/lib32 when you
build 32-bit libraries on a system where ${exec_prefix}/lib
is for 64-bit libraries. If you relied on this behavior, you
now have to use the --libdir configure option.
- Rearranged getopt files, now based on gnulib copies.
* Sun Jun 29 2025 Andreas Stieger <andreas.stieger@gmx.de>
- update to 3.10.2:
* Fix missing prototypes in getopt.h and getopt.c
* For powerpc64, avoid using v9 (ISA v3.0) instructions lxvb16x,
lxv and stxv in powerpc64/p8/ files.
* For powerpc64, add configure check for __VSX__, and disable
use of assembly if not defined. Nettle's powerpc64 assembly
requires at least v7 (ISA v2.06)
- drop libnettle-powerpc64-skip-AES-GCM-test.patch
* Thu Jan 09 2025 Pedro Monreal <pmonreal@suse.com>
- Disable the gcm regression test as it fails in virtual
environments for the ppc64le architecture.
* Add libnettle-powerpc64-skip-AES-GCM-test.patch
* Thu Jan 02 2025 Pedro Monreal <pmonreal@suse.com>
- Update to nettle 3.10.1:
* Bug fixes:
- Fix buffer overread in the new sha256 assembly for
powerpc64, as well as a stack alignment issue.
- Added missing nettle_mac structs for hmac-gosthash.
- Fix configure test for valgrind, to not attempt to run
valgrind on executables built using memory sanitizers.
* Enable back the gcm regression test:
- Remove libnettle-powerpc64-skip-AES-GCM-test.patch
* Remove patches upstream:
- libnettle-powerpc64-sha256-fix-loading-overreads.patch
- libnettle-powerpc64-sha256-adjust-stack-offset-for-non-volatile-registers.patch
- libnettle-powerpc64-remove-m4_unquote-sha256.patch
* Tue Dec 03 2024 Pedro Monreal <pmonreal@suse.com>
- ppcl64le: POWER10 performance enhancements for cryptography [jsc#PED-9904]
* powerpc64/sha256: fix loading overreads by loading less and shifting
* powerpc64/sha256: adjust stack offset for storing non-volatile registers
* powerpc64: remove use of m4_unquote in the load step for sha256
* Temporarily skip the gcm test: libnettle-powerpc64-skip-AES-GCM-test.patch
* Add patches:
- libnettle-powerpc64-sha256-fix-loading-overreads.patch
- libnettle-powerpc64-sha256-adjust-stack-offset-for-non-volatile-registers.patch
- libnettle-powerpc64-remove-m4_unquote-sha256.patch
* Mon Jun 17 2024 Pedro Monreal <pmonreal@suse.com>
- Update to 3.10:
* Bug fixes:
- Add missing hash functions sha512_224 and sha512_256 to the
nettle_get_hashes() list. The name values in the
corresponding nettle_hash structs also changed to use
underscore instead of dash, for consistency.
- Fix a few cases of formally undefined calls to memcpy(dst,
NULL, 0), resulting from valid calls to, e.g.,
sha256_update(ctx, 0, NULL).
* New features:
- Support RSA-OAEP encryption. Contributed by Nicolas Mora and Daiki Ueno.
- New function sha3_256_shake_output, new functions
sha3_128_init, sha3_128_update, sha3_128_shake,
sha3_128_shake_output. Contributed by Daiki Ueno.
- Added DRBG-CTR with AES256, contributed by Simon Josefsson.
* Optimizations:
- New combined gcm-aes assembly for powerpc64, contributed by Danny Tsen.
- New sha256 assembly for powerpc64, contributed by Eric Richter.
- Improved performance for powerpc64 AES decrypt, by skipping
subkey transformations that don't suit the vncipher instructions.
- Add arm64 CPU feature detection for Android and for Apple systems,
contributed by Foolbar and Tim Kosse, prespectively.
* Miscellaneous:
- New tests for side-channel silence, based on valgrind.
- Delete all md5 assembly code. Delete all sparc32 assembly code.
* Fri Jun 09 2023 Pedro Monreal <pmonreal@suse.com>
- Add the architecture specific READMEs as provided by upstream.
* Thu Jun 08 2023 Pedro Monreal <pmonreal@suse.com>
- Include the nettle library manual in HTML and PDF formats in
the devel package.
* Wed Jun 07 2023 Andreas Stieger <andreas.stieger@gmx.de>
- update to 3.9.1: [bsc#1212112, CVE-2023-36660]
* Fix bug in the new OCB code may be exploitable for denial of
service or worse due to memory corruption
* Mon May 15 2023 Andreas Stieger <andreas.stieger@gmx.de>
- update to 3.9
* rewrite of the C and plain x86_64 assembly implementations of
GHASH to use precomputed tables in a different way, with tables
always accessed in the same sequential manner. This should make
Nettle's GHASH implementation side-channel silent on all
platforms, but considerably slower on platforms without carry-
less mul instructions. E.g., benchmarks of the C implementation
on x86_64 showed a slowdown of 3 times.
* Fix bug in ecdsa and gostdsa signature verify operation, for
the unlikely corner case that point addition really is point
duplication.
* Fix for chacha on Power7, nettle's assembly used an instruction
only available on later processors
* Add support for the SM4 block cipher
* Add support for the Balloon password hash
* Add support for SIV-GCM authenticated encryption mode
* Add support for OCB authenticated encryption mode.
* New exported functions md5_compress, sha1_compress,
sha256_compress, sha512_compress
* multiple performance optimizations
* Delete all arcfour assembly code. Affects 32-bit x86, 32-bit
and 64-bit sparc
* Wed Mar 08 2023 Martin Pluskal <mpluskal@suse.com>
- Build AVX2 enabled hwcaps library for x86_64-v3
/usr/lib/.libnettle.so.9.hmac /usr/lib/libnettle.so.9 /usr/lib/libnettle.so.9.0 /usr/share/licenses/libnettle9 /usr/share/licenses/libnettle9/COPYING.LESSERv3 /usr/share/licenses/libnettle9/COPYINGv2 /usr/share/licenses/libnettle9/COPYINGv3
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